At the intersection of geography and public health, the field of spatial epidemiology seeks to use the tools of geospatial analysis to answer questions about disease. In this work we explore two areas: the use of geostatistical modeling as an extension of niche modeling, and the use of mobility metrics to augment modeling for epidemic responses. Niche modeling refers to the practice of using statistical methods to relate the underlying spatially distributed environmental variables to an outcome, typically presence or absence of a species. Such work is common in disease ecology, and often focuses on exploring the range of a disease vector or pathogen. The technique also allows one to explore the importance of each underlying regressor, and the effect it has on the outcome. We demonstrate that this concept can be extended, through geostatistical modeling, to explore non-logistic phenomena such as incidence. When combined with weather forecasts, such efforts can even predict incidence of an upcoming season, allowing us to estimate the total number of expected cases, and where we would expect to find them. We demonstrate this in Chapter 2, by forecasting the incidence of melioidosis in Australia given weather forecasts a year prior. We also evaluate the efficacy of this technique and explore the impact of environmental variables such as elevation on melioidosis. But these techniques are not limited to free-living and vector-borne pathogens. We theorize that they can also be applied to diseases that spread exclusively by person-to-person contact. Exploring this allows us to find areas of underreporting, as well as areas with unusual local forcing which might merit further investigation by the health department. We also explore this in Chapter 4, by relating the incidence of hepatitis C in rural Virginia to demographic data. The West African Ebola Outbreak of 2014 demonstrated the need to include mobility in predictive disease modeling. One can no longer assume that neglected tropical diseases will remain contained and immobile, and the assumption of random mixing across large areas is unwise. Our efforts with modeling mobility are twofold. In Chapter 3, we demonstrate the creation of mobility metrics from open source road and river network data. We then demonstrate the usefulness of such data in a meta-population patch model meant to forecast the spread of Ebola in the Democratic Republic of Congo. In Chapter 4, we also demonstrate that mobility data can be used to strengthen outbreak detection via hotspot analysis, and to augment incidence models by factoring in the incidence rates of neighboring areas. These efforts will allow health departments to more accurately forecast incidence, and more readily identify disease hotspots of atypical size and shape. ; Doctor of Philosophy ; The focus of this work is called spatial epidemiology, which combines geography with public health, to answer the where, and why, of disease. This is a growing field, and youve likely seen it in the news and media. Have you ever seen a map of the United States turning red in some virus disaster movie? The real thing looks a lot like that. After the Ebola outbreak of 2014, public health agencies wanted to know where the next one might hit. Now that there is another outbreak, we need to ask where and how will it spread? What areas are hardest hit, and how bad is it going to get? We can answer all these questions with spatial epidemiology. Our work adds to two aspects of spatial epidemiology: niche modeling, and mobility. We use niche modeling to determine where we could find certain diseases, usually those that are spread by insects or animals. Consider Lyme disease, you get it from the bite of a tick, and the tick gets it from a white-footed mouse. But both the mice and ticks only live in certain parts of the country. With niche modeling we can determine where those are, and we can also guess at what makes those areas attractive to the mice and ticks. Is it winter harshness, summer temperatures, rainfall, and/or elevation? Is it something else? In Chapter 2, we show that you can extend this idea. Instead of just looking at where the disease is, what if we could guess how many people will get infected? What if we could do so, a year in advance? We show that this can be done, but we need a good idea of what the weather will be like next year. In Chapter 4, we show that you can do the same thing with hepatitis C. Instead of Lymes ticks and mice, hepatitis C depends on drug-use, unregulated tattooing, and unsafe sex. And like with Lyme, these things are only found in certain places. Instead of temperature or rainfall, we now need to find areas with drug-problems and poverty. But we can get an idea of this from the Census Bureau, and we can make a map of hepatitis C as easily as we did for Lyme. But hepatitis C spreads person-to-person. So, we need some idea of how people move around the area. This is where mobility comes in. Mobility is important for most public health work, from detecting outbreaks to estimating where the disease will spread next. In Chapter 3, we show how one could create a mobility model for a rural area where few maps exist. We also show how to use that model to guess where the next cases of Ebola will show up. In Chapter 4, we show how you could use mobility to improve outbreak and hotspot detection. We also show how its used to help estimate the number of cases in an area. Because that number depends on how many cases are imported from the surrounding areas. And the only way to estimate that is with mobility.
Die zunehmende Problematisierung von Fleischkonsum und die Aufwertung nachhaltiger Ernährungsstile sind für den Autor Ausgangspunkt für eine Rekonstruktion der Geschichte alternativer Ernährung in Deutschland aus religionswissenschaftlicher Perspektive. Vom organisierten Vegetarismus im 19. Jahrhundert über Vollwert- und Naturkost im 20. Jahrhundert bis zum "Bio-Boom" der jüngsten Vergangenheit zeichnet er die Transformationen von nonkonformistischen Innovationen zu vermeintlichen Mainstreamphänomenen nach und analysiert: Was genau wurde wie adaptiert und kompatibel gemacht? Welche Faktoren haben die Prozesse beeinflusst? Mit seiner Synthese leistet der Autor einen fundierten theoretischen Beitrag zur Modellierung kultureller Dynamiken.
La palabra "pampa" en el sudeste de América del Sur se refiere a las amplias llanuras, a veces levemente onduladas, cubiertas de pastizales. Las pampas junto con otros pastizales de similares características abarcan parte de las provincias políticas de Buenos Aires, Córdoba, Corrientes, Entre Ríos, La Pampa, Misiones, San Luis, Santa Fe en la República Argentina, el estado de Rio Grande do Sul y áreas pequeñas de los estados de Santa Catarina y Paraná en la República Federativa de Brasil, los departamentos de Misiones, Itapuá, Paraguarí y Caazapá en la República del Paraguay y toda la República Oriental del Uruguay. El enorme territorio abarcado por estos pastizales, con más de 760000 km2, lo convierte en uno de los mayores y más variados del mundo, con gradientes climáticos, edáficos y topográficos amplísimos y distintas unidades de vegetación. Diversas comunidades edáficas, como bosques, selvas marginales, vegetación casmófita y comunidades psamófilas, se intercalan en esta matriz de pastizales conformando "islas" y corredores biogeográficos. Los pastizales de las pampas y campos constituyen ambientes muy frágiles. Las invasiones biológicas en las planicies y el desplazamiento de la fauna y flora más delicada ya se advertían desde el siglo XIX. Los pastizales pampeanos constituyen la zona de producción agrícola-ganadera más antigua de Argentina y han sufrido gran pérdida de paisajes, hábitat y biodiversidad naturales por los cambios de uso de la tierra. Lo que antes era una matriz de pastizal natural con parches de cultivo, se transformó en una matriz de cultivo de la cual paulatinamente han desaparecido los parches de pastizal natural. Esto pone en riesgo la sobrevivencia de flora y fauna nativa por la destrucción, fragmentación o pérdida de calidad del hábitat original, la introducción de competencia de animales domésticos, la caza y la contaminación con agroquímicos. A pesar de estas problemáticas solo está protegida una proporción ínfima de los pastizales pampeanos. Los pastizales pampeanos han sido delimitados biogeográficamente como Provincia Pampeana (PP) por autores como Cabrera y Willink en 1973, Soriano et al. en 1992 y Morrone en 2014, con divergencia de opiniones en cuanto a los límites de la PP y de sus unidades internas denominadas distritos. Por ejemplo, algunos consideran que el límite oeste de la PP está dado por el inicio de los bosques de la Provincia del Espinal mientras que otros consideran que el Espinal forma parte de la PP. También algunas comunidades edáficas como los bosques y humedales del sistema fluvial del Plata, las dunas costeras marinas, o las sierras de Ventania, han sido objeto de discusión por su difícil ubicación biogeográfica en los distritos de la PP dado que su biota es muy diferente a la de los pastizales. Algunos autores incluso sugirieron la posibilidad de que pertenezcan a otras provincias biogeográficas. Para superar todas estas limitaciones se propone en esta tesis una nueva delimitación de la PP y de sus distritos, y la identificación de áreas de la PP que sean prioritarias para su conservación. Para la delimitación de la PP y sus unidades se propuso un nuevo abordaje que implica tratar los taxones por separado: (1) analizar la distribución de los taxones animales y vegetales netamente pampeanos, es decir, de pastizales y bosques xerófilos (Espinal), estén presentes o no también en las comunidades edáficas; (2) analizar la distribución de los taxones animales y vegetales que habitan exclusivamente las comunidades edáficas. Posteriormente, se integran los resultados en un esquema de regionalización. Para la conservación de áreas prioritarias se utilizó el mapa de Áreas Valiosas de Pastizal (AVP´s) en el que se ubican las áreas de pastizal en buen estado de conservación de la región. Los objetivos de esta tesis son: 1) Definir y delimitar la provincia Pampeana (PP) como un área de endemismo (ADE) mediante la superposición de la distribución geográfica de sus taxones endémicos. 2) Establecer distritos biogeográficos como ADE menores anidadas dentro de la PP sobre la base de métodos biogeográficos basados en la división del área de estudio en polígonos (Análisis de parsimonia de endemismos, Análisis de agrupamientos, NMDS). 3) Establecer el grado de pertenencia de ciertas comunidades edáficas de la PP (e.g., bosques y humedales de la Baja Cuenca del Plata, dunas costeras marinas, sierras de Ventania) y otras áreas problemáticas (caldenal y brazo de pastizales Puntano-Pampeanos) sobre la base del método de superposición de sus taxones endémicos y el análisis de la proporción de corotipos. 4) Integrar toda la información obtenida en los ítems anteriores (e.g., nueva regionalización, endemismos, conexión entre las poblaciones, fragilidad ecológica, grado de fragmentación de ciertos ambientes) para identificar si existen ADE que quedan fuera del sistema actual de áreas protegidas en la PP. Las hipótesis que sustentan esta tesis son: 1. La superposición de la distribución geográfica de diversos taxones permite establecer un ADE que se corresponde con la unidad biogeográfica denominada Provincia Pampeana (PP). Los límites de esta ADE no necesariamente coinciden en toda su extensión con los esquemas biogeográficos vigentes. 2. Los métodos biogeográficos basados en polígonos permiten establecer ADE menores que se corresponden con unidades biogeográficas dentro de la PP (distritos, subdistritos, sectores). Los límites de estas ADE no necesariamente coinciden en toda su extensión con los esquemas biogeográficos vigentes. 3. El método biogeográfico de superposición permite establecer que algunas comunidades edáficas actualmente incluidas en la PP están más relacionadas con otras provincias biogeográficas y, por lo tanto, deberían ser excluidas de la PP. 4. Toda la información obtenida en este estudio es relevante para fijar los objetivos de conservación de futuras áreas protegidas y para establecer áreas que son prioritarias para conservar. Algunas de estas áreas no están contenidas dentro del sistema actual de áreas protegidas. La primera etapa del trabajo consistió en un análisis exhaustivo de las principales regionalizaciones previas de la PP para delimitar el área inicial de estudio, la cual se subdividió en 217 hexágonos de 50 km de lado. Utilizando criterios muy rigurosos, se seleccionaron los taxones a utilizar en la tesis: plantas vasculares, insectos, arácnidos y vertebrados. Se recopiló la información distribucional de los taxones seleccionados a partir material bibliográfico, bases de datos, ejemplares de colecciones y numerosos viajes de campo incluyendo lugares poco explorados. En cada uno de esos datos se aseguró la confiabilidad de la identificación taxonómica. En total se compilaron 2449 registros de 208 taxones que sirvieron para construir la matriz básica de datos de hexágonos por especie. La matriz se analizó con métodos biogeográficos modernos que emplean polígonos: a) métodos jerárquicos como Análisis de Simplicidad de Endemismos y Análisis de Agrupamientos; y b) métodos no jerárquicos de ordenación como Escalado Multidimensional no Métrico (NMDS, nonmetric multidimensional scaling). En los dos casos se usó el programa de computación R v. 4.0.2. A estas técnicas se sumó el método de superposición que consiste en el solapamiento de las distribuciones geográficas de especies sobre un mapa para reconocer las áreas de coincidencia entre dos o más de ellas. En la segunda etapa, se evaluó qué áreas de la PP tienen escasa protección de su biodiversidad. Para ello se mapearon las unidades preexistentes de conservación de la biodiversidad de los sistemas nacionales o provinciales de áreas protegidas en la PP, se las comparó con el mapa de distritos y subdistritos que resultó de los pasos anteriores y se evaluó en qué zonas haría falta establecer más unidades de conservación. Para evaluar cuáles son las áreas prioritarias para la conservación de la biodiversidad en la PP, se utilizó el mapa de Áreas Valiosas de Pastizal (AVP´s) en el que se ubican las áreas de pastizal en buen estado de conservación de la región. Se señalaron: A. Aquellas AVP´s ubicadas en hexágonos de mayor riqueza de endemismos (hexágonos con registros de más de diez especies de las que fueron utilizadas en la matriz básica de datos. B. Las AVP´s ubicadas en hexágonos en donde se registran microendemismos. Se consideró que una especie es microendémica en los casos en que la distribución geográfica es de menor extensión areal que el hexágono en el que se ubica. Las AVP´s que cumplen con los dos criterios, A y B, se consideran de mayor prioridad que las que suman solo uno de ellos o ninguno. Los resultados arrojaron una nueva delimitación de la PP, con tres distritos biogeográficos y 11 subdistritos: Provincia Pampeana Distrito Pampas Argentinas Subdistrito Pampeano Occidental Subdistrito Pampa Deprimida e Interserrana Subdistrito Pampa Pedemontana Subdistrito Pampa Ondulada y Entrerriana Subdistrito Pampa Cordobesa Distrito Uruguayo-Mesopotámico Subdistrito Campos Gaúchos Subdistrito Cuchilla de Haedo Subdistrito Campos Australes Subdistrito Campos Misionero-Correntinos Subdistrito de los Ñandubayzales Subdistrito del Espinal Perideltaico Distrito Dunas Atlánticas Este nuevo esquema fue comparado con las regionalizaciones anteriores, con la historia geológica y climática y con la ecología de la región, hallando similitudes y diferencias con los autores previos. Desde el punto de vista de la conservación de la biodiversidad, se detectaron AVP's con un alto número de taxones endémicos: los pastizales de Chasicó a Villa Iris, la Laguna Salada Grande de Madariaga (Buenos Aires), Cerrilladas – llanura periserrana del Sistema de Tandilia (Buenos Aires), el Refugio de Vida Silvestre Morro Santana (Rio Grande do Sul), los Campos de la frontera oeste (Rio Grande do Sul) y los Pastizales intersticiales del litoral del Río Uruguay (Uruguay). Estas áreas poseen pastizales bien conservados, alta riqueza de endemismos pampeanos y especies microendémicas. Al comparar las áreas resultantes con el actual mapa de áreas protegidas de la PP, se halló que estas últimas son insuficientes y no representan adecuadamente la biodiversidad de esta provincia. Existe actualmente un mayor énfasis en la protección de humedales mientras que la biota de la PP, en su mayoría, no es una biota de zonas húmedas, sino que está adaptada a la estacionalidad hídrica y térmica, y en algunos casos a los incendios periódicos. ; The word "pampas" in southeastern South America refers to the wide, sometimes slightly undulated plains covered with grasslands. The pampas along with other grasslands of similar characteristics cover part of the political provinces of Buenos Aires, Córdoba, Corrientes, Entre Ríos, La Pampa, Misiones, San Luis, Santa Fe in Argentina, the state of Rio Grande do Sul and areas of the states of Santa Catarina and Paraná in Brazil, the departments of Misiones, Itapuá, Paraguarí and Caazapá in Paraguay and the entire Uruguay. The enormous territory covered by these grasslands, with more than 760,000 km2, makes it one of the largest and most varied in the world, with very wide climatic, edaphic, and topographic gradients and different vegetation units. Diverse edaphic communities, such as forests, marginal forests, casmophyte vegetation and psamofilic communities, are interspersed in this matrix of grasslands, forming "islands" and biogeographic corridors. The grasslands of the pampas and fields constitute very fragile environments. Biological invasions and the displacement of the most delicate fauna and flora had already been noticed since the 19th century. Pampa grasslands constitute the oldest agricultural-livestock production area in Argentina and have suffered great loss of landscapes, habitat, and natural biodiversity due to changes in land use. What was previously a natural grassland matrix with crop patches, has been transformed into a crop matrix from which the natural grassland patches have gradually disappeared. This puts the survival of native flora and fauna at risk due to the destruction, fragmentation, or loss of quality of the original habitat, the introduction of competition from domestic animals, hunting and contamination with agrochemicals. Despite these problems, only a tiny proportion of the Pampas grasslands are protected. The Pampean grasslands have been biogeographically delimited as Pampean Province Pampeana (PP) by authors such as Cabrera and Willink in 1973, Soriano et al. in 1992 and Morrone in 2014, with differing opinions regarding the limits of the PP and its internal units called districts. For example, some consider that the western limit of the PP is given by the beginning of the forests of the Espinal Province, while others consider that the Espinal is part of the PP. Also, some edaphic communities such as the forests and wetlands of the Río de La Plata system, the coastal marine dunes, or the Ventania mountain ranges, have been the subject of discussion due to their difficult biogeographic placement in the districts of the PP since their biota is very different from that of the grasslands. Some authors even suggested the possibility that they belong to other biogeographic provinces. In order to overcome all these limitations, a new delimitation of the PP and its districts is proposed in this thesis, together with the identification of areas of the PP that are a priority for their conservation. For the delimitation of the PP and its units, a new approach was proposed that involves treating the taxa separately: (1) to analyze the distribution of Pampean animal and plant taxa, that is, of grasslands and xerophilous forests (Espinal), whether they are present or not also in the edaphic communities; (2) to analyze the distribution of animal and plant taxa that exclusively inhabit edaphic communities. Subsequently, the results are integrated into a regionalization scheme. For the conservation of priority areas, the map of Valuable Grassland Areas (AVP's) was used, in which the grassland areas in a good condition of conservation in the region are located. The objectives of this thesis are: 1) To define and delimit the Pampean Province (PP) as an area of endemism (ADE) by overlapping the geographical distribution of its endemic taxa. 2) To establish biogeographic districts as minor ADE's nested within the PP on the basis of biogeographic methods based on the division of the study area into polygons (Parsimony analysis of endemicity, Cluster analysis, NMDS). 3) To establish the degree of belonging of certain edaphic communities of the PP (e.g., forests and wetlands of the Lower Plata Basin, coastal marine dunes, Sierra de Ventania) and other problem areas (caldenal and Puntano-Pampean grasslands) on the basis of the method of superposition of their endemic taxa and the analysis of the proportion of chorotypes. 4) To integrate all the information obtained in the previous items (e.g., new regionalization, endemisms, connection between populations, ecological fragility, degree of fragmentation of certain environments) to identify if there are ADE's that fall outside the current system of protected areas in the PP. The hypotheses that support this thesis are: 1. The overlapping of the geographical distribution of multiple taxa allows establishing an ADE that corresponds to the biogeographic unit called Pampean Province (PP). The limits of this ADE do not necessarily coincide completely with current biogeographic schemes. 2. Polygon-based biogeographic methods allow establishing smaller ADEs that correspond to biogeographic units within the PP (districts, sub-districts, sectors). The limits of these ADE's do not necessarily coincide completely with the current biogeographic schemes. 3. The biogeographic method of overlapping allows establishing that some edaphic communities currently included in the PP are more related to other biogeographic provinces and, therefore, should be excluded from the PP. 4. All the information obtained in this study is relevant for setting the conservation objectives of future protected areas and for establishing priority areas to conserve. Some of these areas are not contained within the current system of protected areas. The first step of this work consisted of an exhaustive analysis of the main previous regionalizations of the PP to delimit the initial study area, which was subdivided into 217 hexagons of 50 km on each side. Using very rigorous criteria, the taxa to be used in the thesis were selected: vascular plants, insects, arachnids, and vertebrates. The distributional information of the selected taxa was compiled from the literature, databases, collection specimens and numerous field trips including poorly explored places. In each of these data, the reliability of the taxonomic identification was ensured. In total, 2449 records of 208 taxa were compiled that were used to build the basic matrix of hexagons by species. The matrix was analyzed with modern biogeographic methods that use polygons: a) hierarchical methods such as Parsimony Analysis of Endemicity and Cluster Analysis; and b) non-hierarchical ordering methods such as Non-Metric Multidimensional Scaling (NMDS). In both cases, the R v. 4.0.2. computer program was used. It was also employed the overlapping method that consists of superimposing the geographic distributions of species on a map to recognize the coincident areas of two or more of them. In the second step, the areas of the PP that have little protection of their biodiversity was evaluated. The pre-existing units of biodiversity conservation of the national or provincial systems of protected areas in the PP were mapped, they were compared with the map of districts and sub-districts that resulted from the previous steps, and it was evaluated in which areas it would be necessary to establish more conservation units. To evaluate which are the priority areas for the conservation of biodiversity in the PP, the map of Valuable Pasture Areas (AVP's) was used, in which the grassland areas in good conservation status of the region are located. There were highlighted: A. Those AVP's located in hexagons with the highest endemic richness (hexagons with records of more than ten species). B. AVP's located in hexagons with microendemisms. A species was considered as microendemic when its geographic distribution area is minor than the hexagon in which it is located. The AVP's that meet the two criteria, A and B, are of higher priority. The results yielded a new delimitation of the PP, with three biogeographic districts and 11 sub-districts: Pampean Province Distrito Pampas Argentinas Subdistrito Pampeano Occidental Subdistrito Pampa Deprimida e Interserrana Subdistrito Pampa Pedemontana Subdistrito Pampa Ondulada y Entrerriana Subdistrito Pampa Cordobesa Distrito Uruguayo-Mesopotámico Subdistrito Campos Gaúchos Subdistrito Cuchilla de Haedo Subdistrito Campos Australes Subdistrito Campos Misionero-Correntinos Subdistrito de los Ñandubayzales Subdistrito del Espinal Perideltaico Distrito Dunas Atlánticas This new scheme was compared with previous regionalizations, with the geological and climatic history and with the ecology of the region, finding similarities and differences with previous authors. From the biodiversity conservation point of view, the AVP's with a high number of endemic taxa were detected: the grasslands from Chasicó to Villa Iris, the Laguna Salada Grande de Madariaga (Buenos Aires), Cerrilladas - periserrana plain of the Tandilia System (Buenos Aires), the Morro Santana Wildlife Refuge (Rio Grande do Sul), the fields of the western border (Rio Grande do Sul) and the interstitial grasslands of the Uruguay River coast (Uruguay). These areas have well-preserved grasslands, high richness of pampean endemisms and microendemic species. When comparing the resulting areas with the current map of protected areas of the PP, it was found that the latter are insufficient and do not adequately represent the biodiversity of this province. There is currently a greater emphasis on the protection of wetlands while the PP biota, for the most part, is not a hygrophylous biota but is adapted to hidric and thermal seasonality, and in some cases to periodic fires. ; Facultad de Ciencias Naturales y Museo
The global lockdown to mitigate COVID-19 pandemic health risks has altered human interactions with nature. Here, we report immediate impacts of changes in human activities on wildlife and environmental threats during the early lockdown months of 2020, based on 877 qualitative reports and 332 quantitative assessments from 89 different studies. Hundreds of reports of unusual species observations from around the world suggest that animals quickly responded to the reductions in human presence. However, negative effects of lockdown on conservation also emerged, as confinement resulted in some park officials being unable to perform conservation, restoration and enforcement tasks, resulting in local increases in illegal activities such as hunting. Overall, there is a complex mixture of positive and negative effects of the pandemic lockdown on nature, all of which have the potential to lead to cascading responses which in turn impact wildlife and nature conservation. While the net effect of the lockdown will need to be assessed over years as data becomes available and persistent effects emerge, immediate responses were detected across the world. Thus, initial qualitative and quantitative data arising from this serendipitous global quasi-experimental perturbation highlights the dual role that humans play in threatening and protecting species and ecosystems. Pathways to favorably tilt this delicate balance include reducing impacts and increasing conservation effectiveness. ; The Canada Research Chairs program provided funding for the core writing team. Field research funding was provided by A.G. Leventis Foundation; Agence Nationale de la Recherche, [grant number ANR-18-32–0010CE-01 (JCJC PEPPER)]; Agencia Estatal de Investigaci; Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), [grant number M1420-09-5369-FSE-000002]; Alan Peterson; ArcticNet; Arkadaşlar; Army Corp of Engineers; Artificial Reef Program; Australia's Integrated Marine Observing System (IMOS), National Collaborative; Research Infrastructure Strategy (NCRIS), University of Tasmania; Australian Institute of Marine Science; Australian Research Council, [grant number LP140100222]; Bai Xian Asia Institute; Batubay Özkan; BC Hydro Fish and Wildlife Compensation Program; Ben-Gurion University of the Negev; Bertarelli Foundation; Bertarelli Programme in Marine Science; Bilge Bahar; Bill and Melinda Gates Foundation; Biology Society of South Australia; Boston University; Burak Över; California State Assembly member Patrick O'Donnell; California State University Council on Ocean Affairs, Science & Technology; California State University Long Beach; Canada Foundation for Innovation (Major Science Initiative Fund and funding to Oceans Network Canada), [grant number MSI 30199 for ONC]; Cape Eleuthera Foundation; Centre National d'Etudes Spatiales; Centre National de la Recherche Scientifique; Charles Darwin Foundation, [grant number 2398]; Colombian Institute for the Development of Science and Technology (COLCIENCIAS), [grant number 811–2018]; Colombian Ministry of Environment and Sustainable Development, [grant number 0041–2020]; Columbia Basin Trust; Commission for Environmental Cooperation; Cornell Lab of Ornithology; Cultural practices and environmental certification of beaches, Universidad de la Costa, Colombia, [grant number INV.1106–01–002-15, 2020–21]; Department of Conservation New Zealand; Direction de l'Environnement de Polynésie Française; Disney Conservation Fund; DSI-NRF Centre of; Excellence at the FitzPatrick Institute of African Ornithology; Ecology Project International; Emin Özgür; Environment and Climate Change Canada; European Community: RTD programme - Species Support to Policies; European Community's Seventh Framework Programme; European Union; European Union's Horizon 2020 research and innovation programme, Marie Skłodowska-Curie, [grant number 798091, 794938]; Faruk Eczacıbaşı; Faruk Yalçın Zoo; Field research funding was provided by King Abdullah University of Science and Technology; Fish and Wildlife Compensation Program; Fisheries and Oceans Canada; Florida Fish and Wildlife Conservation Commission, [grant numbers FWC-12164, FWC-14026, FWC-19050]; Fondo Europeo de Desarrollo Regional; Fonds québécois de la recherche nature et technologies; Foundation Segré; Fundação para a Ciência e a Tecnologia (FCT Portugal); Galapagos National Park Directorate research, [grant number PC-41-20]; Gordon and Betty Moore Foundation, [grant number GBMF9881 and GBMF 8072]; Government of Tristan da Cunha; Habitat; Conservation Trust Foundation; Holsworth Wildlife Research Endowment; Institute of Biology of the Southern Seas, Sevastopol, Russia; Instituto de Investigación de Recursos Biológicos Alexander von Humboldt; Instituto Nacional de Pesquisas Espaciais (INPE), Brazil; Israeli Academy of Science's Adams Fellowship; King Family Trust; Labex, CORAIL, France; Liber Ero Fellowship; LIFE (European Union), [grant number LIFE16 NAT/BG/000874]; Mar'a de Maeztu Program for Units of Excellence in R&D; Ministry of Science and Innovation, FEDER, SPASIMM,; Spain, [grant number FIS2016–80067-P (AEI/FEDER, UE)]; MOE-Korea, [grant number 2020002990006]; Mohamed bin Zayed Species Conservation Fund; Montreal Space for Life; National Aeronautics and Space Administration (NASA) Earth and Space Science Fellowship Program; National Geographic Society, [grant numbers NGS-82515R-20]; National Natural Science Fund of China; National Oceanic and Atmospheric Administration; National Parks Board, Singapore; National Science and Technology Major Project of China; National Science Foundation, [grant number DEB-1832016]; Natural Environment Research Council of the UK; Natural Sciences and Engineering Research Council of Canada (NSERC), Alliance COVID-19 grant program, [grant numbers ALLRP 550721–20, RGPIN-2014-06229 (year: 2014), RGPIN-2016-05772 (year: 2016)]; Neiser Foundation; Nekton Foundation; Network of Centre of Excellence of Canada: ArcticNet; North Family Foundation; Ocean Tracking Network; Ömer Külahçıoğlu; Oregon State University; Parks Canada Agency (Lake Louise, Yoho, and Kootenay Field Unit); Pew Charitable Trusts; Porsim Kanaf partnership; President's International Fellowship Initiative for postdoctoral researchers Chinese Academy of Sciences, [grant number 2019 PB0143]; Red Sea Research Center; Regional Government of the Azores, [grant number M3.1a/F/025/2015]; Regione Toscana; Rotary Club of Rhinebeck; Save our Seas Foundation; Science & Technology (CSU COAST); Science City Davos, Naturforschende Gesellschaft Davos; Seha İşmen; Sentinelle Nord program from the Canada First Research Excellence Fund; Servizio Foreste e Fauna (Provincia Autonoma di Trento); Sigrid Rausing Trust; Simon Fraser University; Sitka Foundation; Sivil Toplum Geliştirme Merkezi Derneği; South African National Parks (SANParks); South Australian Department for Environment and Water; Southern California Tuna Club (SCTC); Spanish Ministry for the Ecological Transition and the Demographic Challenge; Spanish Ministry of Economy and Competitiveness; Spanish Ministry of Science and Innovation; State of California; Sternlicht Family Foundation; Suna Reyent; Sunshine Coast Regional Council; Tarea Vida, CEMZOC, Universidad de Oriente, Cuba, [grant number 10523, 2020]; Teck Coal; The Hamilton Waterfront Trust; The Ian Potter Foundation, Coastwest, Western Australian State NRM; The Red Sea Development Company; The Wanderlust Fund; The Whitley Fund; Trans-Anatolian Natural Gas Pipeline; Tula Foundation (Hakai Institute); University of Arizona; University of Pisa; US Fish and Wildlife Service; US Geological Survey; Valencian Regional Government; Vermont Center for Ecostudies; Victorian Fisheries Authority; VMRC Fishing License Fund; and Wildlife Warriors Worldwide.
[Résumé] L'intérêt pour la conservation et surtout la gestion de la faune sauvage est relativement récent en Guyane. En conséquence, très peu de données sont actuellement disponibles pour étayer la mise en place d'une gestion durable adaptée aux conditions locales. Cependant, depuis quelques années, des études nouvelles dans de nombreuses disciplines complémentaires sont lancées, visant à mieux comprendre le rôle et l'impact de l'homme sur la faune sauvage, dans le but affiché d'améliorer la gestion et la conservation de celle-ci. Cet article propose un bilan de la situation actuelle au niveau des législations locales, des connaissances scientifiques, des outils disponibles et des études en cours dans le domaine complexe de la chasse et de la conservation de la faune sauvage, qui implique tout autant le contexte socio-économique, avec sa complexité ethnologique locale, que la dimension écologique et biologique particulière du milieu tropical.
La conservation de la diversité biologique des forêts publiques est un objectif premier établi par le Code forestier (article L. 101) et par la nouvelle Loi d'orientation forestière. Afin de répondre au mieux aux exigences de conservation, les efforts de l'ONF, en collaboration avec ses partenaires, sont adaptés aux enjeux patrimoniaux. Selon les cas, l'objectif de conservation est assuré par le respect de règles de sylviculture générales ou par le classement en réserve biologique, dirigée (travaux de restauration écologique prévus), ou intégrale, réseau d'écosystèmes forestier où la libre expression des processus dynamiques peut se développer.
Nous assistons actuellement au peuplement des zones périurbaines de la planète par des centaines de millions d'individus. Cette évolution pose de redoutables problèmes et des difficultés inédites pour les politiques publiques. Si les effets de la périurbanisation sont relativement bien connus dans les pays du Nord, les analyses dédiées aux pays du Sud sont bien moins développées. L'ouvrage « Territoires périurbains : développement, enjeux et perspectives dans les pays du Sud » permet de lever un coin du voile sur cette problématique et sur les grands défis que la périurbanisation pose pour le Sud en général et pour l'Afrique centrale en particulier. L'ouvrage débute en cherchant à clarifier ce qu'il faut exactement entendre par « territoire périurbain ». À la suite de cette mise en contexte, il se poursuit par cinq parties organisées autour des problématiques des ressources naturelles, de la sécurité alimentaire, de la santé publique, des services publics et de l'aménagement des territoires. Pour chacune de ces problématiques, des chercheurs spécialisés issus de disciplines variées apportent des contributions qui, tout en soulignant l'ampleur des défis, permettent la mise en avant de solutions innovantes pour améliorer la gouvernance et le bien-être des populations. Cet ouvrage s'adresse d'abord aux chercheurs préoccupés par les défis du développement. En parallèle, par les pistes pour l'action publique qu'il esquisse, il ne manquera pas d'également intéresser les décideurs et les praticiens qui opèrent dans le contexte des territoires périurbains des pays du Sud.
Data obtained from ISSR amplification may readily be extracted but only allows us to know, for each gene, if a specific allele is present or not. From this partial information we provide a probabilistic method to reconstruct the pedigree corresponding to some families of diploid cultivars. This method consists in determining for each individual what is the most likely couple of parent pair amongst all older individuals, according to some probability measure. The construction of this measure bears on the fact that the probability to observe the specific alleles in the child, given the status of the parents does not depend on the generation and is the same for each gene. This assumption is then justified from a convergence result of gene frequencies which is proved here. Our reconstruction method is applied to a family of 85 living accessions representing the common broom Cytisus scoparius.
Data obtained from ISSR amplification may readily be extracted but only allows us to know, for each gene, if a specific allele is present or not. From this partial information we provide a probabilistic method to reconstruct the pedigree corresponding to some families of diploid cultivars. This method consists in determining for each individual what is the most likely couple of parent pair amongst all older individuals, according to some probability measure. The construction of this measure bears on the fact that the probability to observe the specific alleles in the child, given the status of the parents does not depend on the generation and is the same for each gene. This assumption is then justified from a convergence result of gene frequencies which is proved here. Our reconstruction method is applied to a family of 85 living accessions representing the common broom Cytisus scoparius.
Data obtained from ISSR amplification may readily be extracted but only allows us to know, for each gene, if a specific allele is present or not. From this partial information we provide a probabilistic method to reconstruct the pedigree corresponding to some families of diploid cultivars. This method consists in determining for each individual what is the most likely couple of parent pair amongst all older individuals, according to some probability measure. The construction of this measure bears on the fact that the probability to observe the specific alleles in the child, given the status of the parents does not depend on the generation and is the same for each gene. This assumption is then justified from a convergence result of gene frequencies which is proved here. Our reconstruction method is applied to a family of 85 living accessions representing the common broom Cytisus scoparius.
Les Pyrénées sont en situation écologique insulaire. Deux cas où la biodiversité originale des arbres de ce massif pose questions sont étudiés. Pour les chimiotaxonomistes et les palynologues, le Sapin des Pyrénées est constitué de populations originales, une occidentale et une orientale. Il est relevé que les pratiques actuelles de plantations ne tiennent pas assez compte de cette dimension génétique. Dans les zones où il a été planté, l'Epicéa - qui n'est pas naturel dans les Pyrénées - se révèle être une essence envahissante. Dans le Pays de Sault (Aude), on en trouve dans 8 % des forêts de toute composition.
In this thesis I explore the links and co-production between science and politics in Namaqualand through answering three research questions: 1. To what extent have landscapes in Namaqualand changed during the last 66 years (1939-2005), and how have different land uses contributed to the state of present landscapes? 2. How have science and policy influenced each other in the formation of local planning initiatives during the land reform process in Namaqualand? 3. In what ways do politics and land tenure models influence ecological science concerning communal land management in southern African dryland areas? Land degradation has been a recurrent theme in environmental research. Widespread erosion, overgrazing and desertification presumably caused by African smallholders have been a key concern by policymakers and development agencies for more than a century. This degradation orthodoxy is partly based on equilibrium models in ecological science and partly on modernization theories of land tenure and commercialization of agriculture. Both the equilibrium model and the focus on private land tenure have met considerable critique in Southern Africa and in Africa in general. Critics argue that dryland areas are ecologically unstable and unpredictable and therefore do not fit the equilibrium model. Further, they argue that privatization of land and limitations of grazing animals will marginalize the poorer farmers and lead to more poverty in rural areas, without contributing to more sustainable grazing areas. Still however, equilibriumbased thinking continues to influence African land and environmental policies. This project was carried out in Namaqualand, South Africa where, like in the rest of South Africa, apartheid policy brought about segregation between colored and white farmers, creating a dual agricultural system. The colored population was enclosed in small reserves, while white farmers gradually formed large farms that were later fenced. This unequal distribution of land and resources has continued until today and forms the background for the land reform process that started in 1994. The thesis is a case study of the development of knowledge about environmental change in Namaqualand. It discusses the politicized production and application of science and in doing so the thesis combines the approaches of Political Ecology and Science and Technology Studies. This thesis contributes to the existing body of literature in the following ways: The first paper combines data on land cover changes in Concordia (a communal area in Namaqualand), in a neighboring private farm and in a neighboring nature reserve, with data on the history of land use in the area. The article combines repeat photography covering a period of 66 years with interviews with local farmers on land use history and the authors find that vegetation has changed negligibly in the communal area studied over the 66-year period. While cultivation in the communal areas probably changed the landscape considerably, this change happened prior to the time period studied. In the neighboring private farm, as well as in the nature reserve, vegetation cover and species composition have recovered considerably since 1939. Thus rather than a degradation process in the communal area, we uncover a regeneration in the private farm and the nature reserve, following destocking subsidies and subsequent conservation. The second paper documents how the notion of carrying capacity was employed in a management plan developed as part of the land reform policy process in Concordia. Initially, the notion of carrying capacity was used by communal farmers to challenge the current distribution of land and the dominating idea that communal farming inherently led to degradation. Eventually, however, the concept contributed to depoliticize rangeland policy by rendering the relationship between land and livestock a question of numbers and not a question of how much land communal farmers have access to. The third paper discusses the use of photography in fenceline contrast studies within ecological science. Fence-line contrast study is a methodology used in ecology to compare to areas (divided by a fence). This way one may assume that other conditions are equal and that difference in management practice can explain visible differences found. Based on two cases from Namibia and Southern Africa, the article substantiates that fenceline contrast photographs are more than an objective representation of landscape difference. Rather, they function as models that relate ecological dynamics to presumptions of land tenure and management. The message implied in using such photographs is that communal tenure inherently leads to overgrazing and, hence, to the degradation of pastures, while private tenure results in healthy rangelands. This is a message that echoes the degradation orthodoxy, and the fenceline contrast photographs thus contribute to the current pressure on communal land tenure, even thought the data as such do not support such a pessimistic view. The overall argument of this thesis is that science and politics are intrinsically linked and coproduced, both in political processes and in the production of scientific knowledge. While the findings of the first article questions general assumptions of the validity of the degradation orthodoxy in Namaqualand, the second and the third articles show how degradation orthodoxy still influences both policy processes and science production. Thus, in order to open up for other influences and new and more fitting ecological models in policy and science, change must happen at different levels of the process of knowledge production and policy formation. ; I denne avhandlingen undersøker jeg forbindelsen og samproduksjonen mellom politikk og vitenskap i Namaqualand i Sør Afrika. Avhandlingen tar utgangspunkt i tre forskningsspørsmål: 1) I hvilken grad har landskapet i Namaqualand endret seg fra 1939 til 2005, og hvordan har ulik bruk av påvirket landskapet? 2) Hvordan påvirker vitenskap og politikk hverandre når lokale plandokumenter for beiteallmenninger skal utformes i forbindelse med jordreformprosessen i Namaqualand? 3) På hvilke måter påvirker politiske modeller for organisering av eiendom den økologiske forskningen i beiteallmenninger i det sørlige Afrika? Jordforringelse har vært et tilbakevendende tema i miljøforskningen i Afrika. Politikere, byråkrater, forskere og utviklingsorganisasjoner har trukket en sammenheng mellom fattige bønders praksis og det de har tolket som utbredt erosjon, overbeite og forørkning. I Sør-Afrika er denne oppfatningen delvis basert på likevektsmodeller innen økologien og delvis på moderniseringsteorier innen samfunnsvitenskapene. Både likevektsmodellene og fokuset på privat eierskap har møtt betydelig motstand blant forskere de siste tiårene. Kritikerne hevder at tørrlandsområder har en ustabil og uforutsigbar økologisk dynamikk, og at likevektsmodellene ikke gjenspeiler det som skjer på bakken. Følgelig mener forskere at privatisering og begrensninger i dyretall marginaliserer fattige bønder og fører til mer fattigdom på landsbygda, uten at man vet om det vil føre til en mer bærekraftig utnyttelse av beiteområdene. På tross av disse advarslene dominerer likevektstankegangen afrikansk miljø- og landbrukspolitikk. Avhandlingen bygger på et feltarbeid i Namaqualand i Sør Afrika. Dette området er i likhet med resten av Sør-Afrika merket av kolonitiden og senere av apartheidtiden. Skillet mellom fargede og hvite har ført til en todeling i landbruket. Gjennom 1800 og 1900-tallet tok settlerbøndene kontroll over mer og mer av jorda til lokale gjetere og beitefolk. De fargede bøndene ble henvist til små reservater, mens hvite settlerbønder gradvis dannet større farmer som seinere ble gjerdet inn. Denne ujevne fordelingen av jord og ressurser har fortsatt fram til i dag, og er bakgrunnen for jordreformprosessen som startet i 1994. Denne avhandlingen er en case-studie av samproduksjonen mellom politikk og økologisk vitenskap i Namaqualand. Avhandlingen diskuterer den politiserte bruken og produksjonen av vitenskap og kombinerer dermed innsikter fra politisk økologi med vitenskaps- og teknologistudier. Avhandlingen er et bidrag til den eksisterende litteraturen på følgende måter: Den første artikkelen tar utgangspunkt i data om endringer i vegetasjonsdekket i allmenningen Concordia, på en tilgrensende privat farm og på et naturreservat. Disse dataene sammenliknes med data på tidligere bruk av området. I artikkelen bruker vi gamle og nye landskapsfotografier fra en periode på 66 år. De vi finner i fotografiene analyserer vi sammen med intervjuer med lokale allmenningsbønder og farmere om den historiske bruken av området. I studien fant vi en tendens som er helt motsatt av den myndighetene har advart mot. Myndighetene har fryktet at hard bruk av allmenningen vil føre til uopprettelige skader. Men på den tilgrensende farmen og i naturreservatet viser det seg at vegetasjonen er fortettet og at artssammensetningen er gjenvunnet i løpet av disse 66 årene. Dette har skjedd som følge av apartheidstatens subsidier for å kutte dyretall på farmen på 1970-tallet og det påfølgende vernet av naturreservatet. Dermed kan ikke forskjellen i vegetasjonsdekket i beiteallmenningen på den ene siden og den private farmen og naturreservatet på den andre tilskrives forringelse i allmenningen, men en regenerering og fortetting av vegetasjonen på farmen og i naturreservatet. Dette viser for det første at en slik regenerering er mulig, og for det andre at vegetasjonen i allmenningen holder seg stabil. Den andre artikkelen dokumenterer hvordan begrepet 'bæreevne' ble brukt i en planleggingsprosess i Concordia som var en del av jordreformprosessen i Sør-Afrika. Til å begynne med ble begrepet bæreevne brukt av organisasjonen som organiserte jordreformen i Namaqualand (Surplus People Project) til å vise myndighetene at den skeive fordelingen av jord hverken var økologisk eller økonomisk bærekraftig. Begrepet ble innarbeidet i forvaltningsplanene og i beiteforskriftene, og etter at omfordelingen av jorda var avsluttet fikk bæreevnebegrepet en ny funksjon. Nå bidro 'bæreevne'-begrepet til å avpolitisere beitepolitikken ved at god forvaltning ble redusert til et spørsmål om hvor mange dyr man har på beitet og at diskusjonen om hvor mye land de fattige bøndene burde ha tilgang til ble dysset ned. Den tredje artikkelen diskuterer bruken av fotografier i gjerdekontrast-studier i økologiske akademiske tidsskrifter. Gjerdekontrast-studier er en metode brukt i økologi for å sammenlikne to områder (delt med et gjerde). Basert på to caser, en studie fra Namibia og en fra Sør-Afrika, hevder jeg at gjerdekontrast-fotografier er mer enn en objektiv representasjon av forskjeller i landskap. Like viktig er at de fungerer som modeller som relaterer økologisk dynamikk til forestillinger om at privat eierskap er det mest fordelaktige for enkeltbønders økonomi og for miljøet. Disse modellene er ikke uttalt i artiklene som er studert, men budskapet som bildene uttrykker er at felleseie av beiter i seg selv fører til overbeite og dermed til beiteforringelse, mens privat eierskap medfører en mer bærekraftig bruk. Dette er et budskap som har klangbunn i de store fortellingene om degradering og allmenning som myndighetene i Sør-Afrika og Namibia har forfektet i over hundre år. Dermed bidrar bildebruken og fortolkningen av bildene til et politisk press på allmenningen som organisasjonsform, selv om dataene i artiklene ikke tegner et så dystert bilde. Det overordnede argumentet i denne avhandlingen er at vitenskap og politikk er nøye sammenvevd, både i politiske prosesser og i produksjon av vitenskap. Funnene i den første artikkelen stiller spørsmål ved den generelle oppfatningen av forringelse av beitelandet i Namaqualand. Den andre artikkelen viser at den gamle forestillingen om degradering av almenningsområdene fortsatt påvirker politikk og vitenskap. Den tredje artikkelen viser at oppfatningene om at allmenningsbeite er skadelig lever videre gjennom bruk og fortolkning av gjerdekontrastfotografier. For å åpne opp for økologiske ikke-likevektsmodeller i politikk, og for nye tanker om hva som er bærekraftig organisering av eiendom, må dermed forandringer skje på forskjellige nivåer i politikkutforming og vitenskapsproduksjon. ; Nansenfondet : Nordiska Afrikainstitutet
L'article a pour objectif de rappeler toutes les mesures administratives, de nature informative ou juridique, qui existent dans le champ réglementaire du Code de l'Environnement, puis de présenter les ZNIEFF, enfin de dresser la liste exhaustive de tous les milieux naturels qui bénéficient d'un statut de protection. L'accent est plus particulièrement mis sur les espaces forestiers, mais sont également mentionnés les sites littoraux ou périurbains. Enfin, quelques éléments de présentation et de réflexion sont donnés pour faire valoir, d'une part, que la connaissance scientifique est encore bien loin d'avoir étudié l'ensemble de la richesse biologique de la forêt tropicale humide et, d'autre part, que les dispositions de protection de la nature font intégralement partie de l'aménagement du territoire et du développement à réaliser en Guyane.
Santrauka. Straipsnyje lyginamos tarpukario ir pokomunistinės agrarinių reformų pradinės sąlygos, eiga ir rezultatai, šį diachroninį palyginimą praplečiant ir kontroliuojant sinchroniniais palyginimais su analogiškais procesais kitose Rytų ir Vidurio Europos šalyse tarpukario ir pokomunistiniais laikais. Svarbiausius abiejų reformų panašumus lėmė 1949–51 m. kolektyvizacija, visus Lietuvos žemdirbius pastačiusi į padėtį, kurioje iki 1922 m. reformos buvo dvarų darbininkai kumečiai, kurie dalį atlyginimo gaudavo natūra – ordinarija. Jos dalis buvo dvaro inventoriumi bei gyvuliais dirbamas dvaro žemės sklypas, analogiškas kolūkiečių asmeninių pagalbinių ūkių sklypams. Skirtingai nuo Rusijos, Lietuvos kolūkiečiai nebuvo kolūkių baudžiauninkai, o tik kumečiai. Kaip ir dvarų iki 1922 m. reformos darbininkams, sovietiniams kumečiams buvo taikomas represinis darbo jėgos kontrolės režimas, suteikęs kolektyvinių ūkių vadovams faktinę "raudonųjų baronų" galią. Pagrindiniai tarpukario reformų Rytų Europos šalyse tikslai buvo anksčiau privilegijuotų tautinių mažumų galios apribojimas ir bolševizmo įtakos slopinimas. Tik Baltijos šalyse ji neturėjo neigiamų ekonominių pasekmių, ką Lietuvoje užtikrino kartu su dvarų parceliacija vykęs kaimų skirstymasis į vienkiemius. Palyginti su tarpukario reforma, pokomunistinė agrarinė reforma buvo mažiau nuosekli, nes jos eigą lėmė interesų konfliktas tarp naujos sovietinių kumečių kartos, suinteresuotų įprastų darbo vietų išsaugojimu, ir išėjusių į miestus buvusių žemės savininkų palikuonių. Kadangi Lietuva buvo viena tų pokomunistinių šalių, kuriose stipresnė buvo antroji stovykla, čia buvo įgyvendinta radikali restitucinė žemės reforma ir šeiminį ūkį restauruojanti de-kolektyvizacija. Dėl sovietmečiu įvykusios vienkiemių likvidacijos ir demografinių pokyčių, ji negrąžino Lietuvos kaimo ir žemės ūkio į 1940 m., bet sukūrė būklę, labiau primenančią Lietuvos kaimo situaciją iki 1922 m. reformos: gausus mažažemių ("trihektarininkų") sluoksnis, gatviniai kaimai (buvusios kolūkinės gyvenvietės), fragmentuota žemės valdų struktūra, iš žemės ūkio bendrovių (ŽŪB) išaugę arba naujai besikuriantys latifundiniai ūkiai, primenantys ikireforminius dvarus. Pačių ŽŪB, įsikūrusių kolūkių gamybiniuose centruose, pokomunistinė raida analogiška 1922 m. reformos apkarpytų dvarų, kurių nuosavybėje liko jų centrai, likimui: dauguma bankrutavo ir buvo išvaržyti, tačiau dalis virto konkurencingomis kapitalistinėms žemės ūkio įmonėmis. Savo ekonominiais rezultatais tarpukario reforma pranoksta pokomunistinę, nes po jos ir bendra žemės ūkio gamybos apimtis, ir jos produktyvumas tik augo, tuo tarpu kai pirmuoju pokomunistinės transformacijos dešimtmečiu abu rodikliai smuko. Ekskomunistinės kairės propaguota nuosaiki agrarinė reforma nebūtų leidusi išvengti gamybos apimties smukimo, nes tą apimtį užtikrino vėlyvuoju sovietmečiu žemės ūkiui sudarytos "ekonominio šiltnamio" sąlygos (dosnios subsidijos) ir neribota paklausa. Tačiau nuosaikesnė ar palaipsnė reforma veikiausiai būtų leidusi jau pirmajame dešimtmetyje padidinti žemės ūkio gamybos produktyvumą. Lietuvai tapus ES nare ir jos žemės ūkiui vėl patekus į "ekonominį šiltnamį", žemės ūkio veikla nebegali būti vertinama vien ekonominiais masteliais. Matuojant pokomunistinės agrarinės reformos padarinius Lietuvoje gamtosaugos vertybėmis, jie yra labai pozityvūs.Pagrindiniai žodžiai: 1922 m. žemės reforma Lietuvoje, pokomunistinė agrarinė reforma Lietuvoje, represinė darbo jėgos kontrolė, tarptautinis tarpukario ir pokomunistinių agrarinių reformų palyginimas.Key words: Land reform in Lithuania in 1922, post-communist agrarian reform ir Lithuania, repressive control of labour, international comparison of the interwar and post-communist agrarian reforms.ABSTRACTA COMPARATIVE HISTORICAL SOCIOLOGICAL ANALYSIS OF AGRARIAN REFORMS IN THE FIRST AND THE SECOND REPUBLIC OF LITHUANIAThe paper compares the initial conditions, the course and the outcomes of the interwar (1922) and the post-communist (since 1989) agrarian reforms in Lithuania, controlling and enlarging these diachronic comparisons with synchronic comparisons of the analoguos processes in other Eastern and Central European countries at the same times. Most important similarities between both reforms were created by the collectivization in 1948–1951, which for all Lithuaniam tillers shaped the condition in which before the 1922 reform the wage workers (kumečiai) at the large estates were living and working. They received in money only part of their salaries. Another part was paid in kind, including a land plot which was cultivated using the inventory and draught animals provided by landlord. This is quite similar to the small plots allocation for personal use to collective farms workers, and how they were cultivated. However, differently from the workers of collective farms in Russia, who untill late 1960s had no passports, Lithuanian collective farmers were not made serfs, because the passportization of Lithuanian countryside population was implemented by Soviet auhorities as part of their efforts to suppress resistance movement. Similarly to agrarian wage workers before 1922, collective farm workers were subject to the repressive labour force control regime, providing for managers of collective farms the de facto power of "red barons". Main aims of the interwar agrarian reforms were the restriction of power of the formerly privileged minorities and suppression of Communism. However, only in the Baltic States the reforms had no negative economic outcomes. In Lithuania, such outcomes were preempted by the dispersion of villages into individual settlement farms, which proceeded along with the parcellization of large estates. Comparing with interwar reform, post-communist agrarian reform was less consistent, because its course was under heavy impact of the interest conflict between the new generation of the collective farms workers, interested to keep their working places, and those descendants of the former land owners, who left villages for cities. As far as Lithuania was one of those post-communist countries, where second group was stronger, in this country a radical restitutive land reform was implemented along with the de-collectivization which has restored family farming. However, because of the interjacent liquidation of the individual settlements (re-concentration of rural population in the villages) and demographic changes in the Communist time, it did restore in the Lithuanian countryside and agriculture the status quo of 1940. Rather, it has created the state that is more reminiscent of situation in the Lithuanian countryside before the agrarian reform of 1922: broad social stratum of small plots (3 ha) owners; villages; a fragmented land ownership structure; and large farms reminiscent of landed estates before 1922 reform. While some of them are new ventures (e.g. huge swine-breeding farms, operated by foreignly owned agrobusiness), many emerged out of agricultural partnerships, which were the fragments of the former collective farms. They were established by former collective workers to operate technological complexes of former collective farms which were too large for using by family farms. The evolution of these remainders of collective farms is similar to the evolution of the former landlord farms after their landholdings were reduced by agrarian reform of 1922. The reform left in ownership of the landlords the buildings and other estate with part of land (up to 80–150 ha). Most of these residual estates went bankrupt and were sold in parts at auctions, while some of the survived becoming competitive agricultural enterprises. Similarly, most efficient partnerships survived, expanded and became competitive large-scale corporate capitalist agricultural enterprises. The economic outcomes of the interwar reform are superior to those of post-communist reform: after the first reform, both the general agricultural output and the productivity increased, while both indicators decreased during the first decade of the post-communist agrarian reform. Ex-communist Left in Lithuania promoted moderate agrarian reform, involving transformation of collective farms into the private corporate capitalist agricultural companies. The author argues that such reform would not be able to prevent the reduction in output, because the output as of in 1989 was possible only under economic hothouse conditions of the late Soviet time for agriculture (lavish subsidies, unlimited demand, "price scissors" favouring agriculture). However, most probably, a more gradual reform would help to increase the agricultural productivity already during its first decade. After Lithuania was accepted to EU and its agriculture is in the "economic hothouse" again, the agricultural activites cannot be assessed only by economic criteria alone. If the outcomes of the post-communist agrarian reform are assessed by values of ecology, they are very positive indeed.
Le manque de références permettant au forestier l'identification des habitats naturels dont il assure la gestion est comblé par l'élaboration d'outils de vulgarisation dans le cadre d'un programme européen : - des guides de détermination et de gestion des habitats comprenant des clés de détermination et des fiches détaillées pour chacun des types d'habitats concernés par la directive "Habitats" ainsi que des fiches traitant des espèces forestières de l'annexe II de cette même directive et de l'annexe I de la directive "Oiseaux" ; un référentiel de terrain comprenant 150 points d'observation.
