Suchergebnisse

Diets and feeding selectivities of sympatric bridled nailtail wallabies,
Onychogalea fraenata, and black- striped wallabies,
Macropus dorsalis, were studied at two sites during each
season on Taunton Scientific Reserve, Queensland. Bridled nailtail wallabies
ate a wide variety of monocotyledon and dicotyledon species (>60) in
broadly equal proportions. During dry seasons, there was a marked switch to
dicotyledons, including woody browse species, which formed over 20% of
material in faecal pellets. In contrast, black- striped wallabies were
predominantly grazers, eating a wide variety of grasses and sedges (>65
spp.). Compared with black-striped wallabies, bridled nailtail wallabies were
much more selective in their feeding, both for individual plant species and
plant parts. Bridled nailtail wallabies selected against grass species,
particularly during the dry season, and showed high selectivity for forbs in
areas where these were scarce. Black-striped wallabies generally selected
against forbs and showed random selection for grass species. Bridled nailtail
wallabies showed stronger selection for food items of relatively high
nutritional value (such as leaves and seedheads), and stronger selection
against items of relatively high fibre content (such as grass stems) than did
black-striped wallabies. Dietary overlap varied seasonally and was highest
during spring and summer. The potential for inter-specific competition was
highest during spring, when food resource abundance was lowest. The feeding
niche of bridled nailtail wallabies is narrower than that of black-striped
wallabies, indicating that the effects of competition may not be symmetric
between the wallaby species. The results of this study agree with those of
previous work on these species.

Relates to the Revolutionary history of South Carolina [-E.C.] ; Petition for settlement of claims of John de Neufville & son, merchants of Amsterdam, for losses incurred as agents of the United States government in 1781-1782. ; Mode of access: Internet.

This report looks at how well these schemes have protected households that have suffered a loss of earned income as a direct result of the COVID-19 pandemic, drawing on data from a regular tracker survey monitoring the impact of the COVID-19 crisis on household finances.

Charter schools have generated support from politicians in both major American political parties while stimulating intense debate among interest groups. We investigate whether and how public attitudes reflect interest group polarization or politician consensus. Using an original survey, we find that charter school opinions diverge along ideological lines among high‐information respondents. With embedded experiments, we manipulate respondents' information using policy cues tied to opposing sides of the charter debate: We assess whether the role of private companies and nonunion teachers changes support for charter schools. We find that the public responds favorably to some informational cues; conservatives without prior information are especially persuaded by information about nonunion teachers. This explains how polarized opinion can develop even in the absence of strong partisan sorting among top political leaders and clarifies the partisan and ideological context of ongoing education policy debates.