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The Hutton's shearwater Puffinus huttoni is an endangered species of burrowing petrel, that is threatened at its two remaining breeding colonies by the activity of introduced stoats Mustela erminea . Predation of eggs, chicks and adult shearwaters was studied over 10 consecutive breeding seasons...
Livingstone's fruit bats, Pteropus livingstonii , (Pteropodidae: Chiroptera) are endemic to only two islands, Moheli and Anjouan of the Comoros Islands in the West Indian Ocean. With an estimated population of less than 2000 individuals, P. livingstonii is listed as Critically Endangered on the...
The usefulness of higher-taxon analysis was investigated at genus-, family-, and order-levels; to estimate the species richness of mammals from localities in the Amazon and Central America. The dataset allowed the test of higher-taxon approach through all orders of mammals, and within the most...
Larger clonal sizes observed in abandoned than in managed grassland could result in increased geitonogamy in Knautia arvensis. The species was investigated for self-compatibility, seed set without pollinators, and inbreeding depression in a greenhouse experiment. Seed set was equivalent in...
Many salmon aquaculture sites in the Bay of Fundy employ acoustic harassment devices (AHDs) to deter seals from approaching fish pens. These devices may also exclude harbour porpoises ( Phocoena phocoena ) from important habitat. To determine the effects of AHDs on harbour porpoises an AHD was...
New Zealand's native birds constitute the supplementary or ‘secondary’ prey of introduced mammalian predators. Predation on secondary prey is inversely density dependent. Small populations will therefore be at greater risk of extinction than large, which escape due to the buffering effect of...
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