نتایج جستجو برای: threatened birds
تعداد نتایج: 56319 فیلتر نتایج به سال:
Variable effects of protected areas on long‐term multispecies trends for Australia's imperiled birds
Protected areas are important for preventing biodiversity declines, yet indicators of species' trends in protected rarely include threatened species. We use data from the first national Threatened Species Index developed Australia to report on and near-threatened birds inside outside terrestrial marine areas. adopted Living Planet calculate 39 bird taxa at 16,742 monitoring sites (11,539 5,203 ...
Inbreeding and endangered species management: is New Zealand out of step with the rest of the world?
There is growing evidence that inbreeding can negatively affect small, isolated populations. This contrasts with the perception in New Zealand, where it has been claimed that native birds are less affected by inbreeding depression than threatened species from continental regions. It has been argued that New Zealand's terrestrial birds have had a long history of small population size with freque...
BACKGROUND An understanding of the conservation status of Madagascar's endemic reptile species is needed to underpin conservation planning and priority setting in this global biodiversity hotspot, and to complement existing information on the island's mammals, birds and amphibians. We report here on the first systematic assessment of the extinction risk of endemic and native non-marine Malagasy...
Soto-Saravia, R. A., C. M. Garrido-Cayul, J. Avaria-Llautureo, A. Benítez-Mora, E. Hernández, and González-Suárez. 2021. Threatened neotropical birds are big, ecologically specialized, found in less humanized refuge areas. Avian Conservation Ecology 16(2):18. https://doi.org/10.5751/ACE-01948-160218
the purpose of this study was to estimate relative potential hazards to birds and bats from wind developments in texas. we compiled lists of rare, threatened, or endangered species, along with their respective ranges in texas. using a geographic information system (gis), we calculated a potential hazard index (phi) for 31 bird and ten bat species based upon the percentage of known or observed ...
Animals are able to learn to identify persistent threats to themselves and their offspring. For example, birds are able to quickly learn to discriminate between humans that have previously threatened their nests from humans with whom they have had no prior experience. However, no study has yet examined whether a bird's ability to discriminate between humans is related to the bird's underlying b...
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