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Biodiversity Commons

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Full-Text Articles in Biodiversity

Abundance And Distribution Of Large Mammals In The Upper Ogun Game Reserve, Oyo State, Nigeria, T. A. Afolayan, K. R. N. Milligan, S. O. Salami Jan 1983

Abundance And Distribution Of Large Mammals In The Upper Ogun Game Reserve, Oyo State, Nigeria, T. A. Afolayan, K. R. N. Milligan, S. O. Salami

International Journal for the Study of Animal Problems

Three different methods for estimating wild animal populations were used to assess the density of different species in a game reserve in the Sahel region of Nigeria. Hunting for bushmeat by local communities living around the reserve was identified as one of the threats to wildlife populations. Bushmeat was an essential resource for communities around the reserve.


The North American Black Duck (Anas Rubriges): A Case Study Of 28 Years Of Failure In American Wildlife Management, John W. Grandy Jan 1983

The North American Black Duck (Anas Rubriges): A Case Study Of 28 Years Of Failure In American Wildlife Management, John W. Grandy

International Journal for the Study of Animal Problems

A scientific and technical analysis is presented of the factors that may have been responsible for an estimated 60% decline in the black duck (Anas rubripes) population since 1955. The analyses presented show that the U.S. Fish and Wildlife Service (FWS], the management agency responsible for waterfowl management in the United States, has recognized the population decline, that the FWS's own experts have consistently recognized that hunting is the most likely cause of the population decline and that hunting is the only mortality factor which wildlife managers can control in the practical sense. Using FWS information, the author …


Biological Control Of Aleutian Island Arctic Fox: A Preliminary Strategy, Edward W. West, Robert L. Rudd Jan 1983

Biological Control Of Aleutian Island Arctic Fox: A Preliminary Strategy, Edward W. West, Robert L. Rudd

International Journal for the Study of Animal Problems

The intentional introduction of exotic animals can generally be expected to yield unanticipated biological consequences. Single-purpose introductions frequently result in ecological catastrophe. Islands are particularly vulnerable to such assault. Arctic foxes [Alopex lagopus), released for fur farming on the Aleutian Islands, formerly devoid of land predators, have significantly altered nesting avifaunal diversity, abundance, and productivity. A program for restoring the historical distribution and abundance of critically affected bird species is described. In a long-term study, biological control methods are proposed to test the hypothesis that introduced sterile red foxes [Vulpes fulva), apparently, a competitively superior species, will markedly …