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Estimating The Population Size Of Lemurs Based On Their Mutualistic Food Trees, James P. Herrera, Cortni Borgerson, Lydia Tongasoa, Pascal Andriamahazoarivosoa, B. J.Rodolph Rasolofoniaina, Eli R. Rakotondrafarasata, J. L.Rado Ravoavy Randrianasolo, Steig E. Johnson, Patricia C. Wright, Christopher D. Golden
Estimating The Population Size Of Lemurs Based On Their Mutualistic Food Trees, James P. Herrera, Cortni Borgerson, Lydia Tongasoa, Pascal Andriamahazoarivosoa, B. J.Rodolph Rasolofoniaina, Eli R. Rakotondrafarasata, J. L.Rado Ravoavy Randrianasolo, Steig E. Johnson, Patricia C. Wright, Christopher D. Golden
Department of Anthropology Faculty Scholarship and Creative Works
Aim: Species’ distributions and abundances are primarily determined by the suitability of environmental conditions, including climate and interactions with sympatric species, but also increasingly by human activities. Modelling tools can help in assessing the extinction risk of affected species. By combining species distribution modelling of abiotic and biotic niches with population size modelling, we estimated the abundance of 19 lemur taxa in three regions, especially focusing on 10 species that are considered Endangered or Critically Endangered. Location: Madagascar. Taxa: Lemurs (Primates) and angiosperm trees. Methods: We used climate data, field samples, and published occurrence data on trees to construct species …
Who Hunts Lemurs And Why They Hunt Them, Cortni Borgerson, Margaret A. Mckean, Michael R. Sutherland, Laurie R. Godfrey
Who Hunts Lemurs And Why They Hunt Them, Cortni Borgerson, Margaret A. Mckean, Michael R. Sutherland, Laurie R. Godfrey
Department of Anthropology Faculty Scholarship and Creative Works
The main threats to lemurs are habitat loss and hunting. Conservation policies often assume that people will decrease lemur hunting if they understand government prohibitions on hunting, are educated and/or involved in ecotourism, have access to affordable meat, and/or are healthy and financially secure. Yet these assumptions are often not well tested where conservation policies are implemented. We interviewed every member of a focal village in one of the most biodiverse places on earth, the Masoala peninsula of Madagascar. The factors that best predicted the decision to hunt lemurs were poverty, poor health, and child malnutrition. Knowledge of laws, level …
The Effects Of Illegal Hunting And Habitat On Two Sympatric Endangered Primates, Cortni Borgerson
The Effects Of Illegal Hunting And Habitat On Two Sympatric Endangered Primates, Cortni Borgerson
Department of Anthropology Faculty Scholarship and Creative Works
Threats to primates result from the complex relationship between ecological processes and the direct and the indirect impacts of humans. Yet we know little about the proportional impacts of hunting and changes to habitat on individual primate species. This knowledge is critical to effective conservation. I used primate surveys, habitat analysis, interviews, and one year of direct observation of hunter behavior and catch to compare the relative impacts of altered habitat and snare trapping on two sympatric lemur species: the two largest-bodied and most endangered lemurs on the Masoala peninsula of Madagascar, Varecia rubra (the red ruffed lemur; Critically Endangered) …