Predator-prey relationships for coyote (Canis latrans), ocelot (Leopardus pardalis), and puma (Puma concolor) in Costa Rican ecosystems

 Predator-prey relationships for coyote (Canis latrans), ocelot (Leopardus pardalis), and puma (Puma concolor) in Costa Rican ec
Research paper
Description: 

Evaluating predatory-prey relationships is critical for understanding the dynamics of ecosystems and implementing effective conservation efforts. I investigated whether Neotropical mammalian predators select prey based on relative abundance alone, on a subset of known prey species regardless of abundance, or on a combination of both. Data collected from camera traps located in seven sites in Costa Rica were used to calculate coefficients of overlapping (∆) to assess the similarity of activity patterns between predators and their prey. Likelihood ratio tests were used to compare linear models of the three prey selection methods in which the dependent variable was ∆. Additionally, important prey species were identified for each predator using ∆, as well as the regression relationship of prey relative abundance index (RAI) and prey mass to ∆. The results indicated that coyote selected prey in relation to RAI, while both puma and ocelot hunted specific prey species, although puma were more strongly influenced by RAI. 

 

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WHDL ID: 
WHDL-00015175
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