Browsing by Author "Pukazhenthi, Budhan"

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    R code and data supporting: Cattle exclusion increases encounters of wild herbivores in Neotropical forests
    (2024-05-30) Vélez, Juliana; McShea, William; Pukazhenthi, Budhan; Rodríguez, Juan D; Suárez, María F; Torres, José M; Barrera, César; Fieberg, John; julianavelezgomez@gmail.com; Vélez, Juliana; Fieberg Lab
    This repository contains R code and data supporting: Cattle exclusion increases encounters of wild herbivores in Neotropical forests. This study implements a BACI experimental sampling design to quantify the effect of cattle exclusion on encounter probability of the native community of browsers and fruit consumers, and percent ground cover in multifunctional landscapes of the Colombian Orinoquía. Wildlife-permeable fences were built along forest edges in four forest patches (i.e., blocks) containing control and fenced (treatment) sites. We installed 33 camera traps to obtain information about wildlife and cattle encounter probabilities, before and after the fences were constructed. We fit Bayesian generalized linear mixed effects models to quantify the effect of fences via the interaction between the time period (before and after the fences were built) and treatment (control or fenced sites).
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    R code and data supporting: Implications of the scale of detection for inferring co-occurrence patterns from paired camera traps and acoustic recorders
    (2023-09-05) Vélez, Juliana; McShea, William; Pukazhenthi, Budhan; Stevenson, Pablo; Fieberg, John; julianavelezgomez@gmail.com; Vélez, Juliana; University of Minnesota Fieberg Lab; Smithsonian's National Zoo and Conservation Biology Institute
    The objective of this study was to investigate the association between two measures of disturbance (poaching and livestock) and wild ungulates using data collected with camera traps and autonomous acoustic recording units. We quantified these associations using joint species distribution models (JSDMs) fit to data from multifunctional landscapes of the Orinoquía region of Colombia. We also evaluated the effect of the detection scale of camera traps and acoustic recorders for inferring co-occurrence patterns between wildlife and disturbance factors.