K. Ullas Karanth
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Rigorous assessment of a unique tiger recovery in Southeast Asia based on photographic capture-recapture modeling of population dynamics Open
Tigers and other large predatory carnivores have suffered population extirpations and range contractions. This is particularly true for tiger populations in southeastern Asia, which harbours one-third of their remaining habitats. In stark …
A Spatially Explicit Capture–Recapture Model for Partially Identified Individuals When Trap Detection Rate Is Less than One Open
Spatially explicit capture–recapture (SECR) models have gained enormous popularity to solve abundance estimation problems in ecology. In this study, we develop a novel Bayesian SECR model that disentangles two processes: one is the process…
State space and movement specification in open population spatial capture–recapture models Open
With continued global changes, such as climate change, biodiversity loss, and habitat fragmentation, the need for assessment of long‐term population dynamics and population monitoring of threatened species is growing. One powerful way to e…
Estimating densities of large herbivores in tropical forests: Rigorous evaluation of a dung‐based method Open
When sighting‐based surveys to estimate population densities of large herbivores in tropical dense forests are not practical or affordable, surveys that rely on animal dung are sometimes used. This study tested one such dung‐based method b…
Substituting space for time: Empirical evaluation of spatial replication as a surrogate for temporal replication in occupancy modelling Open
Occupancy models that account for detection probability are important analytical tools in conservation monitoring. Traditionally, occupancy models relied on detection/non‐detection data generated from temporal replicates for estimating det…
View article: Spatio-temporal interactions facilitate large carnivore sympatry across a resource gradient
Spatio-temporal interactions facilitate large carnivore sympatry across a resource gradient Open
Species within a guild vary their use of time, space and resources, thereby enabling sympatry. As intra-guild competition intensifies, such behavioural adaptations may become prominent. We assessed mechanisms of facilitating sympatry among…
Supplement 2. BUGS code for model 2: information about parameter ψ informed by both photographic and fecal DNA survey data. Open
File List Supplement2.txt (md5: 94c695ea3714da73f0611cd44c99361f) Description The Supplement2.txt file is the BUGS code for Model 2 - Information about parameter ψ informed by both photographic and fecal DNA survey data.
Supplement 3. BUGS code for model 3: all parameters are completely survey-specific. Open
File List Supplement3.txt (md5: 5b2f80ccf13c7b7a0594a4981c6cecd8) Description The Supplement3.txt file is the BUGS code for Model 3 - All parameters are completely survey-specific.
Appendix A. Analysis of the Poisson Encounter Model. Open
Analysis of the Poisson Encounter Model.
Supplement 1. BUGS code for model 1: information about parameters ψ and σ informed by both photographic and fecal DNA survey data. Open
File List Supplement1.txt (md5: 1cfd8affa46236ffbb46ac8558751f26) Description The Supplement1.txt file is the BUGS code for Model 1 - Information about parameters ψ and σ informed by both photographic and fecal DNA survey data.