Generalized spatial mark-resight models with incomplete identification: An application to red fox density estimates.

ABSTRACT: The estimation of abundance of wildlife populations is an essential part of ecological research and monitoring. Spatially explicit capture-recapture (SCR) models are widely used for abundance and density estimation, frequently through individual identification of target species using camera-trap sampling.Generalized spatial mark-resight (Gen-SMR) is a recently developed SCR extension that allows for abundance estimation when only a subset of the population is recognizable by artificial or natural marks. However, in many cases, it is not possible to read the marks in camera-trap pictures, even though individuals can be recognized as marked. We present a new extension of Gen-SMR that allows for this type of incomplete identification.We used simulation to assess how the number of marked indiv

SUBMITTER: Jimenez J 

PROVIDER: S-EPMC6476752 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature