Generalized spatial mark-resight models with an application to grizzly bears

摘要

1. The high cost associated with capture-recapture studies presents a major challenge when monitoring and managing wildlife populations. Recently developed spatial mark-resight (SMR) models were proposed as a cost-effective alternative because they only require a single marking event. However, existing SMR models ignore the marking process and make the tenuous assumption that marked and unmarked populations have the same encounter probabilities. This assumption will be violated in most situations because the marking process results in different spatial distributions of marked and unmarked animals.