The Effect on Model Identifiability of Allowing Different Relocation Rates for Live and Dead Animals in the Combined Analysis of Telemetry and Recapture Data

摘要: Models are described for the joint analysis of live-trapping and radio telemetry data from a study on black bears (Ursus americanus) in which all animals received ear tags subset also tags. Concerns about bias survival estimates led to investigation identifiability estimator precision series models that allowed differenttelemetry relocation rates living dead animals, addition emigration seasonal variation survival. Identifiability was determined by showing expected information matrix nonsingular. with fidelity constant across time, same degree time specificity were be nonidentifiable. More general models, greater rates, near-singular, estimators under these near-singular had poor precision. Analysis illustrated have when estimated separately live animals. It is recommended effort expended relocate both consistently high each survey, so will mortality status.