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On the use of secondary capture-recapture samples to estimate temporary emigration and breeding proportions

OCLC 34316323; 'Full title': State-of-the-art data analysis for studies of marked birds.
By:
and
Edited by:
P.M. North and J.D. Nichols

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Abstract

The use of the Cormack- Jolly-Seber model under a standard sampling scheme of one sample per time period, when the Jolly-Seber assumption that all emigration is permanent does not hold, leads to the confounding of temporary emigration probabilities with capture probabilities. This biases the estimates of capture probability when temporary emigration is a completely random process, and both capture and survival probabilities when there is a temporary trap response in temporary emigration, or it is Markovian. The use of secondary capture samples over a shorter interval within each period, during which the population is assumed to be closed (Pollock's robust design), provides a second source of information on capture probabilities. This solves the confounding problem, and thus temporary emigration probabilities can be estimated. This process can be accomplished in an ad hoc fashion for completely random temporary emigration and to some extent in the temporary trap response case, but modelling the complete sampling process provides more flexibility and permits direct estimation of variances. For the case of Markovian temporary emigration, a full likelihood is required.

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
On the use of secondary capture-recapture samples to estimate temporary emigration and breeding proportions
Year Published:
1995
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
553-1081
Larger Work Type:
Book
Larger Work Subtype:
Other Government Series
Larger Work Title:
Statistics and ornithology. Proceedings of the 4th EURING technical meeting, 19-24 September, 1994
First page:
751
Last page:
762