The 'robust' capture-recapture design allows components of recruitment to be estimated

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Edited by:
J.-D. Lebreton and P.M. North


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The 'robust' capture-recapture design (Pollock 1982) allows analyses which combine features of closed population model analyses (Otis et aI., 1978, White et aI., 1982) and open population model analyses (Pollock et aI., 1990). Estimators obtained under these analyses are more robust to unequal catch ability than traditional Jolly-Seber estimators (Pollock, 1982; Pollock et al., 1990; Kendall, 1992). The robust design also allows estimation of parameters for population size, survival rate and recruitment numbers for all periods of the study unlike under Jolly-Seber type models. The major advantage of this design that we emphasize in this short review paper is that it allows separate estimation of immigration and in situ recruitment numbers for a two or more age class model (Nichols and Pollock, 1990). This is contrasted with the age-dependent Jolly-Seber model (Pollock, 1981; Stokes, 1984; Pollock et L, 1990) which provides separate estimates for immigration and in situ recruitment for all but the first two age classes where there is at least a three age class model. The ability to achieve this separation of recruitment components can be very important to population modelers and wildlife managers as many species can only be separated into two easily identified age classes in the field.

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Publication type:
Book chapter
Publication Subtype:
Book Chapter
The 'robust' capture-recapture design allows components of recruitment to be estimated
Year Published:
Birkhauser Verlag
Publisher location:
Basel, Switzerland and Boston
Contributing office(s):
Patuxent Wildlife Research Center
xviii, 397
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Larger Work Subtype:
Other Government Series
Larger Work Title:
Marked Individuals in the Study of Bird Population
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