| Abstract: | Pradel‘s (1996) temporal symmetry model permitting direct estimation and modelling of population growth rate, lambda sub i provides a potentially useful tool for the study of population dynamics using marked animals. Because of its recent publication date, the approach has not seen much use, and there have been virtually no investigations directed at robustness of the resulting estimators. Here we consider several potential sources of bias, all motivated by specific uses of this estimation approach. We consider sampling situations in which the study area expands with time and present an analytic expression for the bias in lambda hat sub i. We next consider trap response in capture probabilities and heterogeneous capture probabilities and compute large-sample and simulation-based approximations of resulting bias in lambda hat sub i. These approximations indicate that trap response is an especially important assumption violation that can produce substantial bias. Finally, we consider losses on capture and emphasize the importance of selecting the estimator for lambda sub i that is appropriate to the question being addressed. For studies based on only sighting and resighting data, Pradel‘s (1996) lambda hat prime sub i is the appropriate estimator. |
| Genre: | Book chapter |
| ProdID: | 5211162 |
| Citation Author: | Hines, J.E.; Nichols, J.D. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 587 |
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| Citation Language: | English |
| Citation Larger Work Title: | Statistical analysis of data from marked bird populations |
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| Citation Number Of Pages: | 669 |
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| Citation Phsyical Description: | 669 |
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| Citation Public Comments: | EURING 2000 Conference, Point Reyes, California, October 1-7. PDF on file: 5829_Hines.pdf |
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| Citation Series: | Journal of Applied Statistics |
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| Citation Search Results Text: | Investigations of potential bias in the estimation of lambda using Pradel‘s (1996) model for capture-recapture data; 2002; Book chapter; Statistical analysis of data from marked bird populations; Hines, J.E.; Nichols, J.D. |
| Citation Start Page: | 573 |
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| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Investigations of potential bias in the estimation of lambda using Pradel‘s (1996) model for capture-recapture data; 2002; Book chapter; Statistical analysis of data from marked bird populations; Hines, J.E.; Nichols, J.D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 9 Jun 2009 09:23 -0500 |
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