Estimation of Demographic Parameters from Live-Encounter Data: a Summary Review
In: Journal of Wildlife Management, Jg. 70 (2006-12-01), S. 1504-1520
Online
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Zugriff:
Estimation of demographic parameters is central to research questions in wildlife management, conservation, and evolutionary ecology. I review the 7 major classes of mark–recapture models that investigators can use to estimate apparent survival and other parameters from live-encounter data. Return rates are the product of 4 probabilities: true survival (S), site fidelity (F), site propensity (δ), and true detection (p*). Cormack-Jolly-Seber (CJS) models improve upon return rates by separating apparent survival (ϕ = S × F) from the probability of encounter (p = δ × p*). The main drawback to mark–recapture models based on live-encounter data is that the complement of apparent survival (1 − ϕ) includes losses to mortality and to permanent emigration, and these 2 ecological processes are difficult to disentangle. Advanced mark–recapture models require additional sampling effort but estimate apparent survival with greater precision and less bias, and they also offer estimates of other useful demograph...
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Estimation of Demographic Parameters from Live-Encounter Data: a Summary Review
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Autor/in / Beteiligte Person: | Sandercock, Brett K. |
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Zeitschrift: | Journal of Wildlife Management, Jg. 70 (2006-12-01), S. 1504-1520 |
Veröffentlichung: | Wiley, 2006 |
Medientyp: | unknown |
ISSN: | 1937-2817 (print) ; 0022-541X (print) |
DOI: | 10.2193/0022-541x(2006)70[1504:eodpfl]2.0.co;2 |
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