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Estimating Rates of Local Extinction and Colonization in Colonial Species and an Extension to the Metapopulation and Community Levels by Christophe Barbraud; James D. Nichols; James E. Hines; Heinz Hafner is a Environmental Science article available to read on EtoBox.

What is Estimating Rates of Local Extinction and Colonization in Colonial Species and an Extension to the Metapopulation and Community Levels about?

Coloniality has mainly been studied from an evolutionary perspective, but relatively few studies have developed methods for modelling colony dynamics. Changes in number of colonies over time provide a useful tool for predicting and evaluating the responses of colonial species to management and to environmental disturbance. Probabilistic Markov process models have been recently used to estimate colony site dynamics using presence–absence data when all colonies are detected in sampling efforts. Here, we define and develop two general approaches for the modelling and analysis of colony dynamics for sampling situations in which all colonies are, and are not, detected. For both approaches, we develop a general probabilistic model for the data and then constrain model parameters based on various hypotheses about colony dynamics. We use Akaike's Information Criterion (AIC) to assess the adequacy of the constrained models. The models are parameterised with conditional probabilities of local colony site extinction and colonization. Presence–absence data arising from Pollock's robust capture–recapture design provide the basis for obtaining unbiased estimates of extinction, colonization, and

Who reads Estimating Rates of Local Extinction and Colonization in Colonial Species and an Extension to the Metapopulation and Community Levels?

Author

Christophe Barbraud; James D. Nichols; James E. Hines; Heinz Hafner

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; JSTOR (ISSN 0030-1299)

Published

2003

Language

EN

Field

Environmental Science (Physical Sciences)