Advertisement
Published in:
2009 | OriginalPaper | Chapter
Mark-Recapture Jolly-Seber Abundance Estimation with Classification Uncertainty
Authors : Wendell O. Challenger, Carl J. Schwarz
Published in: Modeling Demographic Processes In Marked Populations
Publisher: Springer US
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
Wildlife managers and ecologists are often interested in estimating abundance of animals belonging to a certain fixed group (e.g. sex), but in some cases group membership cannot always be ascertained. Group assignment uncertainties can occur either through the inability to assign group membership because of a lack of group-specific characteristics (e.g. males and females look alike), lack of training (e.g. volunteers), or through errors in assignment. Recently, methodological advances in closed population capture-recapture models have allowed for the inclusion of classification uncertainties in parameter estimates. We build on this work by addressing identification uncertainty in abundance estimation (open population models), providing a general method for dealing with multiple groups/states when the true underlying group/state can be considered fixed for the duration of the experiment. We then apply this methodology to estimate the sex-specific abundances of walleyes (Stizostedion vitreum) in Mille Lacs, Minnesota.