Estimating abundance
This chapter provides a non-technical overview of ‘closed population capture–recapture’ models, a class of well-established models that are widely applied in ecology, such as removal sampling, covariate models, and distance sampling. These methods are regularly adopted for studies of reptiles, in order to estimate abundance from counts of marked individuals while accounting for imperfect detection. Thus, the chapter describes some classic closed population models for estimating abundance, with considerations for some recent extensions that provide a spatial context for the estimation of abundance, and therefore density. Finally, the chapter suggests some software for use in data analysis, such as the Windows-based program MARK, and provides an example of estimating abundance and density of reptiles using an artificial cover object survey of Slow Worms (Anguis fragilis).
Citation Information
Publication Year | 2016 |
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Title | Estimating abundance |
DOI | 10.1093/acprof:oso/9780198726135.003.0027 |
Authors | Chris Sutherland, Andy Royle |
Publication Type | Book Chapter |
Publication Subtype | Book Chapter |
Index ID | 70196351 |
Record Source | USGS Publications Warehouse |
USGS Organization | Patuxent Wildlife Research Center |