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|標題:||Consistent estimation of species abundance from a presence-absence map||作者:||Muller, C.H.
|關鍵字:||Presence absence map;Consistency;Gamma-Poisson model;non-linear regression||Project:||Statistics & Probability Letters||期刊/報告no：:||Statistics & Probability Letters, Volume 81, Issue 9, Page(s) 1449-1457.||摘要:||
The estimation of the abundance of a species using the presence or absence of the species over a grid of cells simplifies data collection but the resulting statistical analysis is challenging. Several estimators have been proposed but their properties are unknown. Here we consider a generalized gamma-Poisson model which allows dependencies across the grid and develop a new estimator for this model. It is shown that this estimator is consistent, allowing us to conclude that it is indeed possible to estimate abundance from presence-absence maps. (C) 2011 Elsevier B.V. All rights reserved.
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