作者
Jian DL Yen, James R Thomson, Peter A Vesk, Ralph Mac Nally
发表日期
2011/12
期刊
Ecography
卷号
34
期号
6
页码范围
946-954
出版商
Blackwell Publishing Ltd
简介
We sought to identify those in‐site habitat characteristics that best predict distributions of woodland birds in the box–ironbark region of central Victoria, Australia. Our focus was on comparing and melding outcomes from several forms of ensemble modelling methods, which account for uncertainty in model structure and allow assessments of variable importance. We used boosted regression trees (BRT), Bayesian additive regression trees (BART) and random forests (RF) to model bird occurrences for 47 species using 43 predictor variables measured at 184 2‐ha sites. The majority of predictor variables were in‐site habitat variables, but vegetation cover in the surrounding landscape (500 m radius) and geographic coordinates were included to account for known effects of habitat fragmentation and of geographic clines. A consensus model also was developed, built from averaged predictions from the three …
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