Skip to main content
WCS
Menu
Library
Library Catalog
eJournals & eBooks
WCS Research
Archives
Research Use
Finding Aids
Digital Collections
WCS History
WCS Research
Research Publications
Science Data
Services for WCS Researchers
Archives Shop
Bronx Zoo
Department of Tropical Research
Browse By Product
About Us
FAQs
Intern or Volunteer
Staff
Donate
Search WCS.org
Search
search
Popular Search Terms
WCS History
Library and Archives
Library and Archives Menu
Library
Archives
WCS Research
Archives Shop
About Us
Donate
en
fr
Title
Generality of models that predict the distribution of species: Conservation activity and reduction of model transferability for a threatened bustard
Author(s)
Gray T.N.E., Borey R., Hout S.K., Chamnan H., Collar N.J., Dolman P.M.
Published
2009
Publisher
Conservation Biology
Published Version DOI
https://doi.org/10.1111/j.1523-1739.2008.01112.x
Abstract
Predictive models can help clarify the distribution of poorly known species but should display strong transferability when applied to independent data. Nevertheless, model transferability for threatened tropical species is poorly studied. We built models predicting the incidence of the critically endangered Bengal Florican (Houbaropsis bengalensis) within the Tonle Sap (TLS) floodplain, Cambodia. Separate models were constructed with soil, land-use, and landscape data and species incidence sampled over the entire floodplain (12,000 km 2) and from the Kompong Thom (KT) province (4000 km2). In each case, the probability of Bengal Florican presence within randomly selected 1 × 1 km squares was modeled by binary logistic regression with multimodel inference. We assessed the transferability of the KT model by comparing predictions with observed incidence elsewhere in the floodplain. In terms of standard model-validation statistics, the KT model showed good spatial transferability. Nevertheless, it overpredicted florican presence outside the KT calibration region, classifying 491 km2 as suitable habitat compared with 237 km2 predicted as suitable by the TLS model. This resulted from higher species incidence within the calibration region, probably owing to a program of conservation education and enforcement that has reduced persecution there. Because both research and conservation activity frequently focus on areas with higher density, such effects could be widespread, reducing transferability of predictive distribution models. © 2008 Society for Conservation Biology.
Keywords
conservation planning; conservation status; endangered species; environmental education; environmental research; floodplain; gamebird; geographical distribution; model validation; population modeling; regression analysis; animal; article; biological model; bird; Cambodia; demography; ecosystem; environmental protection; methodology; physiology; Animals; Birds; Cambodia; Conservation of Natural Resources; Demography; Ecosystem; Models, Biological; Asia; Cambodia; Eurasia; Southeast Asia; Tonle Sap Lake; Houbaropsis bengalensis
Access Full Text
A full-text copy of this article may be available. Please email the
WCS Library
to request.
Back
PUB10431