NDLI: Models of presence–absence estimate abundance as well as (or even better than) models of abundance: the case of the butterfly Parnassius apollo

Content Provider	Springer Nature Link
Author	Gutiérrez, David Harcourt, Jennifer Díez, Sonia B. Gutiérrez Illán, Javier Wilson, Robert J.
Copyright Year	2013
Abstract	Models relating species distribution records to environmental variables are increasingly applied to biodiversity conservation. Such techniques could be valuable to predict the distribution, abundance or habitat requirements of species that are rare or otherwise difficult to survey. However, despite widely-documented positive intraspecific relationships between occupancy and abundance, few studies have demonstrated convincing associations between models of habitat suitability based on species occurrence, and observed measures of habitat quality such as abundance. Here we compared models based on field-derived abundance and distribution (presence–absence) data for a rare mountain butterfly in 2006–2008. Both model types selected consistent effects of environmental variables, which corresponded to known ecological associations of the species, suggesting that abundance and distribution may be a function of similar factors. However, the models based on occurrence data identified stronger effects of a smaller number of environmental variables, indicating less uncertainty in the factors controlling distribution. Furthermore, cross-validation of the models using observed abundance data from different years, or averaged across years, suggested a marginally stronger ability of models based on occurrence data to predict observed abundance. The results suggest that, for some species, distribution models could be efficient tools for estimating habitat quality in conservation planning or management, when information on abundance or habitat requirements is costly or impractical to obtain.
Starting Page	401
Ending Page	413
Page Count	13
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	28
Issue Number	3
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-01-12
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Apollo butterfly Conservation planning Distribution GLM Iberian Peninsula Information-theoretic approach Lepidoptera Mountains Landscape Ecology Plant Ecology Forestry Management Forestry Ecology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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