Choosing reserve sites probabilistically: a Colombian Amazon case study

L.A. Tole

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This study demonstrates a method for modelling species habitats and selecting reserves for their conservation. The method has a number of advantages: It makes use of well-known techniques, is straightforward to implement, does not require species absence data, produces georeferenced digital maps for visual analysis and geographical identification, and can be adapted to any scale of analysis or data resolution. Using existing presence data for the Colombian Amazon and standard linear optimization techniques, the study models landscape level probabilities of reptiles and amphibian habitats and then uses this probabilistic habitat data to prioritize reserves for their protection. The first stage of the study uses an ecological niche factor approach to produce a series of spatially explicit probabilistic habitat suitability maps. The second stage implements an objective function that chooses appropriate sites for protection according to the suitability of these modelled habitats to support focal reptiles and amphibians. On the assumption that more suitable habitats (expressed as a probability between 0 and 1) will contain more individual numbers of amphibians and reptiles than those that are unsuitable, any objective function used with this approach will implicitly choose sites that maximize the expected number of individual animals comprising a taxa. This is in contrast to many standard selection algorithms that focus directly on species occurrences, usually seeking to cover a representative taxa at least once somewhere on the landscape.
LanguageEnglish
Pages344-356
Number of pages12
JournalEcological Modelling
Volume194
Issue number4
DOIs
Publication statusPublished - 2006

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habitat
reptile
amphibian
visual analysis
digital map
species occurrence
animal
modeling
method

Keywords

  • colombia
  • conservation biology
  • amphibians
  • reptiles
  • suitability mapping
  • reserve prioritisation
  • ecological modelling

Cite this

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Choosing reserve sites probabilistically: a Colombian Amazon case study. / Tole, L.A.

In: Ecological Modelling, Vol. 194, No. 4, 2006, p. 344-356.

Research output: Contribution to journalArticle

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