Differences in Characteristics of Reserve Network Selection Using Population Data Versus Habitat Surrogates |
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Authors: | Michael Altmoos Klaus Henle |
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Institution: | (1) Department of Conservation Biology, UFZ – Centre for Environmental Research Leipzig-Halle, Permoserstrasse 15, D-04318 Leipzig, Germany;(2) Brochonstrasse 9, D-55278 Weinolsheim, Germany |
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Abstract: | The use of species data versus environmental surrogates used in lieu of species data in systematic reserve site selection
is still highly debated. We analyse in a case study whether and how the results of reserve network selection are affected
by the use of species data versus habitat surrogates (habitat models) for qualitative (presence/absence) and quantitative
(population size/habitat quality) information. In a model region, the post-mining landscape south of Leipzig/Germany, we used
iterative algorithms to select a network for 29 animal target species from a basic set of 127 sites. The network results differ
markedly for the two information types: depending on the representation goal, 18–45% of the selected sites chosen in response
to one information type do not appear in the results for the other type. Given the availability of quantitative and hence
deeper information, evaluation rules can be used to filter out the best habitats and the largest populations. In our model
study, 0–40% less suitable areas were selected when instead of quantitative details only qualitative data were used. In view
of various advantages and limitations of the two information types, we propose improving the methodological approach to the
selection of networks for animal species by combining different information types. |
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Keywords: | Reserve network Selection methods Data type Iterative algorithm Biodiversity conservation Species conservation Habitat models Species abundance |
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