Integrating detection probabilities in species distribution models of amphibians breeding in Mediterranean temporary ponds

Détails

ID Serval
serval:BIB_8861EDC6F068
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Integrating detection probabilities in species distribution models of amphibians breeding in Mediterranean temporary ponds
Périodique
Diversity and Distributions
Auteur⸱e⸱s
Gómez-Rodríguez C., Bustamante J., Díaz-Paniagua C., Guisan A.
ISSN
1366-9516
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
18
Numéro
3
Pages
260-272
Langue
anglais
Résumé
Aim  The imperfect detection of species may lead to erroneous conclusions about species-environment relationships. Accuracy in species detection usually requires temporal replication at sampling sites, a time-consuming and costly monitoring scheme. Here, we applied a lower-cost alternative based on a double-sampling approach to incorporate the reliability of species detection into regression-based species distribution modelling.Location  Doñana National Park (south-western Spain).Methods  Using species-specific monthly detection probabilities, we estimated the detection reliability as the probability of having detected the species given the species-specific survey time. Such reliability estimates were used to account explicitly for data uncertainty by weighting each absence. We illustrated how this novel framework can be used to evaluate four competing hypotheses as to what constitutes primary environmental control of amphibian distribution: breeding habitat, aestivating habitat, spatial distribution of surrounding habitats and/or major ecosystems zonation. The study was conducted on six pond-breeding amphibian species during a 4-year period.Results  Non-detections should not be considered equivalent to real absences, as their reliability varied considerably. The occurrence of Hyla meridionalis and Triturus pygmaeus was related to a particular major ecosystem of the study area, where suitable habitat for these species seemed to be widely available. Characteristics of the breeding habitat (area and hydroperiod) were of high importance for the occurrence of Pelobates cultripes and Pleurodeles waltl. Terrestrial characteristics were the most important predictors of the occurrence of Discoglossus galganoi and Lissotriton boscai, along with spatial distribution of breeding habitats for the last species.Main conclusions  We did not find a single best supported hypothesis valid for all species, which stresses the importance of multiscale and multifactor approaches. More importantly, this study shows that estimating the reliability of non-detection records, an exercise that had been previously seen as a naïve goal in species distribution modelling, is feasible and could be promoted in future studies, at least in comparable systems.
Mots-clé
Absence reliability, data uncertainty, false absence, species detectability, temporary ponds
Web of science
Création de la notice
19/07/2011 1:21
Dernière modification de la notice
20/08/2019 15:47
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