IADIZA   20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Can we improve the Red List assessment with habitat suitability models?
Autor/es:
TOGNELLI, MF; RONDININI, C; CHIOZZA, F; BOITANI, L
Lugar:
Edmonton, Canada
Reunión:
Congreso; International Congress for Conservation Biology; 2010
Resumen:
The IUCN Red List of Threatened Species is the most comprehensive global assessment ofthe conservation status of species. During the assessments, species are assigned to one of aseries of categories of extinction risk by applying quantitative criteria based on populationsize, rate of decline, and area of distribution. The latter is usually based on estimations ofeither the extent of occurrence (EEO) or area of occupancy (AOO) of the species. However,maps of EEO usually overestimate species' true occurrence as it may contain unsuitable orunoccupied habitat. Habitat suitability models provide a good alternative to eliminate falsepresences and a better estimation of the current distribution of a species. Consequently, thismay have important implications for species listed in the Red List based solely on the area ofdistribution criterion as some species may meet the geographic range thresholds. Here, weuse deductive global mammal models and inductive local mammal models to compare themto the area thresholds used in the Red List. Given the widespread use of habitat suitabilitymodels in the last decade, they may become an important tool in the estimation of speciesdistribution for the assessment of their conservation status.