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Defining and Evaluating the Umbrella Species Concept for Conserving and Restoring Landscape Connectivity
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Defining and Evaluating the Umbrella Species Concept for Conserving and Restoring Landscape Connectivity
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Journal Article
Defining and Evaluating the Umbrella Species Concept for Conserving and Restoring Landscape Connectivity
2014
Overview
Conserving or restoring landscape connectivity between patches of breeding habitat is a common strategy to protect threatened species from habitat fragmentation. By managing connectivity for some species, usually charismatic vertebrates, it is often assumed that these species will serve as conservation umbrellas for other species. We tested this assumption by developing a quantitative method to measure overlap in dispersal habitat of 3 threatened species—a bird (the umbrella), a butterfly, and a frog—inhabiting the same fragmented landscape. Dispersal habitat was determined with Circuitscape, which was parameterized with movement data collected for each species. Despite differences in natural history and breeding habitat, we found substantial overlap in the spatial distributions of areas important for dispersal of this suite of taxa. However, the intuitive umbrella species (the bird) did not have the highest overlap with other species in terms of the areas that supported connectivity. Nevertheless, we contend that when there are no irreconcilable differences between the dispersal habitats of species that cohabitate on the landscape, managing for umbrella species can help conserve or restore connectivity simultaneously for multiple threatened species with different habitat requirements. Conservar o restaurar la conectividad de paisajes entre fragmentos de hábitats de reproducción es una estrategia común para proteger a las especies amenazadas de la fragmentación de hábitat. Al manejar la conectividad para algunas especies, generalmente vertebrados carismáticos, se asume comúnmente que estas especies servirán como paraguas de conservación para otras especies. Probamos esta suposición desarrollando un método cuantitativo para medir el traslape en la dispersión de hábitat de tres especies amenazadas que habitan en el mismo paisaje fragmentado: un ave (el paraguas), una mariposa y una rana. La dispersión de hábitat se determinó con Circuitscape, al cual se le establecieron parámetros con movimientos de datos colectados para cada especie. Pese a las diferencias en la historia natural y el hábitat de reproducción, encontramos un traslape sustancial en las distribuciones espaciales de áreas importantes para la dispersión de este conjunto de taxones. Sin embargo, la especie paraguas intuitiva (el ave) no tuvo el traslape mayor con otras especies en términos de áreas que apoyen la conectividad. A pesar de todo, sostenemos que cuando no hay diferencias irreconciliables entre la dispersión de hábitats de las especies que cohabitan en el paisaje, manejar todo para la especie paraguas puede ayudar a conservar o restaurar simultáneamente la conectividad para múltiples especies amenazadas con requerimientos de hábitat diferentes.
Publisher
Blackwell Publishing Ltd,Wiley Periodicals Inc,Wiley-Blackwell
Subject
/ Animal, plant and microbial ecology
/ Animals
/ Biological and medical sciences
/ Birds
/ Conservation of Natural Resources - methods
/ Conservation, protection and management of environment and wildlife
/ corredor
/ corridor
/ Forests
/ Frogs
/ Fundamental and applied biological sciences. Psychology
/ Habitats
/ Methods and techniques (sampling, tagging, trapping, modelling...)
/ modelado
/ modeling
/ Parks, reserves, wildlife conservation. Endangered species: population survey and restocking
