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E-scape: Consumer-specific landscapes of energetic resources derived from stable isotope analysis and remote sensing
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2021
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Source: Journal of Animal Ecology, 91(2), 381-390
[PDF-1.33 MB]
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Journal Title:Journal of Animal Ecology
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Description:Energetic resources and habitat distribution are inherently linked. Energetic resource availability is a major driver of the distribution of consumers, but estimating how much specific habitats contribute to the energetic resource needs of a consumer can be problematic. We present a new approach that combines remote sensing information and stable isotope ecology to produce maps of energetic resources (E-scapes). E-scapes project species-specific resource use information onto the landscape to classify areas based on energetic importance. Using our E-scapes, we investigated the relationship between energetic resource distribution and white shrimp distribution and how the scale used to generate the E-scape mediated this relationship. E-scapes successfully predicted the size, abundance, biomass, and total energy of a consumer in salt marsh habitats in coastal Louisiana, USA at scales relevant to the movement of the consumer. Our E-scape maps can be used alone or in combination with existing models to improve habitat management and restoration practices and have potential to be used to test fundamental movement theory.
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Source:Journal of Animal Ecology, 91(2), 381-390
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Rights Information:CC BY-NC-ND
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