Data from: Food-web structure varies along environmental gradients in a high-latitude marine ecosystem ...
Large-scale patterns in species diversity and community composition are associated with environmental gradients, but the implications of these patterns for food-web structure are still unclear. Here, we investigated how spatial patterns in food-web structure are associated with environmental gradien...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
Dryad
2018
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.k04q2kd https://datadryad.org/stash/dataset/doi:10.5061/dryad.k04q2kd |
| Summary: | Large-scale patterns in species diversity and community composition are associated with environmental gradients, but the implications of these patterns for food-web structure are still unclear. Here, we investigated how spatial patterns in food-web structure are associated with environmental gradients in the Barents Sea, a highly productive shelf sea of the Arctic Ocean. We compared food webs from 25 subregions in the Barents Sea and examined spatial correlations among food-web metrics, and between metrics and spatial variability in seawater temperature, bottom depth and number of days with ice cover. Several food-web metrics were positively associated with seawater temperature: connectance, level of omnivory, clustering, cannibalism, and high variability in generalism, while other food-web metrics such as modularity and vulnerability were positively associated with sea ice and negatively with temperature. Food-web metrics positively associated with habitat heterogeneity were: number of species, link ... : Barents Sea food websThe excel file contains 25 food webs of the Barents Sea. Sheet 1: Species names; Sheet 2. Subregion-by-species matrix; Sheet 3: Pairwise list of trophospecies interactions; Sheet 4: The Barents Sea metaweb. ... |
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