Data from: A synthesis of diets and trophic overlap of marine species in the California current
A key step toward ecosystem-based management is to better understand how interactions within food webs affect species of commercial and conservation importance. Here we provide comprehensive diet information and food web analysis for major taxa within the California Current ecosystem, including fish...
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Online Access: | https://dx.doi.org/10.5061/dryad.412nn http://datadryad.org/stash/dataset/doi:10.5061/dryad.412nn |
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ftdatacite:10.5061/dryad.412nn 2023-05-15T15:37:15+02:00 Data from: A synthesis of diets and trophic overlap of marine species in the California current Wippel, Bryanda Dufault, Aaron M. Marshall, Kristin Kaplan, Isaac C. 2017 https://dx.doi.org/10.5061/dryad.412nn http://datadryad.org/stash/dataset/doi:10.5061/dryad.412nn en eng Dryad Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 CC0 marine animal diets Marine mammals consumption Invertebrates dataset Dataset 2017 ftdatacite https://doi.org/10.5061/dryad.412nn 2022-02-08T12:53:43Z A key step toward ecosystem-based management is to better understand how interactions within food webs affect species of commercial and conservation importance. Here we provide comprehensive diet information and food web analysis for major taxa within the California Current ecosystem, including fish, marine mammals, birds, and invertebrates. We synthesized 75 published diet studies from this ecosystem and calculated representative diets for each species or aggregated functional group. We assessed diet relatedness using hierarchical cluster analysis and calculated diet overlaps based on percent similarity index (PSI). Both analyses were performed on functional group data and also separately for each vertebrate species. Cluster analysis identified distinct feeding guilds and revealed both intuitive and novel diet similarities between several species and functional groups. One intuitive example is that functional groups preying on euphausiids, a key forage species in the California Current, show a high amount of overlap. A novel example is the significant diet overlap of shallow small rockfish and baleen whales (e.g., grey whales [Eschrichtius robustus]), both of which consume large amounts of benthic invertebrates. Functional groups were highly significant in explaining the PSI differences between species, which suggests that key ecological interactions will be preserved in ecosystem models that use these functional groups. A visual representation of the complete food web and calculation of food web statistics suggest that there are strong similarities between the food webs of the California Current and the Benguela Current, a similar upwelling-driven eastern boundary current off the southwest coast of Africa. : DietsOfPredatorsThatAreJuvenilesDiets of California Current marine animals (West Coast of US, parts of Canada and Mexico) for predators that are juveniles.DietsOfPredatorsThatAreAdultsOrLackAgeStructureDiets of California Current (West Coast of US, parts of Canada and Mexico) for predators that are either Adults or invertebrates that lack age structure.DietMatrixWippelUpdated_CaliforniaCurrentDietMatrixWippelUpdated_CaliforniaCurrent.xlsx This is a Microsoft Excel 2016 spreadsheet. This is the complete collection of diet information. See NOTES page and the full README file. Dataset baleen whales DataCite Metadata Store (German National Library of Science and Technology) Canada Psi ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
marine animal diets Marine mammals consumption Invertebrates |
spellingShingle |
marine animal diets Marine mammals consumption Invertebrates Wippel, Bryanda Dufault, Aaron M. Marshall, Kristin Kaplan, Isaac C. Data from: A synthesis of diets and trophic overlap of marine species in the California current |
topic_facet |
marine animal diets Marine mammals consumption Invertebrates |
description |
A key step toward ecosystem-based management is to better understand how interactions within food webs affect species of commercial and conservation importance. Here we provide comprehensive diet information and food web analysis for major taxa within the California Current ecosystem, including fish, marine mammals, birds, and invertebrates. We synthesized 75 published diet studies from this ecosystem and calculated representative diets for each species or aggregated functional group. We assessed diet relatedness using hierarchical cluster analysis and calculated diet overlaps based on percent similarity index (PSI). Both analyses were performed on functional group data and also separately for each vertebrate species. Cluster analysis identified distinct feeding guilds and revealed both intuitive and novel diet similarities between several species and functional groups. One intuitive example is that functional groups preying on euphausiids, a key forage species in the California Current, show a high amount of overlap. A novel example is the significant diet overlap of shallow small rockfish and baleen whales (e.g., grey whales [Eschrichtius robustus]), both of which consume large amounts of benthic invertebrates. Functional groups were highly significant in explaining the PSI differences between species, which suggests that key ecological interactions will be preserved in ecosystem models that use these functional groups. A visual representation of the complete food web and calculation of food web statistics suggest that there are strong similarities between the food webs of the California Current and the Benguela Current, a similar upwelling-driven eastern boundary current off the southwest coast of Africa. : DietsOfPredatorsThatAreJuvenilesDiets of California Current marine animals (West Coast of US, parts of Canada and Mexico) for predators that are juveniles.DietsOfPredatorsThatAreAdultsOrLackAgeStructureDiets of California Current (West Coast of US, parts of Canada and Mexico) for predators that are either Adults or invertebrates that lack age structure.DietMatrixWippelUpdated_CaliforniaCurrentDietMatrixWippelUpdated_CaliforniaCurrent.xlsx This is a Microsoft Excel 2016 spreadsheet. This is the complete collection of diet information. See NOTES page and the full README file. |
format |
Dataset |
author |
Wippel, Bryanda Dufault, Aaron M. Marshall, Kristin Kaplan, Isaac C. |
author_facet |
Wippel, Bryanda Dufault, Aaron M. Marshall, Kristin Kaplan, Isaac C. |
author_sort |
Wippel, Bryanda |
title |
Data from: A synthesis of diets and trophic overlap of marine species in the California current |
title_short |
Data from: A synthesis of diets and trophic overlap of marine species in the California current |
title_full |
Data from: A synthesis of diets and trophic overlap of marine species in the California current |
title_fullStr |
Data from: A synthesis of diets and trophic overlap of marine species in the California current |
title_full_unstemmed |
Data from: A synthesis of diets and trophic overlap of marine species in the California current |
title_sort |
data from: a synthesis of diets and trophic overlap of marine species in the california current |
publisher |
Dryad |
publishDate |
2017 |
url |
https://dx.doi.org/10.5061/dryad.412nn http://datadryad.org/stash/dataset/doi:10.5061/dryad.412nn |
long_lat |
ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Canada Psi |
geographic_facet |
Canada Psi |
genre |
baleen whales |
genre_facet |
baleen whales |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5061/dryad.412nn |
_version_ |
1766367715292872704 |