Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences
We analyze recently collected feather tissues from two species of seabirds, the sooty tern (Onychoprion fuscatus) and brown noddy (Anous stolidus), in three ocean regions (North Atlantic, North Pacific, and South Pacific) with different human impacts. The species are similar morphologically and in t...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2018-09-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fmars.2018.00317/full |
| _version_ | 1819074755270017024 |
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| author | Tyler O. Gagné K. David Hyrenbach Molly E. Hagemann Oron L. Bass Stuart L. Pimm Mark MacDonald Brian Peck Kyle S. Van Houtan Kyle S. Van Houtan |
| author_facet | Tyler O. Gagné K. David Hyrenbach Molly E. Hagemann Oron L. Bass Stuart L. Pimm Mark MacDonald Brian Peck Kyle S. Van Houtan Kyle S. Van Houtan |
| author_sort | Tyler O. Gagné |
| collection | DOAJ |
| description | We analyze recently collected feather tissues from two species of seabirds, the sooty tern (Onychoprion fuscatus) and brown noddy (Anous stolidus), in three ocean regions (North Atlantic, North Pacific, and South Pacific) with different human impacts. The species are similar morphologically and in the trophic levels from which they feed within each location. In contrast, we detect reliable differences in trophic position amongst the regions. Trophic position appears to decline as the intensity of commercial fishing increases, and is at its lowest in the Caribbean. The spatial gradient in trophic position we document in these regions exceeds those detected over specimens from the last 130 years in the Hawaiian Islands. Modeling suggests that climate velocity and human impacts on fish populations strongly align with these differences. |
| first_indexed | 2024-12-21T18:14:33Z |
| format | Article |
| id | doaj.art-ed800dbbe44346e08dfe494182611038 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-21T18:14:33Z |
| publishDate | 2018-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-ed800dbbe44346e08dfe4941826110382022-12-21T18:54:42ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452018-09-01510.3389/fmars.2018.00317397546Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem DifferencesTyler O. Gagné0K. David Hyrenbach1Molly E. Hagemann2Oron L. Bass3Stuart L. Pimm4Mark MacDonald5Brian Peck6Kyle S. Van Houtan7Kyle S. Van Houtan8Conservation and Research Department, Monterey Bay Aquarium, Monterey, CA, United StatesDepartment of Natural Science, Marine Science Programs at Oceanic Institute, Hawaii Pacific University, Honolulu, HI, United StatesVertebrate Zoology Collections, Bernice Pauahi Bishop Museum, Honolulu, HI, United StatesSouth Florida Natural Resources Center, Everglades National Park, Homestead, FL, United StatesNicholas School of the Environment, Duke University, Durham, NC, United StatesDepartment of Marine and Wildlife Resources, Pago Pago, AS, United StatesRose Atoll Marine National Monument, United States Fish and Wildlife Service, Pago Pago, AS, United StatesConservation and Research Department, Monterey Bay Aquarium, Monterey, CA, United StatesNicholas School of the Environment, Duke University, Durham, NC, United StatesWe analyze recently collected feather tissues from two species of seabirds, the sooty tern (Onychoprion fuscatus) and brown noddy (Anous stolidus), in three ocean regions (North Atlantic, North Pacific, and South Pacific) with different human impacts. The species are similar morphologically and in the trophic levels from which they feed within each location. In contrast, we detect reliable differences in trophic position amongst the regions. Trophic position appears to decline as the intensity of commercial fishing increases, and is at its lowest in the Caribbean. The spatial gradient in trophic position we document in these regions exceeds those detected over specimens from the last 130 years in the Hawaiian Islands. Modeling suggests that climate velocity and human impacts on fish populations strongly align with these differences.https://www.frontiersin.org/article/10.3389/fmars.2018.00317/fulltrophic ecologycommercial fisheriesocean memoryglobal changemachine learningstable isotopes |
| spellingShingle | Tyler O. Gagné K. David Hyrenbach Molly E. Hagemann Oron L. Bass Stuart L. Pimm Mark MacDonald Brian Peck Kyle S. Van Houtan Kyle S. Van Houtan Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences Frontiers in Marine Science trophic ecology commercial fisheries ocean memory global change machine learning stable isotopes |
| title | Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences |
| title_full | Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences |
| title_fullStr | Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences |
| title_full_unstemmed | Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences |
| title_short | Seabird Trophic Position Across Three Ocean Regions Tracks Ecosystem Differences |
| title_sort | seabird trophic position across three ocean regions tracks ecosystem differences |
| topic | trophic ecology commercial fisheries ocean memory global change machine learning stable isotopes |
| url | https://www.frontiersin.org/article/10.3389/fmars.2018.00317/full |
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