Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape
Abstract Body size is considered an important structuring mechanism of food webs because consumers are usually larger and more mobile than their prey and may couple energy among habitats. We explored the links among trophic position (TP), body size, and the coupling of different energy channels (phy...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-12-01
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| Series: | Limnology and Oceanography Letters |
| Online Access: | https://doi.org/10.1002/lol2.10212 |
| _version_ | 1818894403909976064 |
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| author | Friedrich W. Keppeler Jill A. Olin Paola C. López‐Duarte Michael J. Polito Linda M. Hooper‐Bùi Sabrina S. Taylor Nancy N. Rabalais F. Joel Fodrie Brian J. Roberts R. Eugene Turner Charles W. Martin Olaf P. Jensen |
| author_facet | Friedrich W. Keppeler Jill A. Olin Paola C. López‐Duarte Michael J. Polito Linda M. Hooper‐Bùi Sabrina S. Taylor Nancy N. Rabalais F. Joel Fodrie Brian J. Roberts R. Eugene Turner Charles W. Martin Olaf P. Jensen |
| author_sort | Friedrich W. Keppeler |
| collection | DOAJ |
| description | Abstract Body size is considered an important structuring mechanism of food webs because consumers are usually larger and more mobile than their prey and may couple energy among habitats. We explored the links among trophic position (TP), body size, and the coupling of different energy channels (phytoplankton and C4‐marsh plants) in a saltmarsh landscape in the northern Gulf of Mexico—a dynamic system considered weakly shaped by biotic interactions. Body size was positively associated with TP, and this relationship was stronger in the phytoplankton pathway vs. the C4‐marsh pathway. There was a gradual increase in the coupling of phytoplankton and C4‐marsh plants at larger body sizes and higher TP. Phytoplankton supported longer food chains and larger body sizes than C4‐marsh plants. Results support predictions of the landscape theory for food web architecture and indicate that the role of body size in determining trophic interactions may vary across food web compartments. |
| first_indexed | 2024-12-19T18:27:57Z |
| format | Article |
| id | doaj.art-dbd5477f71b243689916c866156938c1 |
| institution | Directory Open Access Journal |
| issn | 2378-2242 |
| language | English |
| last_indexed | 2024-12-19T18:27:57Z |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Limnology and Oceanography Letters |
| spelling | doaj.art-dbd5477f71b243689916c866156938c12022-12-21T20:10:48ZengWileyLimnology and Oceanography Letters2378-22422021-12-016636036810.1002/lol2.10212Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscapeFriedrich W. Keppeler0Jill A. Olin1Paola C. López‐Duarte2Michael J. Polito3Linda M. Hooper‐Bùi4Sabrina S. Taylor5Nancy N. Rabalais6F. Joel Fodrie7Brian J. Roberts8R. Eugene Turner9Charles W. Martin10Olaf P. Jensen11Center for Limnology University of Wisconsin–Madison Madison Wisconsin USAGreat Lakes Research Center Michigan Technological University Houghton Michigan USADepartment of Biological Sciences University of North Carolina at Charlotte Charlotte North Carolina USADepartment of Oceanography and Coastal Sciences Louisiana State University Baton Rouge Louisiana USADepartment of Environmental Sciences Louisiana State University Baton Rouge Louisiana USASchool of Renewable Natural Resources Louisiana State University and AgCenter Baton Rouge Louisiana USADepartment of Oceanography and Coastal Sciences Louisiana State University Baton Rouge Louisiana USAInstitute of Marine Sciences The University of North Carolina at Chapel Hill Chapel Hill North Carolina USALouisiana Universities Marine Consortium Chauvin Louisiana USADepartment of Oceanography and Coastal Sciences Louisiana State University Baton Rouge Louisiana USANature Coast Biological Station University of Florida Cedar Key Florida USACenter for Limnology University of Wisconsin–Madison Madison Wisconsin USAAbstract Body size is considered an important structuring mechanism of food webs because consumers are usually larger and more mobile than their prey and may couple energy among habitats. We explored the links among trophic position (TP), body size, and the coupling of different energy channels (phytoplankton and C4‐marsh plants) in a saltmarsh landscape in the northern Gulf of Mexico—a dynamic system considered weakly shaped by biotic interactions. Body size was positively associated with TP, and this relationship was stronger in the phytoplankton pathway vs. the C4‐marsh pathway. There was a gradual increase in the coupling of phytoplankton and C4‐marsh plants at larger body sizes and higher TP. Phytoplankton supported longer food chains and larger body sizes than C4‐marsh plants. Results support predictions of the landscape theory for food web architecture and indicate that the role of body size in determining trophic interactions may vary across food web compartments.https://doi.org/10.1002/lol2.10212 |
| spellingShingle | Friedrich W. Keppeler Jill A. Olin Paola C. López‐Duarte Michael J. Polito Linda M. Hooper‐Bùi Sabrina S. Taylor Nancy N. Rabalais F. Joel Fodrie Brian J. Roberts R. Eugene Turner Charles W. Martin Olaf P. Jensen Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape Limnology and Oceanography Letters |
| title | Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape |
| title_full | Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape |
| title_fullStr | Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape |
| title_full_unstemmed | Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape |
| title_short | Body size, trophic position, and the coupling of different energy pathways across a saltmarsh landscape |
| title_sort | body size trophic position and the coupling of different energy pathways across a saltmarsh landscape |
| url | https://doi.org/10.1002/lol2.10212 |
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