The role of herbivory in structuring tropical seagrass ecosystem service delivery

Scott, Abigail L., York, Paul H., Duncan, Clare, Macreadie, Peter I., Connolly, Rod M., Ellis, Megan T., Jarvis, Jessie C., Jinks, Kristin I., Marsh, Helene and Rasheed, Michael A. 2018, The role of herbivory in structuring tropical seagrass ecosystem service delivery, Frontiers in plant science, vol. 9, pp. 1-10, doi: 10.3389/fpls.2018.00127.

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Title The role of herbivory in structuring tropical seagrass ecosystem service delivery
Author(s) Scott, Abigail L.
York, Paul H.
Duncan, ClareORCID iD for Duncan, Clare
Macreadie, Peter I.ORCID iD for Macreadie, Peter I.
Connolly, Rod M.
Ellis, Megan T.
Jarvis, Jessie C.
Jinks, Kristin I.
Marsh, Helene
Rasheed, Michael A.
Journal name Frontiers in plant science
Volume number 9
Article ID 127
Start page 1
End page 10
Total pages 10
Publisher Frontiers Media
Place of publication Lausanne, Switzerland
Publication date 2018
ISSN 1664-462X
Keyword(s) dugong
ecosystem services
Science & Technology
Life Sciences & Biomedicine
Plant Sciences
Summary Seagrass meadows support key ecosystem services, via provision of food directly for herbivores, and indirectly to their predators. The importance of herbivores in seagrass meadows has been well-documented, but the links between food webs and ecosystem services in seagrass meadows have not previously been made explicit. Herbivores interact with ecosystem services - including carbon sequestration, cultural values, and coastal protection. Interactions can be positive or negative and depend on a range of factors including the herbivore identity and the grazing type and intensity. There can be unintended consequences from management actions based on a poor understanding of trade-offs that occur with complex seagrass-herbivore interactions. Tropical seagrass meadows support a diversity of grazers spanning the meso-, macro-, and megaherbivore scales. We present a conceptual model to describe how multiple ecosystem services are influenced by herbivore pressure in tropical seagrass meadows. Our model suggests that a balanced ecosystem, incorporating both seagrass and herbivore diversity, is likely to sustain the broadest range of ecosystem services. Our framework suggests the pathway to achieve desired ecosystem services outcomes requires knowledge on four key areas: (1) how size classes of herbivores interact to structure seagrass; (2) desired community and management values; (3) seagrass responses to top-down and bottom-up controls; (4) the pathway from intermediate to final ecosystem services and human benefits. We suggest research should be directed to these areas. Herbivory is a major structuring influence in tropical seagrass systems and needs to be considered for effective management of these critical habitats and their services.
Language eng
DOI 10.3389/fpls.2018.00127
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID LP160100492
Copyright notice ©2018, The Author(s)
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Document type: Journal Article
Collection: School of Life and Environmental Sciences
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