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- W2014379480 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 399:253-259 (2010) - DOI: https://doi.org/10.3354/meps08331 Fiddler crab control of cordgrass primary production in sandy sediments Christine Holdredge*, Mark D. Bertness, Nicholas C. Herrmann, Keryn B. Gedan Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island 02912, USA *Email: choldredge@ufl.edu ABSTRACT: The cordgrass Spartina alterniflora Loisel is a foundation species critical to the establishment and maintenance of western Atlantic salt marshes. Although the factors regulating cordgrass growth along sheltered, fine-sediment shorelines have been exhaustively studied, less is known about the mechanisms that maintain cordgrass production in high-energy marshes characterized by sandy substrates. We investigated whether deposit-feeding fiddler crabs Uca pugilator Bosc and U. pugnax Smith can mediate local physical conditions and nutrient availability and stimulate cordgrass primary production on sandy marsh sediments. We experimentally removed fiddler crabs from 3 × 3 m plots in an exposed, sandy marsh in Wellfleet, Massachusetts, USA, and found that above- and belowground cordgrass biomass decreased by >53% and 50%, respectively, and above- and belowground nitrogen in cordgrass (g N m–2) decreased by >47% and 45% in fiddler crab removal plots compared to controls. Fiddler crab removal did not measurably influence sediment edaphic parameters, such as redox potential or waterlogging, suggesting that fiddler crabs enhance cordgrass productivity through nutrient deposition on sandy sediments and thus may be a critical component in the successful establishment and maintenance of salt marshes that develop along high-energy shores. KEY WORDS: High energy marsh · Positive interactions · Nutrient deposition · Nutrient limitation · Spartina alterniflora · Uca pugilator · Uca pugnax Full text in pdf format Supplementary material PreviousNextCite this article as: Holdredge C, Bertness MD, Herrmann NC, Gedan KB (2010) Fiddler crab control of cordgrass primary production in sandy sediments. Mar Ecol Prog Ser 399:253-259. https://doi.org/10.3354/meps08331Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 399. Online publication date: January 28, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
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- W2014379480 title "Fiddler crab control of cordgrass primary production in sandy sediments" @default.
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