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dc.contributor.authorP. Benstead, Jonathan
dc.contributor.authorG. March, James
dc.contributor.authorFry, Brian
dc.contributor.authorC. Ewel, Katherine
dc.contributor.authorM. Pringle, Catherine
dc.date.accessioned2017-05-03T14:56:36Z
dc.date.available2017-05-03T14:56:36Z
dc.date.issued2006
dc.date.modified2014-04-09T22:10:34Z
dc.identifier.issn1939-9170
dc.identifier.doi10.1890/05-0721
dc.identifier.urihttp://hdl.handle.net/10072/58090
dc.description.abstractWe sampled consumers and organic matter sources (mangrove litter, freshwater swamp-forest litter, seagrasses, seagrass epiphytes, and marine particulate organic matter [MPOM]) from four estuaries on Kosrae, Federated States of Micronesia for stable isotope ( and ) analysis. Unique mixing solutions cannot be calculated in a dual-isotope, five-endmember scenario, so we tested IsoSource, a recently developed statistical procedure that calculates ranges in source contributions (i.e., minimum and maximum possible). Relatively high minimum contributions indicate significant sources, while low maxima indicate otherwise. Litter from the two forest types was isotopically distinguishable but had low average minimum contributions (0-8% for mangrove litter and 0% for swamp-forest litter among estuaries). Minimum contribution of MPOM was also low, averaging 0-13% among estuaries. Instead, local marine sources dominated contributions to consumers. Minimum contributions of seagrasses averaged 8-47% among estuaries (range 0-88% among species). Minimum contributions of seagrass epiphytes averaged 5-27% among estuaries (range 0-69% among species). IsoSource enabled inclusion of five organic matter sources in our dual-isotope analysis, ranking trophic importance as follows: seagrasses &gt seagrass epiphytes &gt MPOM &gt mangrove forest &gt freshwater swamp-forest. IsoSource is thus a useful step toward understanding which of multiple organic matter sources support food webs; more detailed work is necessary to identify unique solutions.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1715155 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherJohn Wiley & Sons
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom326
dc.relation.ispartofpageto333
dc.relation.ispartofissue2
dc.relation.ispartofjournalEcology
dc.relation.ispartofvolume87
dc.rights.retentionY
dc.subject.fieldofresearchEcology not elsewhere classified
dc.subject.fieldofresearchEcological Applications
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEvolutionary Biology
dc.subject.fieldofresearchcode060299
dc.subject.fieldofresearchcode0501
dc.subject.fieldofresearchcode0602
dc.subject.fieldofresearchcode0603
dc.titleTesting Isosource: Stable Isotope Analysis of a Tropical Fishery with Diverse Organic Matter Sources
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2006 Ecological Society of America. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2006
gro.hasfulltextFull Text
gro.griffith.authorFry, Brian D.


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