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dc.contributor.authorSchlacher, Thomas A
dc.contributor.authorCarracher, Lucy K
dc.contributor.authorPorch, Nicholas
dc.contributor.authorConnolly, Rod M
dc.contributor.authorOlds, Andrew D
dc.contributor.authorGilby, Ben L
dc.contributor.authorEkanayake, Kasun B
dc.contributor.authorMaslo, Brooke
dc.contributor.authorWeston, Michael A
dc.date.accessioned2018-01-19T06:18:51Z
dc.date.available2018-01-19T06:18:51Z
dc.date.issued2016
dc.identifier.issn1932-6203
dc.identifier.doi10.1371/journal.pone.0161905
dc.identifier.urihttp://hdl.handle.net/10072/100507
dc.description.abstractMany species of birds breeding on ocean beaches and in coastal dunes are of global conservation concern. Most of these species rely on invertebrates (e.g. insects, small crustaceans) as an irreplaceable food source, foraging primarily around the strandline on the upper beach near the dunes. Sandy beaches are also prime sites for human recreation, which impacts these food resources via negative trampling effects.We quantified acute trampling impacts on assemblages of upper shore invertebrates in a controlled experiment over a range of foot traffic intensities (up to 56 steps per square metre) on a temperate beach in Victoria, Australia. Trampling significantly altered assemblage structure (species composition and density) and was correlated with significant declines in invertebrate abundance and species richness. Trampling effects were strongest for rare species. In heavily trafficked plots the abundance of sand hoppers (Amphipoda), a principal prey item of threatened Hooded Plovers breeding on this beach, was halved. In contrast to the consistently strong effects of trampling, natural habitat attributes (e.g. sediment grain size, compactness) were much less influential predictors. If acute suppression of invertebrates caused by trampling, as demonstrated here, is more widespread on beaches it may constitute a significant threat to endangered vertebrates reliant on these invertebrates. This calls for a re-thinking of conservation actions by considering active management of food resources, possibly through enhancement of wrack or direct augmentation of prey items to breeding territories.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherPublic Library of Sciences
dc.relation.ispartofpagefrome0161905-1
dc.relation.ispartofpagetoe0161905-13
dc.relation.ispartofissue8
dc.relation.ispartofjournalPLoS One
dc.relation.ispartofvolume11
dc.subject.fieldofresearchMarine and Estuarine Ecology (incl. Marine Ichthyology)
dc.subject.fieldofresearchcode060205
dc.titleThe Early Shorebird Will Catch Fewer Invertebrates on Trampled Sandy Beaches
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2016 Schlacher et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
gro.hasfulltextFull Text
gro.griffith.authorConnolly, Rod M.


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