Native species behaviour mitigates the impact of habitat-forming invasive seaweed

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Show simple item record Wright, JT Byers, JE Koukoumaftsis, LP Ralph, PJ Gribben, PE 2011-02-07T06:19:48Z 2010-06
dc.identifier.citation Oecologia, 2010, 163 (2), pp. 527 - 534
dc.identifier.issn 0029-8549
dc.identifier.other C1 en_US
dc.description.abstract Habitat-forming invasive species cause large, novel changes to the abiotic environment. These changes may elicit important behavioural responses in native fauna, yet little is known about mechanisms driving this behaviour and how such trait-mediated responses influence the fitness of native species. Low dissolved oxygen is a key abiotic change created by the habitat-forming invasive seaweed, Caulerpa taxifolia, which influences an important behavioural response (burrowing depth) in the native infaunal bivalve Anadara trapezia. In Caulerpa-colonised areas, Anadara often emerged completely from the sediment, and we experimentally demonstrate that water column hypoxia beneath the Caulerpa canopy is the mechanism instigating this "pop-up" behaviour. Importantly, pop-up in Caulerpa allowed similar survivorship to that in unvegetated sediment; however, when we prevented Anadara from popping-up, they suffered >50% mortality in just 1 month. Our findings not only highlight the substantial environmental alteration by Caulerpa, but also an important role for the behaviour of native species in mitigating the effects of habitat-forming invasive species. © 2010 Springer-Verlag.
dc.language eng
dc.relation.isbasedon 10.1007/s00442-010-1608-2
dc.title Native species behaviour mitigates the impact of habitat-forming invasive seaweed
dc.type Journal Article
dc.parent Oecologia
dc.journal.volume 2
dc.journal.volume 163
dc.journal.number 2 en_US
dc.publocation New York, USA en_US
dc.identifier.startpage 527 en_US
dc.identifier.endpage 534 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0602 Ecology
dc.personcode 890085
dc.personcode 101424
dc.personcode 102921
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Ecosystem engineers - Hypoxia - Infauna - Marine algae - Soft-sediment ecology en_US
dc.description.keywords Ecosystem engineers
dc.description.keywords Hypoxia
dc.description.keywords Infauna
dc.description.keywords Marine algae
dc.description.keywords Soft-sediment ecology
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
utslib.collection.history Uncategorised (ID: 363)
utslib.collection.history Closed (ID: 3)

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