Short-term differences in animal assemblages in patches formed by loss and growth of habitat

DSpace/Manakin Repository

Search OPUS

Advanced Search


My Account

Show simple item record Macreadie, PI Connolly, RM Keough, MJ Jenkins, GP Hindell, JS 2012-02-02T06:23:37Z 2010-08
dc.identifier.citation Austral Ecology, 2010, 35 (5), pp. 515 - 521
dc.identifier.issn 1442-9985
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract Ecological theory predicts that habitat growth and loss will have different effects on community structure, even if they produce patches of the same size. Despite this, studies on the effects of patchiness are often performed without prior knowledge of the processes responsible for the patchiness. We manipulated artificial seagrass habitat in temperate Australia to test whether fish and crustacean assemblages differed between habitats that formed via habitat loss and habitat growth. Habitat loss treatments (originally 16 m2) and habitat growth treatments (originally 0 m2) were manipulated over 1 week until each reached a final patch size of 4 m2. At this size, each was compared through time (0-14 days after manipulation) with control patches (4 m2 throughout the experiment). Assemblages differed significantly among treatments at 0 and 1 day after manipulation, with differences between growth and loss treatments contributing to most of the dissimilarity. Immediately after the final manipulation, total abundance in habitat loss treatments was 46% and 62% higher than controls and habitat growth treatments, respectively, which suggests that animals crowded into patches after habitat loss. In contrast to terrestrial systems, crowding effects were brief (≤1 day), signifying high connectivity in marine systems. Growth treatments were no different to controls, despite the lower probability of animals encountering patches during the growth phase. Our study shows that habitat growth and loss can cause short-term differences in animal abundance and assemblage structure, even if they produce patches of the same size. © 2009 The Authors. Journal compilation © 2009 Ecological Society of Australia.
dc.language eng
dc.relation.isbasedon 10.1111/j.1442-9993.2009.02060.x
dc.title Short-term differences in animal assemblages in patches formed by loss and growth of habitat
dc.type Journal Article
dc.description.version Published
dc.parent Austral Ecology
dc.journal.volume 5
dc.journal.volume 35
dc.journal.number 5 en_US
dc.publocation Australia en_US
dc.identifier.startpage 515 en_US
dc.identifier.endpage 521 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0608 Zoology
dc.personcode 108249
dc.percentage 100 en_US Zoology 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.location.activity ISI:000286338300003
dc.description.keywords Connectivity
dc.description.keywords Crowding effect
dc.description.keywords Fragmentation
dc.description.keywords Habitat growth
dc.description.keywords Habitat loss
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
pubs.consider-herdc false
utslib.collection.history Closed (ID: 3)

Files in this item

This item appears in the following Collection(s)

Show simple item record