English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/112604
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Fish community reassembly after a coral mass mortality: higher trophic groups are subject to increased rates of extinction

AuthorsAlonso, David ; Pinyol-Gallemí, Aleix; Alcoverro, Teresa ; Arthur, Rohan
KeywordsStochastic extinction- colonisation models
Trophic island biogeography
Coral reef fish communities
Dispersal community assembly
MacArthur and Wilson island biogeography
Niche community assembly
Post-disturbance community reassembly
Issue Date2015
PublisherBlackwell Publishing
CitationEcology Letters : doi: 10.1111/ele.12426 (2015)
AbstractSince Gleason and Clements, our understanding of community dynamics has been influenced by theories emphasising either dispersal or niche assembly as central to community structuring. Determining the relative importance of these processes in structuring real-world communities remains a challenge. We tracked reef fish community reassembly after a catastrophic coral mortality in a relatively unfished archipelago. We revisited the stochastic model underlying MacArthur and Wilson’s Island Biogeography Theory, with a simple extension to account for trophic identity. Colonisation and extinction rates calculated from decadal presence-absence data based on (1) species neutrality, (2) trophic identity and (3) site-specificity were used to model post-disturbance reassembly, and compared with empirical observations. Results indicate that species neutrality holds within trophic guilds, and trophic identity significantly increases overall model performance. Strikingly, extinction rates increased clearly with trophic position, indicating that fish communities may be inherently susceptible to trophic downgrading even without targeted fishing of top predators.
Description11 páginas, 5 figuras, 1 tabla
Publisher version (URL)http://dx.doi.org/10.1111/ele.12426
URIhttp://hdl.handle.net/10261/112604
DOI10.1111/ele.12426
ISSN 1461-023X
E-ISSN1461-0248
Appears in Collections:(CEAB) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.