Local and regional controls of phylogenetic structure at the high-latitude range limits of corals

Sommer, Brigitte, Sampayo, Eugenia M., Beger, Maria, Harrison, Peter L., Babcock, Russ and Pandolfi, John M. (2017) Local and regional controls of phylogenetic structure at the high-latitude range limits of corals. Proceedings of the Royal Society B - Biological Sciences, 284 1861: . doi:10.1098/rspb.2017.0915

Author Sommer, Brigitte
Sampayo, Eugenia M.
Beger, Maria
Harrison, Peter L.
Babcock, Russ
Pandolfi, John M.
Title Local and regional controls of phylogenetic structure at the high-latitude range limits of corals
Journal name Proceedings of the Royal Society B - Biological Sciences   Check publisher's open access policy
ISSN 0962-8452
Publication date 2017-08-23
Sub-type Article (original research)
DOI 10.1098/rspb.2017.0915
Open Access Status Not yet assessed
Volume 284
Issue 1861
Total pages 10
Place of publication London, United Kingdom
Publisher Royal Society Publishing
Language eng
Abstract Understanding how range-edge populations will respond to climate change is an urgent research priority. Here, we used a phylogenetic community ecology approach to examine how ecological and evolutionary processes shape biodiversity patterns of scleractinian corals at their high-latitude range limits in eastern Australia. We estimated phylogenetic signal in seven ecologically important functional traits and conducted tests of phylogenetic structure at local and regional scales using the net relatedness (NRI) and nearest taxon indices (NTI) for the presence/absence and abundance data. Regional tests showed light phylogenetic clustering, indicating that coral species found in this subtropical-to-temperate transition zone are more closely related to each other than are species on the nearby, more northerly Great Barrier Reef. Local tests revealed variable patterns of phylogenetic clustering and overdispersion and higher than expected phylogenetic turnover among sites. In combination, these results are broadly consistent with the hierarchical filtering model, whereby species pass through a regional climatic filter based on their tolerances for marginal conditions and subsequently segregate into local assemblages according to the relative strength of habitat filtering and species interactions. Conservatism of tested traits suggests that corals will likely track their niches with climate change. Nevertheless, high turnover of lineages among sites indicates that range shifts will probably vary among species and highlights the vulnerability and conservation significance of high-latitude reefs.
Keyword coral
environmental filtering
niche conservatism
phylogenetic structure
range limit
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes http://rspb.royalsocietypublishing.org/content/284/1861/20170915

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Biological Sciences Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Mon, 11 Sep 2017, 16:46:41 EST by Brigitte Sommer on behalf of School of Biological Sciences