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Spatial and temporal variation in fecundity among populations of Acropora millepora on the Great Barrier Reef

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dc.contributor Australian Inst Marine Sci
dc.contributor Sch Marine & Environm Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor Coll Sci & Engn
dc.contributor James Cook Univ
dc.contributor Arc Ctr Excellence Coral Reef Studies
dc.contributor University Of Malaysia Terengganu
dc.contributor Universiti Malaysia Terengganu
dc.contributor Univ Malaysia Terengganu
dc.contributor James Cook University GRAHAM, E. M. PRATCHETT, M. S. BAY, L. K. BAIRD, A. H. TAN, C. H. 2017-03-22T22:31:30Z 2017-03-22T22:31:30Z 2020-07-20T00:15:07Z 2017-03-22T22:31:30Z 2017-03-22T22:31:30Z 2020-07-20T00:15:07Z 2016-12-15
dc.identifier.citation Tan CH, Pratchett MS, Bay LK, Graham EM, Baird AH (2016) Spatial and temporal variation in fecundity among populations of Acropora millepora on the Great Barrier Reef. Marine Ecology Progress Series 561: 147-153
dc.identifier.issn 0171-8630
dc.description.abstract Sexual reproduction is vital for population persistence, even in organisms that can reproduce asexually, such as corals. Yet, information on spatial and temporal variation in reproductive traits is surprisingly rare. Here, we examined spatial and temporal variation in fecundity, defined as the number of oocytes per polyp, in the staghorn coral Acropora millepora over 2 yr among 6 populations separated by over 700 km on inshore reefs on the Great Barrier Reef. Variation in fecundity was greatest at small spatial scales: there were pronounced differences in fecundity within and among colonies at each site but little variation at the site or regional scale. This suggests that fecundity is affected by environmental variables that also vary at small scales, such as light and water flow, rather than variables that vary on a regional scale, such as temperature. Colony fecundity in the first year was a good predictor of colony fecundity in the second year, suggesting that some genotypes are more fecund than others. This research suggests that factors operating at the scale of the individual, such as microhabitat differences in flow or light, or genetic identity, are the main cause of variation in fecundity among coral colonies.
dc.description.sponsorship We thank Alison Jones, the AIMS MMP team and many volunteersfor assistance in the field. This study was supported by Australian Research Council Centre of Excellence Grant CE0561432.
dc.language English
dc.relation.ispartof Null
dc.subject Coral Reefs
dc.subject Coral Lobophytum-compactum
dc.subject Ecology
dc.subject Impacts
dc.subject Colony Size
dc.subject Growth
dc.subject Environmental Sciences & Ecology
dc.subject Life Histories
dc.subject Demography
dc.subject Marine & Freshwater Biology
dc.subject Recruitment
dc.subject Oceanography
dc.subject Competition
dc.subject Scleractinian Corals
dc.subject Flow
dc.subject Reproduction
dc.title Spatial and temporal variation in fecundity among populations of Acropora millepora on the Great Barrier Reef
dc.type journal article
dc.identifier.doi 10.3354/meps11936
dc.identifier.wos WOS:000391695800011

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