Closely related Symbiodinium spp. differ in relative dominance in coral reef host communities across environmental, latitudinal and biogeographic gradientsстатья из журнала
Аннотация: MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 284:147-161 (2004) - doi:10.3354/meps284147 Closely related Symbiodinium spp. differ in relative dominance in coral reef host communities across environmental, latitudinal and biogeographic gradients T. C. LaJeunesse1,2,6,*, R. Bhagooli3, M. Hidaka3, L. deVantier4, T. Done4, G. W. Schmidt1, W. K. Fitt2, O. Hoegh-Guldberg5 1Department of Plant Biology, Plant Sciences Building, 2Institute of Ecology, University of Georgia, Athens, Georgia 30602, USA 3Department of Chemistry, Biology and Marine Sciences, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan 4Australian Institute of Marine Science, Private Mail Box 3, Townsville, Queensland 4810, Australia5Centre for Marine Studies, University of Queensland, St. Lucia, Queensland 4072, Australia6Present address: Department of Biology, Florida International University, University Park Campus, OE 245 11200SW 8th Street, Miami, Florida, 33199, USA *-Email: lajeunes@fiu.edu ABSTRACT: The diversity and community structures of symbiotic dinoflagellates are described from reef invertebrates in southern and central provinces of the Great Barrier Reef (GBR), Australia, and Zamami Island, Okinawa, Japan. The symbiont assemblages from region to region were dominated by Clade C Symbiodinium spp. and consisted of numerous host-specific and/or rare types (specialists), and several types common to many hosts (generalists). Prevalence in the host community among certain host-generalist symbionts differed between inshore and offshore environments, across latitudinal (central versus southern GBR) gradients, and over wide geographic ranges (GBR versus Okinawa). One particular symbiont (C3h) from the GBR had a dramatic shift in dominance. Its prevalence ranged from being extremely rare, or absent on high-latitude reefs to dominating the scleractinian diversity on a mid-latitude inshore reef. These changes occurred among coral fauna whose larvae must acquire symbionts from environmental sources (horizontal symbiont acquisition). Such differences did not occur among vertical transmitters such as Porites spp., Montipora spp. and pocilloporids (corals that directly transmit symbionts to their offspring) or among those hosts displaying horizontal acquisition, but that associate with specific symbionts. Most host-specialized types were found to be characteristic of a particular geographic region (i.e. Okinawa versus Central GBR versus Southern GBR). The mode of symbiont acquisition may play an important role in how symbiont composition may shift in west Pacific host communities in response to climate change. There is no indication that recent episodes of mass bleaching have provoked changes in host-symbiont combinations from the central GBR. KEY WORDS: Symbiodinium · Zooxanthellae biodiversity · Coral symbiosis · Phylogeography · Community structure Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 284. Online publication date: December 21, 2004 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2004 Inter-Research.
Год издания: 2004
Авторы: Todd C. LaJeunesse, Ranjeet Bhagooli, Michio Hidaka, L. M. DeVantier, T. J. Done, GW Schmidt, WK Fitt, Ove Hoegh‐Guldberg
Издательство: Inter-Research
Источник: Marine Ecology Progress Series
Ключевые слова: Coral and Marine Ecosystems Studies, Marine and coastal plant biology, Coastal wetland ecosystem dynamics
Открытый доступ: bronze
Том: 284
Страницы: 147–161