Exploring the ecology of deep-sea hydrothermal vents in a metacommunity framework

TitleExploring the ecology of deep-sea hydrothermal vents in a metacommunity framework
Publication TypeJournal Article
Year of Publication2018
AuthorsMullineaux L.S, Metaxas A., Beaulieu S.E, Bright M., Gollner S., Grupe B.M, Herrera S., Kellner J.B, Levin L.A, Mitarai S., Neubert M.G, Thurnherr A.M, Tunnicliffe V., Watanabe H.K, Won Y.J
JournalFrontiers in Marine Science
Date Published2019/02
Type of ArticleReview
Accession NumberWOS:000456926700001
Keywordscommunity composition; connectivity; dispersal; disturbance; east pacific rise; effective population sizes; Environmental Sciences & Ecology; fuca ridge; genetic-structure; hydrothermal vent; larval; long-distance dispersal; Marine & Freshwater Biology; metacommunity; metapopulation; metapopulation model; mid-atlantic ridge; resilience; Species diversity; sulfide deposits

Species inhabiting deep-sea hydrothermal vents are strongly influenced by the geological setting, as it provides the chemical-rich fluids supporting the food web, creates the patchwork of seafloor habitat, and generates catastrophic disturbances that can eradicate entire communities. The patches of vent habitat host a network of communities (a metacommunity) connected by dispersal of planktonic larvae. The dynamics of the metacommunity are influenced not only by birth rates, death rates and interactions of populations at the local site, but also by regional influences on dispersal from different sites. The connections to other communities provide a mechanism for dynamics at a local site to affect features of the regional biota. In this paper, we explore the challenges and potential benefits of applying metacommunity theory to vent communities, with a particular focus on effects of disturbance. We synthesize field observations to inform models and identify data gaps that need to be addressed to answer key questions including: (1) what is the influence of the magnitude and rate of disturbance on ecological attributes, such as time to extinction or resilience in ametacommunity; (2) what interactions between local and regional processes control species diversity, and (3) which communities are "hot spots" of key ecological significance. We conclude by assessing our ability to evaluate resilience of vent metacommunities to human disturbance (e.g., deep-sea mining). Although the resilience of a few highly disturbed vent systems in the eastern Pacific has been quantified, these values cannot be generalized to remote locales in the western Pacific ormid Atlantic where disturbance rates are different and information on local controls is missing.

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