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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
The contribution of deep-sea macrohabitat heterogeneity to global nematode diversity
Marine Ecology, Volume 31, No. 1, Year 2010
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Description
The great variety of geological and hydrological conditions in the deep sea generates many different habitats. Some are only recently explored, although their true extent and geographical coverage are still not fully established. Both continental margins and mid-oceanic seafloors are much more complex ecologically, geologically, chemically and hydrodynamically than originally thought. As a result, fundamental patterns of species distribution first observed and explained in the context of relatively monotonous slopes and abyssal plains must now be re-evaluated in the light of this newly recognized habitat heterogeneity. Based on a global database of nematode genus composition, collected as part of the Census of Marine Life, we show that macrohabitat heterogeneity contributes significantly to total deep-sea nematode diversity on a global scale. Different deep-sea settings harbour specific nematode assemblages. Some of them, like coral rubble zones or nodule areas, are very diverse habitats. Factors such as increased substrate complexity in the case of nodules and corals seem to facilitate the co-existence of a large number of genera with different modes of life, ranging from sediment dwelling to epifaunal. Furthermore, strong biochemical gradients in the case of vents or seeps are responsible for the success of particular genera, which are not prominent in more typical soft sediments. Many nematode deep-sea genera are cosmopolitan, inhabiting a variety of deep-sea habitats and oceans, whereas only 21% of all deep-sea genera recorded are restricted to a single habitat. In addition to habitat heterogeneity, regional differences are important in structuring nematode assemblages. For instance, seeps from different regions yield different genera that thrive on the sulphidic sediments. This study also shows that many areas and habitats remain highly under-sampled, affecting our ability to understand fully the contribution of habitat heterogeneity versus regional differences to global nematode diversity. © 2010 Blackwell Verlag GmbH.
Authors & Co-Authors
Vanreusel, Ann
Belgium, Ghent
Universiteit Gent
Fonseca, Gustavo
Germany, Bremerhaven
Alfred-wegener-institut Helmholtz-zentrum Für Polar- Und Meeresforschung
Danovaro, Roberto
Italy, Ancona
Università Politecnica Delle Marche
Da Silva, Maria Cristina
Brazil, Recife
Universidade Federal de Pernambuco
Esteves, André M.
Brazil, Recife
Universidade Federal de Pernambuco
Ferrero, Tim
United Kingdom, London
The Natural History Museum, London
Gad, Gunnar
Germany, Oldenburg
Universität Oldenburg
Galtsova, Valentina
Belgium, Ghent
Universiteit Gent
Gambi, C.
Italy, Ancona
Università Politecnica Delle Marche
Da Fonsêca Genevois, Veronica
Brazil, Recife
Universidade Federal de Pernambuco
Ingels, Jeroen
Belgium, Ghent
Universiteit Gent
Ingole, Baban S.
India, Goa
National Institute of Oceanography India
Lampadariou, Nikolaos
Greece, Anavyssos
Hellenic Centre for Marine Research
Merckx, Bea
Belgium, Ghent
Universiteit Gent
Miljutin, Dmitry
Germany, Frankfurt am Main
Senckenberg Gesellschaft Für Naturforschung
Miljutina, Maria
Germany, Frankfurt am Main
Senckenberg Gesellschaft Für Naturforschung
Russian Federation, Moscow
P.p.shirshov Institute of Oceanology, Russian Academy of Sciences
Muthumbi, Agnes Wangui N.
Kenya, Nairobi
University of Nairobi
Netto, Sergio
Brazil, Tubarao
Universidade do Sul de Santa Catarina
Portnova, Daria
Russian Federation, Moscow
P.p.shirshov Institute of Oceanology, Russian Academy of Sciences
Radziejewska, Teresa
Poland, Szczecin
Uniwersytet Szczecinski
Raes, Maarten
Belgium, Ghent
Universiteit Gent
Tchesunov, Alexei
Russian Federation, Moscow
Lomonosov Moscow State University
Vanaverbeke, Jan
Belgium, Ghent
Universiteit Gent
Van Gaever, Saskia
Belgium, Ghent
Universiteit Gent
Venekey, Virág
Brazil, Belem
Universidade Federal do Pará
Bezerra, Tânia Nara Campinas
Belgium, Ghent
Universiteit Gent
Flint, Hannah
United Kingdom, Southampton
National Oceanography Centre Southampton
Copley, Jonathan T.
United Kingdom, Southampton
National Oceanography Centre Southampton
Pape, Ellen
Belgium, Ghent
Universiteit Gent
Zeppilli, Daniela
Italy, Ancona
Università Politecnica Delle Marche
Martinez, Pedro Arbizu
Germany, Frankfurt am Main
Senckenberg Gesellschaft Für Naturforschung
Galeron, Joelle
France, Plouzane
Ifremer Institut Francais de Recherche Pour L'exploitation de la Mer
Statistics
Citations: 215
Authors: 32
Affiliations: 17
Identifiers
Doi:
10.1111/j.1439-0485.2009.00352.x
ISSN:
01739565
e-ISSN:
14390485
Research Areas
Genetics And Genomics
Health System And Policy