Trophic structure and diversity in rocky intertidal upwelling ecosystems: A comparison of community patterns across California, Chile, South Africa and New Zealand
نویسنده
چکیده
Marine Science Institute, University of California, Santa Barbara, CA 93106-6150, USA Marine Biology Research Centre, Zoology Department, University of Cape Town, Private Bag, Rondebosch 7701, South Africa Ctr Estud Avanzados Zonas Áridas, Univ Católica Norte, Fac Ciencias Mar, Larrondo 1281, Coquimbo, Chile Univ. Canterbury, Sch. Biol. Sci., Marine Ecol. Res. Grp., Private Bag 4800, Christchurch 1, New Zealand
منابع مشابه
Top-down and bottom-up community regulation in marine rocky intertidal habitats.
Strong top-down control by consumers has been demonstrated in rocky intertidal communities around the world. In contrast, the role of bottom-up effects (nutrients and productivity), known to have important influences in terrestrial and particularly freshwater ecosystems, is poorly known in marine hard-bottom communities. Recent studies in South Africa, New England, Oregon and New Zealand sugges...
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Recent studies suggest that nearshore oceanographic conditions can have important effects on the structure of benthic communities. On Santa Cruz Island (SCI), CA, USA there is a persistent difference in mean annual sea surface temperature (SST) around the island due to its location at the confluence of opposing cold and warm ocean current systems. Over the course of a 4-year study (1997–2001) s...
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The Point Conception, California, USA region (hereafter PC) is one of the most important biogeographic and oceanographic discontinuities on the US west coast. Here we address how mesoscale oceanographic variability in the region around PC affects the growth of the competitively dominant species in the rocky intertidal assemblage: the mussel Mytilus californianus. Strong upwelling and high wave ...
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Similar environmental driving forces can produce similarity among geographically distant ecosystems. Coastal oceanic upwelling, for example, has been associated with elevated biomass and abundance patterns of certain functional groups, e.g., corticated macroalgae. In the upwelling system of Northern Chile, we examined measures of intertidal macrobenthic composition, structure and trophic ecolog...
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Karina J. Nielsen* and Sergio A. Navarrete Sonoma State University, Department of Biology, Rohnert Park, CA 94928, USA Pontificia Universidad Católica de Chile, Estación Costera de Investigaciones Marinas and Center for Advanced Studies in Ecology and Biodiversity, Santiago, Chile *Correspondence: E-mail: [email protected] Abstract Theory suggests that variation in resource supply shoul...
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