Multi‐scale habitat modification by coexisting ecosystem engineers drives spatial separation of macrobenthic functional groups

Oikos - Tập 124 Số 11 - Trang 1502-1510 - 2015
Serena Donadi1, Tjisse van der Heide2, Theunis Piersma3,4, Els M. van der Zee3,4, Ellen J. Weerman2, Johan van de Koppel2,5, Han Olff2, Clare Devine1, Udhi Eko Hernawan1, Myra Boers1, Linda Planthof1, Britas Klemens Eriksson1
1Dept of Marine Benthic Ecology and Evolution, Centre for Ecological and Evolutionary Studies (CEES), Univ. of Groningen, PO Box 11103, NL-9700 CC Groningen, the Netherlands
2Community and Conservation Ecology Group, Centre for Ecological and Evolutionary Studies (CEES), Univ. of Groningen, PO Box 11103, NL-9700 CC Groningen, the Netherlands
3Animal Ecology Group, Centre for Ecological and Evolutionary Studies (CEES), Univ. of Groningen, PO Box 11103, NL-9700 CC Groningen, the Netherlands
4Dept of Marine Ecology, NIOZ Royal Netherlands Inst. for Sea Research, PO Box 59, NL-1790 AB Den Burg, Texel, the Netherlands
5Spatial Ecology Dept, NIOZ Royal Netherlands Inst. for Sea Research, PO Box 140, NL-4400AC Yerseke, the Netherlands

Tóm tắt

By changing habitat conditions, ecosystem engineers increase niche diversity and have profound effects on the distribution and abundances of other organisms. Although many ecosystems contain several engineering species, it is still unclear how the coexistence of multiple engineers affects the physical habitat and the structure of the community on a landscape scale. Here, we investigated through a large‐scale field manipulation how three coexisting engineers on intertidal flats (cockles Cerastoderma edule; lugworms Arenicola marina; blue mussels Mytilus edulis) influence the functional composition of the local macrobenthic community and what the consequences are at the landscape level. By using biological trait analysis (BTA), we show that on the local scale biogenic changes in sediment accumulation and organic matter content translated into specific shifts in the distribution of functional traits within the community. At a landscape scale, the co‐occurrence of multiple ecosystem engineers resulted in the spatial separation of different functional groups, i.e. different functional groups dominated unique complementary habitats. Our results emphasize the role of co‐occurring multiple engineers in shaping natural communities, thus contributing to a better knowledge of community assembly rules. This understanding can profitably be used to improve ecosystem‐based management and conservation actions.

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Oikos

Tập 124 Số 11

1502-1510

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