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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Latitude, temperature, and habitat complexity predict predation pressure in eelgrass beds across the Northern Hemisphere Reynolds, P.L.; Stachowicz, J.J.; Hovel, K.; Boström, C.; Boyer, K.; Cusson, M.; Eklöf, J.S.; Engel, F.G.; Engelen, A.H.; Eriksson, B.K.; Fodrie, F.J.; Griffin, J.N.; Hereu, C.M.; Hori, M.; Hanley, T.C.; Ivanov, M.; Jorgensen, P.; Kruschel, C.; Lee, K.-S.; McGlathery, K.; Moksnes, P.-O.; Nakaoka, M.; O'Connor, M.I.; O'Connor, N.E.; Orth, R.J.; Rossi, F.; Ruesink, J.; Sotka, E.E.; Thormar, J.; Tomas, F.; Unsworth, R.K.F.; Whalen, M.A.; Duffy, J.E. (2018). Latitude, temperature, and habitat complexity predict predation pressure in eelgrass beds across the Northern Hemisphere. Ecology 99(1): 29-35. https://dx.doi.org/10.1002/ecy.2064 In: Ecology. Ecological Society of America: Brooklyn, NY. ISSN 0012-9658; e-ISSN 1939-9170, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 368238 [ aanvragen ]

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Trefwoorden

Zostera subg. Zostera marina Linnaeus, 1753 [WoRMS] Marien/Kust

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Auteurs		Top
Reynolds, P.L. Stachowicz, J.J. Hovel, K. Boström, C., meer Boyer, K. Cusson, M., meer Eklöf, J.S. Engel, F.G. Engelen, A.H. Eriksson, B.K. Fodrie, F.J.	Griffin, J.N. Hereu, C.M. Hori, M. Hanley, T.C. Ivanov, M. Jorgensen, P. Kruschel, C. Lee, K.-S. McGlathery, K. Moksnes, P.-O. Nakaoka, M.	O'Connor, M.I. O'Connor, N.E. Orth, R.J. Rossi, F., meer Ruesink, J. Sotka, E.E. Thormar, J. Tomas, F. Unsworth, R.K.F., meer Whalen, M.A. Duffy, J.E.

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Abstract

Latitudinal gradients in species interactions are widely cited as potential causes or consequences of global patterns of biodiversity. However, mechanistic studies documenting changes in interactions across broad geographic ranges are limited. We surveyed predation intensity on common prey (live amphipods and gastropods) in communities of eelgrass (Zostera marina) at 48 sites across its Northern Hemisphere range, encompassing over 37° of latitude and four continental coastlines. Predation on amphipods declined with latitude on all coasts but declined more strongly along western ocean margins where temperature gradients are steeper. Whereas in situ water temperature at the time of the experiments was uncorrelated with predation, mean annual temperature strongly positively predicted predation, suggesting a more complex mechanism than simply increased metabolic activity at the time of predation. This large-scale biogeographic pattern was modified by local habitat characteristics; predation declined with higher shoot density both among and within sites. Predation rates on gastropods, by contrast, were uniformly low and varied little among sites. The high replication and geographic extent of our study not only provides additional evidence to support biogeographic variation in predation intensity, but also insight into the mechanisms that relate temperature and biogeographic gradients in species interactions.

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