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| Reynolds, Pamela L.; Stachowicz, John J.; Hovel, Kevin; Bostrom, Christoffer; Boyer, Katharyn; Cusson, Mathieu; Eklof, Johan S.; Engel, Friederike G.; Engelen, Aschwin H.; Eriksson, Britas Klemens; Fodrie, F. Joel; Griffin, John N.; Hereu, Clara M.; Hori, Masakazu; Hanley, Torrance C.; Ivanov, Mikhail; Jorgensen, Pablo; Kruschel, Claudia; Lee, Kun-seop; Mcglathery, Karen; Moksnes, Per-olav; Nakaoka, Masahiro; O'Connor, Mary I.; O'Connor, Nessa E.; Orth, Robert J.; Rossi, Francesca; Ruesink, Jennifer; Sotka, Erik E.; Thormar, Jonas; Tomas, Fiona; Unsworth, Richard K. F.; Whalen, Matthew A.; Duffy, J. Emmett. |
| 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 degrees 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 insitu water temperature at the time of the experiments was uncorrelated with predation, mean annual... |
| Tipo: Text |
Palavras-chave: Biogeography; Latitude; Mesograzer; Predation; Seagrass; Species interactions; Temperature; Zostera. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00610/72246/71053.pdf |
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| Rohr, Maria Emilia; Holmer, Marianne; Baum, Julia K.; Bjork, Mats; Chin, Diana; Chalifour, Lia; Cimon, Stephanie; Cusson, Mathieu; Dahl, Martin; Deyanova, Diana; Duffy, J. Emmet; Eklof, Johan S.; Geyer, Julie K.; Griffin, John N.; Gullstrom, Martin; Hereu, Clara M.; Hori, Masakazu; Hovel, Kevin A.; Hughes, A. Randall; Jorgensen, Pablo; Kiriakopolos, Stephanie; Moksnes, Per-olav; Nakaoka, Masahiro; O'Connor, Mary I.; Peterson, Bradley; Reiss, Katrin; Reynolds, Pamela L.; Rossi, Francesca; Ruesink, Jennifer; Santos, Rui; Stachowicz, John J.; Tomas, Fiona; Lee, Kun-seop; Unsworth, Richard K. F.; Bostrom, Christoffer. |
| Despite the importance of coastal ecosystems for the global carbon budgets, knowledge of their carbon storage capacity and the factors driving variability in storage capacity is still limited. Here we provide an estimate on the magnitude and variability of carbon stocks within a widely distributed marine foundation species throughout its distribution area in temperate Northern Hemisphere. We sampled 54 eelgrass (Zostera marina) meadows, spread across eight ocean margins and 36 degrees of latitude, to determine abiotic and biotic factors influencing organic carbon (C-org) stocks in Zostera marina sediments. The C-org stocks (integrated over 25-cm depth) showed a large variability and ranged from 318 to 26,523gC/m(2) with an average of 2,721gC/m(2). The... |
| Tipo: Text |
Palavras-chave: Blue carbon; Seagrass; Z; Marina. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00610/72199/70994.pdf |
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| Rossi, Francesca; Colao, Elodie; Jose Martinez, Maria; Klein, Judith C.; Carcaillet, Frederique; Callier, Myriam; De Wit, Rutger; Caro, Audrey. |
| Sulphur-oxidising endosymbiont-bearing bivalves often inhabit seagrass meadows, where they can control sulphide levels and variably contribute to carbon cycling, by feeding on endosymbiotic bacteria and/or on particulate organic matter from the water column. The patterns of variability in their feeding mode and their spatial distribution within the seagrass meadows are however poorly studied. Seagrass beds form naturally patchy habitats with seagrass-sand edges that may have variable effects on different organisms. The present study aims at understanding differences in feeding mode and abundance of the endosymbiont-bearing bivalve Loripes lacteus (sensu Poli, 1791) as well as the physiological conditions of its endosymbiotic populations between edge and... |
| Tipo: Text |
Palavras-chave: Bivalve; Food web; Mediterranean; Seagrass; Stable isotopes; Symbiosis. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00138/24911/26373.pdf |
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