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| Leclerc, Jean-charles; Riera, Pascal; Laurans, Martial; Leroux, Cedric; Leveque, Laurent; Davoult, Dominique. |
| Worldwide kelp forests have been the focus of several studies concerning ecosystems dysfunction in the past decades. Multifactorial kelp threats have been described and include deforestation due to human impact, cascading effects and climate change. Here, we compared community and trophic structure in two contrasting kelp forests off the coasts of Brittany. One has been harvested five years before sampling and shelters abundant omnivorous predators, almost absent from the other, which has been treated as preserved from kelp harvest. δ15N analyses conducted on the overall communities were linked to the tropho-functional structure of different strata featuring these forests (stipe and holdfast of canopy kelp and rock). Our results yielded site-to-site... |
| Tipo: Text |
Palavras-chave: Laminaria hyperborea; Community cascade; Stable isotopes; Biomass; Suspension-feeders; Omnivorous predators. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00226/33747/32161.pdf |
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| Hummel, Herman; Van Avesaath, Pim; Wijnhoven, Sander; Kleine-schaars, Loran; Degraer, Steven; Kerckhof, Francis; Bojanic, Natalia; Skejic, Sanda; Vidjak, Olja; Rousou, Maria; Orav-kotta, Helen; Kotta, Jonne; Jourde, Jerome; Pedrotti, Maria Luiza; Leclerc, Jean-charles; Simon, Nathalie; Rigaut-jalabert, Fabienne; Bachelet, Guy; Lavesque, Nicolas; Arvanitidis, Christos; Pavloudi, Christina; Faulwetter, Sarah; Crowe, Tasman; Coughlan, Jennifer; Benedetti-cecchi, Lisandro; Dal Bello, Martina; Magni, Paolo; Como, Serena; Coppa, Stefania; Ikauniece, Anda; Ruginis, Tomas; Jankowska, Emilia; Weslawski, Jan Marcin; Warzocha, Jan; Gromisz, Slawomira; Witalis, Bartosz; Silva, Teresa; Ribeiro, Pedro; Fernandes De Matos, Valentina Kirienko; Sousa-pinto, Isabel; Veiga, Puri; Troncoso, Jesus; Guinda, Xabier; Juanes De La Pena, Jose Antonio; Puente, Araceli; Espinosa, Free; Perez-ruzafa, Angel; Frost, Matt; Mcneill, Caroline Louise; Peleg, Ohad; Rilov, Gil. |
| Within the COST action EMBOS (European Marine Biodiversity Observatory System) the degree and variation of the diversity and densities of soft-bottom communities from the lower intertidal or the shallow subtidal was measured at 28 marine sites along the European coastline (Baltic, Atlantic, Mediterranean) using jointly agreed and harmonized protocols, tools and indicators. The hypothesis tested was that the diversity for all taxonomic groups would decrease with increasing latitude. The EMBOS system delivered accurate and comparable data on the diversity and densities of the soft sediment macrozoobenthic community over a large-scale gradient along the European coastline. In contrast to general biogeographic theory, species diversity showed no linear... |
| Tipo: Text |
Palavras-chave: Soft sediment; Benthos; Species diversity; Densities; Harmonization of methods; European cline; Biogeography; Latitudinal diversity gradient (LDG). |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00376/48675/49010.pdf |
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