Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Biogenic reefs affect multiple components of intertidal soft-bottom benthic assemblages: The Lanice conchilega case study ArchiMer
De Smet, Bart; D'Hondt, An-sofie; Verhelst, Pieterjan; Fournier, Jerome; Godet, Laurent; Desroy, Nicolas; Rabaut, Marijn; Vincx, Magda; Vanaverbeke, Jan.
Biogenic reefs composed of the tube-building polychaete Lanice conchilega are important from a conservation point of view because they noticeably increase the biodiversity in otherwise species poor environments. However, up to now, little or no attention has been paid to the intertidal epi- and hyperbenthic communities associated with the reefs. Therefore, this is the first study which focuses on the effect of L. conchilega reefs on the entire bentho-pelagic community at two different locations. Environmental variables were measured and macro-, epi- and hyperbenthic communities were sampled within a L. conchilega reef and a control area at two locations in France: the bay of the Mont Saint-Michel (BMSM) and Boulogne-sur-Mer (Boulogne). The effect of the...
Tipo: Text
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00226/33764/32190.pdf
Imagem não selecionada

Imprime registro no formato completo
Consommation de la macrofaune benthique par les oiseaux d’eau. ArchiMer
Ponsero, Alain; Sturbois, Anthony; Simonin, Alicia; Godet, Laurent; Le Mao, Patrick.
The diversity and abundance of birds present in intertidal coastal ecosystems are closely related to the biomass of benthic invertebrates. The assessment of energy consumed compared with the available resource is one of the fundamental aspects of intertidal foodweb studies. The feeding of birds on benthic invertebrates was studied in the bay of Saint-Brieuc, a 2900 ha tidal bay located on the Côtes d’Armor coast (Brittany). The consumption of the nine most numerous wader and duck species present on the site was valued at 1.9 g AFDW/m²/yr. This is comparable with results observed in the Mont Saint-Michel bay but much lower than results from the Wadden sea. In order to further the understanding of the predator-prey system, the taking into account of local...
Tipo: Text
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00156/26688/24751.pdf
Imagem não selecionada

Imprime registro no formato completo
Ephemeral Bio-engineers or Reef-building Polychaetes: How Stable are Aggregations of the Tube Worm Lanice conchilega (Pallas, 1766)? ArchiMer
Callaway, Ruth; Desroy, Nicolas; Dubois, Stanislas; Fournier, Jerome; Frost, Matthew; Godet, Laurent; Hendrick, Vicki J.; Rabaut, Marijn.
Dense aggregations of tube-worms can stabilize sediments and generate oases for benthic communities that are different and often more diverse and abundant than those of the surroundings. If these features are to qualify as biogenic reefs under nature-conservation legislation such as the EC Habitats Directive, a level of stability and longevity is desirable aside from physical and biological attributes. Lanice conchilega (Pallas, 1766) is widely distributed around the European coast and aggregations of this tube-dwelling polychaete are known to have a positive effect on the biodiversity of associated species in inter- and sub-tidal areas. This increases the value of L. conchilega-rich habitats for higher trophic levels such as birds and fish. However, L....
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00011/12222/9284.pdf
Imagem não selecionada

Imprime registro no formato completo
Feeding grounds for waders in the Bay of the Mont Saint-Michel (France): the Lanice conchilega reef serves as an oasis in the tidal flats ArchiMer
De Smet, Bart; Godet, Laurent; Fournier, Jerome; Desroy, Nicolas; Jaffre, Mikael; Vincx, Magda; Rabaut, Marijn.
The tube-building polychaete Lanice conchilega can form dense populations, often called reefs, which promote benthic community change and constitute feeding grounds for secondary consumers. The aim of this study was to quantify the role of the L. conchilega reef of the Bay of the Mont Saint-Michel (BMSM) for feeding waders, by combining macrobenthos data, bird counts and bird diet information. Wader densities in the reef were on average 46.6 times higher than in non-reef areas. According to faecal analyses, waders in the reef mainly selected the accompanying fauna and especially crustaceans. The attractiveness of the reef to feeding birds may be largely explained by the high abundance, richness and biomass of macrobenthic species in the reef compared with...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00134/24556/22769.pdf
Imagem não selecionada

Imprime registro no formato completo
Influence of stability and fragmentation of a worm-reef on benthic macrofauna ArchiMer
Godet, Laurent; Fournier, Jerome; Jaffre, Mikael; Desroy, Nicolas.
In coastal areas, reef-builder worms often are bio-engineers by structuring their physical and biological environment. Many studies showed that this engineering role is determined by the densities of the engineer species itself, the highest densities approximately corresponding to the most stable areas from a sedimentological point of view, and hosting the richest and the most diverse benthic fauna. Here, we tested the potential influence of the spatio-temporal dynamics and the spatial fragmentation of one of the largest European intertidal reefs generated by the marine worm Lanice conchilega (Pallas, 1766) (Annelida, Polychaeta) on the associated benthic macrofauna. We demonstrated that the worm densities do have a significant positive role on the...
Tipo: Text Palavras-chave: Reefs; Zoobenthos; Stability; Fragmentation; Tidal flats; Bay of the Mont-Saint-Michel.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00044/15560/12973.pdf
Imagem não selecionada

Imprime registro no formato completo
Latitudinal Patterns in European Seagrass Carbon Reserves: Influence of Seasonal Fluctuations versus Short-Term Stress and Disturbance Events ArchiMer
Soissons, Laura M.; Haanstra, Eeke P.; Van Katwijk, Marieke M.; Asmus, Ragnhild; Auby, Isabelle; Barille, Laurent; Brun, Fernando G.; Cardoso, Patricia G.; Desroy, Nicolas; Fournier, Jerome; Ganthy, Florian; Garmendia, Joxe-mikel; Godet, Laurent; Grilo, Tiago F.; Kadel, Petra; Ondiviela, Barbara; Peralta, Gloria; Puente, Araceli; Recio, Maria; Rigouin, Loic; Valle, Mireia; Herman, Peter M. J.; Bouma, Tjeerd J..
Seagrass meadows form highly productive and valuable ecosystems in the marine environment. Throughout the year, seagrass meadows are exposed to abiotic and biotic variations linked to (i) seasonal fluctuations, (ii) short-term stress events such as, e.g., local nutrient enrichment, and (iii) small-scale disturbances such as, e.g., biomass removal by grazing. We hypothesized that short-term stress events and small-scale disturbances may affect seagrass chance for survival in temperate latitudes. To test this hypothesis we focused on seagrass carbon reserves in the form of starch stored seasonally in rhizomes, as these have been defined as a good indicator for winter survival. Twelve Zostera noltei meadows were monitored along a latitudinal gradient in...
Tipo: Text Palavras-chave: Carbon reserves; European Atlantic coast; Latitude; Resilience; Zostera noltei; Climate setting; Stress events.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00423/53420/54308.pdf
Imagem não selecionada

Imprime registro no formato completo
Marine invertebrate fauna of the Chausey archipelago: an annotated checklist of historical data from 1828 to 2008 ArchiMer
Godet, Laurent; Le Mao, Patrick; Grant, Cindy; Olivier, Frederic.
The first updated list of the marine invertebrate fauna of the Chausey archipelago (Normand-Breton Gulf, France) is presented. All publications regarding the natural history of the area, as well as the existing collections of marine invertebrates from 1828 to 2008 were examined. A total of 769 species (including 245 Arthropoda, 197 Mollusca, 146 Polychaeta), have been recorded in this area covering 5000 ha. This species richness is largely the result of the complexity of benthic habitatsof the archipelago and its long history of field work, dating back to the 19(th) Century. The historical data set of this region presents an opportunity to assess long-term changes in nearshore communities and to design conservation sites based on their scientific value.
Tipo: Text Palavras-chave: Chausey; Marine invertebrates; Inventory; Historical data.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00006/11696/8471.pdf
Registros recuperados: 7
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional