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| Holon, Florian; Mouquet, Nicolas; Boissery, Pierre; Bouchoucha, Marc; Delaruelle, Gwenaelle; Tribot, Anne-sophie; Deter, Julie. |
| Ecosystem services provided by oceans and seas support most human needs but are threatened by human activities. Despite existing maps illustrating human impacts on marine ecosystems, information remains either large-scale but rough and insufficient for stakeholders (1 km² grid, lack of data along the coast) or fine-scale but fragmentary and heterogeneous in methodology. The objectives of this study are to map and quantify the main pressures exerted on near-coast marine ecosystems, at a large spatial scale though in fine and relevant resolution for managers (one pixel = 20 x 20 m). It focuses on the French Mediterranean coast (1,700 km of coastline including Corsica) at a depth of 0 to 80 m. After completing and homogenizing data presently available under... |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00275/38600/37129.pdf |
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| Tribot, Anne-sophie; Mouquet, Nicolas; Villeger, Sebastien; Raymond, Michel; Hoff, Fabrice; Boissery, Pierre; Holon, Florian; Deter, Julie. |
| The aesthetic value of landscapes contributes to human well-being. However, studies which have investigated the link between biodiversity and ecosystem services have not taken aesthetic value into account. In this study we evaluated how the aesthetics of coralligenous reefs, a key marine ecosystem in the Mediterranean, is perceived by the general public and how aesthetic preferences are related to biodiversity facets (taxonomic, phylogenetic and functional diversities). We performed both biodiversity measures and online-surveys of aesthetic perception on photographic quadrats sampled along the French Mediterranean coast. Our results show that species richness and functional richness have a significant positive effect on aesthetic value. Most of the... |
| Tipo: Text |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00354/46564/74442.pdf |
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| Boulanger, Emilie; Loiseau, Nicolas; Valentini, Alice; Arnal, Véronique; Boissery, Pierre; Dejean, Tony; Deter, Julie; Guellati, Nacim; Holon, Florian; Juhel, Jean-baptiste; Lenfant, Philippe; Manel, Stéphanie; Mouillot, David. |
| Although we are currently experiencing worldwide biodiversity loss, local species richness does not always decline under anthropogenic pressure. This conservation paradox may also apply in protected areas but has not yet received conclusive evidence in marine ecosystems. Here, we survey fish assemblages in six Mediterranean no-take reserves and their adjacent fishing grounds using environmental DNA (eDNA) while controlling for environmental conditions. We detect less fish species in marine reserves than in nearby fished areas. The paradoxical gradient in species richness is accompanied by a marked change in fish species composition under different managements. This dissimilarity is mainly driven by species that are often overlooked by classical visual... |
| Tipo: Text |
Palavras-chave: Environmental DNA metabarcoding; Marine reserves; Alpha and beta diversity. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00692/80374/83491.pdf |
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