Consulta: creatorFacets:"Mouillot, D"
Registros recuperados: 4
Data/hora: 01/06/2024 17:37:46

Alternatives to taxonomic-based approaches to assess changes in transitional water communities
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Mouillot, D; Spatharis, S; Reizopoulou, S; Laugier, Thierry; Sabetta, L; Basset, A; Chi, T.
1. Transitional waters, described as critical transition zones because of their position at terrestrial, freshwater and marine interfaces, provide essential goods and services to the biosphere including human populations. These ecotones face increasing human influence mainly due to population density increase in coastal areas.   2. Transitional water bodies have, to date, received little attention in the development of ecological status indicators, this is a critical deficiency when trying to meet the Water Framework Directive objective of all significant water bodies achieving good ecological status by the year 2015.   3. In order to assess changes in transitional water communities many taxonomic-based indicators have already been proposed but there are a...
Tipo: Text
Palavras-chave: Biotic descriptors; Productivity; Functional diversity; Functional traits; Body size; Water Framework Directive WFD.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1849.pdf

Connectance and parasite diet breadth in flea-mammal webs
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Mouillot, D; Krasnov, B; Shenbrot, G; Poulin, R.
The number of links in webs of species interactions, which lies at the heart of the biodiversity-stability debate, has given rise to controversy during the last 20 yr. Studies exploring these web properties have mainly focused on symmetric webs where each species can potentially feed on any other species; asymmetric webs such as host-parasite webs, where one set of species feed on another set of species, have been overlooked. However, food webs are incomplete without parasites and the study of parasite-host sub-web properties deserves attention. Here, using a large database involving 33 regional interaction webs between mammals and their flea parasites, we found a negative relationship between species richness and host-parasite connectance. We suggest that...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3750.pdf

Towards an optimal sampling strategy for Alexandrium catenella (Dinophyceae) benthic resting cysts
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Genovesi, B; Mouillot, D; Vaquer, A; Laabir, M; Pastoureaud, Annie.
The study proposes methodological developments to optimize sampling strategy of resting cysts of Alexandrium catenella to estimate their abundance with a predefined error. This work also aims to provide information on spatial distribution of resting cysts in sediments. The distribution mode of A. catenella resting cysts related to the abundance variability was studied through sediment cores sampling on four different spatial scales and using Ludox CLX gradient density method. The quantification method underestimates by a factor of 2 the resting cysts abundance in one gram of sediment. Application of Taylor's power law allowed us to define a compromise between sampling effort and abundance estimation error. In the case of A. catenella resting cysts from...
Tipo: Text
Palavras-chave: Vertical profiles; Spatial distribution; Optimum sample size; Resting cyst; Toxic dinoflagellate; Alexandrium catenella.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3579.pdf

Do we protect biological originality in protected areas? A new index and an application to the Bonifacio Strait Natural Reserve
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Mouillot, D; Culioli, J; Pelletier, Dominique; Tomasini, J.
Changes in biodiversity may disrupt the ecological functions performed by species assemblages. Hence, we urgently need to examine the implications of biodiversity loss not only in terms of species conservation but also in terms of sustainability of ecosystem services. The ability of protected areas to maintain local species richness has been clearly demonstrated. However, preserving goods and services provided by ecosystems requires not only the conservation of species richness but also the conservation of the most 'original' species, i.e. the ones with the highest average rarity of their attributes which are likely to perform some unique functions in ecosystems. We proposed a new conservation of biological originality (CBO) index as well as associated...
Tipo: Text
Palavras-chave: Biological indicator; Indicator species; Fish assemblage; Randomization test; Functional originality; Functional trait; Marine reserve.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4480.pdf