Évaluation de l'état de santé écologique des hydrosystèmes par l'utilisation des traits biologiques

Charvet, S.; Roger, M.C.; Faessel, B.; Lafont, M.

doi:10.1051/limn/1998036

Cited by 7 publications

(1 citation statement)

References 14 publications

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“…In practice, the use of functional groups is often favoured over indicator species since indices of species abundance are frequently subject to large interannual variation, often due to natural physical dynamics rather than anthropogenic stressors (de Jonge, 2007). On the contrary, indicators based on functional traits of key groups combined with information of species distributions in communities are in this respect more efficient and are becoming increasingly common (Bremner, 2008;Vandewalle et al, 2010;) in assessing, for example, community response to sewage pollution (Charvet et al, 1998;Tett et al, 2008), anoxia (Rakocinski, 2012), fishing (Bremner et al, 2004) and climate change (Beaugrand, 2005). Marine mammals, and particularly cetacean species, were found to be keystone species (B anaru et al, 2013), having, in spite of the relatively low biomass, a structuring role within the ecosystem and the food webs that interconnect.…”

Section: Discussionmentioning

confidence: 99%

An index based on the biodiversity of cetacean species to assess the environmental status of marine ecosystems

Azzellino

Fossi

Gaspari

et al. 2014

Marine Environmental Research

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Section: Discussionmentioning

confidence: 99%

An index based on the biodiversity of cetacean species to assess the environmental status of marine ecosystems

Azzellino

Fossi

Gaspari

et al. 2014

Marine Environmental Research

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Terrestrial and Aquatic Invertebrates as Bioindicators for Environmental Monitoring, with Particular Reference to Mountain Ecosystems

Hodkinson

Jackson

2005

Environmental Management

243

142

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The use of terrestrial and aquatic invertebrates as a management tool for monitoring change in ecosystems is reviewed and critically evaluated. Their suitability and value for assessing a range of environmental problems from pollution impacts, through habitat evaluation for conservation to the long-term degradation and recovery of ecosystems, is critically discussed. Guidelines are provided for the choice of appropriate bioindicators. Examples of the use of a broad spectrum of invertebrates to assess a variety of environmental problems are summarized. The particular potential of invertebrates for monitoring montane ecosystems is highlighted.

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Chironomidae traits and life history strategies as indicators of anthropogenic disturbance

Serra

Graça

Dolédec

et al. 2017

Environ Monit Assess

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In freshwater ecosystems, Chironomidae are currently considered indicators of poor water quality because the family is often abundant in degraded sites. However, it incorporates taxa with a large ecological and physiological diversity and different sensitivity to impairment. Yet, the usual identification of Chironomidae at coarse taxonomic levels (family or subfamily) masks genus and species sensitivities. In this study, we investigate the potential of taxonomic and functional (traits) composition of Chironomidae to detect anthropogenic disturbance. In this context, we tested some a priori hypotheses regarding the ability of Chironomidae taxonomic and trait compositions to discriminate Mediterranean streams affected by multiple stressors from least-disturbed streams. Both taxonomic and Eltonian trait composition discriminated sites according to their disturbance level. Disturbance resulted in the predicted increase of Chironomidae with higher number of stages with hibernation/diapause and of taxa with resistance forms and unpredicted increase of the proportion of taxa with longer life cycles and few generations per year. Life history strategies (LHS), corresponding to multivoltine Chironomidae that do not invest in hemoglobin and lack strong spring synchronization, were well adapted to all our Mediterranean sites with highly changeable environmental conditions. Medium-size animals favored in disturbed sites where the Mediterranean hydrological regime is altered, but the reduced number of larger-size/carnivore Chironomids suggests a limitation to secondary production. Results indicate that Chironomidae genus and respective traits could be a useful tool in the structural and functional assessment of Mediterranean streams. The ubiquitous nature of Chironomidae should be also especially relevant in the assessment of water bodies naturally poor in other groups such as the Ephemeroptera, Plecoptera, and Trichoptera, such as the lowland rivers with sandy substrates, lakes, or reservoirs.

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Évaluation de l'état de santé écologique des hydrosystèmes par l'utilisation des traits biologiques

Cited by 7 publications

References 14 publications

An index based on the biodiversity of cetacean species to assess the environmental status of marine ecosystems

An index based on the biodiversity of cetacean species to assess the environmental status of marine ecosystems

Terrestrial and Aquatic Invertebrates as Bioindicators for Environmental Monitoring, with Particular Reference to Mountain Ecosystems

Chironomidae traits and life history strategies as indicators of anthropogenic disturbance

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