Ability of taxonomic diversity indices to discriminate coastal lagoon environments based on macrophyte communities

Mouillot, David; Gaillard, Sylvain; Aliaume, Catherine; Verlaque, Marc; Belsher, Thomas; Troussellier, Marc; Do, Thang

doi:10.1016/j.ecolind.2004.04.004

Cited by 101 publications

(61 citation statements)

References 57 publications

(56 reference statements)

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“…There has been increasing evidence that the taxonomic distinctness measures present an apparent insensitivity to sampling effort and sample size compared with traditional biodiversity measures Mouillot et al, 2005;Clarke & Gorley, 2006;Leonard et al, 2006;Prato et al, 2009). Furthermore, the taxonomic distinctness indices have a number of desirable properties as a measure of biodiversity in assessment of environmental stress, especially if coupled with a statistical framework for the assessment of the significance of departure from expectation (Warwick & Clarke, 1995Mouillot et al, 2005;Clarke & Gorley, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the taxonomic distinctness indices have a number of desirable properties as a measure of biodiversity in assessment of environmental stress, especially if coupled with a statistical framework for the assessment of the significance of departure from expectation (Warwick & Clarke, 1995Mouillot et al, 2005;Clarke & Gorley, 2006). Many previous researches on metazoan fauna have demonstrated that the taxonomic distinctness measures showed less sensitivity to natural habitat type but more to anthropogenic impacts (Mouillot et al, 2005; Leonard et al, 2006). Based on our present data, the average taxonomic distinctness of protozoan communities was significantly correlated with pollution/ eutrophication levels in flowing waters.…”

Section: Discussionmentioning

confidence: 99%

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An approach to analyzing taxonomic patterns of protozoan communities for monitoring water quality in Songhua River, northeast China

Tan

Shi

Liu³

et al. 2009

Hydrobiologia

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Taxonomic patterns of protozoan community structure for monitoring water quality were studied from May to September 2003 in Songhua River, northeast China. Protozoan communities were sampled monthly using PFU (polyurethane foam unit) method at the four stations with different pollution/ eutrophication levels. Physical-chemical parameters (e.g., water temperature, dissolved oxygen (DO), pH, biological oxygen demand (BOD 5 ), chemical oxygen demand (COD), ammonium nitrogen (NH 4 -N), and nitrate nitrogen (NO 3 -N) were measured synchronously for comparison with biotic parameters. A total of 53 protozoan taxa with nine common species were identified comprising 33 ciliates, 17 flagellates, 3 sarcodines. Multivariate analyses demonstrated that the spatial taxonomic patterns of protozoan communities significantly correlated with environmental conditions, especially related to the concentrations of COD, BOD 5 , NO 3 -N, and NH 4 -N, either alone or in combination with one another. Although species richness was found to be independent of physicalchemical parameters, the average taxonomic distinctness (D ? ) were positively significantly correlated with the concentration of dissolved oxygen and NO 3 -N, but negatively with COD and BOD 5 . It is suggested that spatial pattern of protozoan communities and taxonomic biodiversity can be used in assessing water quality of flowing river systems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

An approach to analyzing taxonomic patterns of protozoan communities for monitoring water quality in Songhua River, northeast China

Tan

Shi

Liu³

et al. 2009

Hydrobiologia

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“…Clearly, our results imply that both the magnitude and the seasonality of seafloor POC flux impact the average taxonomic distinctness within nematode communities, which may be translated to a greater functional distinctness. However, since taxonomic distinctness may be governed by a variety of factors, such as biogeography, environmental factors, habitat characteristics, and stress (Bevilacqua et al, 2012;Leira et al, 2009;Mouillot et al, 2005;Clarke, 1995, 1998;Xu et al, 2011), more research into life history strategies, niche requirements and taxon interactions are needed to fully understand the patterns observed here. Unlike Leduc et al (2011) (nematode species and genera) and Etter and Grassle (1992) (macrofaunal species), we did not detect an effect of sediment heterogeneity (SED) on nematode genus diversity.…”

Section: Environmental Drivers Of Nematode Diversitymentioning

confidence: 99%

Unravelling the environmental drivers of deep-sea nematode biodiversity and its relation with carbon mineralisation along a longitudinal primary productivity gradient

Pape¹,

Bezerra²,

Jones

et al. 2013

Biogeosciences

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Alongside a primary productivity gradient between the Galicia Bank region in the Northeast Atlantic and the more oligotrophic eastern Mediterranean Basin, we investigated the bathymetric (1200–3000 m) and longitudinal variation in several measures for nematode taxon (Shannon–Wiener genus diversity, expected genus richness and generic evenness) and functional diversity (trophic diversity, diversity of life history strategies, biomass diversity and phylogenetic diversity). Our goals were to establish the form of the relation between diversity and productivity (measured as seafloor particulate organic carbon or POC flux), and to verify the positive and negative effect of sediment particle size diversity (SED) and the seasonality in POC flux (SVI), respectively, on diversity, as observed for other oceanographic regions and taxa. In addition, we hypothesised that higher taxon diversity is associated with higher functional diversity, which in turn stimulates nematode carbon mineralisation rates (determined from biomass-dependent respiration estimates). Taxon diversity related positively to seafloor POC flux. Phylogenetic diversity (measured as average taxonomic distinctness) was affected negatively by the magnitude and variability in POC flux, and positively by SED. The latter also showed an inverse relation with trophic diversity. Accounting for differences in total biomass between samples, we observed a positive linear relation between taxon diversity and carbon mineralisation in nematode communities. We could, however, not identify the potential mechanism through which taxon diversity may promote this ecosystem function since none of the functional diversity indices related to both diversity and nematode respiration. The present results suggest potential effects of climate change on deep-sea ecosystem functioning, but further also emphasise the need for a better understanding of nematode functions and their response to evolutionary processes

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“…They show similar annual ranges in water temperatures (between 2 to 5 and 26 to 30°C, with a common meañ 17°C) and all have higher annual productivity levels and, from May to October, 1 to 5°C higher water temperatures than the sea (Table 1). Yet they differ in the chemical composition of their water masses because of different continental and marine influences, anthropogenic loads, and catchment areas (Mouillot et al 2005a). …”

Section: Study Areamentioning

confidence: 99%

Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

Mercier¹,

Mouillot²,

Bruguier³

et al. 2012

Mar. Ecol. Prog. Ser.

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Precise knowledge of lifetime migrations is vital in exploited fish species, since all essential habitats must be protected to maintain sustainable stock levels. The present study used multi-element otolith fingerprints of the gilthead sea bream Sparus aurata (L.) to discriminate its main juvenile and adult habitats in the Languedoc-Roussillon region (Gulf of Lions, northwest Mediterranean) and infer the lifetime migrations of 12 individuals from the area (11 from the present day and 1 from the Roman era). This allowed for the first time the identification of key habitats for the successful completion of the species' life cycle in the Gulf of Lions, and the connectivity between them. Our results revealed that lagoon use by S. aurata is probably ancient (> 2500 yr) and confirmed its current commonness. Yet, although most observed migration patterns were in accordance with the migratory behavior previously described for the species, strong inter-individual variations and new patterns in habitat use were detected. At the juvenile stage, a preference for shallow lagoons with low salinities was evidenced. Nevertheless, the first year of life can also be successfully completed in marine conditions. At the adult stage, lagoon use was shown to occur until at least age 4 yr, with periods of lagoon residency of up to 11 mo in a year, often including winter months. Because overwintering in the lagoons was previously thought to be impossible for S. aurata due to low temperatures, this finding has important implications for future stock management, especially since the species breeds in winter. KEY WORDS: Otolith microchemistry · Trace elements · Random forest · Key habitats · Gulf of LionsResale or republication not permitted without written consent of the publisher

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Ability of taxonomic diversity indices to discriminate coastal lagoon environments based on macrophyte communities

Cited by 101 publications

References 57 publications

An approach to analyzing taxonomic patterns of protozoan communities for monitoring water quality in Songhua River, northeast China

An approach to analyzing taxonomic patterns of protozoan communities for monitoring water quality in Songhua River, northeast China

Unravelling the environmental drivers of deep-sea nematode biodiversity and its relation with carbon mineralisation along a longitudinal primary productivity gradient

Multi-element otolith fingerprints unravel sea−lagoon lifetime migrations of gilthead sea bream Sparus aurata

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