| Enregistrements |
| Auteur |
Delrieu‐Trottin, E.; Durand, J.-D.; Limmon, G.; Sukmono, T.; Kadarusman; Sugeha, H.Y.; Chen, W.-J.; Busson, F.; Borsa, P.; Dahruddin, H.; Sauri, S.; Fitriana, Y.; Zein, M.S.A.; Hocdé, R.; Pouyaud, L.; Keith, P.; Wowor, D.; Steinke, D.; Hanner, R.; Hubert, N. |
Titre  |
Biodiversity inventory of the grey mullets (Actinopterygii: Mugilidae) of the Indo-Australian Archipelago through the iterative use of DNA-based species delimitation and specimen assignment methods |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Evolutionary Applications |
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Numéro |
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| Mots-Clés |
Coral Triangle; cryptic diversity; DNA barcoding; reference library; taxonomic gap |
| Résumé |
DNA barcoding opens new perspectives on the way we document biodiversity. Initially proposed to circumvent the limits of morphological characters to assign unknown individuals to known species, DNA barcoding has been used in a wide array of studies where collecting species identity constitutes a crucial step. The assignment of unknowns to knowns assumes that species are already well identified and delineated, making the assignment performed reliable. Here, we used DNA-based species delimitation and specimen assignment methods iteratively to tackle the inventory of the Indo-Australian Archipelago grey mullets, a notorious case of taxonomic complexity that requires DNA-based identification methods considering that traditional morphological identifications are usually not repeatable and sequence mislabeling is common in international sequence repositories. We first revisited a DNA barcode reference library available at the global scale for Mugilidae through different DNA-based species delimitation methods to produce a robust consensus scheme of species delineation. We then used this curated library to assign unknown specimens collected throughout the Indo-Australian Archipelago to known species. A second iteration of OTU delimitation and specimen assignment was then performed. We show the benefits of using species delimitation and specimen assignment methods iteratively to improve the accuracy of specimen identification and propose a workflow to do so. |
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en |
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1752-4571 |
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pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2729 |
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| Auteur |
Lacoste, E.; McKindsey, C.W.; Archambault, P. |
| Titre |
Biodiversity–Ecosystem Functioning (BEF) approach to further understanding aquaculture–environment interactions with application to bivalve culture and benthic ecosystems |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Reviews in Aquaculture |
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| Mots-Clés |
aquaculture–environment interactions; benthic system; biodiversity; ecosystem functioning; shellfish |
| Résumé |
Coastal benthic ecosystems may be impacted by numerous human activities, including aquaculture, which continues to expand rapidly. Indeed, today aquaculture worldwide provides more biomass for human consumption than do wild fisheries. This rapid development raises questions about the interactions the practice has with the surrounding environment. In order to design strategies of sustainable ecosystem exploitation and marine spatial planning, a better understanding of coastal ecosystem functioning is needed so that tools to quantify impacts of human activities, including aquaculture, may be developed. To achieve this goal, some possible directions proposed are integrated studies leading to new concepts, model development based on these concepts and comparisons of various ecosystems on a global scale. This review draws on existing literature to (i) briefly summarize the major ecological interactions between off-bottom shellfish aquaculture and the environment, (ii) introduce research on the influence of benthic diversity on ecosystem functioning (BEF relationships) and (iii) propose a holistic approach to conduct aquaculture–environment studies using a BEF approach, highlighting the need for integrated studies that could offer insights and perspectives to guide future research efforts and improve the environmental management of aquaculture. |
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en |
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| ISSN |
1753-5131 |
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WOS:000514024900001 |
Approuvé |
pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2720 |
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| Auteur |
Barnagaud, J.-Y.; Kissling, W.D.; Tsirogiannis, C.; Fisikopoulos, V.; Villeger, S.; Sekercioglu, C.H.; Svenning, J.-C. |
| Titre |
Biogeographical, environmental and anthropogenic determinants of global patterns in bird taxonomic and trait turnover |
Type |
Article scientifique |
| Année |
2017 |
Publication |
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Revue Abrégée |
Glob. Ecol. Biogeogr. |
| Volume |
26 |
Numéro |
10 |
Pages |
1190-1200 |
| Mots-Clés |
Anthropocene; Beta diversity; Beta-diversity; biogeographical legacies; biotic homogenization; climate changes; community; components; dispersal; functional diversity; functional diversity; life-history traits; mammal assemblages; net primary production; regional assemblages; specialization; species richness |
| Résumé |
AimTo assess contemporary and historical determinants of taxonomic and ecological trait turnover in birds worldwide. We tested whether taxonomic and trait turnover (1) are structured by regional bioclimatic conditions, (2) increase in relationship with topographic heterogeneity and environmental turnover and change according to current and historical environmental conditions, and (3) decrease with human impact. Major TaxaBirds. LocationGlobal. MethodsWe used computationally efficient algorithms to map the taxonomic and trait turnover of 8,040 terrestrial bird assemblages worldwide, based on a grid with 110km x 110 km resolution overlaid on the extent-of-occurrence maps of 7,964 bird species, and nine ecological traits reflecting six key aspects of bird ecology (diet, habitat use, thermal preference, migration, dispersal and body size). We used quantile regression and model selection to quantify the influence of biomes, environment (temperature, precipitation, altitudinal range, net primary productivity, Quaternary temperature and precipitation change) and human impact (human influence index) on bird turnover. ResultsBird taxonomic and trait turnover were highest in the north African deserts and boreal biomes. In the tropics, taxonomic turnover tended to be higher, but trait turnover was lower than in other biomes. Taxonomic and trait turnover exhibited markedly different or even opposing relationships with climatic and topographic gradients, but at their upper quantiles both types of turnover decreased with increasing human influence. Main conclusionsThe influence of regional, environmental and anthropogenic factors differ between bird taxonomic and trait turnover, consistent with an imprint of niche conservatism, environmental filtering and topographic barriers on bird regional assemblages. Human influence on these patterns is pervasive and demonstrates global biotic homogenization at a macroecological scale. |
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English |
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1466-822x |
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Approuvé |
pas de |
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MARBEC @ alain.herve @ |
collection |
2212 |
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| Auteur |
Oikonomou, A.; Leprieur, F.; Leonardos, I.D. |
| Titre |
Biogeography of freshwater fishes of the Balkan Peninsula |
Type |
Article scientifique |
| Année |
2014 |
Publication |
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Revue Abrégée |
Hydrobiologia |
| Volume |
738 |
Numéro |
1 |
Pages |
205-220 |
| Mots-Clés |
Balkan Peninsula; Beta diversity; Bioregionalisation; Conservation biogeography; Vulnerability; ancient lakes; biodiversity conservation; endemism; freshwater fish; global patterns; mitochondrial-dna sequences; north-america; phylogeography; species richness |
| Résumé |
Delineating biogeographical regions is a critical step towards the establishment and evaluation of conservation priorities. In the present study, we analysed the distribution patterns of the freshwater fish of an understudied European biodiversity hotspot, the Balkan Peninsula. Based on the most extensive available database of native freshwater fish species distributions, we performed a hierarchical clustering analysis to identify the major biogeographical regions of the Balkan Peninsula. We also highlighted the 'hottest hotspots' of freshwater fish diversity across the delimited biogeographical regions by describing the patterns of species richness, endemic and vulnerable species; indicator species were also determined. The bioregionalisation scheme consisted of eight groups of drainage basins that correspond to distinct regions of the Balkan Peninsula. Overall, the delineated biogeographical regions varied in terms of species richness, endemism, vulnerability (i.e. extinction threats) and indicator species composition. From a conservation perspective, this study emphasises the prioritisation of areas characterised by high levels of irreplaceability (endemism) and vulnerability (i.e. the Attikobeotia region, Ionian Sea and Prespa Lakes) and stresses the necessity of implementing a network of protected freshwater areas across the Balkan Peninsula. |
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English |
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0018-8158 |
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pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
454 |
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Magris, R.A.; Andrello, M.; Pressey, R.L.; Mouillot, D.; Dalongeville, A.; Jacobi, M.N.; Manel, S. |
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Biologically representative and well-connected marine reserves enhance biodiversity persistence in conservation planning |
Type |
Article scientifique |
| Année |
2018 |
Publication |
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Revue Abrégée |
Conserv. Lett. |
| Volume |
11 |
Numéro |
4 |
Pages |
Unsp-e12439 |
| Mots-Clés |
biodiversity conservation; climate-change; coral-reefs; design; larval dispersal; marine protected areas; marine reserve design; networks; population connectivity; protected areas; spatial planning; spatial prioritization |
| Résumé |
Current methods in conservation planning for promoting the persistence of biodiversity typically focus on either representing species geographic distributions or maintaining connectivity between reserves, but rarely both, and take a focal species, rather than a multispecies, approach. Here, we link prioritization methods with population models to explore the impact of integrating both representation and connectivity into conservation planning for species persistence. Using data on 288 Mediterranean fish species with varying conservation requirements, we show that: (1) considering both representation and connectivity objectives provides the best strategy for enhanced biodiversity persistence and (2) connectivity objectives were fundamental to enhancing persistence of small-ranged species, which are most in need of conservation, while the representation objective benefited only wide-ranging species. Our approach provides a more comprehensive appraisal of planning applications than approaches focusing on either representation or connectivity, and will hopefully contribute to build more effective reserve networks for the persistence of biodiversity. |
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English |
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Numéro de collection |
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Edition |
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1755-263x |
ISBN |
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Médium |
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Expédition |
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Approuvé |
pas de |
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MARBEC @ alain.herve @ |
collection |
2423 |
| Lien permanent pour cet enregistrement |
