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| Registros recuperados: 66 | |
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| Andrello, Marco; Guilhaumon, Francois; Albouy, Camille; Parravicini, Valeriano; Scholtens, Joeri; Verley, Philippe; Barange, Manuel; Sumaila, U. Rashid; Manel, Stephanie; Mouillot, David. |
| Marine reserves are viewed as flagship tools to protect exploited species and to contribute to the effective management of coastal fisheries. Yet, the extent to which marine reserves are globally interconnected and able to effectively seed areas, where fisheries are most critical for food and livelihood security is largely unknown. Using a hydrodynamic model of larval dispersal, we predict that most marine reserves are not interconnected by currents and that their potential benefits to fishing areas are presently limited, since countries with high dependency on coastal fisheries receive very little larval supply from marine reserves. This global mismatch could be reversed, however, by placing new marine reserves in areas sufficiently remote to minimize... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00392/50319/50997.pdf |
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| Loiseau, Nicolas; Mouquet, Nicolas; Casajus, Nicolas; Grenie, Matthias; Gueguen, Maya; Maitner, Brian; Mouillot, David; Ostling, Annette; Renaud, Julien; Tucker, Caroline; Velez, Laure; Thuiller, Wilfried; Violle, Cyrille. |
| Identifying species that are both geographically restricted and functionally distinct, i.e. supporting rare traits and functions, is of prime importance given their risk of extinction and their potential contribution to ecosystem functioning. We use global species distributions and functional traits for birds and mammals to identify the ecologically rare species, understand their characteristics, and identify hotspots. We find that ecologically rare species are disproportionately represented in IUCN threatened categories, insufficiently covered by protected areas, and for some of them sensitive to current and future threats. While they are more abundant overall in countries with a low human development index, some countries with high human development... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00657/76892/78052.pdf |
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| Letessier, Tom B.; Mouillot, David; Bouchet, Phil J.; Vigliola, Laurent; Fernandes, Marjorie C.; Thompson, Chris; Boussarie, Germain; Turner, Jemma; Juhel, Jean-baptiste; Maire, Eva; Caley, M. Julian; Koldewey, Heather J.; Friedlander, Alan; Sala, Enric; Meeuwig, Jessica J.. |
| Since the 1950s, industrial fisheries have expanded globally, as fishing vessels are required to travel further afield for fishing opportunities. Technological advancements and fishery subsidies have granted ever-increasing access to populations of sharks, tunas, billfishes, and other predators. Wilderness refuges, defined here as areas beyond the detectable range of human influence, are therefore increasingly rare. In order to achieve marine resources sustainability, large no-take marine protected areas (MPAs) with pelagic components are being implemented. However, such conservation efforts require knowledge of the critical habitats for predators, both across shallow reefs and the deeper ocean. Here, we fill this gap in knowledge across the Indo-Pacific... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00509/62107/66283.pdf |
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| Mouillot, David; Velez, Laure; Maire, Eva; Masson, Alizée; Hicks, Christina C.; Moloney, James; Troussellier, Marc. |
| Many islands are biodiversity hotspots but also extinction epicenters. In addition to strong cultural connections to nature, islanders derive a significant part of their economy and broader wellbeing from this biodiversity. Islands are thus considered as the socio-ecosystems most vulnerable to species and habitat loss. Yet, the extent and key correlates of protected area coverage on islands is still unknown. Here we assess the relative influence of climate, geography, habitat diversity, culture, resource capacity, and human footprint on terrestrial and marine protected area coverage across 2323 inhabited islands globally. We show that, on average, 22% of terrestrial and 13% of marine island areas are under protection status, but that half of all islands... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/76034/76949.pdf |
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| Mazel, Florent; Pennell, Matthew W.; Cadotte, Marc W.; Diaz, Sandra; Dalla Riva, Giulio Valentino; Grenyer, Richard; Leprieur, Fabien; Mooers, Arne O.; Mouillot, David; Tucker, Caroline M.; Pearse, William D.. |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00626/73772/75175.pdf |
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| Hadj-hammou, Jeneen; Mouillot, David; Graham, Nicholas A. J.. |
| The response-and-effect framework is a trait-based approach that seeks to break down the mechanistic links between ecosystem disturbances, species' traits, and ecosystem processes. We apply this framework to a review of the literature on coral reef fish traits, in order to illustrate the research landscape and structure a path forward for the field. Traits were categorized into five broad groupings: behavioral, life history, morphological, diet, and physiological. Overall, there are fewer studies linking effect traits to ecosystem processes (number of papers on herbivory, n = 14; predation, n = 12; bioerosion, n = 2; nutrient cycling, n = 0) than there are linking response traits to disturbances (climate change, n = 26; fishing, n = 20; pollution, n = 4).... |
| Tipo: Text |
Palavras-chave: Ecosystem processes; Environmental disturbances; Functional diversity; Coral reef ecology; Ecosystem function; Trait-based ecology; Systematic review. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/79975/82919.pdf |
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| Escalas, Arthur; Bouvier, Thierry; Mouchet, Maud A.; Leprieur, Fabien; Bouvier, Corinne; Troussellier, Marc; Mouillot, David. |
| Recent developments of molecular tools have revolutionized our knowledge of microbial biodiversity by allowing detailed exploration of its different facets and generating unprecedented amount of data. One key issue with such large datasets is the development of diversity measures that cope with different data outputs and allow comparison of biodiversity across different scales. Diversity has indeed three components: local (), regional () and the overall difference between local communities (). Current measures of microbial diversity, derived from several approaches, provide complementary but different views. They only capture the component of diversity, compare communities in a pairwise way, consider all species as equivalent or lack a mathematically... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00163/27441/25668.pdf |
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| Mazel, Florent; Renaud, Julien; Guilhaumon, Francois; Mouillot, David; Gravel, Dominique; Thuiller, Wilfried. |
| In analogy to the species-area relationship (SAR), one of the few laws in ecology, the phylogenetic diversity-area relationship (PDAR) describes the tendency of phylogenetic diversity (PD) to increase with area. Although investigating PDAR has the potential to unravel the underlying processes shaping assemblages across spatial scales and to predict PD loss through habitat reduction, it has been little investigated so far. Focusing on PD has noticeable advantages compared to species richness (SR), since PD also gives insights on processes such as speciation/extinction, assembly rules and ecosystem functioning. Here we investigate the universality and pervasiveness of the PDAR at continental scale using terrestrial mammals as study case. We define the... |
| Tipo: Text |
Palavras-chave: Conservation biogeography; Habitat loss; Null models; Phylogenetic diversity; Species-area relationship; Strict nested design. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00610/72248/71049.pdf |
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| Leprieur, Fabien; Albouy, Camille; De Bortoli, Julien; Cowman, Peter F.; Bellwood, David R.; Mouillot, David. |
| he evolutionary dissimilarity between communities (phylogenetic beta diversity PBD) has been increasingly explored by ecologists and biogeographers to assess the relative roles of ecological and evolutionary processes in structuring natural communities. Among PBD measures, the PhyloSor and UniFrac indices have been widely used to assess the level of turnover of lineages over geographical and environmental gradients. However, these indices can be considered as ‘broad-sense’ measures of phylogenetic turnover as they incorporate different aspects of differences in evolutionary history between communities that may be attributable to phylogenetic diversity gradients. In the present study, we extend an additive partitioning framework proposed for compositional... |
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| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00391/50284/50916.pdf |
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| Leprieur, Fabien; Colosio, Simona; Descombes, Patrice; Parravicini, Valeriano; Kulbicki, Michel; Cowman, Peter F.; Bellwood, David R.; Mouillot, David; Pellissier, Loic. |
| Identifying the main determinants of tropical marine biodiversity is essential for devising appropriate conservation measures mitigating the ongoing degradation of coral reef habitats. Based on a gridded distribution database and phylogenetic information, we compared the phylogenetic structure of assemblages for three tropical reef fish families (Labridae: wrasses, Pomacentridae: damselfishes and Chaetodontidae: butterflyfishes) using the net relatedness (NRI) and nearest taxon (NTI) indices. We then related these indices to contemporary and historical environmental conditions of coral reefs using spatial regression analyses. Higher levels of phylogenetic clustering were found for fish assemblages in the Indo-Australian Archipelago (IAA), and more... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00354/46492/74253.pdf |
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| Cazelles, Kevin; Mouquet, Nicolas; Mouillot, David; Gravel, Dominique. |
| Biogeography is primarily concerned with the spatial distribution of biodiversity, including performing scenarios in a changing environment. The efforts deployed to develop species distribution models have resulted in predictive tools, but have mostly remained correlative and have largely ignored biotic interactions. Here we build upon the theory of island biogeography as a first approximation to the assembly dynamics of local communities embedded within a metacommunity context. We include all types of interactions and introduce environmental constraints on colonization and extinction dynamics. We develop a probabilistic framework based on Markov chains and derive probabilities for the realization of species assemblages, rather than single species... |
| Tipo: Text |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00611/72313/71169.pdf |
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| Mazel, Florent; Pennell, Matthew W.; Cadotte, Marc W.; Diaz, Sandra; Dalla Riva, Giulio Valentino; Grenyer, Richard; Leprieur, Fabien; Mooers, Arne O.; Mouillot, David; Tucker, Caroline M.; Pearse, William D.. |
| In the face of the biodiversity crisis, it is argued that we should prioritize species in order to capture high functional diversity (FD). Because species traits often reflect shared evolutionary history, many researchers have assumed that maximizing phylogenetic diversity (PD) should indirectly capture FD, a hypothesis that we name the "phylogenetic gambit". Here, we empirically test this gambit using data on ecologically relevant traits from >15,000 vertebrate species. Specifically, we estimate a measure of surrogacy of PD for FD. We find that maximizing PD results in an average gain of 18% of FD relative to random choice. However, this average gain obscures the fact that in over one-third of the comparisons, maximum PD sets contain less FD than... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00626/73780/74960.pdf |
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| Marques, Virginie; Milhau, Tristan; Albouy, Camille; Dejean, Tony; Manel, Stéphanie; Mouillot, David; Juhel, Jean‐baptiste; Dutta, Trishna. |
| Aim Environmental DNA metabarcoding has recently emerged as a non‐invasive tool for aquatic biodiversity inventories, frequently surpassing traditional methods for detecting a wide range of taxa in most habitats. The major limitation currently impairing the large‐scale application of eDNA‐based inventories is the lack of species sequences available in public genetic databases. Unfortunately, these gaps are still unknown spatially and taxonomically, hindering targeted future sequencing efforts. Innovation We propose GAPeDNA, a user‐friendly web interface that provides a global overview of genetic database completeness for a given taxon across space and conservation status. As an application, we synthetized data from regional checklists for marine and... |
| Tipo: Text |
Palavras-chave: Environmental DNA; Genetic markers; IUCN; Marine and freshwater fish; Non‐indigenous species; Reference database; Shiny; Threatened species. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/79976/82921.pdf |
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| Mclean, Matthew J.; Mouillot, David; Goascoz, Nicolas; Schlaich, Ivan; Auber, Arnaud. |
| While climate change is rapidly impacting marine species and ecosystems worldwide, the effects of climate warming on coastal fish nurseries have received little attention despite nurseries’ fundamental roles in recruitment and population replenishment. Here, we used a 26‐year time series (1987–2012) of fish monitoring in the Bay of Somme, a nursery in the Eastern English Channel (EEC), to examine the impacts of environmental and human drivers on the spatial and temporal dynamics of fish functional structure during a warming phase of the Atlantic Multidecadal Oscillation (AMO). We found that the nursery was initially dominated by fishes with r‐selected life‐history traits such as low trophic level, low age and size at maturity, and small offspring, which... |
| Tipo: Text |
Palavras-chave: Atlantic Multidecadal Oscillation; Climate change; Ecosystem function; English Channel; Fisheries; Functional traits; Life history; Recruitment. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00471/58276/60818.pdf |
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| Mclean, Matthew; Auber, Arnaud; Graham, Nicholas A J; Houk, Peter; Villéger, Sébastien; Violle, Cyrille; Thuiller, Wilfried; Wilson, Shaun K.; Mouillot, David. |
| ‘Functional’ diversity is believed to influence ecosystem dynamics through links between organismal traits and ecosystem processes. Theory predicts that key traits and high trait redundancy – large species richness and abundance supporting the same traits – can buffer communities against environmental disturbances. While experiments and data from simple ecological systems lend support, large‐scale evidence from diverse, natural systems under major disturbance is lacking. Here, using long‐term data from both temperate (English Channel) and tropical (Seychelles Islands) fishes, we show that sensitivity to disturbance depends on communities’ initial trait structure and initial trait redundancy. In both ecosystems, we found that increasing dominance by... |
| Tipo: Text |
Palavras-chave: Climate change; Coral reefs; Diversity stability; Ecological traits; Ecosystem functioning; English Channel; Functional diversity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00490/60184/63525.pdf |
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| D'Agata, Stephanie; Vigliola, Laurent; Graham, Nicholas A. J.; Wantiez, Laurent; Parravicini, Valeriano; Villeger, Sebastien; Gerard Mou-tham,; Frolla, Philippe; Friedlander, Alan M.; Kulbicki, Michel; Mouillot, David. |
| High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might performunique functional roles while others are redundant. Thus, the benefits of high species richness in maintaining ecosystem functioning are uncertain if functions have little redundancy, potentially leading to high vulnerability of functions. We studied the natural propensity of assemblages to be functionally buffered against loss prior to fishing activities, using functional trait combinations, in coral reef fish assemblages across unfished wilderness areas of the Indo-Pacific: Chagos Archipelago, New Caledonia and French Polynesia. Fish functional diversity in these wilderness areas is highly... |
| Tipo: Text |
Palavras-chave: Coral reef fish; Wilderness areas; Redundancy; Baseline functional vulnerability. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00366/47680/68025.pdf |
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| Jeliazkov, Alienor; Mijatovic, Darko; Chantepie, Stéphane; Andrew, Nigel; Arlettaz, Raphaël; Barbaro, Luc; Barsoum, Nadia; Bartonova, Alena; Belskaya, Elena; Bonada, Núria; Brind'Amour, Anik; Carvalho, Rodrigo; Castro, Helena; Chmura, Damian; Choler, Philippe; Chong-seng, Karen; Cleary, Daniel; Cormont, Anouk; Cornwell, William; De Campos, Ramiro; De Voogd, Nicole; Doledec, Sylvain; Drew, Joshua; Dziock, Frank; Eallonardo, Anthony; Edgar, Melanie J.; Farneda, Fábio; Hernandez, Domingo Flores; Frenette-dussault, Cédric; Fried, Guillaume; Gallardo, Belinda; Gibb, Heloise; Gonçalves-souza, Thiago; Higuti, Janet; Humbert, Jean-yves; Krasnov, Boris R.; Saux, Eric Le; Lindo, Zoe; Lopez-baucells, Adria; Lowe, Elizabeth; Marteinsdottir, Bryndis; Martens, Koen; Meffert, Peter; Mellado-díaz, Andres; Menz, Myles H. M.; Meyer, Christoph F. J.; Miranda, Julia Ramos; Mouillot, David; Ossola, Alessandro; Pakeman, Robin; Pavoine, Sandrine; Pekin, Burak; Pino, Joan; Pocheville, Arnaud; Pomati, Francesco; Poschlod, Peter; Prentice, Honor C.; Purschke, Oliver; Raevel, Valerie; Reitalu, Triin; Renema, Willem; Ribera, Ignacio; Robinson, Natalie; Robroek, Bjorn; Rocha, Ricardo; Shieh, Sen-her; Spake, Rebecca; Staniaszek-kik, Monika; Stanko, Michal; Tejerina-garro, Francisco Leonardo; Braak, Cajo Ter; Urban, Mark C.; Klink, Roel Van; Villéger, Sébastien; Wegman, Ruut; Westgate, Martin J.; Wolff, Jonas; Żarnowiec, Jan; Zolotarev, Maxim; Chase, Jonathan M.. |
| The use of functional information in the form of species traits plays an important role in explaining biodiversity patterns and responses to environmental changes. Although relationships between species composition, their traits, and the environment have been extensively studied on a case-by-case basis, results are variable, and it remains unclear how generalizable these relationships are across ecosystems, taxa and spatial scales. To address this gap, we collated 80 datasets from trait-based studies into a global database for metaCommunity Ecology: Species, Traits, Environment and Space; “CESTES”. Each dataset includes four matrices: species community abundances or presences/absences across multiple sites, species trait information, environmental... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00604/71606/70047.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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| Maire, Eva; D'Agata, Stephanie; Aliaume, Catherine; Mouillot, David; Darling, Emily S.; Ramahery, Volanirina; Ranaivoson, Ravaka; Randriamanantsoa, Bemahafaly; Tianarisoa, Tantely F.; Santisy, Abdoul; Cinner, Joshua E.. |
| Rapid degradation of the world’s coral reefs jeopardizes their ecological functioning and ultimately imperils the wellbeing of the millions of people with reef-dependent livelihoods. Ecosystem accessibility is the main driver of their conditions, with the most accessible ecosystems being most at risk of resource depletion. People’s socioeconomic conditions can change as they get further from urban centers and can profoundly influence people’s relationship with the environment. However, the mechanisms through which increasing accessibility from human societies affects natural resources are still unclear. A plausible mechanism through which markets influence the environment is through the socioeconomic changes that tend to accompany accessibility. We used... |
| Tipo: Text |
Palavras-chave: Accessibility; Coral reef fisheries; Fish biomass; Market access; Social-ecological systems. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76440/77528.pdf |
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| Registros recuperados: 66 | |
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