65 Works

La filière des farines infantiles produites localement dans six pays sahéliens : Burkina Faso, Mali, Mauritanie, Niger, Sénégal, Tchad : rapport de l'étude \"La filière des farines infantiles produites localement dans 6 pays sahéliens\" réalisée de juillet 2019 à janvier 2020

Fanny Olive, Claire Mouquet Rivier , N. Fioroni , A. Bichard, N. Boulle-Martinaud, C. Kaboré, M. Denizeau, N.M. Zagré, A.S Le Dain , N.F. Ndiaye , E.H.K.P Tou & A. Aho

Adiip : amélioration et développement d’indicateurs d’impact et de pression pour le suivi du milieu lagonaire. Synthèse du programme suivie de cinq rapports thématiques, un document préliminaire et un document complémentaire

Jean-Michel Fernandez, Bruno Andral, Ludovic Breau, François Galgani, Jean-Louis Gonzalez, Olivier Grauby, Laurent Haddad, Hélène Kaplan, Shilpa Kumar-Roiné, Hélène Le Grand, Jean-Dominique Meunier, Ben Moreton, Mariana de Oliveira Rasa Bonhsack, Stéphanie Pluchino & Jocelyn Senia
Programme Adiip. Tome Nickel et Environnement

Data from: Isolation and no-entry marine reserves mitigate anthropogenic impacts on grey reef shark behavior

Jean-Baptiste Juhel, Laurent Vigliola, Laurent Wantiez, Tom B. Letessier, Jessica J. Meeuwig & David Mouillot
Reef sharks are vulnerable predators experiencing severe population declines mainly due to overexploitation. However, beyond direct exploitation, human activities can produce indirect or sub-lethal effects such as behavioral alterations. Such alterations are well known for terrestrial fauna but poorly documented for marine species. Using an extensive sampling of 367 stereo baited underwater videos systems, we show modifications in grey reef shark (Carcharhinus amblyrhynchos) occurrence and feeding behavior along a marked gradient of isolation from humans...

Data from: Mitochondrial haplotypes indicate parapatric-like phylogeographic structure in blue-spotted maskray (Neotrygon kuhlii) from the Coral Triangle region

Irma S. Arlyza, Kang-Ning Shen, Jean-Dominique Durand & Philippe Borsa
Phylogeographic structure was investigated in the blue-spotted maskray, Neotrygon kuhlii, focusing on the Coral Triangle region. We used as genetic marker a 519-bp fragment of the cytochrome c-oxidase subunit I (COI) gene, sequenced in a total of 147 individuals from 26 sampling locations. The parsimony network of COI haplotypes was split into seven distinct clades within the Coral Triangle region. Different clades had exclusive but contiguous geographic distributions, indicating parapatric-like phylogeographic structure. Strong genetic differences...

Dispersal distances of radio-tracked cane toads in French Guiana

Richard Shine, Jayna DeVore & Simon Ducatez
Like most invasive species, cane toads have attracted less research in their native range than in invaded areas. We radio-tracked 34 free-ranging toads in French Guiana, a source region for most invasive populations, across two coastal and two rainforest sites. Coastal toads generally sheltered in pools of fresh or brackish water but nocturnally foraged on beaches, whereas rainforest toads sheltered in forested habitats, moving into open areas at night. Over five days of monitoring, native...

Agroecosystem diversification with legumes or non-legumes improves differently soil fertility according to soil type

Marie Sauvadet, Jean Trap, Gaëlle Damour, Claude Plassard, Karel Van Den Meersche, Raphaël Achard, Clémentine Allinne, Patrice Autfray, Isabelle Bertrand, Eric Blanchart, Péninna Deberdt, Séguy Enock, Jean-Daniel Essobo, Grégoire Freschet, Mickaël Hedde, Elias De Melo Virginio Filho, Bodovololona Rabary, Miora Rakotoarivelo, Richard Randriamanantsoa, Béatrice Rhino, Aude Ripoche, Elisabeth Rosalie, Stéphane Saj, Thierry Becquer, Philippe Tixier … & Jean-Michel Harmand
Plant diversification through crop rotation or agroforestry is a promising way to improve sustainability of agroecosystems. Nonetheless, criteria to select the most suitable plant communities for agroecosystems diversification facing contrasting environmental constraints need to be refined. Here, we compared the impacts of 24 different plant communities on soil fertility across six tropical agroecosystems: either on highly weathered Ferralsols, with strong P limitation, or on partially weathered soils derived from volcanic material, with major N limitation....

Data from: Integration and harmonization of trait data from plant individuals across heterogeneous sources

Tim P. Lenters, Andrew Henderson, Caroline M. Dracxler, Guilherme A. Elias, Suzanne Mogue Kamga, Thomas L. P. Couvreur & W. Daniel Kissling
Trait data represent the basis for ecological and evolutionary research and have relevance for biodiversity conservation, ecosystem management and earth system modelling. The collection and mobilization of trait data has strongly increased over the last decade, but many trait databases still provide only species-level, aggregated trait values (e.g. ranges, means) and lack the direct observations on which those data are based. Thus, the vast majority of trait data measured directly from individuals remains hidden and...

Georeferenced semi-quantitative data of the jellyfish Rhizostoma pulmo (Cnidaria: Scyphozoa) from 1810 to 2019 in the Mediterranean and Black Seas

Valentina Leoni, Delphine Bonnet, Eduardo Ramírez Romero & Juan Carlos Molinero
This dataset is a gathering of historical and contemporaneous records of the medusae stage of Rhizostoma pulmo on its distributional range. The information was compilated to analyze biogeographical patterns and temporal changes of the species population dynamics. This compilation includes data available in websites and peer-review papers. All references are indicated. Data are individualized by month and year from 1810 to 2019, totalizing 7373 records. Longitude and latitude data are reported, as well as the...

Data from Soil chemistry turned upside down: a meta-analysis of invasive earthworm effects on soil chemical properties

Olga Ferlian, Madhav P. Thakur, Alejandra Castañeda González, Layla M. San Emeterio, Susanne Marr, Barbbara Da Silva Rocha & Nico Eisenhauer
Recent studies have shown that invasive earthworms can dramatically reduce native biodiversity, both above and below the ground. However, we still lack a synthetic understanding of the underlying mechanisms behind these changes, such as whether earthworm effects on soil chemical properties drive such relationships. Here, we investigated the effects of invasive earthworms on soil chemical properties (pH, water content, and the stocks and fluxes of carbon, nitrogen, and phosphorus) by conducting a meta-analysis. Invasive earthworms...

Le devenir-savant de l'Afrique: penser les futurs africains en réponse aux défis planétaires

Mame Penda Ba & Philippe Cury
Les enjeux globaux – le changement climatique, la réduction de la biodiversité, l’émergence de nouvelles pandémies, la sécurité alimentaire, les inégalités de genre et la lutte contre le terrorisme – nécessitent des solutions locales produites dans un contexte de limites planétaires. Les sciences de la connaissance et de l’innovation sont désormais sollicitées pour mieux évaluer les futurs dans lesquels nous pourrons vivre et trouver de nouvelles réponses, des appropriations locales, régionales et nationales. La recherche...

Le devenir-savant de l'Afrique: penser les futurs africains en réponse aux défis planétaires

Mame-Penda Ba & Philippe Cury
Les enjeux globaux – le changement climatique, la réduction de la biodiversité, l’émergence de nouvelles pandémies, la sécurité alimentaire, les inégalités de genre et la lutte contre le terrorisme – nécessitent des solutions locales produites dans un contexte de limites planétaires. Les sciences de la connaissance et de l’innovation sont désormais sollicitées pour mieux évaluer les futurs dans lesquels nous pourrons vivre et trouver de nouvelles réponses, des appropriations locales, régionales et nationales. La recherche...

Data from: Phylogeography and niche modelling of the relict plant Amborella trichopoda (Amborellaceae) reveal multiple Pleistocene refugia in New Caledonia

Valérie Poncet, François Munoz, Jérôme Munzinger, Yohan Pillon, Céline Gomez, Marie Couderc, Christine Tranchant-Dubreuil, Serge Hamon & Alexandre De Kochko
Amborella trichopoda Baill. (Amborellaceae, Amborellales), the sole living member of the sister group to all other extant Angiosperms, is endemic to New Caledonia. We addressed the intraspecific phylogeography of Amborella by investigating whether its present population genetic structure could be related to its current and past habitats. We found moderate range-wide genetic diversity based on nuclear microsatellite data, and detected four well-differentiated, geographically distinct genetic groups using Bayesian clustering analyses. We modeled the ecological niche...

Data from: Whole genome sequencing of elite rice cultivars as a comprehensive information resource for marker assisted selection

Jorge Duitama, Alexander Silva, Yamid Sanabria, Daniel Felipe Cruz, Constanza Quintero, Carolina Ballen, Mathias Lorieux, Brian Scheffler, Andrew Farmer, Edgar Torres, James Oard & Joe Tohme
Current advances in sequencing technologies and bioinformatics revealed the genomic background of rice, a staple food for the poor people, and provided the basis to develop large genomic variation databases for thousands of cultivars. Proper analysis of this massive resource is expected to give novel insights into the structure, function, and evolution of the rice genome, and to aid the development of rice varieties through marker assisted selection or genomic selection. In this work we...

Villes nouvelles: ce que révèlent leurs difficultés manifestes dans les Suds. Une réflexion à partir du cas marocain

Claude de Miras & Catherine Paquette Vassalli

Data from: Cost-effective enrichment hybridization capture of chloroplast genomes at deep multiplexing levels for population genetics and phylogeography studies

Cédric Mariac, Nora Scarcelli, Juliette Pouzadou, Adeline Barnaud, Claire Billot, Adama Faye, Vincent Maillol, Sylvain Santoni, Yves Vigouroux, Thomas L. P. Couvreur, Ayite Kougbeadjo, François Sabot & Guillaume Martin
Biodiversity, phylogeography and population genetic studies will be revolutionized by access to large datasets thanks to next generation sequencing methods. In this study, we develop an easy and cost-effective protocol for in-solution enrichment hybridization capture of complete chloroplast genomes applicable at deep multiplexed levels. The protocol uses cheap in-house species-specific probes developed via long range PCR of the entire chloroplast. Barcoded libraries are constructed and in-solution enrichment of the chloroplasts is done using the probes....

Data from: Recommendations for assessing earthworm populations in Brazilian ecosystems

Herlon Nadolny, Alessandra Santos, Wilian Demetrio, Talita Ferreira, Lilianne Dos Santos Maia, Ana Caroline Conrado, Marie Bartz, Marilice Garrastazu, Elodie Da Silva, Dilmar Baretta, Amarildo Pasini, Fabiane Vezzani, José Paulo Sousa, Luis Cunha, Jerome Mathieu, Patrick Lavelle, Jörg Römbke & George Brown
Earthworms are often related to fertile soils and frequently used as environmental quality indicators. However, to optimize their use as bioindicators, their populations must be evaluated together with environmental and anthropogenic variables regulating earthworm communities. In this review we identify the earthworm, soil chemical, physical, environmental and management-related variables evaluated in 124 published studies that quantified earthworm abundance (>7300 samples) in 765 sites with different types of climate, soils, land use and management systems in...

Cocoa agroforest multifunctionality and soil fertility explained by shade tree litter traits

Marie Sauvadet, Stéphane Saj, Grégoire Freschet, Jean-Daniel Essobo, Séguy Enock, Thierry Becquer, Philippe Tixier & Jean-Michel Harmand
Manipulating plant functional diversity to improve agroecosystem multifunctionality is a central challenge of agricultural systems worldwide. In cocoa agroforestry systems (cAFS), shade trees are used to supply many services to farmers, yet their impact on soil functioning and cocoa yields is likely to vary substantially among tree species. Here, we compared the impact of five shade tree species (Canarium schweinfurthii (Canarium), Dacryoides edulis (Safou), Milicia excelsa (Iroko), Ceiba pentandra (Kapok tree), Albizia adianthifolia (Albizia)) and...

Mitogenomics dataset for the Rasborinae of Sundaland

Nicolas Hubert
Aim: Eustasy has long been put forward to explain the colonization of Southeast Asian islands by freshwater aquatic organisms. We examined the relative impact of Sundaland geology since the Oligocene and of Pleistocene Eustatic Fluctuations on the mitochondrial lineage diversification of a species-rich subfamily of Cypriniformes fishes widely distributed in Southeast Asia, the Rasborinae. We specifically tested if variations in the extent of exposed lands and island connectivity during Pleistocene eustasy (the Paleoriver hypothesis) induced...

Data from: Individualistic evolutionary responses of central African rain forest plants to Pleistocene climatic fluctuations

Andrew Helmstetter, Kevin Bethune, Narcisse Kamdem, Bonaventure Sonke & Thomas Couvreur
Understanding the evolutionary dynamics of genetic diversity is fundamental for species conservation in the face of climate change, particularly in hyper-diverse biomes. Species in a region may respond similarly to climate change, leading to comparable evolutionary dynamics, or individualistically, resulting in dissimilar patterns. The second largest expanse of continuous tropical rain forest (TRF) in the world is found in Central Africa. Here, present-day patterns of genetic structure are thought to be dictated by repeated expansion...

Data from: Trait evolution and historical biogeography shape assemblages of annual killifish

Andrew Helmstetter, Alexander Papadopulos, Javier Igea & Tom Van Dooren
Aim: Different species assemblages of annual killifish possess replicated body size distributions yet have unique sets of species in each area of endemism. Here, we use models of trait evolution and historical biogeography to discover how size variation originated and has been restructured. Location: South America. Taxon: Austrolebias (Cyprinodontiformes). Methods: We sampled 63 individuals from 26 Austrolebias species. Using phylogenetic trees (BEAST2), data on environmental variables at sampling locations and size data we compare different...

Model output for: Attributing causes of future climate change in the California Current System with multi-model downscaling

Evan Howard, Hartmut Frenzel, Fayçal Kessouri, Lionel Renault, Daniele Bianchi, James McWilliams & Curtis Deutsch
Regional Ocean Modeling System outputs from dynamic downscaling of Coupled Model Intercomparison Project climate forcings in the California Current system, including projections with full climate forcings, as well as attribution experiments with only changes in wind, heat fluxes and other properties changing stratification, and boundary biogeochemical forcings. Output variables include euphotic zone integrated net primary productivity, and incident photosytnehtically available radiation, and ocean temperature, salinity, vertical velocity, and dissolved oxygen and nitrate concentrations at select...

Guide pour le suivi de la qualité du milieu marin en Nouvelle-Calédonie

Benoît Beliaeff, Guénolé Bouvet, Jean-Michel Fernandez, Carine David & Thierry Laugier
Programmes Guide du milieu marin et Zonéco. [Tome Nickel et Environnement]

Evolution from subduction initiation to mature island arc volcanism in the Upper Eocene to Middle Miocene Vitiaz Arc, SW Pacific: Evidence from Malekula Island (Vanuatu)

Kathrin P Schneider , Karsten M Haase & Bernard Pelletier
The oldest volcanic rocks exposed on Malekula Island, now belonging to the New Hebrides Island Arc, formed in the Upper Eocene to Middle Miocene Vitiaz Island Arc, Southwest Pacific. They are thought to have formed contemporaneously with Fiji and the Izu-Bonin-Mariana (IBM) arc during westward subduction initiation of the Pacific beneath the Indo-Australian Plate [e.g., 1]. To test this hypothesis with regard to the mantle source compositions and contributions from the subducting slab, we provide...

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