11 results on '"Jean-Christophe de Massary"'
Search Results
2. Description of a new species of the genus Adenomera (Amphibia, Anura, Leptodactylidae) from French Guiana
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Renaud Boistel, Jean-Christophe de Massary, and Ariadne Angulo
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Zoology ,QL1-991 - Abstract
We describe a new species of the genus Adenomera from French Guiana. Collecting conditions, details about the localities and microhabitats are given. The advertisement call was recorded and is herein analyzed and described. Morphological and bioacoustic comparisons are drawn with other species of the genus. The new species is readily distinguished from other taxa by its distinctive coloration pattern, the occurrence of dorsolateral ridges and inguinal glands, and by the longer duration of the notes of its advertisement call. The taxonomy of Adenomera is evaluated with regard to current available knowledge. more...
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- 2006
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3. Date de publication, onomatophore and onymotope of Emoia cyanura (Squamata: Scincidae)
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Thierry Frétey, Annemarie Ohler, Jean Lescure, Jean-Christophe de Massary, Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Patrimoine naturel (PatriNat), and Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Office français de la biodiversité (OFB) more...
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0106 biological sciences ,Squamata ,Reptilia ,Insecta ,Arthropoda ,Mantodea ,Zoology ,[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy ,010603 evolutionary biology ,01 natural sciences ,Synonymy ,Publication date ,[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology ,Animalia ,Emoia cyanura ,Chordata ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Synonymie ,biology ,010604 marine biology & hydrobiology ,Availability ,Date de publication ,Biodiversity ,biology.organism_classification ,Disponibilité ,Empusidae ,Animal Science and Zoology ,Scincidae - Abstract
International audience; The publication date, availability and onymotope of the nomen Scincus cyanurus are assessed. The nomen was validly published by Lesson in 1830 and is based on a holophoront, probably from the island of Tahiti. Elements allowing the identification of the nomina cited in the synonymy of Scincus cyanurus are given. Eumeces lessonii Duméril & Bibron, 1839 is a replacement name of this nomen (alloneonym) and Emoia pheonura Ineich, 1987 is a subjective synonym (doxisonym) whereas the nomina Tiliqua lessonii Cocteau and Tiliqua kienerii Cocteau are unavailable as the part of the work of Cocteau proposing these nomina has not been published. The nomen“Scincus celestinus” is a gymnonym (nomen nudum) to be listed in the synonymy of Mocoa caeruleocauda De Vis, 1892 as confirmed by the identity of the specimens from the MNHN collections on which the nomen is based.; La date de publication, la disponibilité et l’onymotope du nomen Scincus cyanurus sont analysés. Le nomen a été validement publié par Lesson en 1830 et il est basé sur un holophoronte, probablement de l’île de Tahiti. Des éléments permettant la reconnaissance de l’identité des nomina dans la synonymy de Scincus cyanurus basés sur des spécimens du MNHN sont donnés. Ainsi Eumeces lessonii Duméril & Bibron, 1839 est un nom de remplacement de ce nomen (allonéonyme) et Emoia pheonura Ineich, 1987 est un synonyme subjectif (doxisonyme). En revanche, les nomina Tiliqua lessonii Cocteau et Tiliqua kienerii Cocteau ne sont pas disponibles car cette livraison du travail de Cocteau n’a pas été publiée. Le nomen“Scincus celestinus” est un gymnonyme (nomen nudum) qu’il faut inclure dans la synonymie de Mocoa caeruleocauda De Vis, 1892, confirmé par l’identité des spécimens de la collection du MNHN sur lesquels le nomen est basé. more...
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- 2021
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4. Habitat diversity associated with island size and environmental filtering control the species richness of rock-savanna plants in neotropical inselbergs
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Jean-Christophe de Massary, Ludovic Henneron, Jean-François Ponge, Corinne Sarthou, Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Patrimoine naturel (PatriNat), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Agence Française pour la Biodiversité (AFB), Mécanismes Adaptatifs et Evolution (MECADEV), and Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) more...
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0106 biological sciences ,Abiotic component ,island biogeography ,Ecology ,Insular biogeography ,010604 marine biology & hydrobiology ,Species diversity ,Vegetation ,environmental filtering ,15. Life on land ,Biology ,structural equation modelling ,010603 evolutionary biology ,01 natural sciences ,plant diversity ,Altitude ,[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems ,Habitat ,13. Climate action ,patchy habitats ,Biological dispersal ,Species richness ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,isolation ,Ecology, Evolution, Behavior and Systematics - Abstract
International audience; Disentangling the multiple factors controlling species diversity is a major challenge in ecology. Island biogeography and environmental filtering are two influential theories emphasizing respectively island size and isolation, and the abiotic environment, as key drivers of species richness. However, few attempts have been made to quantify their relative importance and investigate their mechanistic basis. Here, we applied structural equation modelling, a powerful method allowing test of complex hypotheses involving multiple and indirect effects, on an island-like system of 22 French Guianan neotropical inselbergs covered with rock-savanna. We separated the effects of size (rock-savanna area), isolation (density of surrounding inselbergs), environmental filtering (rainfall, altitude) and dispersal filtering (forest-matrix openness) on the species richness of all plants and of various ecological groups (terrestrial versus epiphytic, small-scale versus large-scale dispersal species). We showed that the species richness of all plants and terrestrial species was mainly explained by the size of rock-savanna vegetation patches, with increasing richness associated with higher rock-savanna area, while inselberg isolation and forest-matrix openness had no measurable effect. This size effect was mediated by an increase in terrestrial-habitat diversity, even after accounting for increased sampling effort. The richness of epiphytic species was mainly explained by environmental filtering, with a positive effect of rainfall and altitude, but also by a positive size effect mediated by enhanced woody-plant species richness. Inselberg size and environmental filtering both explained the richness of small-scale and large-scale dispersal species, but these ecological groups responded in opposite directions to altitude and rainfall, that is positively for large-scale and negatively for small-scale dispersal species. Our study revealed both habitat diversity associated with island size and environmental filtering as major drivers of neotropical inselberg plant diversity and showed the importance of plant species growth form and dispersal ability to explain the relative importance of each driver. more...
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- 2019
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5. From inselberg to inselberg: floristic patterns across scales in French Guiana (South America)
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Jean-Christophe de Massary, Jean-François Ponge, Jean-Pierre Gasc, Corinne Sarthou, Sandrine Pavoine, Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre d'Ecologie et des Sciences de la COnservation (CESCO), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN), Mécanismes adaptatifs : des organismes aux communautés (MAOAC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Patrimoine naturel (PatriNat), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Agence Française pour la Biodiversité (AFB), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) more...
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0106 biological sciences ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,Ecology ,RLQ and fourth-corner analysis ,Climate change ,Plant Science ,Vegetation ,15. Life on land ,010603 evolutionary biology ,01 natural sciences ,Floristics ,savannas ,French Guiana ,Peneplain ,inselbergs ,Altitude ,Geography ,Habitat ,endemism ,Biological dispersal ,Endemism ,Ecology, Evolution, Behavior and Systematics ,human use ,010606 plant biology & botany - Abstract
International audience; Granitic outcrop vegetation was compared in 22 inselbergs of French Guiana, South America, using RLQ and fourth-corner analyses to identify the main relationships between environmental gradients and plant traits. At the scale of the whole territory the distribution of species and species traits was mostly driven by a spatially-structured gradient embracing regional climate (annual rainfall), forest matrix (canopy openness), and inselberg features (altitude, shape, habitats, summit forest, degree of epiphytism, fire events). Biogeographic, environmental and past historical factors contribute to explain the variation observed at coarse scale and two groups of inselbergs are identified. A first group occupies the southern peneplain in a semi-open forest matrix and exhibits a higher representation of suffrutescent species and climbers, a lower representation of upright shrubs, a lower degree of Guiana Shield endemism, and a higher incidence of human use and autochory. All these features suggest an adaptation to more disturbed environments linked to past climate changes and savannization and to human influences. A second group, characterized by opposite plant traits, occupies the northern part of French Guiana and the far south within a closed forest matrix. Within archipelagos (inselbergs at less than 7 km distance), C-score and Mantel tests revealed a random co-occurrence of plant species and an increase of floristic dissimilarity with distance without any concomitant change in plant traits, respectively, suggesting that spatially-structured stochastic factors (limitation by dispersal) were the driving force of vegetation change at fine scale. more...
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- 2017
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6. Patterns of plant diversity on inselbergs in French Guiana
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Sarthou, Corinne, Poncy, Odile, Jean-François Ponge, Jean-Jacques De Granville, Cremers, Georges, Jean-Christophe De Massary, and Gasc, Jean-Pierre
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- 2015
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7. Fragmentation de l'habitat et diversité des petits vertébrés en forêt tropicale humide : l'exemple du barrage de Petit Saut
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Jean-Marc Pons, Stéphane Ringuet, Jean-Christophe de Massary, Olivier Claessens, Jean Francois Cosson, and Laurent Granjon
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forêt tropicale ,fragmentation ,Biodiversité ,conservation ,petits vertébrés ,barrage ,Pharmacology ,Geography ,Fragmentation (computing) ,Forestry ,small vertebrates ,dam ,Biodiversity ,tropical forest ,Tropical forest - Abstract
The short-term effects of forest fragmentation due to the Petit Saut hydroelectric dam in French Guiana were studied in both small terrestrial (lizards and mammals) and flying (birds and frugivorous bats) vertebrates. Both community structure and the species composition changed quickly in the fragmented area. The impact of fragmentation on abundance and species richness varied depending on the zoological group. However, a rapid decline in species diversity on small islands was observed as early as one year after flooding for small terrestrial mammals, bats and lizards, and two years for birds. These communities were often dominated by a few general ist species (Kentropyx calcarata for lizards, Proechimys cuvieri for small terrestrial mammals and Artibeus obscurus for frugivorous bats). These results show the rapid impact of forest fragmentation on small vertebrate communities. Other similar projects conducted in the Neotropics are briefly reviewed. These results underline the importance of maintaining research centered on conservation issues in French Guiana, considering the exceptional heritage value of these habitats., Les effets précoces de la fragmentation forestière sur les communautés de petits vertébrés terrestres (lézards et micromammifères) et volants (oiseaux et chauves-souris frugivores), à la suite de la mise en service du barrage de Petit Saut en Guyane française, ont été étudiés. La structure et la composition spécifique des communautés ont été rapidement modifiées dans la zone fragmentée. L'impact de la fragmentation sur l'abondance et la richesse spécifique est contrasté selon les groupes zoologiques. En revanche la chute de diversité spécifique sur les petites îles est manifeste, un an seulement après l'inondation pour les lézards, les micromammifères terrestres et les chauves-souris, et deux ans après pour les oiseaux. Les peuplements insulaires sont dominés le plus souvent par un faible nombre d'espèces généralistes (Kentropyx calcarata pour les lézards, Proechimys cuvieri pour les petits rongeurs, et Artibeus obscurus pour les chauves-souris frugivores). Ces résultats montrent l'impact immédiat de la fragmentation forestière en région tropicale sur les communautés de petits vertébrés et complètent d'autres travaux comparables menés en région néotropicale, dont une courte revue est présentée. Ils soulignent également l'importance de maintenir un pôle de recherche actif sur les problèmes de conservation en Guyane française, eu égard à la valeur patrimoniale exceptionnelle de ces milieux., Ringuet Stéphane, Claessens Olivier, Cosson Jean-François, de Massary Jean-Christophe, Granjon Laurent, Pons Jean-Marc. Fragmentation de l'habitat et diversité des petits vertébrés en forêt tropicale humide : l'exemple du barrage de Petit Saut. In: Journal d'agriculture traditionnelle et de botanique appliquée, 40ᵉ année, bulletin n°1-2,1998. Conserver, gérer la biodiversité : quelle stratégie pour la Guyane ? sous la direction de Marie Fleury et Odile Poncy. pp. 11-30. more...
- Published
- 1998
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8. Mapping nationally important bocage ecological continuities in France for the « Trame verte et bleue » project
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Romain Sordello, Jacques Comolet-Tirman, Horace da Costa, Guillaume Grech, Patrick Haffner, Jean-Christophe de Massary, Géraldine Rogeon, Jean-Philippe Siblet, Julien Touroult, and Service irevues, irevues more...
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[SDE.BE] Environmental Sciences/Biodiversity and Ecology - Abstract
Maintaining a dense ecological network for different habitats is a challenge to guarantee persistence of ecological processes at national scale. As cultural landscape favourable for biodiversity, bocage represents an important stake in terms of connectivity. in the context of the “Trame verte et bleue” project and the definition of its guidelines, we carried out a survey to propose a map of bocage ecological continuities of national significance. The process is based on a cartographic crossing between three data sources: two existing maps of land use and crop diversity, and an indicative map of ecological quality. The latter was produced representing specific richness of 11 bocage-dependent species in a grid. When the three criteria were visually satisfied in the manual cartographic crossing, structural and functional continuity was identified. The obtained map highlights 9 main indicative continuities. The results were confronted to local data and expertise to assess map relevance. The main objective of this work is to facilitate national coherence of regional ecological networks., Le maintien d'un réseau suffisamment dense de continuités écologiques à l'échelle nationale couvrant différents types de milieux est un enjeu majeur pour assurer la pérennité des processus écologiques qui se déroulent à large échelle. Les bocages, milieux agricoles favorables à la biodiversité, sont concernés par ce défi. Dans le cadre du programme « Trame verte et bleue » et de la définition de ses orientations nationales, nous avons mené une réflexion afin de proposer une carte de grandes continuités écologiques bocagères. La démarche repose sur un croisement cartographique manuel entre: une carte de la densité de haies, une carte de la diversité des assolements et une carte indicatrice d'une certaine qualité écologique. Cette dernière carte représente la richesse spécifique par maille pour un ensemble de 11 espèces associées aux bocages et écologiquement exigeantes. Les ensembles présentant visuellement un fort intérêt selon ces trois critères cartographiques ont été considérés comme des continuités à la fois structurelles et fonctionnelles. Le résultat obtenu se présente sous la forme d’une carte indiquant 9 grandes continuités à l’échelle nationale. Une confrontation à l’expertise et à des études locales et régionales a permis de valider la pertinence de cette carte destinée à favoriser la cohérence nationale des trames écologiques régionales. more...
- Published
- 2013
9. La station de recherches de Saint-Eugène : situation, environnement et présentation générale
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Olivier Claessens, Laurent Granjon, Jean-Christophe de Massary, and Stéphane Ringuet
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This paper presents the field research station of the Muséum national d’Histoire naturelle (MNHN) at Saint-Eugène, through its history, its natural environment, and its equipping. Main habitats encountered on and around the Petit Saut reservoir are described, together with their evolution following dam flooding. A general map of the Saint-Eugène area shows all the MNHN study sites (mainland and islands). A table summarizes their characteristics of surface and isolation, as well as main topics under study as yet., L’article présente la station de terrain du Muséum national d’Histoire naturelle (MNHN) à Saint-Eugène, à travers son historique, son environnement naturel et ses aménagements. Les principaux habitats rencontrés sur et en bordure de la retenue du barrage de Petit Saut, ainsi que leur évolution consécutive à la mise en eau du barrage, sont décrits. Une carte générale de Saint-Eugène présente l’ensemble des sites d’étude (îles et terre ferme) du MNHN. Un tableau résume leurs caractéristiques de surface et d’isolement, ainsi que les centres d’intérêt dont ils ont fait l’objet., Claessens Olivier,Granjon Laurent,Massary Jean-Christophe de,Ringuet Stéphane. La station de recherches de Saint-Eugène : situation, environnement et présentation générale . In: Revue d'Écologie. Supplément n°8, 2002. pp. 21-37. more...
- Published
- 2002
10. Effets de la fragmentation de l’habitat sur les peuplements et les populations de lézards terrestres en forêt tropicale : l’exemple du barrage de Petit Saut en Guyane française
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Jean-Christophe De MASSARY
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- 2001
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11. Crocodilurus amazonicus Spix, 1825: The Valid Name for Crocodilurus lacertinus Auctorum (nec Daudin, 1802) (Squamata: Teiidae)
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Jean-Christophe de Massary and Marinus S. Hoogmoed
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Valid name ,Squamata ,Crocodilurus lacertinus ,Animal Science and Zoology ,Herpetology ,Anatomy ,Biology ,Crocodilurus ,Teiidae ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Crocodilurus amazonicus Spix, 1825: The Valid Name for Crocodilurus lacertinus Auctorum (nec Daudin, 1802) (Squamata: Teiidae) Author(s): Jean-Christophe de Massary and Marinus S. Hoogmoed Source: Journal of Herpetology, Vol. 35, No. 2 (Jun., 2001), pp. 353-357 Published by: Society for the Study of Amphibians and Reptiles Stable URL: http://www.jstor.org/stable/1566133 . Accessed: 18/06/2013 11:40 more...
- Published
- 2001
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