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1. Land snails can trap trematode cercariae in their shell: Encapsulation as a general response against parasites?

Author

Gérard Claudia, De Tombeur Youna, Dahirel Maxime, and Ansart Armelle

Subjects
helicids, cercariae, shell-encapsulation, defence response, Infectious and parasitic diseases, RC109-216
Abstract

Terrestrial gastropods are hosts of a wide variety of metazoan parasites and can respond to parasite exposure in various ways. One of these defence mechanisms, the ability to trap parasites in the host shell, was previously thought to apply only against nematodes. During a field survey along an urbanisation gradient, we found that the shell of Cornu aspersum and Cepaea nemoralis can contain encapsulated trematode cercariae, with prevalences of 7% and 1%, respectively over the entire sample, and up to 47% at the local population level. To our knowledge, this is the first case study unambiguously showing that land snails can trap non-nematode parasites in their shell at non-negligible prevalences. Shell-encapsulation could be a more general defence mechanism than previously described, and more studies are needed to understand its importance and variability.

Published
2023
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2. Bottom-up and top-down control of dispersal across major organismal groups

Author

Fronhofer, Emanuel A., Legrand, Delphine, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon, Bonte, Dries, Chaine, Alexis, Dahirel, Maxime, De Laender, Frederik, De Raedt, Jonathan, di Gesu, Lucie, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J., Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank, Schtickzelle, Nicolas, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, and Cote, Julien

Published
2018
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7. Brachylaima spp. (Trematoda) parasitizing Cornu aspersum (Gastropoda) in France with potential risk of human consumption

Author

Gérard Claudia, Ansart Armelle, Decanter Nolwenn, Martin Marie-Claire, and Dahirel Maxime

Subjects
cornu aspersum, brachylaima, prevalence, edible land snail, trematode, human parasitosis, Infectious and parasitic diseases, RC109-216
Abstract

The edible land snail Cornu aspersum, native to the Mediterranean coastlines of North Africa, is widely distributed on most continents and often invasive in areas where introduction is recent. This species could contribute to the geographic spread of parasites as demonstrated for Brachylaima spp. These cosmopolitan trematodes may represent a threat to human health, like in Australia where Brachylaima cribbi infects humans. In this study, we demonstrate for the first time the occurrence of Brachylaima spp. in two French populations of C. aspersum, Thorigné-Fouillard (Ille-et-Vilaine), and Arçais (Deux-Sèvres), with an overall prevalence of 10.4% (Thorigné-Fouillard) and 73.3% (Arçais), respectively and a metacercarial intensity on average three times higher in Thorigné-Fouillard (37) than in Arçais (11). Cornu aspersum may act as a first and second intermediate host, as demonstrated in Arçais. The morphometrics of metacercariae, particularly the great body length about 2 mm, discriminate our Brachylaima species from those already described in C. aspersum (B. cribbi in Australia, and B. aspersae, B. llobregatensis and B. mascomai in Europe). Molecular analysis, based on 28S and COI, suggests the occurrence of two species in our study, one of which is probably Brachylaima mesostoma, an intestinal parasite of passeriform birds described in Central Europe. We underline the need for further research to identify species of Brachylaima in France and measure the health hazard of consuming field-collected snails.

Published
2020
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9. Dispersal syndromes in challenging environments: A cross‐species experiment

Author

Cote, Julien, primary, Dahirel, Maxime, additional, Schtickzelle, Nicolas, additional, Altermatt, Florian, additional, Ansart, Armelle, additional, Blanchet, Simon, additional, Chaine, Alexis S., additional, De Laender, Frederik, additional, De Raedt, Jonathan, additional, Haegeman, Bart, additional, Jacob, Staffan, additional, Kaltz, Oliver, additional, Laurent, Estelle, additional, Little, Chelsea J., additional, Madec, Luc, additional, Manzi, Florent, additional, Masier, Stefano, additional, Pellerin, Felix, additional, Pennekamp, Frank, additional, Therry, Lieven, additional, Vong, Alexandre, additional, Winandy, Laurane, additional, Bonte, Dries, additional, Fronhofer, Emanuel A., additional, and Legrand, Delphine, additional

Published
2022
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10. Dispersal syndromes in challenging environments: A cross‐species experiment

Author

UCL - SST/ELI/ELIB - Biodiversity, Cote, Julien, Dahirel, Maxime, Schtickzelle, Nicolas, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon, Chaine, Alexis S., De Laender, Frederik, De Raedt, Jonathan, Haegeman, Bart, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J., Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Bonte, Dries, Fronhofer, Emanuel A., Legrand, Delphine, UCL - SST/ELI/ELIB - Biodiversity, Cote, Julien, Dahirel, Maxime, Schtickzelle, Nicolas, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon, Chaine, Alexis S., De Laender, Frederik, De Raedt, Jonathan, Haegeman, Bart, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J., Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Bonte, Dries, Fronhofer, Emanuel A., and Legrand, Delphine

Abstract

Dispersal is a central biological process tightly integrated into life-histories, morphology, physiology and behaviour. Such associations, or syndromes, are anticipated to impact the eco-evolutionary dynamics of spatially structured populations, and cascade into ecosystem processes. As for dispersal on its own, these syndromes are likely neither fixed nor random, but conditional on the experienced environment. We experimentally studied how dispersal propensity varies with individuals' phenotype and local environmental harshness using 15 species ranging from protists to vertebrates. We reveal a general phenotypic dispersal syndrome across studied species, with dispersers being larger, more active and having a marked locomotion-oriented morphology and a strengthening of the link between dispersal and some phenotypic traits with environmental harshness. Our proof-of-concept metacommunity model further reveals cascading effects of context-dependent syndromes on the local and regional organisation of functional diversity. Our study opens new avenues to advance our understanding of the functioning of spatially structured populations, communities and ecosystems.

Published
2022

11. Dispersal syndromes in challenging environments: A cross‐species experiment

Author

Cote, Julien; https://orcid.org/0000-0002-4453-5969, Dahirel, Maxime, Schtickzelle, Nicolas, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon; https://orcid.org/0000-0002-3843-589X, Chaine, Alexis S, De Laender, Frederik; https://orcid.org/0000-0002-4060-973X, De Raedt, Jonathan, Haegeman, Bart, Jacob, Staffan; https://orcid.org/0000-0003-1956-9646, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J, Madec, Luc, Manzi, Florent, Masier, Stefano; https://orcid.org/0000-0002-5866-0066, Pellerin, Felix; https://orcid.org/0000-0002-7062-4957, Pennekamp, Frank, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Bonte, Dries; https://orcid.org/0000-0002-3320-7505, Fronhofer, Emanuel A, Legrand, Delphine, Cote, Julien; https://orcid.org/0000-0002-4453-5969, Dahirel, Maxime, Schtickzelle, Nicolas, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon; https://orcid.org/0000-0002-3843-589X, Chaine, Alexis S, De Laender, Frederik; https://orcid.org/0000-0002-4060-973X, De Raedt, Jonathan, Haegeman, Bart, Jacob, Staffan; https://orcid.org/0000-0003-1956-9646, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J, Madec, Luc, Manzi, Florent, Masier, Stefano; https://orcid.org/0000-0002-5866-0066, Pellerin, Felix; https://orcid.org/0000-0002-7062-4957, Pennekamp, Frank, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Bonte, Dries; https://orcid.org/0000-0002-3320-7505, Fronhofer, Emanuel A, and Legrand, Delphine

Abstract

Dispersal is a central biological process tightly integrated into life-histories, morphology, physiology and behaviour. Such associations, or syndromes, are anticipated to impact the eco-evolutionary dynamics of spatially structured populations, and cascade into ecosystem processes. As for dispersal on its own, these syndromes are likely neither fixed nor random, but conditional on the experienced environment. We experimentally studied how dispersal propensity varies with individuals' phenotype and local environmental harshness using 15 species ranging from protists to vertebrates. We reveal a general phenotypic dispersal syndrome across studied species, with dispersers being larger, more active and having a marked locomotion-oriented morphology and a strengthening of the link between dispersal and some phenotypic traits with environmental harshness. Our proof-of-concept metacommunity model further reveals cascading effects of context-dependent syndromes on the local and regional organisation of functional diversity. Our study opens new avenues to advance our understanding of the functioning of spatially structured populations, communities and ecosystems. Keywords: context-dependent dispersal; dispersal strategy; distributed experiment; predation risk; resource limitation

Published
2022

16. Brachylaima spp. (Trematoda) parasitant Cornu aspersum (Gastropoda) en France et risque potentiel pour la consommation humaine

Author

Gerard, Claudia, Ansart, Armelle, Decanter, Nolwenn, Martin, Marie-Claire, Dahirel, Maxime, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Cornu aspersum, Edible land snail, Human parasitosis, Prevalence, Brachylaima, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Trematode
Abstract

International audience; The edible land snail Cornu aspersum, native to the Mediterranean coastlines of North Africa, is widely distributed on most continents and often invasive in areas where introduction is recent. This species could contribute to the geographic spread of parasites as demonstrated for Brachylaima spp. These cosmopolitan trematodes may represent a threat to human health, like in Australia where Brachylaima cribbi infects humans. In this study, we demonstrate for the first time the occurrence of Brachylaima spp. in two French populations of C. aspersum, Thorigné-Fouillard (Ille-et-Vilaine), and Arçais (Deux-Sèvres), with an overall prevalence of 10.4% (Thorigné-Fouillard) and 73.3% (Arçais), respectively and a metacercarial intensity on average three times higher in Thorigné-Fouillard (37) than in Arçais (11). Cornu aspersum may act as a first and second intermediate host, as demonstrated in Arçais. The morphometrics of metacercariae, particularly the great body length about 2 mm, discriminate our Brachylaima species from those already described in C. aspersum (B. cribbi in Australia, and B. aspersae, B. llobregatensis and B. mascomai in Europe). Molecular analysis, based on 28S and COI, suggests the occurrence of two species in our study, one of which is probably Brachylaima mesostoma, an intestinal parasite of passeriform birds described in Central Europe. We underline the need for further research to identify species of Brachylaima in France and measure the health hazard of consuming field-collected snails.; L’escargot Cornu aspersum, originaire des côtes méditerranéennes d’Afrique du Nord, est largement répandu sur la plupart des continents et souvent invasif dans ses aires d’introduction récente. Cette espèce peut contribuer à l’expansion géographique de parasites comme démontré pour Brachylaima spp. Ces trématodes cosmopolites peuvent représenter une menace pour la santé comme en Australie où Brachylaima cribbi parasite l’espèce humaine. Dans cette étude, nous démontrons pour la première fois la présence de Brachylaima spp. dans deux populations françaises de C. aspersum, à Thorigné-Fouillard (Ille-et-Vilaine) et Arçais (Deux-Sèvres), avec une prévalence totale de 10.4 % (Thorigné-Fouillard) et 73.3 % (Arçais), et une intensité de métacercaires en moyenne trois fois plus importante à Thorigné-Fouillard (37) qu’à Arçais (11). Cornu aspersum peut jouer le rôle de premier et de second hôte intermédiaire, comme démontré à Arçais. La morphométrie des métacercaires, en particulier la grande taille corporelle d’environ 2 mm de long, suggèrent qu’il ne s’agit pas d’espèces de Brachylaima déjà décrites chez C. aspersum (B. cribbi en Australie et B. aspersae, B. llobregatensis et B. mascomai en Europe). L’analyse moléculaire, basée sur 28S et COI, suggère la présence de deux espèces dans notre étude, dont l’une est probablement Brachylaima mesostoma, un parasite intestinal d’oiseaux passeriformes décrit en Europe Centrale. Nous soulignons le besoin de recherche future pour identifier les espèces de Brachylaima présentes en France et mesurer le risque associé à la consommation d’escargots terrestres prélevés en milieu naturel.

Published
2020

17. Boldness and exploration are linked to shell morph but not environmental context in the snail Cepaea nemoralis

Author

Dahirel, Maxime, Gaudu, Valentin, and Ansart, Armelle

Abstract

Understanding the maintenance of individual behavioural variation (or animal personalities) in populations, and predicting its consequences, are key challenges in behavioural ecology. As individuals vary in their phenotype and experienced environment, they may experience different selective pressures favouring different optimal behaviours. Studying the (genetic) association between repeatable behaviour and other traits under selection may shed light on these selective pressures. We used the model snail Cepaea nemoralis to examine whether individual behavioural variation is associated with variation in shell morph, a key trait that has been extensively studied in relation to thermal tolerance and predator avoidance, and which is known to be under strict genetic control in this species. We quantified proxies of boldness and exploration in snails of three morphs coming from two contrasted thermal environments. We show that there are animal personalities in C. nemoralis, as both behaviours were repeatable at the individual level. Behavioural variation was associated with shell morph, with the darker morph (five-banded) being consistently shyer and slower to explore. There was no evidence that experienced thermal environment influenced behaviour at the individual level, whether we considered past environment or experimental temperature. Boldness and exploration were correlated at the individual level in a common syndrome. We discuss how these results are compatible with (but do not confirm) the pace of life syndrome hypothesis, and what they tell us about the type of selection exerted by predators. We also detail how our results hint to a genetic link between shell morph and behaviour, and the evolutionary implications of such a link. Finally, we discuss how our results combined with decades of evolutionary research make C. nemoralis a very valuable model to study the evolution of behaviour in response to environmental changes.

Published
2019
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24. Boldness and exploration vary between shell morphs but not environmental contexts in the snail Cepaea nemoralis.

Author

Dahirel, Maxime, Gaudu, Valentin, and Ansart, Armelle

Subjects
SNAILS, PHENOTYPES, GEOTHERMAL ecology, MULTILEVEL models
Abstract

Understanding the maintenance of among‐individual behavioral variation in populations and predicting its consequences are key challenges in behavioral ecology. Studying the association between repeatable behaviors and other traits under selection may shed light on the underlying selective pressures. We used the model snail Cepaea nemoralis to examine whether individual behavior is associated with shell morph, a key trait that has been extensively studied in the context of thermal tolerance and predator avoidance, and which is known to be under strict genetic control in this species. We quantified proxies of boldness and exploration in snails of three morphs coming from two habitats with different thermal contexts. We show that both behaviors were repeatable at the among‐individual level (within‐state Rboldness = 0.22 [95% credible interval: 0.15; 0.29]; Rexploration = 0.20 [0.15; 0.25]). Behavior was associated with shell morph, with the darker morph (five‐banded) being consistently shyer and slower to explore. There was no evidence that thermal environment of origin influenced behavior. Snails became faster when test temperature increased; we found no evidence morphs differed in their thermal response. Boldness and exploration were correlated among individuals, forming a syndrome (r = 0.28 [0.10; 0.46]). The link we find between morph and boldness is compatible with visual selection by avian predators, assuming a positive association between boldness and morphological defense (phenotypic compensation hypothesis). The fact morph‐behaviors associations are consistent across environments, despite selection on morph, hint to a possible underlying genetic origin. Finally, we discuss how our findings combined with decades of evolutionary research make C. nemoralis a very valuable model to study the evolution of behavior in response to environmental changes. [ABSTRACT FROM AUTHOR]

Published
2021
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25. Bottom-up and top-down control of dispersal across major organismal groups

Author

UCL - SST/ELI/ELIB - Biodiversity, Fronhofer, Emanuel A., Legrand, Delphine, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon, Bonte, Dries, Chaine, Alexis, Dahirel, Maxime, De Laender, Frederik, De Raedt, Jonathan, di Gesu, Lucie, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J., Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank, Schtickzelle, Nicolas, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Cote, Julien, UCL - SST/ELI/ELIB - Biodiversity, Fronhofer, Emanuel A., Legrand, Delphine, Altermatt, Florian, Ansart, Armelle, Blanchet, Simon, Bonte, Dries, Chaine, Alexis, Dahirel, Maxime, De Laender, Frederik, De Raedt, Jonathan, di Gesu, Lucie, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J., Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank, Schtickzelle, Nicolas, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, and Cote, Julien

Abstract

Ecology and evolution unfold in spatially structured communities, where dispersal links dynamics across scales. Because dispersal is multicausal, identifying general drivers remains challenging. In a coordinated distributed experiment spanning organisms from protozoa to vertebrates, we tested whether two fundamental determinants of local dynamics, top-down and bottom-up control, generally explain active dispersal. We show that both factors consistently increased emigration rates and use metacommunity modelling to highlight consequences on local and regional dynamics.

Published
2018

26. Bottom-up and top-down control of dispersal across major organismal groups

Author

Fronhofer, Emanuel A; https://orcid.org/0000-0002-2219-784X, Legrand, Delphine, Altermatt, Florian; https://orcid.org/0000-0002-4831-6958, Ansart, Armelle, Blanchet, Simon, Bonte, Dries; https://orcid.org/0000-0002-3320-7505, Chaine, Alexis, Dahirel, Maxime, De Laender, Frederik, De Raedt, Jonathan, di Gesu, Lucie, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J, Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank; https://orcid.org/0000-0003-0679-1045, Schtickzelle, Nicolas, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, Cote, Julien, Fronhofer, Emanuel A; https://orcid.org/0000-0002-2219-784X, Legrand, Delphine, Altermatt, Florian; https://orcid.org/0000-0002-4831-6958, Ansart, Armelle, Blanchet, Simon, Bonte, Dries; https://orcid.org/0000-0002-3320-7505, Chaine, Alexis, Dahirel, Maxime, De Laender, Frederik, De Raedt, Jonathan, di Gesu, Lucie, Jacob, Staffan, Kaltz, Oliver, Laurent, Estelle, Little, Chelsea J, Madec, Luc, Manzi, Florent, Masier, Stefano, Pellerin, Felix, Pennekamp, Frank; https://orcid.org/0000-0003-0679-1045, Schtickzelle, Nicolas, Therry, Lieven, Vong, Alexandre, Winandy, Laurane, and Cote, Julien

Abstract

Ecology and evolution unfold in spatially structured communities, where dispersal links dynamics across scales. Because dispersal is multicausal, identifying general drivers remains challenging. In a coordinated distributed experiment spanning organisms from protozoa to vertebrates, we tested whether two fundamental determinants of local dynamics, top-down and bottom-up control, generally explain active dispersal. We show that both factors consistently increased emigration rates and use metacommunity modelling to highlight consequences on local and regional dynamics.

Published
2018

30. Bottom-up and top-down control of dispersal across major organismal groups: a coordinated distributed experiment

Author

Fronhofer, Emanuel A., primary, Legrand, Delphine, additional, Altermatt, Florian, additional, Ansart, Armelle, additional, Blanchet, Simon, additional, Bonte, Dries, additional, Chaine, Alexis, additional, Dahirel, Maxime, additional, De Laender, Frederik, additional, De Raedt, Jonathan, additional, di Gesu, Lucie, additional, Jacob, Staffan, additional, Kaltz, Oliver, additional, Laurent, Estelle, additional, Little, Chelsea J., additional, Madec, Luc, additional, Manzi, Florent, additional, Masier, Stefano, additional, Pellerin, Felix, additional, Pennekamp, Frank, additional, Schtickzelle, Nicolas, additional, Therry, Lieven, additional, Vong, Alexandre, additional, Winandy, Laurane, additional, and Cote, Julien, additional

Published
2017
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31. Conservation at a slow pace: Terrestrial gastropods facing fost changing climate

Author

Nicolai, Annegret, Ansart, Armelle, Briand, Valerie, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), SEB, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
habitat alteration, species at risk, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, extreme events, drought resistance, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Cold tolerance, dispersal, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

34. Cornu aspersum : un escargot méditerranéen à la conquête du nouveau monde

Author

Guiller, Annie, Ansart, Armelle, Martin, Marie-Claire, Madec, Luc, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Briand, Valerie, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2014

35. How does habitat specialization influence dispersal? A comparative approach in European land snails

Author

Dahirel, Maxime, Olivier, E., Guiller, Annie, Martin, Marie-Claire, Madec, Luc, Ansart, Armelle, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), and Briand, Valerie

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

37. Habitat specialization and movement characteristics in European helicoid land snails: Implications for dispersal and foraging strategies

Author

Dahirel, Maxime, Olivier, E., Madec, Luc, Ansart, Armelle, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Briand, Valerie, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Published
2013

38. Slow but sure: Stage-dependent dispersal in the brown garden snail Cornu aspersum

Author

Dahirel, Maxime, Ansart, Armelle, Madec, Luc, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Briand, Valerie, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

39. Studying the interplay between dispersal behavior and reproduction in hermaphrodites, using land snails as models

Author

Dahirel, Maxime, Ansart, Armelle, Madec, Luc, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), International Society for Behavioral Ecology, Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), and Briand, Valerie

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

40. Dispersal strategies in the land snail Cornu aspersum: Sex-biased dispersal in a hermaphroditic species?

Author

Dahirel, Maxime, Ansart, Armelle, Madec, Luc, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), SERL, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), and Briand, Valerie

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

41. Relationship between supercooling ability and fresh mass in terrestrial shelled gastropods: A phylogenetic comparative approach

Author

Ansart, Armelle, Guiller, Annie, Madec, Luc, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Briand, Valerie, Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2011

42. Invasive Species Compendium: Cornu aspersum

Author

Ansart, Armelle, Guiller, Annie, Madec, Luc, and Briand, Valerie

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, mollusque, cornu aspersum, espèce invasive
Published
2009

43. Terrestrial gastropods: why they should provoke the interest of cryobiologists

Author

Ansart, Armelle, Vernon, Philippe, Briand, Valerie, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE], [SDV.BID.EVO] Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE], ComputingMethodologies_GENERAL, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment
Abstract

Poster

Published
2005

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