Simon Blanchet

Station d’Écologie Théorique et Expérimentale

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Géraldine Loot

Hasselt University

Charlotte Veyssière

Hasselt University

Jérôme G. Prunier

Station d’Écologie Théorique et Expérimentale

Olivier Rey

Centre National de la Recherche Scientifique

Julien Cucherousset

Université Toulouse III - Paul Sabatier

Ivan Paz‐Vinas

Université Claude Bernard Lyon 1

Gaël Grenouillet

Université de Toulouse

Sébastien Brosse

Université de Toulouse

Nicolas Poulet

French National Agency for Water and Aquatic Environments

Allan Raffard

UCLouvain

Cooperative Institutions

Centre National de la Recherche Scientifique

273

Université Toulouse III - Paul Sabatier

144

Institut de Recherche pour le Développement

133

Université de Toulouse

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Laboratoire Evolution et Diversite Biologique

Université de Montpellier

Station d’Écologie Théorique et Expérimentale

Sorbonne Université

Institut National Polytechnique de Toulouse

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Dataset Artificial warming decreases heterotroph densities and trophic transfer efficiency

Figshare (2023)

Simon Bazin Virginie Diouloufet Ange Molina Tiphaine Peroux Juan José Montoya

This file holds the data and scripts used in the article "Artificial warming decreases heterotroph densities and trophic transfer efficiency".Data are available in files whose name begins with the prefix "df". The variables names "date" and "date_c" represent the sampling date in discrete or continue value, respectively. "mesocosm_ID" is the identity of the mesocosm. "fish" represent the fish treatment (NF for No Fish, LB for Large-bodied fish and SB for Small-bodied fish). "warming" is the temperature treatment (NW for no warming, W for warming). "tmean15" is the mean temperature of the 15 days prior to the sampling date. "compartment", "class", "order" and "taxa" represent the taxonomy of the organisms. "N_l" is the density per liter. "C_mug_l" is the carbon biomass in microgram per liter. "S" and "H" are the species richness and the Shannon diversity index, respectively. "ZP" is the zooplankton:phytoplankton biomass ratio. The variables in df_bss.csv file are described in the main text of the article.Files with a numerical prefix are the scripts used for the statistical analyzes (multivariate analyzes, ecological index, community density and biomass, Predator Prey Biomass Ratio and Biomass Size Spectra).

10.6084/m9.figshare.23925291.v7

Cite

Citations (0)

Dataset Artificial warming decreases heterotroph densities and predator-prey biomass ratio in aquatic systems

Figshare (2023)

Simon Bazin Virginie Diouloufet Ange Molina Tiphaine Peroux Juan José Montoya

This file holds the data and scripts used in the article "Artificial warming decreases heterotroph densities and predator-prey biomass ratio in aquatic systems".Data are available in files whose name begins with the prefix "df". The variables names "date" and "date_c" represent the sampling date in discrete or continue value, respectively. "mesocosm_ID" is the identity of the mesocosm. "fish" represent the fish treatment (NF for No Fish, LB for Large-bodied fish and SB for Small-bodied fish). "warming" is the temperature treatment (NW for no warming, W for warming). "tmean15" is the mean temperature of the 15 days prior to the sampling date. "compartment", "class", "order" and "taxa" represent the taxonomy of the organisms. "N_l" is the density per liter. "C_mug_l" is the carbon biomass in microgram per liter. "S" and "H" are the species richness and the Shannon diversity index, respectively. "ZP" is the zooplankton:phytoplankton biomass ratio. The variables in df_bss.csv file are described in the main text of the article.Files with a numerical prefix are the scripts used for the statistical analyzes (multivariate analyzes, ecological index, community density and biomass, Predator Prey Biomass Ratio and Biomass Size Spectra).

10.6084/m9.figshare.23925291

Cite

Citations (0)

Étude de l’efficacité de la restauration de la continuité écologique utilisant la différenciation génétique au sein de populations de poissons

Simon Blanchet Jérôme G. Prunier Sylvie Tomanová Olaf Mercier

Source

Cite

Citations (0)

Competitive interactions between native and exotic salmonids: a combined field and laboratory demonstration

Ecology Of Freshwater Fish (2007)

Simon Blanchet Géraldine Loot Gaël Grenouillet Sébastien Brosse

Abstract – We studied the impact of two exotic salmonid species (brook trout, Salvelinus fontinalis and rainbow trout, Oncorhynchus mykiss ) on native brown trout ( Salmo trutta fario ) habitat, growth and survival. Habitat selection and vertical distribution between young‐of‐the‐year of the three species were examined in a stream aquarium under different sympatric and allopatric combinations. In addition, similar species combinations were introduced in a Pyrenean mountain stream (southwest France) in order to extend laboratory results to growth and apparent survival. Both laboratory and field results indicated that rainbow trout significantly affected native brown trout habitat selection and apparent survival. On the contrary, brown trout habitat, growth and apparent survival were hardly affected by brook trout. These results support the idea that rainbow trout negatively influence native brown trout, and that competition could influence the outcome of fish biological invasions in freshwater ecosystems.

Brown trout

Fontinalis

10.1111/j.1600-0633.2006.00205.x

Cite

Citations (118)

Does range expansion modify trait covariation? A study of a northward expanding dragonfly

Oecologia (2020)

Allan Raffard Lieven Therry Fia Finn Kamilla Koch Tomas Brodin

Trait

Trade-off

Camouflage

10.1007/s00442-020-04592-1

Cite

Citations (3)

When not to copy: female fruit flies use sophisticated public information to avoid mated males

Scientific Reports (2012)

Adeline Loyau Simon Blanchet Pauline Van Laere Jean Clobert Étienne Danchin

Semen limitation (lack of semen to fertilize all of a female's eggs) imposes high fitness costs to female partners. Females should therefore avoid mating with semen-limited males. This can be achieved by using public information extracted from watching individual males' previous copulating activities. This adaptive preference should be flexible given that semen limitation is temporary. We first demonstrate that the number of offspring produced by males Drosophila melanogaster gradually decreases over successive copulations. We then show that females avoid mating with males they just watched copulating and that visual public cues are sufficient to elicit this response. Finally, after males were given the time to replenish their sperm reserves, females did not avoid the males they previously saw copulating anymore. These results suggest that female fruit flies may have evolved sophisticated behavioural processes of resistance to semen-limited males and demonstrate unsuspected adaptive context-dependent mate choice in an invertebrate.

Public information

Mating preferences

Female sperm storage

10.1038/srep00768

Cite

Citations (52)

From current distinctiveness to future homogenization of the world's freshwater fish faunas

Diversity and Distributions (2014)

Sébastien Villéger Simon Blanchet Olivier Beauchard Thierry Oberdorff Sébastien Brosse

Abstract Aim Assessing the consequences of a future increase in non‐native species introductions and native species extirpations on taxonomic similarity among fish faunas. Location World‐wide. Methods We designed 42 scenarios of future species introductions and extirpations to simulate future fish composition for 1054 river basins. Using these simulated future compositions, we computed the change in taxonomic similarity among pairs of fish faunas from historical to future situation at the river basin, biogeographic realm and world scales. Results According to all our scenarios, taxonomic similarity among fish faunas will strongly increase in the future at the three spatial scales considered. Fish faunas from the Southern Hemisphere, which are currently the less affected by taxonomic homogenization, are forecasted to show the steepest changes. Our scenarios also reveal that non‐native species introductions will account for most of the predicted changes, whereas the effect of native species extirpations will be weak. Main conclusions The predicted future taxonomic homogenization will blur the current high level of taxonomic dissimilarity among freshwater fish faunas, and therefore, imperil the conservation programmes based on beta‐diversity mapping.

Fresh water fish

Taxonomic rank

Homogenization

Freshwater ecosystem

Optimal distinctiveness theory

10.1111/ddi.12242

Cite

Citations (37)

Utilisation de l'ADN ancien pour la rétro-observation des espèces et la compréhension des processus évolutifs et écologiques dans les lacs d'altitude

HAL (Le Centre pour la Communication Scientifique Directe) (2020)

Morgane Gibert Simon Blanchet Ludovic Orlando Didier Galop

Finance par l’Observatoire Hommes Milieux (OHM) du Haut-Vicdessos et initie en 2018 dans une demarche interdisciplinaire s’appuyant sur la collaboration d’anthropologues biologistes, de geographes et de geneticiens des populations, le programme intitule « Retro-observation des especes par le Proxy ADN ancien: apport de l'etude de la biodiversite du passe a la comprehension des processus evolutifs et ecologiques dans les lacs d'altitude » (AmbiPyr : Ancient Molecular Biodiversity in high mountain lakes in Pyrenees) vise a developper une methodologie originale reposant sur l'analyse de l'ADN ancien au sein des archives sedimentaires afin de contribuer a la caracterisation de la biodiversite ancienne des lacs et des interactions Homme-Milieux. Ce projet s’inscrit dans la continuite des projets DYVAH et FISH precedemment conduit au sein de l’OHM Vicdessos. L'objectif est d'analyser l'impact de l'Homme sur ses environnements qu'il s'agisse par exemple du pastoralisme ou d’evenements plus recents tels que l'empoissonnement des lacs. Le seminaire de l'OHM des 7 et 8 janvier 2020 a ete l’occasion de presenter les approches envisagees et premiers tests, a savoir une approche par metabarcoding pour une vision globale de la biodiversite passee completee par le suivi d'especes cibles realise par sequencage apres capture (hybridation de sondes specifiques).

Source

Cite

Citations (0)

Data From: Inferring Causalities In Landscape Genetics: An Extension Of Wright'S Causal Modeling To Distance Matrices

Zenodo (CERN European Organization for Nuclear Research) (2017)

Lisa Fourtune Jérôme G. Prunier Ivan Paz‐Vinas Géraldine Loot Charlotte Veyssière

Data files from Inferring causalities in landscape genetics: An extension of Wright's causal modeling to distance matrices.

Wright

10.5281/zenodo.1004721

Cite

Citations (0)

Dispersal syndromes and the use of life‐histories to predict dispersal

Evolutionary Applications (2013)

Virginie M. Stevens Audrey Trochet Simon Blanchet Sylvain Moulhérat Jean Clobert

Due to its impact on local adaptation, population functioning or range shifts, dispersal is considered a central process for population persistence and species evolution. However, measuring dispersal is complicated, which justifies the use of dispersal proxies. Although appealing, and despite its general relationship with dispersal, body size has however proven unsatisfactory as a dispersal proxy. Our hypothesis here is that, given the existence of dispersal syndromes, suites of life-history traits may be alternative, more appropriate proxies for dispersal. We tested this idea by using butterflies as a model system. We demonstrate that different elements of the dispersal process (i.e., individual movement rates, distances, and gene flow) are correlated with different suites of life-history traits: these various elements of dispersal form separate syndromes and must be considered real axes of a species' niche. We then showed that these syndromes allowed accurate predictions of dispersal. The use of life-history traits improved the precision of the inferences made from wing size alone by up to five times. Such trait-based predictions thus provided reliable dispersal inferences that can feed simulation models aiming at investigating the dynamics and evolution of butterfly populations, and possibly of other organisms, under environmental changes, to help their conservation.

Trait

Life History Theory

Local adaptation

10.1111/eva.12049

Cite

Citations (119)