Résumé
Lake surfaces are warming worldwide, raising concerns about lake organism responses to thermal habitat changes. Species may cope with temperature increases by shifting their seasonality or their depth to track suitable thermal habitats, but these responses may be constrained by ecological interactions, life histories or limiting resources. Here we use 32 million temperature measurements from 139 lakes to quantify thermal habitat change (percentage of non-overlap) and assess how this change is exacerbated by potential habitat constraints. Long-term temperature change resulted in an average 6.2% non-overlap between thermal habitats in baseline (1978–1995) and recent (1996–2013) time periods, with non-overlap increasing to 19.4% on average when habitats were restricted by season and depth. Tropical lakes exhibited substantially higher thermal non-overlap compared with lakes at other latitudes. Lakes with high thermal habitat change coincided with those having numerous endemic species, suggesting that conservation actions should consider thermal habitat change to preserve lake biodiversity.
Auteurs, date et publication :
Auteurs Benjamin M. Kraemer , Rachel M. Pilla , R. Iestyn Woolway , Orlane Anneville , Syuhei Ban , William Colom-Montero , Shawn P. Devlin , Martin T. Dokulil , Evelyn E. Gaiser , K. David Hambright , Dag O. Hessen , Scott N. Higgins , Klaus D. Jöhnk , Wendel Keller , Lesley B. Knoll , Peter R. Leavitt , Fabio Lepori , Martin S. Luger , Stephen C. Maberly , Dörthe C. Müller-Navarra
Publication : Nature Climate Change
Date : 2021
Volume : 11
Issue : 6
Pages : 521-529
Catégorie(s)
#INRAE #OLAAuteurs, date et publication :
Auteurs Claire Duchet , Marília Mitie Inafuku , Thierry Caquet , Michel Larroque , Evelyne Franquet , Christophe Lagneau , Laurent Lagadic
Publication : Ecotoxicology and Environmental Safety
Date : 2011
Volume : 74
Issue : 4
Pages : 800-810
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Victor Frossard , Laurent Millet , Valérie Verneaux , Jean-Philippe Jenny , Fabien Arnaud , Michel Magny , Jérôme Poulenard , Marie-Elodie Perga
Publication : Journal of Paleolimnology
Date : 2025
Volume : 50
Issue : 3
Pages : 257-273
Catégorie(s)
#INRAE #OLARésumé
Croplands remain poorly studied ecosystems in terms of total hydroxyl radical (OH) reactivity, especially when compared to forests. As part of the COV3ER project, total OH reactivity (ROH), defined as the total loss rate of OH due to its reaction with reactive species in the atmosphere, was characterized in a rapeseed field (Grignon, France) during the blooming season in April 2017. Measurements were performed in a dynamic chamber as well as in ambient air using the Comparative Reactivity Method (CRM). Complementary measurements of organic (including a proton transfer reaction quadrupole ion–time of flight mass spectrometry, PTRQi-ToFMS) and inorganic compounds were also performed in order to calculate the expected OH reactivity and evaluate the missing fraction. Measured ROH varied diurnally in the dynamic chamber (mROHchamber) with maxima around 20 to 30 s−1 at midday and minima during dark hours, following the variability of the enclosed branch VOCsrapeseed, which is light- and temperature-dependent. Oxygenated VOCs were the major compounds emitted by the rapeseed crop. However, in terms of contribution to OH reactivity, isoprene accounted for 40% during the daytime, followed by acetaldehyde (21%) and monoterpenes (18%). The comparison between mROHchamber and calculated ROH (cROHchamber) exhibited little or no difference during dark hours, whereas a maximum difference appeared around midday, highlighting a significant missing fraction (46% on average during daytime) mainly related to biogenic temperature- and/or light-dependent emissions.
Auteurs, date et publication :
Auteurs Sandy Bsaibes , Valérie Gros , François Truong , Christophe Boissard , Dominique Baisnée , Roland Sarda-Esteve , Nora Zannoni , Florence Lafouge , Raluca Ciuraru , Pauline Buysse , Julien Kammer , Lais Gonzaga Gomez , Benjamin Loubet
Publication : Atmosphere
Date : 2020
Volume : 11
Issue : 3
Pages : 261
Catégorie(s)
#INRAE #PT-RMSRésumé
In temperate fish polyculture, common carp (Cyprinus carpio) and roach (Rutilus rutilus) are two fish species commonly reared in the same ponds. In the natural environment, these two species are considered omnivorous and may compete for food sources. However, few is known about their trophic behavior in polyculture ponds. The aim of our study was to use carbon and nitrogen stable isotope analysis to characterize trophic niche partitioning between both fish species reared in semi-intensive (fed) and extensive (non-fed) ponds. Fish growth performance was higher in semi-intensive than in extensive ponds. In semi-intensive ponds, δ13C and δ15N values of fish indicated that carp consumed mainly formulated feed, whereas roach also consumed natural food sources. In extensive ponds, δ13C and δ15N values of carp and roach indicated that both fish species did not use the same food sources. Regardless of the type of pond, standard ellipse areas, proxies of the estimated trophic niche size, were significantly smaller for carp than for roach and did not overlap, confirming that roach had more trophic plasticity than carp. Results of this study confirmed that carp and roach are good candidates to be rear in the same pond because they are able to adapt their trophic behavior to reduce trophic competition.
Auteurs, date et publication :
Auteurs Sarah Nahon , Jean-Marc Roussel , Christophe Jaeger , Christophe Menniti , Philippe Kerhervé , Jean-Michel Mortillaro , Joël Aubin
Publication : Aquaculture
Date : 2020
Volume : 522
Pages : 735162
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Julien Kammer , Céline Décuq , Dominique Baisnée , Raluca Ciuraru , Florence Lafouge , Pauline Buysse , Sandy Bsaibes , Ben Henderson , Simona M. Cristescu , Rachid Benabdallah , Varunesh Chandra , Brigitte Durand , Oliver Fanucci , Jean-Eudes Petit , Francois Truong , Nicolas Bonnaire , Roland Sarda-Estève , Valerie Gros , Benjamin Loubet
Publication : Science of The Total Environment
Date : 2025
Volume : 712
Pages : 135598
Catégorie(s)
#INRAE #PT-RMSAuteurs, date et publication :
Auteurs Arnaud Gaigher , Sophie Launey , Emilien Lasne , Anne-Laure Besnard , Guillaume Evanno
Publication : Conservation Genetics Resources
Date : 2012
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Anne Mercier , Joanne Bertaux , Jérôme Lesobre , Kevin Gravouil , Julien Verdon , Christine Imbert , Eric Valette , Yann Héchard
Publication : Biofouling
Date : 2016
Volume : 32
Issue : 3
Pages : 287-299
Catégorie(s)
#Genosol #INRAEAuteurs, date et publication :
Auteurs Karen Baumann , Muhammad Sanaullah , Abad Chabbi , Marie-France Dignac , Gérard Bardoux , Markus Steffens , Ingrid Kögel-Knabner , Cornelia Rumpel
Publication : Soil Biology and Biochemistry
Date : 2025
Volume : 67
Pages : 55–61
Catégorie(s)
#ACBB #ACBB Lusignan #INRAEAuteurs, date et publication :
Auteurs Muhammad Sanaullah , Abad Chabbi , Cornelia Rumpel , Yakov Kuzyakov
Publication : Soil Biology and Biochemistry
Date : 2025
Volume : 55
Pages : 132–139