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Auteur David A. Bohan |
Documents disponibles écrits par cet auteur (3)
Affiner la rechercheResponses of plants and invertebrate trophic groups to contrasting herbicide regimes in the Farm Scale Evaluations of genetically modified herbicide–tolerant crops / Cathy Hawes in Philosophical Transactions Royal Society London B, 358 (1439) (29/11/2003)
Titre : Responses of plants and invertebrate trophic groups to contrasting herbicide regimes in the Farm Scale Evaluations of genetically modified herbicide–tolerant crops Type de document : Imprimé Auteurs : Cathy Hawes ; Alison J. Haughton ; Juliet L. Osborne ; D. B. Roy ; S. J. Clark ; J. N. Perry ; Peter Rothery ; David A. Bohan ; David R. Brooks ; Gillian T. Champion ; Alan Dewar ; Matthew S. Heard ; I. P. Woiwod ; R. E. Daniels ; Mark Young ; A. M. Parish ; Rod J. Scott ; Leslie George Firbank ; Geoffrey R. Squire Année de publication : 2003 Article en page(s) : 1899-1913 Langues : Anglais (eng) Résumé : Effects of genetically modified herbicide-tolerant (GMHT) and conventional crop management on invertebrate trophic groups (herbivores, detritivores, pollinators, predators and parasitoids) were compared in beet, maize and spring oilseed rape sites throughout the UK. These trophic groups were influenced by season, crop species and GMHT management. Many groups increased twofold to fivefold in abundance between early and late summer, and differed up to 10-fold between crop species. GMHT management superimposed relatively small (less than twofold), but consistent, shifts in plant and insect abundance, the extent and direction of these effects being dependent on the relative efficacies of comparable conventional herbicide regimes. In general, the biomass of weeds was reduced under GMHT management in beet and spring oilseed rape and increased in maize compared with conventional treatments. This change in resource availability had knock-on effects on higher trophic levels except in spring oilseed rape where herbivore resource was greatest. Herbivores, pollinators and natural enemies changed in abundance in the same directions as their resources, and detritivores increased in abundance under GMHT management across all crops. The result of the later herbicide application in GMHT treatments was a shift in resource from the herbivore food web to the detritivore food web. The Farm Scale Evaluations have demonstrated over 3 years and throughout the UK that herbivores, detritivores and many of their predators and parasitoids in arable systems are sensitive to the changes in weed communities that result from the introduction of new herbicide regimes. Lien pérenne : DOI : 10.1098/rstb.2003.1406 En ligne : https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2003.1406 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=141305
in Philosophical Transactions Royal Society London B > 358 (1439) (29/11/2003) . - 1899-1913Hawes, Cathy, Haughton, Alison J., Osborne, Juliet L., Roy, D. B., Clark, S. J., Perry, J. N., Rothery, Peter, Bohan, David A., Brooks, David R., Champion, Gillian T., Dewar, Alan, Heard, Matthew S., Woiwod, I. P., Daniels, R. E., Young, Mark, Parish, A. M., Scott, Rod J., Firbank, Leslie George, Squire, Geoffrey R. 2003 Responses of plants and invertebrate trophic groups to contrasting herbicide regimes in the Farm Scale Evaluations of genetically modified herbicide–tolerant crops. Philosophical Transactions Royal Society London B, 358(1439): 1899-1913.
Titre : Les services écosystémiques dans les espaces agricoles : Paroles de chercheur(e)s Type de document : Imprimé Auteurs : Métaprogramme Inra Ecoserv, Auteur ; Jean-Michel Salles, Auteur ; Jean-Pierre Amigues, Auteur ; Thomas Cordonnier, Auteur ; Valentine Lafond, Auteur ; David A. Bohan, Auteur ; Pascal Carrère, Auteur ; Philippe Lemanceau, Auteur ; Mickaël Henry (1977-), Auteur ; Marc Deconchat, Auteur ; Aude Vialatte, Auteur ; Antoine Brin (1976-), Auteur ; David Sherren, Auteur Année de publication : 2020 Importance : 156 p. Langues : Français (fre) Résumé : Évaluer la biodiversité et les services écosystémiques : pourquoi, comment, pour quels résultats, avec quelles limites ? Jean-Pierre Amigues (Inra-UMR TSE-Lerna) Gérer les services écosystémiques : le cas de l'eau et des milieux aquatiques David A. Bohan (Inra-UMR Agroécologie) Networking Agro-Ecology-reconciling the different needs for ecological functions provided by biodiversity Pascal Carrère (Inra-UREP) Valoriser la diversité des services rendus par la prairie : une voie pour assurer la durabilité des systèmes d'élevage herbagers ? Philippe Lemanceau (Inra-UMR Agroécologie) La biodiversité des sols : un fantastique patrimoine à préserver et valoriser par les services écosystémiques Mickaël Henry (Inra-UR Abeilles et Environnement) Promouvoir la pollinisation entomophile : une vision à large échelle Marc Deconchat, Aude Vialatte, Antoine Brin, David Sheeren (Inra-UMR Dynafor) Concepts et méthodes de l'écologie des paysages pour aider à mieux gérer les services écosystémiques . Lien pérenne : DOI : 10.15454/nwq9-zk60_book / HAL : hal-02537115
Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144427 Métaprogramme Inra Ecoserv, Salles, Jean-Michel, Amigues, Jean-Pierre, Cordonnier, Thomas, Lafond, Valentine, Bohan, David A., Carrère, Pascal, Lemanceau, Philippe, Henry, Mickaël (1977-), Deconchat, Marc, Vialatte, Aude, Brin, Antoine (1976-), Sherren, David , 2020. Les services écosystémiques dans les espaces agricoles : Paroles de chercheur(e)s. , . 156 pp.Documents numériques
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Titre : Weed seed choice by carabid beetles (Coleoptera: Carabidae): Linking field measurements with laboratory diet assessments Type de document : Imprimé Auteurs : Sandrine Petit (1969-) ; Aline Boursault ; David A. Bohan Année de publication : 2014 Article en page(s) : 615-620 Langues : Anglais (eng) Mots-clés : Capsella bursa-pastoris (L.) Medik. Viola arvensis Résumé : Carabid beetles could potentially provide a number of ecosystem services in arable fields, including the regulation of weeds by eating seeds. Spatio-temporal variability in the incidence of predation combined with a limited understanding of the interactions between carabids and seed predation, currently limits our ability to assess the effectiveness of this service. We carried out a long-term field study of carabid communities and the incidence of predation of the seeds of 5 species of weeds and laboratory cafeteria choice-tests to quantify the preferences of the most abundant species of seed-eating carabid for the seeds of 10 species of weeds. The field study revealed important temporal variation both in carabid activity-density and seed predation, with the seed of Viola arvensis and Capsella bursa-pastoris being particularly preferred by the carabids. The laboratory cafeteria tests confirmed the predation preferences measured in the field, in showing strong preferences by both Pterostichus melanarius and Pseudoophonus rufipes for the seed of V. arvensis. The percentage predation of the seed of V. arvensis was associated with the activity-density of carabids, while that of the seed of C. bursa-pastoris was not. Integrating laboratory-measured daily consumption rates, per carabid taxa, into models improved the ability to predict the intensity of predation of the seed of V. arvensis based on the composition of carabid communities. Lien pérenne : DOI : 10.14411/eje.2014.086 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150251
in European Journal of Entomology > 111 (5) (2014) . - 615-620Petit, Sandrine (1969-), Boursault, Aline, Bohan, David A. 2014 Weed seed choice by carabid beetles (Coleoptera: Carabidae): Linking field measurements with laboratory diet assessments. European Journal of Entomology, 111(5): 615-620.Documents numériques
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