How landscape structure, land-use intensity and habitat diversity affect components of total arthropod diversity in agricultural landscapes
2007
Hendrickx, Frédéric | Maelfait, Jean-Pierre | van Wingerden, Walter | Schweiger, Oliver | Speelmans, Marjan | Aviron, Stéphanie | Augenstein, Isabel | Billeter, Regula | Bailey, Debra | Bukacek, Roman | Burel, Francoise | Diekotter, T. | Dirksen, Jolanda | Herzog, Felix | Liira, J. | Roubalova, M. | Vadomme, Viki | Bugter, Rob | Terrestrial Ecology Unit (TEREC) (TEREC) ; State University of Ghent | Alterra Green World Research (AGWR) ; Wageningen University and Research [Wageningen] (WUR) | Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ) | Agroscope FAL Reckenholz (AGROSCOPE) ; Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich) | Swiss Federal Institute of Technology (ETH) ; Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich) | Nature Conservation Authority (NCA) ; Nature Conservation Authority | Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO) ; Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des sciences de l'environnement de Rennes (OSERen) ; 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) | Institute of Botany and Ecology ; Faculty of Science and Technology [University of Tartu] ; Tartu Ülikool = University of Tartu [Estonie]-Tartu Ülikool = University of Tartu [Estonie] | Institute of Forest Ecosystem Research (IFER) ; Institute of Foret Ecosystem Research
International audience
اظهر المزيد [+] اقل [-]إنجليزي. 1. Agricultural intensification poses a serious threat to biodiversity as a consequence of increased land-use intensity, decreased landscape heterogeneity and reduced habitat diversity. Although there is interest in the preservation of total species richness of an agricultural landscape (γ diversity), the effects of intensification have been assessed primarily by species richness at a local scale (α diversity). This ignores species richness between local communities (β diversity), which is an important component of total species richness. 2. In this study, measures of land-use intensity, landscape structure and habitat diversity were related to γ, α and β diversity of wild bees (Apoidea), carabid beetles (Carabidae), hoverflies (Syrphidae), true bugs (Heteroptera) and spiders (Araneae) within 16 local communities in 24 temperate European agricultural landscapes. 3. The total landscape species richness of all groups was most strongly affected by increased proximity of semi-natural habitat patches. Bees also decreased in landscapes with a high intensity of farmland management, demonstrating additive effects of both factors. 4. Separating total species diversity into components, the decrease in total species richness could be attributed primarily to a decrease in species diversity between local communities. Species richness of the local communities of all investigated groups decreased with increasing land-use intensity and, in the case of spiders, decreasing proximity of the semi-natural habitat patches. 5. The effect of increased habitat diversity appeared to be of secondary importance to total species richness but caused a shift in the relative contribution of α and β diversity towards the latter.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique