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Biodiversité associée aux pâturages de moutons européens

Authors: Rosa García, Rocio; Peric, Tanja;

Biodiversité associée aux pâturages de moutons européens

Abstract

We analysed the biodiversity of foliage arthropods in nine sheep grazed pasturelands in five European countries. During the maximum flowering period in 2018, entomofauna was collected in 4-6 areas within each pasture, performing 6 transects/area and 25 sweeps per transect. Multivariate analyses tested the differences in total arthropod community composition among degrees of intensification, bioregions and types of pastures. A total of 51,474 arthropods from 3 classes, 17 orders and 95 taxonomical groups were recorded. Univariate analyses revealed that total arthropod abundance was higher in extensive than in intensive systems (P<0.01). It also differed between bioregions (higher in Alpine than in Continental, P<0.05) and between types of pastures (higher in mountain than in lowland pastures where animals are supplemented, P<0.05). Total taxa richness was not influenced by any of the three factors. However, multivariate analyses indicated that community composition differed among intensive and extensive systems, bioregions and types of pastures (P<0.001). The greatest differences occurred between Alpine and Mediterranean (P<0.001), and Mediterranean and Continental pastures (P<0.05), as well as between lowland seminatural and improved pastures (P<0.05), and seminatural and mountain pastures (P<0.001). These results reveal the complex and varied communities associated to the diverse sheep systems and valorise the role of the more extensive, mountain and natural pastures for the conservation of biodiversity in sheep grazed areas.

Nous avons analysé la biodiversité des arthropodes du feuillage dans neuf pâturages situés dans cinq pays européens et pâturés par des moutons. La faune a été collectée dans 4-6 zones de chaque pâturage, effectuant 6 transects/zone et 25 balayages/transect. 51 474 arthropodes de 3 classes, 17 ordres et 95 groupes taxonomiques ont été enregistrés. Des analyses univariées ont révélé que l’abondance d’arthropodes était plus élevée dans les systèmes extensifs que dans les intensifs (P<0,01). Il diffère également entre les biorégions (plus élevées dans les Alpes que dans les Continentales, P<0,05) et entre les types de pâturages (plus élevées dans les pâturages de montagne que dans les plaines où les animaux sont supplémentés, P<0,05). La richesse totale des taxons n’a pas été influencée par aucun des trois facteurs. Les analyses multivariées ont indiqué que la composition de la communauté différait entre les systèmes intensifs et extensifs, les biorégions et les types de pâturages (P<0,001). Les différences les plus marquées ont été observées entre les pâturages alpins et méditerranéens (P<0,001), méditerranéens et continentaux (P<0,05), ainsi qu’entre les pâturages semi-naturels et améliorés des plaines (P<0,05). Ces résultats révèlent les communautés complexes et variées associées aux divers systèmes ovins et valorisent le rôle des pâturages plus étendus, montagnards et naturels, pour la conservation de la biodiversité dans les zones de pâturage ovin.

Country
Slovenia
Related Organizations
Keywords

La durabilité, Sustainability, La biodiversité, La gestion, Biodiversity, Arthropods, Management, Arthropodes

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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Sustainable Development Solutions Network - Greece