Landscape and microhabitat features determine small mammal abundance in forest patches in agricultural landscapes
Autor: | Francesco Boscutti, Luca Dorigo, Maurizia Sigura |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Wood structure
Apodemus Landscape pattern Context (language use) Generalist and specialist species General Biochemistry Genetics and Molecular Biology Ecosystem services Abundance (ecology) Small mammals Spatial and Geographic Information Science Ecosystem Agricultural landscape Microhabitat features Agricultural Science Relative species abundance Animal Behavior Ecology General Neuroscience General Medicine Understory Geography Habitat Medicine General Agricultural and Biological Sciences |
Zdroj: | PeerJ PeerJ, Vol 9, p e12306 (2021) |
Popis: | Intensification of agricultural landscapes represent a major threat for biodiversity conservation also affecting several ecosystem services. The natural and semi-natural remnants, available in the agricultural matrix, represent important sites for small mammals and rodents, which are fundamental for sustaining various ecosystem functions and trophic chains. We studied the populations of two small mammals (Apodemus agrarius, A. sylvaticus) to evaluate the effects of landscape and habitat features on species abundance along a gradient of agricultural landscape intensification. The study was performed in Friuli Venezia Giulia (north-eastern Italy) during 19 months, in 19 wood remnants. Species abundance was determined using Capture-Mark-Recapture (CMR) techniques. In the same plots, main ecological parameters of the habitat (at microhabitat and patch scale) and landscape were considered. Abundance ofA. agrariusincreased in landscapes with high extent of permanent crops (i.e., orchards and poplar plantations) and low content of undecomposed litter in the wood understory. Instead,A. sylvaticus, a more generalist species, showed an opposite, albeit less strong, relationship with the same variables. Both species were not affected by any landscape structural feature (e.g., patch shape, isolation). Our findings showed that microhabitat features and landscape composition rather than wood and landscape structure affect populations’ abundance and species interaction. The opposite response of the two study species was probably because of their specific ecological requirements. In this light, conservation management of agricultural landscapes should consider the ecological needs of species at both landscape and habitat levels, by rebalancing composition patterns in the context of ecological intensification, and promoting a sustainable forest patch management. |
Databáze: | OpenAIRE |
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