Response of the small mammal community to changes in western French agricultural landscapes
Response of the small mammal community to changes in western French agricultural landscapes
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DOI：
10.1023/a:1024452930326
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发表时间：
2003-04-01
影响因子：
5.2
通讯作者：
Burel, F
中科院分区：
文献类型：
--
作者：
de la Peña, NM;Butet, A;Burel, F
我们研究了小哺乳动物社区（啮齿动物和鼩）最近的变化，农业系统的法国西部景观的反应。在代表该地区耕作制度多样性的12个地点开展了工作。在每个网站的小哺乳动物组合的特点进行了评估，使用仓鸮（草鸮）颗粒分析。小哺乳动物的数据和景观描述符之间的关系进行了共惯性分析。小型哺乳动物群落的丰富度和具体组成不受耕作程度的影响，但可以观察到物种频率的变化。一些物种的流行使我们能够区分三个主要组合的特点是低，中，高强度的景观。这些物种的地位和生活特征表明，集约化的农业有负面影响的密度稀有和栖息地的专业物种，而它有利于栖息地的通才物种，其中一些被称为表现出波动的密度。农业集约化的两种主要方式（玉米与其他作物）没有表现出任何显着的关系与物种组合。我们的研究结果使我们有机会提出建议，农艺和保护问题，可能会出现这些变化的农业在法国西部。
We studied the response of the small mammal community ( rodents and shrews) to recent changes in agricultural systems of western French landscapes. Work was conducted on twelve sites representative of the diversity of farming systems in this region. The characteristics of small mammal assemblages in each site were assessed using Barn Owl (Tyto alba) pellet analysis. Relationships between small mammal data and landscape descriptors were performed through co-inertia analysis. Richness and specific composition of the small mammal community were not affected by the degree of cultivation but variations in species frequency could be observed. The prevalence of some species allowed us to distinguish threemain assemblages which were characteristic of low, medium, and high intensified landscapes. Status and life traits of these species showed that intensification of agriculture has negative effects on density of rare and habitat-specialist species while it favours habitat-generalist species, some of them being known to exhibit fluctuating density. The two main ways of agricultural intensification ( maize vs. other crops) did not show any significant relationships with species assemblages. Our results gave us the opportunity to suggest recommendations on agronomical and conservation problems that may arise from these changes of agriculture in western France.