A hierarchical matrix model to assess the impact of habitat fragmentation on population dynamics: an elasticity analysis

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• 作者：Jean-Baptiste Pichancourt ; Franç ; oise Burel and Pierre Auger
• 关键词：Abax parallelepipedus ; Wood fragmentation ; Spatial Leslie-type model ; Time scales ; SLOSS ; Asymptotic population growth rate ; Elasticity analysis
  Mots-clé ; s ; Abax parallelepipedus ; Fragmentation de l'habitat ; Modè
• 刊名：Comptes Rendus Biologies
• 出版年：2006
• 出版时间：January 2006
• 年：2006
• 卷：329
• 期：1
• 页码：31-39
• 全文大小：605 K

文摘

To better understand the role of habitat quality and boundaries on population dynamics at the landscape scale, we develop a model combining a spatially implicit approach, a spatial population Leslie-type model and an implicit model of habitat fragmentation. An original approach of elasticity permits to identify which types of element and boundary influence the most population viability according to the wood fragmentation degree. The studied species is a corridor forest insect sensitive to fragmentation (Abax parallelepipedus, Coleoptera, Carabidae). We show that a single large patch of wood is better than several small patches for the population viability. To cite this article: J.-B. Pichancourt et al., C. R. Biologies 329 (2006).