Department of Ecological Modelling, UFZ-Helmholtz Centre for Environmental Research, Permoserstrasse 15, Leipzig, Germany.
Proc Biol Sci. 2010 Jun 22;277(1689):1889-97. doi: 10.1098/rspb.2010.0029. Epub 2010 Feb 17.
For land-use planning, numerically fast and easily applicable tools are urgently needed that allow us to assess how landscape structure and dynamics affect biodiversity. To date, such tools exist only for static landscapes. We provide an analytical formula for the mean lifetime of species in fragmented and dynamic habitat networks where habitat patches may be destroyed and created elsewhere. The formula is able to consider both patch size heterogeneity and dynamics additionally to patch number and connectivity. It is validated through comparison with a dynamic and spatially explicit simulation model. It can be used for the optimization of spatio-temporal land-use patterns in real landscapes and for advancing our general understanding of key processes affecting the survival of species in fragmented heterogeneous dynamic landscapes.
对于土地利用规划，我们迫切需要快速且易于应用的数值工具，以便评估景观结构和动态如何影响生物多样性。迄今为止，此类工具仅适用于静态景观。我们提供了一个分析公式，用于计算在可能破坏和在其他地方创建生境斑块的碎片化和动态生境网络中物种的平均寿命。该公式能够考虑斑块大小异质性以及斑块数量和连通性之外的动态。通过与动态和空间显式模拟模型进行比较来验证该公式。它可以用于优化真实景观中的时空土地利用模式，并推进我们对影响碎片化异质动态景观中物种生存的关键过程的总体理解。
