کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4500735 1320019 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biological invasions: Deriving the regions at risk from partial measurements
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Biological invasions: Deriving the regions at risk from partial measurements
چکیده انگلیسی

We consider the problem of forecasting the regions at higher risk for newly introduced invasive species. Favourable and unfavourable regions may indeed not be known a priori, especially for exotic species whose hosts in native range and newly-colonised areas can be different. Assuming that the species is modelled by a logistic-like reaction–diffusion equation, we prove that the spatial arrangement of the favourable and unfavourable regions can theoretically be determined using only partial measurements of the population density: (1) a local ‘spatio-temporal’ measurement, during a short time period and, (2) a ‘spatial’ measurement in the whole region susceptible to colonisation. We then present a stochastic algorithm which is proved analytically, and then on several numerical examples, to be effective in deriving these regions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mathematical Biosciences - Volume 215, Issue 2, October 2008, Pages 158–166
نویسندگان
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