کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4372341 1617087 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Change of dynamic regimes in the population of species with short life cycles: Results of an analytical and numerical study
ترجمه فارسی عنوان
تغییر رژیم پویا در جمعیت گونه های با چرخه زندگی کوتاه: نتایج یک مطالعه تحلیلی و عددی
کلمات کلیدی
پویایی جمعیت؛ تراکم وابسته به مقررات؛ ثبات چندگانه ؛ حوضه جاذبه؛ شاخه
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


• Discrete-time model with density-dependent birth regulation.
• Populations with short life cycle.
• Multistability of dynamic regimes.
• Fitting of time series on bank vole dynamics.

There is a phenomenon of multiregimism found in the elementary mathematical model of population dynamics, meaning the possibility for different dynamic regimes to exist under the same conditions, with transition to these regimes dependent on the initial numerical values. The effect in question comes into existence in the model which has several different limiting regimes (attractors): equilibrium, regular fluctuations, and chaotic attractor. The revealed phenomenon of multiregimism lets us explain the initiation of fluctuations as well as disappearance of fluctuations. Adequacy of the model's dynamic regimes is depicted by their correlation with the actual dynamics of population size of bank vole (Myodes glareolus). It is shown that the impact of climatic factors on a reproductive process of a population noticeably extends the range of possible dynamic regimes and, in fact, leads to random migration over attraction basins of these regimes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Complexity - Volume 27, September 2016, Pages 2–11
نویسندگان
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