دانلود مقاله ISI انگلیسی شماره 145861
ترجمه فارسی عنوان مقاله

تهاجم دینامیک گونه های رقابت با ساختار مرحله

عنوان انگلیسی
Invasion dynamics of competing species with stage-structure
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
145861 2017 32 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Journal of Theoretical Biology, Volume 435, 21 December 2017, Pages 12-21

پیش نمایش مقاله
پیش نمایش مقاله  تهاجم دینامیک گونه های رقابت با ساختار مرحله

چکیده انگلیسی

The spread of an invasive species often results in a decline and subsequent disappearance of native competitors. Several models, primarily based on spatially explicit Lotka–Volterra competition dynamics, have been developed to understand this phenomenon. In general, the goal of these models is to relate fundamental life history traits, for example dispersal ability and competition strength, to the rate of spread of the invasive species, which is also the rate at which the invasive species displaces its native competitor. Stage-structure is often an important determinant of population dynamics, but it has received little attention within the context of Lotka–Volterra invasion models. For many species, behaviors like dispersal and competition depend on life-stage. To describe the processes of invasion in these species, it is important to understand how behaviors that vary as a function of life-stage can impact spread rate. In this paper, we develop a spatially explicit, stage-structured Lotka–Volterra competition model. By comparing spread speed predictions from this model to spread speed predictions from an analogous single-stage model, we are able to determine when stage-structure is important and how stage-dependent behavior can alter the characteristics of an invasion.