کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4378427 1617527 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An individual-based model of a tritrophic ecology
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
An individual-based model of a tritrophic ecology
چکیده انگلیسی

A spatially explicit individual-based model for a predator, prey and plant ecosystem is considered. The movement of the individuals is solely based on nearest-neighbour attraction/repulsion and reproduction is asexual. In this simple model emergent spatial organization of the individuals into clusters or groups is present even though all the individuals (predators and prey) are intra-specifically repelled by each other. The model ecosystem was used to determine whether an intra-specific attraction among the prey could increase their individual fitness. The attraction mechanism considered is such that when a prey is not affected by a predator or a plant then this prey is attracted to its nearest-neighbour prey. Under the assumptions of the parameterized model ecosystem, this mechanism seems highly selective on the individual level and it is evident that a population-based model could not assess this attraction mechanism. The main objective of this paper is to formalize mathematically an individual-based model and provide an example of a model tritrophic ecosystem that has the capabilities to assess evolutionary aspects of social behaviour in a prey species.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 218, Issues 3–4, 10 November 2008, Pages 195–206
نویسندگان
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