دانلود مقاله ISI انگلیسی شماره 92037
ترجمه فارسی عنوان مقاله

اثرات انتشار بر روی توده زیست توده در متاکومیت های ساده

عنوان انگلیسی
Effects of diffusion on total biomass in simple metacommunities
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
92037 2018 27 صفحه PDF
منبع

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

Journal : Journal of Theoretical Biology, Volume 447, 14 June 2018, Pages 12-24

پیش نمایش مقاله
پیش نمایش مقاله  اثرات انتشار بر روی توده زیست توده در متاکومیت های ساده

چکیده انگلیسی

This paper analyzes the effects of diffusion on the overall population size of the different species of a metacommunity. Depending on precise thresholds, we determine whether increasing the dispersal rate of a species has a positive or negative effect on population abundance. These thresholds depend on the interaction type of the species and the quality of the patches. The motivation for researching this issue is that spatial structure is a source of new biological insights with management interest. For instance, in a metacommunity of two competitors, the movement of a competitor could lead to a decrease of the overall population size of both species. On the other hand, we discuss when some classic results of metapopulation theory are preserved in metacommunities. Our results complement some recent experimental work by Zhang and collaborators.