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arXiv · 2208.14335

Optimisation of total population in logistic model with nonlocal dispersals and heterogeneous environments

Xueli Bai·Fang Li·Maolin Zhou
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Abstract

In this paper, we investigate the issue of maximizing the total equilibrium population with respect to resources distribution m(x) and diffusion rates d under the prescribed total amount of resources in a logistic model with nonlocal dispersals. Among other things, we show that for $d\ge1$, there exist $C_0, C_1>0$, depending on the $\|m\|_{L^1}$ only, such that $$C_0\sqrt{d}<\mbox{supremum~ of~ total~ population}<C_1\sqrt{d}.$$ However, when replaced by random diffusion, a conjecture, proposed by Ni and justified in [3], indicates that in the one-dimensional case, supremum of total population$=3\|m\|_{L^1}$. This reflects serious discrepancies between models with local and nonlocal dispersal strategies.

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Xueli Bai, Fang Li, Maolin Zhou. 2022-08-30. Optimisation of total population in logistic model with nonlocal dispersals and heterogeneous environments. https://arxiv.org/abs/2208.14335

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