Optimal foraging in patchy turbulent environments
نویسندگان
چکیده
منابع مشابه
Optimal foraging in patchy turbulent environments
The problem of what strategy a predator should adopt when foraging in a turbulent and spatially patchy environment is investigated using simple mathematical models. The study was motivated by the need to understand the behaviour of marine fish larvae searching for copepod prey. It is demonstrated that optimal swimming speed should decrease with increasing turbulence, and that in a patchy turbul...
متن کاملNearly Optimal Patchy Feedbacks
The paper is concerned with a general optimization problem for a nonlinear control system, in the presence of a running cost and a terminal cost, with free terminal time. We prove the existence of a patchy feedback whose trajectories are all nearly optimal solutions, with pre-assigned accuracy.
متن کاملCompetition and dispersal delays in patchy environments.
Dispersal delays are introduced into a competition model for two species that disperse among n identical patches. The model is formulated as a system of integro-differential equations with an arbitrary distribution of dispersal times between patches. By identifying steady states and analyzing local stability, conditions for competitive exclusion, coexistence or extinction are determined in term...
متن کاملCompetition and species packing in patchy environments.
In models of competition in which space is treated as a continuum, and population size as continuous, there are no limits to the number of species that can coexist. For a finite number of sites, N, the results are different. The answer will, of course, depend on the model used to ask the question. In the Tilman-May-Nowak ordinary differential equation model, the number of species is asymptotica...
متن کاملOptimal Foraging in Groups
A common assumption of optimal foraging theory is that natural selection has favoured animals that forage in an optimal way, as such an ability increases the individual’s probabillity of survival [4, 5]. This argument is used to support optimality principles in biology, and is at the base of optimal foraging theory [6]. Efficient foraging is clearly beneficial when food is in short supply, but ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 2003
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps256099