Results 1 to 10 of about 13,143 (213)
Bacterial predator-prey dynamics in microscale patchy landscapes. [PDF]
Proc Biol Sci, 2016 Soil is a microenvironment with a fragmented (patchy) spatial structure in which many bacterial species interact. Here, we explore the interaction between the predatory bacterium Bdellovibrio bacteriovorus and its prey Escherichia coli in microfabricated landscapes.
Hol FJ +4 more
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Barrier-mediated predator-prey dynamics [PDF]
EPL (Europhysics Letters), 2021 The survival chance of a prey chased by a predator depends not only on their relative speeds but importantly also on the local environment they have to face. For example, a wolf chasing a deer might take a long time to cross a river which can quickly be crossed by the deer. Here, we propose a simple predator-prey model for a situation in which both the
Fabian Jan Schwarzendahl, Hartmut Löwen
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A MICROFOUNDATION OF PREDATOR‐PREY DYNAMICS [PDF]
Natural Resource Modeling, 2003 ABSTRACT. Predator‐prey relationships account for an important part of all interactions betweenspecies. In this paper we provide a microfoundation for such predator‐prey relations in afood chain. Basic entities of our analysis are representative organisms of species modeled similar to economic households.
Thomas Eichner, Rüdiger Pethig
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Chemotactic predator-prey dynamics [PDF]
Physical Review E, 2011 A discrete chemotactic predator-prey model is proposed in which the prey secrets a diffusing chemical which is sensed by the predator and vice versa. Two dynamical states corresponding to catching and escaping are identified and it is shown that steady hunting is unstable.
Tobias Kruppa +2 more
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Stochastic dynamics of predator-prey interactions
PLOS ONE, 2021 The interaction between a consumer (such as, a predator or a parasitoid) and a resource (such as, a prey or a host) forms an integral motif in ecological food webs, and has been modeled since the early 20thcentury starting from the seminal work of Lotka and Volterra.
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A note on predator-prey dynamics in radiocarbon datasets
Peer Community Journal, 2023 AbstractPredator-prey interactions have been a central theme in population ecology for the past century, but real-world data sets only exist for recent, relatively short (<100 years) time spans. This limits our ability to study centennial/millennial-scale predator-prey dynamics.
Marom, Nimrod, Wolkowski, Uri
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Cascade of Complexity in Evolving Predator-Prey Dynamics [PDF]
Physical Review Letters, 2008 We simulate an individual-based model that represents both the phenotype and genome of digital organisms with predator-prey interactions. We show how open-ended growth of complexity arises from the invariance of genetic evolution operators with respect to changes in the complexity, and that the dynamics which emerges is controlled by a non-equilibrium ...
Nigel Goldenfeld, Nicholas Guttenberg
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On the dynamics of an intraguild predator–prey model
Mathematics and Computers in Simulation, 2018 An intraguild predator-prey model with a carrying capacity proportional to the biotic resource, is generalized by introducing a Holling type II functional response. The longtime behaviour of solutions is analyzed and, in particular, absorbing sets in the phase space are determined.
Capone Florinda +3 more
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The Complex Dynamics of a Stochastic Predator‐Prey Model [PDF]
Abstract and Applied Analysis, 2012 A modified stochastic ratio‐dependent Leslie‐Gower predator‐prey model is formulated and analyzed. For the deterministic model, we focus on the existence of equilibria, local, and global stability; for the stochastic model, by applying Itô formula and constructing Lyapunov functions, some qualitative properties are given, such as the existence of ...
Wang, Xixi +3 more
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Landscape connectivity and predator–prey population dynamics [PDF]
Landscape Ecology, 2010 Landscapes are increasingly fragmented, and conservation programs have started to look at network approaches for maintaining populations at a larger scale. We present an agent-based model of predator–prey dynamics where the agents (i.e. the individuals of either the predator or prey population) are able to move between different patches in a landscaped
Marco A. Janssen +5 more
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