Results 61 to 70 of about 180,326 (375)
Spatiotemporal dynamics of two generic predator–prey models [PDF]
Journal of Biological Dynamics, 2010 We present the analysis of two reaction-diffusion systems modelling predator-prey interactions, where the predator displays the Holling type II functional response, and in the absence of predators, the prey growth is logistic. The local analysis is based on the application of qualitative theory for ordinary differential equations and dynamical systems,
Marcus R, Garvie, C, Trenchea
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Population Dynamic Regulators In An Empirical Predator-Prey System [PDF]
Journal of Theoretical Biology, 2020 ABSTRACTThis paper investigates stability conditions of an empirical predator-prey system using a model that includes a single delay term,τ, in description of the predator dynamics. We derive theoretical conditions onτ, in terms of other model parameters, and determine how changes in these conditions define different stability regimes of the system. We
Anna S. Frank +3 more
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Advanced Functional Materials, EarlyView.Inspired by octopuses, actuating legs based on soft materials are fabricated with programmed chiroptical properties and mechanical behaviors to achieve dynamic color modulation and reversible shape morphing, and these legs are developed into a modular OCTOID system.
Seung Hui Han +8 more
wiley +1 more source
Elevated CO2 affects predator-prey interactions through altered performance. [PDF]
PLoS ONE, 2013 Recent research has shown that exposure to elevated carbon dioxide (CO2) affects how fishes perceive their environment, affecting behavioral and cognitive processes leading to increased prey mortality.
Bridie J M Allan +4 more
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Advanced Functional Materials, EarlyView.A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal +5 more
wiley +1 more source
Journal of Applied Mathematics, 2022 In this paper, we present and analyze predator-prey system where prey population is linearly harvested and affected by fear and the prey population has grown logistically in the absence of predators.
Basaznew Belew, Dawit Melese
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Prey switching with a linear preference trade-off [PDF]
, 2013 In ecology, prey switching refers to a predator's adaptive change of habitat or diet in response to prey abundance. In this paper, we study piecewise-smooth models of predator-prey interactions with a linear trade-off in a predator's prey preference.
Maini, P. K., Piltz, S, Porter, M A
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Advanced Functional Materials, EarlyView.A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan +6 more
wiley +1 more source
Restricting prey dispersal can overestimate the importance of predation in trophic cascades. [PDF]
PLoS ONE, 2013 Predators can affect prey populations and, via trophic cascades, predators can indirectly impact resource populations (2 trophic levels below the predator) through consumption of prey (density-mediated indirect effects; DMIEs) and by inducing predator ...
Nathan R Geraldi, Peter I Macreadie
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Indirect effects of primary prey population dynamics on alternative prey
, 2014 We develop a theory of generalist predation showing how alternative prey species are affected by changes in both mean abundance and variability (coefficient of variation) of their predator's primary prey.
Barraquand, Frederic +3 more
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