Results 81 to 90 of about 26,001 (267)
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, Volume 67, Issue 4, Page 363-378, October 2025.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
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Superscars in the LiNC=LiCN isomerization reaction [PDF]
, 2009 We demonstrate the existence of superscarring in the LiNC=LiCN isomerization reaction described by a realistic potential interaction in the range of readily attainable experimental energies.
E. Vergini +16 more
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Nonautonomous saddle-node bifurcations: Random and deterministic forcing
Journal of Differential Equations, 2012 17 pages, 5 ...
Tobias Jäger, Vasso Anagnostopoulou
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Abrupt Loss of Soil Organic Carbon Following Disturbance in Seagrass Ecosystems
Global Biogeochemical Cycles, Volume 39, Issue 10, October 2025.Abstract Seagrasses are key carbon sinks in the biosphere and, when intentionally conserved or restored, constitute a promising natural solution for climate change mitigation. Unfortunately, they are also experiencing major anthropogenic and climatic pressures that can lead to seagrass degradation or even result in difficult‐to‐reverse abrupt shifts (i.
Antoine Le Vilain +4 more
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AIMS MathematicsConsidering the impact of fear levels, Allee effects and hunting cooperation factors on system stability, a Leslie-Gower predator-prey model was formulated.
Weili Kong, Yuanfu Shao
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Journal of Fish Biology, Volume 107, Issue 4, Page 1364-1397, October 2025.Abstract Ten species of Barbatula are recognised in Europe, west of the Urals: B. barbatula, B. caucasica, B. hispanica, B. leoparda, B. pironae, B. quignardi, B. sturanyi, B. taurica, B. vardarensis and B. zetensis, with B. caucasica and B. taurica formerly considered subspecies of B. barbatula.
Bárbara B. Calegari +6 more
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Applied SciencesThe dynamical behavior of a Duffing oscillator under periodic excitation is investigated using semi-analytical methods. Bifurcation trees with varying periodic excitation are constructed.
Yan Liu +3 more
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Modeling and Analyzing the Influence of Fear on the Harvested Modified Leslie-Gower Model
مجلة بغداد للعلوم, 2023 A modified Leslie-Gower predator-prey model with a Beddington-DeAngelis functional response is proposed and studied. The purpose is to examine the effects of fear and quadratic fixed effort harvesting on the system's dynamic behavior.
Abdul Rahman Mahmoud Jamil +1 more
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Lorenz attractor through saddle-node bifurcations
Annales de l'Institut Henri Poincaré C, Analyse non linéaire, 1996 In this paper we consider the unfolding of a geometric Lorenz attractor when the singularity contained in this attractor goes through a saddle-node bifurcation. It is shown that these unfoldings can carry such a geometric Lorenz attractor either directly into a hyperbolic Plykin attractor or into phenomena associated to the unfolding of homoclinic ...
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Advanced Science, Volume 12, Issue 36, September 25, 2025.This article presents an insightful review on the exploitable nexus of geometry, folding mechanics and stimuli‐responsive physics for achieving active programmability in tubular origami metamaterials and metastructures, highlighting the broad‐spectrum potential in innovative applications across the length scales, along with critically analysing the ...
A. Sharma, S. Naskar, T. Mukhopadhyay
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