Results 21 to 30 of about 8,592 (119)

On positive periodic solution for the delay Nicholson’s blowflies model with a harvesting term

open access: yesApplied Mathematical Modelling, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Weirui Zhao, Chunmiao Zhu, Huaping Zhu
semanticscholar   +3 more sources

Existence of positive almost periodic solutions for a Nicholson's blowflies model

open access: yesElectronic Journal of Differential Equations, 2015
This article concerns the existence of almost periodic solutions for a Nicholson's blowflies model with a nonlinear density-dependent mortality term. By utilizing a fixed point theorem in cones, we establish the existence of almost periodic solutions.
Hui-Sheng Ding, Jehad Alzabut
doaj   +2 more sources

Existence of positive almost-periodic solutions for a Nicholson's blowflies model

open access: yesElectronic Journal of Differential Equations, 2013
This article concerns the existence of solutions to a first-order differential equation with time-varying delay, which is known as a Nicholson's blowflies model.
Qing-Long Liu, Hui-Sheng Ding
doaj   +2 more sources

Scale‐dependent effects of landscape structure on pollinator traits, species interactions and pollination success

open access: yesEcography, Volume 2023, Issue 5, May 2023., 2023
The environmental filtering of species traits can influence the identity of their interaction partners and the contribution of species interactions to ecosystem functioning, but the extent to which this process is influenced by landscape composition and configuration remains unclear.
Guadalupe Peralta   +5 more
wiley   +1 more source

Limits to ecological forecasting: Estimating uncertainty for critical transitions with deep learning

open access: yesMethods in Ecology and Evolution, Volume 14, Issue 3, Page 785-798, March 2023., 2023
Abstract In the current age of a rapidly changing environment, it is becoming increasingly important to study critical transitions and how to best anticipate them. Critical transitions pose extremely challenging forecasting problems, which necessitate informative uncertainty estimation rather than point forecasts.
Marcus Lapeyrolerie, Carl Boettiger
wiley   +1 more source

Revisiting the hymenopteran diploid male vortex: a review of avoidance mechanisms and incidence

open access: yesEntomologia Experimentalis et Applicata, Volume 170, Issue 12, Page 1010-1031, December 2022., 2022
The Hymenoptera (bees, ants, wasps, and sawflies) have haploid males and diploid females. According to the diploid male vortex (DMV) theory, inbreeding increases sterile diploid male production and extinction risk for many species. We reviewed DMV incidence and avoidance.
Kelley Leung, Henk van der Meulen
wiley   +1 more source

Stochastic patch structure Nicholson’s blowflies system with mixed delays

open access: yesAdvances in Difference Equations, 2020
This paper is devoted to studying a stochastic patch structure Nicholson’s blowflies system with mixed delays which is a new model for the generalization of classic Nicholson’s blowflies system.
Honghui Yin, Bo Du, Xiwang Cheng
doaj   +1 more source

Environmental drivers of biseasonal anthrax outbreak dynamics in two multihost savanna systems

open access: yesEcological Monographs, Volume 92, Issue 4, November 2022., 2022
Abstract Environmental factors are common forces driving infectious disease dynamics. We compared interannual and seasonal patterns of anthrax infections in two multihost systems in southern Africa: Etosha National Park, Namibia, and Kruger National Park, South Africa.
Yen‐Hua Huang   +12 more
wiley   +1 more source

Global asymptotic stability for a nonlinear density-dependent mortality Nicholson’s blowflies system involving multiple pairs of time-varying delays

open access: yesAdvances in Difference Equations, 2020
In our article, a nonlinear density-dependent mortality Nicholson’s blowflies system with patch structure has been investigated, in which the delays are time-varying and multiple pairs.
Yanli Xu, Qian Cao
doaj   +1 more source

Formulated Mathematical Model for Delayed Particle Flow in Cascaded Subsurface Water Reservoirs with Validation on River Flow

open access: yesJournal of Applied Mathematics, Volume 2022, Issue 1, 2022., 2022
Migration of pollutant particles into subsurface water reservoirs through point sources is largely involved mixing processes within the system of water flow. Possible potential sources of pollution to these point sources include municipal wastes, septic loads, landfills, uncontrolled hazardous wastes, and sewage storage tanks.
Richard Ombaki   +2 more
wiley   +1 more source

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