Results 11 to 20 of about 99 (95)

On a predator-prey system interaction under fluctuating water level with nonselective harvesting

Open Mathematics, 2020
A predator-prey model interaction under fluctuating water level with non-selective harvesting is proposed and studied in this paper. Sufficient conditions for the permanence of two populations and the extinction of predator population are provided.
Zhang Na, Kao Yonggui, Chen Fengde, Xie Binfeng, Li Shiyu   +4 more
doaj   +1 more source

Global periodic solutions in a plankton-fish interaction model with toxication delay

Nonlinear Engineering, 2018
In this paper, a plankton-fish interaction model is proposed and analyzed with the help of delay differential equations. Firstly, the elementary dynamical properties of the system in the absence of time delay is discussed.
Sharma Amit
doaj   +1 more source

Estudios ornitológicos urbanos en Colombia: revisión de literatura

Ingeniería y Ciencia, 2013
Este artículo examina la información que se ha producido en revistas arbitradas sobre las aves de las ciudades colombianas, complementando un artículo de revisión Latinoamericano publicado recientemente.
Carlos A. Delgado-V, Juana C. Correa-H
doaj   +1 more source

Dynamic ecological system measures

Results in Applied Mathematics, 2019
The system decomposition theory has recently been developed for the dynamic analysis of nonlinear compartmental systems. The application of this theory to the ecosystem analysis has also been introduced in a separate article.
Huseyin Coskun
doaj   +1 more source

Implication of age-structure on the dynamics of Lotka Volterra equations

, 2019
2010 MSC : (35B35) 35B40 65M08 (65M25) 92D40 92D50 (92D25)International audienceIn this article, we study the behavior of a nonlinear age-structured predator-prey model that is a generalization of Lotka-Volterra equations.
Perasso, Antoine, Antoine Perasso, Richard, Quentin, Quentin Richard   +3 more
core   +1 more source

Modeling of the switching effect on two prey and one predator with the presence of Allee effects and refuge

Computational and Mathematical Biophysics
To examine the dynamics of a predator’s interaction with two prey species, this study develops a comprehensive mathematical model that accounts for ecological complexities, including the Allee effect, prey switching behavior, and prey refuge.
Kadhim Atheer Jawad, Elobaid Rafida M., Al-Saidi Nadia M. G., Jaber Ahamed Shawki   +3 more
doaj   +1 more source

Disaggregation behavior in the terrestrial isopod Porcellionides pruinosus as a new ecotoxicological endpoint for assessing infochemical disrupting activity

Ecological Indicators
Among rapid ecotoxicological bioassays for screening soil quality, avoidance behavior tests on gregarious edaphic species such as Porcellionides pruinosus are widely used.
Lorenzo Federico, Gianna Serafina Monti, Susana Loureiro, Sara Villa   +3 more
doaj   +1 more source

Metapopulation Dynamics with Migration and Local Competition

, 2002
MSC2000: primary 34D15, 34D23, 92B05; secondary 34K60, 34E13, 92D40.Many patch-based metapopulation models assume that the local population within each patch is at its equilibrium and independent of changes in patch occupancy.
Feng, Zhilan, Zhu, Huaiping, Yi, Yingfei
core   +1 more source

Fractional order for the transmission dynamics of coffee berry diseases (CBD)

European Journal of Applied Mathematics
Coffee berry diseases (CBD) pose significant threats to coffee production worldwide, affecting the livelihoods of millions of farmers and the global coffee market.
Abayneh Kebede Fantaye
doaj   +1 more source

Periodic dynamics of a general switching dynamical system

European Journal of Applied Mathematics
Seasonal changes and cyclical human activities (such as periodic fishing bans, Wolbachia-based mosquito population control, and school term breaks) have significant impacts on population dynamics.
Qian Ding, Jianshe Yu, Zhiming Guo, Yuming Chen, Yunfeng Liu   +4 more
doaj   +1 more source