Results 121 to 130 of about 168,414 (382)
Ecological Applications, Volume 32, Issue 8, December 2022., 2022 Abstract The brown treesnake (BTS) (Boiga irregularis) invasion on Guåhan (in English, Guam) led to the extirpation of nearly all native forest birds. In recent years, methods have been developed to reduce BTS abundance on a landscape scale. To help assess the prospects for the successful reintroduction of native birds to Guåhan following BTS ...
Robert M. McElderry +3 more
wiley +1 more source
Stationary patterns of a diffusive predator-prey model with Crowley-Martin functional response [PDF]
arXiv, 2017 A diffusive predator-prey system with predator interference and Neumann boundary conditions is considered in this paper. We derive some results on the existence and nonexistence of nonconstant stationary solutions. It is shown that there exist no nonconstant stationary solutions when the effect of the predator interference is strong or the conversion ...
arxiv
Analysis of plant metabolomics data using identification‐free approaches
Applications in Plant Sciences, EarlyView.Abstract Plant metabolomes are structurally diverse. One of the most popular techniques for sampling this diversity is liquid chromatography–mass spectrometry (LC‐MS), which typically detects thousands of peaks from single organ extracts, many representing true metabolites.
Xinyu Yuan +2 more
wiley +1 more source
Does spatial variation in predation pressure modulate selection for aposematism?
Ecology and Evolution, 2017 It is widely believed that aposematic signals should be conspicuous, but in nature, they vary from highly conspicuous to near cryptic. Current theory, including the honest signal or trade‐off hypotheses of the toxicity–conspicuousness relationship ...
S. Tharanga Aluthwattha +5 more
doaj +1 more source
Study of LG-Holling type III predator-prey model with disease in predator [PDF]
arXiv, 2017 In this article, a Leslie-Gower Holling type III predator-prey model with disease in predator has been developed from both biological and mathematical point of view. The total population is divided into three classes, namely, prey, susceptible predator and infected predator.
arxiv
Local biodiversity change reflects interactions among changing abundance, evenness, and richness
Ecology, Volume 103, Issue 12, December 2022., 2022 Abstract Biodiversity metrics often integrate data on the presence and abundance of multiple species. Yet our understanding of covariation between changes to the numbers of individuals, the evenness of species relative abundances, and the total number of species remains limited.
Shane A. Blowes +12 more
wiley +1 more source
Chaos control via feeding switching in intraguild predation systems [PDF]
arXiv, 2014 In the present paper we study a tri-trophic Lotka-Volterra food web model with omnivory and predator switching. We observe that if the intensity of predator switching increases the chaotic behavior of the omnivory model will be reduced. We conclude that the predator switching mechanism enhances the stability of an otherwise chaotic system.
arxiv
Evolution of separate predation- and defence-evoked venoms in carnivorous cone snails
Nature Communications, 2014 Venomous animals are thought to inject the same combination of toxins for both predation and defence, presumably exploiting conserved target pharmacology across prey and predators.
S. Dutertre +11 more
semanticscholar +1 more source
The Anatomical Record, EarlyView.Abstract Testudines are one of the best‐represented taxonomic groups among the Paleogene taxa of the Duero Basin (Castile and Leon Autonomous Community, central Spain). Among them, Neochelys (Podocnemidide) and Allaeochelys (Carettochelyidae) are most abundant, allowing the population to be assessed for osteological anomalies.
Andrea Guerrero +3 more
wiley +1 more source
A multi-scale study of a class of hybrid predator-prey models [PDF]
arXiv, 2014 We address the question of an averaging principle for a general class of multi-scale hybrid predator-prey models. We consider prey-predator models where the kinetic of the prey population, described by a differential equation, is faster than the kinetic of the predator population, described by a jump process, the two dynamics being fully coupled.
arxiv