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Phenotypic allee effect

Web10. sep 2014 · The analysis of phenotypic change is important for several evolutionary biology disciplines, including phenotypic plasticity, evolutionary developmental biology, morphological evolution ... Web15. júl 2024 · The Allee effect, named after ecologist Warder Clyde Allee [3], refers to any mechanism leading to a positive relationship between individual fitness and population density [4], [5]. ... Then, we consider the aposematism parameter and saturation constant are functions of a mean phenotypic trait subject to evolution and formulate a model that ...

Evolutionary dynamics and strong Allee effects - PubMed

The Allee effect is a phenomenon in biology characterized by a correlation between population size or density and the mean individual fitness (often measured as per capita population growth rate) of a population or species. Zobraziť viac Although the concept of Allee effect had no title at the time, it was first described in the 1930s by its namesake, Warder Clyde Allee. Through experimental studies, Allee was able to demonstrate that goldfish have a greater survival … Zobraziť viac The generally accepted definition of Allee effect is positive density dependence, or the positive correlation between population … Zobraziť viac Demographic and mathematical studies demonstrate that the existence of an Allee effect can reduce the speed of range expansion of a population and can even prevent biological invasions. Recent results based on spatio-temporal models show … Zobraziť viac Clumping results due to individuals aggregating in response to: local habitat or landscape differences, daily and seasonal weather changes, reproductive processes, or as the result … Zobraziť viac Due to its definition as the positive correlation between population density and average fitness, the mechanisms for which an Allee effect arises are therefore inherently tied to … Zobraziť viac A simple mathematical example of an Allee effect is given by the cubic growth model where the … Zobraziť viac • Berryman, AA (1997). Underpopulation (Allee) effects, Entomology Department, Washington State University. Retrieved 19 May 2008. Zobraziť viac Web1. okt 2009 · Allee effect, as an important biological phenomenon, has been considered in many ecosystems, whereas, its influence on interactions of three or more species is little … kindle hdx camera review https://houseoflavishcandleco.com

Overcoming Allee effects through evolutionary, genetic, and demographic …

Web1. mar 2024 · The evolutionary stability of partial migration with Allee effects. An Allee effect occurs when the per-capita growth rate increases at low densities. Here, we … Web1. aug 2013 · The Allee effect is probably an unstable factor in the food web [40] ... The evolution of phenotypic traits in a predator–prey system subject to Allee effect. Journal of Theoretical Biology, 262 (2010), pp. 528-543. View PDF View article View in Scopus Google Scholar. Cited by (0) Web23. nov 2000 · We define the genetic Allee effect as a two-step process characterized by (1) a change in population genetic structure due to a decrease in population size and (2) a … kindle hd 8 not charging

Dynamics of a single species evolutionary model with Allee effects …

Category:(PDF) Genetic Allee effects on performance, plasticity and ...

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Phenotypic allee effect

Allee effect in the selection for prime-numbered cycles in periodical …

Web3. sep 2015 · The Allee effect seems to have been overlooked so far in the context of tumor growth and persistence. In our study, the Allee effect emerges from the specific … Web25. nov 2016 · Allee effect describes the positive correlation between population densities of an ecosystem with the average individual fitness of a population residing in an …

Phenotypic allee effect

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WebGenes affected in human genetic disorders are often pleiotropic. For example, people with a hereditary disorder called Marfan syndrome may have a set of seemingly unrelated … Web23. dec 2013 · There are multiple mechanisms by which genotypic and phenotypic diversity can positively influence establishment and population persistence (12–14).These include a higher probability that more diverse groups harbor preadapted phenotypes, i.e., a sampling effect (15, 16), niche complementarity resulting from reduced competition in groups …

Web21. sep 2024 · The growth term may be of the Fisher-KPP type but may also be subject to an Allee effect which can be weak (non-KPP monostable nonlinearity, possibly degenerate) …

Web2. jún 2009 · We include an Allee effect in our model, such that a critical population size is set as an extinction threshold. We compare the real-number models with and without the Allee effect. ... D Ebert, A maturation size threshold and phenotypic plasticity of age and size at maturity in Daphinia magna. Oikos 69, 309–317 (1992). Crossref. Google ... Web15. feb 2016 · The Allee effect, named after the ecologist Allee [2–6], has been recognized as an important phenomenon of positive density dependence in low-density population.Allee effect can occur whenever fitness of an individual in a small or sparse population decreases as the population size or density also declines [22, 80].Since the outstanding work of Allee …

Web12. jún 2013 · Our finding that an Allee effect greatly increased the uncertainty in recovery time frames provides an empirically based explanation for why the removal of threat does …

Web13. dec 2024 · Allee effects are one of the concepts surrounded by most confusion within the field of population ecology. In particular, the distinction between the mechanisms that … kindle help support canadaWeb7. feb 2010 · This paper considers the evolution of phenotypic traits in a community comprising the populations of predators and prey subject to Allee effect. The … kindle help support customer service chatWebAn Allee effect is called strong, if it results in the stability of extinction equilibrium x =0 in a model with a stable positive equilibrium. This bistability is the defining hallmark of a strong Allee effect and is a property that is often of central interest in studies of Allee effects. kindle help phone number usaWeb1. okt 2014 · The Allee effect is a biological phenomenon characterized by a positive correlation between population size (or density) and the mean individual fitness (often measured as per capita growth rate) of a population or species [3], [28], [1], [30], [31]. kindle heating and cooling erie paWebKeywords: Allee effects; adaptive evolution; biological invasion; individual-based model 1. Introduction ... The trait is a phenotypic measure of the overall strength of component Allee effects, measured in terms of the minimum number of conspecifics within a given neighbourhood that an individual requires for the expected kindle highlights readWeb12. nov 2009 · Prior research has highlighted mate‐finding failures in sparse populations as a cause of an Allee effect (positive density dependence). We explored this mechanism by measuring the relationship between female mating success and background male moth densities along the gypsy moth western front in Northern Wisconsin (USA) over 2 years. kindle headphone adapterWeb7. jan 2011 · In this paper, with the method of adaptive dynamics and geometric technique, we investigate the adaptive evolution of foraging-related phenotypic traits in a predator-prey community with trade-off structure. Specialization on one prey type is assumed to go at the expense of specialization on another … kindle hemingway s widow