Results 21 to 30 of about 27,145 (255)
Ecological niche divergence associated with species and populations differentiation in Erythrophleum (Fabaceae, Caesalpinioideae) [PDF]
Plant Ecology and Evolution, 2019 Background and aims – The isolation of populations inside forest refugia during past climate changes has widely been hypothesized as a major driver of tropical plant diversity.
Anaïs-Pasiphaé Gorel +3 more
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Ecological Factors in Speciation [PDF]
Evolution, 1947 The past decades have seen the gradual formulation of the theory of geographical speciation, principally based on work in the fields of the systematics of mammals, birds, insects, and mollusks. This theory 'postulates that in bisexual animals a new species can develop only "if a population, which has become geographically isolated from its parental ...
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Thermal adaptation and ecological speciation [PDF]
Molecular Ecology, 2011 AbstractEcological speciation is defined as the emergence of reproductive isolation as a direct or indirect consequence of divergent ecological adaptation. Several empirical examples of ecological speciation have been reported in the literature which very often involve adaptation to biotic resources. In this review, we investigate whether adaptation to
Keller, I., Seehausen, Ole
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Ecological speciation in the tropics: Insights from comparative genetic studies in Amazonia
Frontiers in Genetics, 2015 Evolution creates and sustains biodiversity via adaptive changes in ecologically relevant traits. Ecologically mediated selection contributes to genetic divergence both in the presence or absence of geographic isolation between populations, and is ...
Luciano B Beheregaray +4 more
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Bird song, ecology and speciation [PDF]
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2002 The study of bird song dialects was once considered the most promising approach for investigating the role of behaviour in reproductive divergence and speciation. However, after a series of studies yielding conflicting results, research in the field slowed significantly. Recent findings, on how ecological factors may lead to divergence in both song and
Hans, Slabbekoorn, Thomas B, Smith
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The evolution of reproductive isolation in Daphnia
BMC Evolutionary Biology, 2019 Background The process by which populations evolve to become new species involves the emergence of various reproductive isolating barriers (RIB). Despite major advancements in understanding this complex process, very little is known about the order in ...
Tiffany A. Chin +2 more
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Ecology of Speciation in the Genus Bacillus [PDF]
Applied and Environmental Microbiology, 2010 ABSTRACT Microbial ecologists and systematists are challenged to discover the early ecological changes that drive the splitting of one bacterial population into two ecologically distinct populations. We have aimed to identify newly divergent lineages (“ecotypes”) bearing the dynamic properties attributed to species, with the ...
Nora, Connor +11 more
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BMC Evolutionary Biology, 2018 Background Differences in species richness among phylogenetic clades are attributed to clade age and/or variation in diversification rates. Access to ecological opportunity may trigger a temporary increase in diversification rates and ecomorphological ...
Diana Delicado +2 more
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How Likely Is Speciation in Neutral Ecology? [PDF]
The American Naturalist, 2012 The American Naturalist, Vol. 179, No. 1 (January 2012), pp. 137-144. DOI: 10.1086/663196. abstract: Patterns of biodiversity predicted by the neutral theory rely on a simple phenomenological model of speciation. To further investigate the effect of speciation on neutral biodiversity, we analyze a spatially explicit neutral model based on population ...
Desjardins-Proulx, Philippe +1 more
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Genetic tests for ecological and allopatric speciation in anoles on an island archipelago. [PDF]
PLoS Genetics, 2010 From Darwin's study of the Galapagos and Wallace's study of Indonesia, islands have played an important role in evolutionary investigations, and radiations within archipelagos are readily interpreted as supporting the conventional view of allopatric ...
Roger S Thorpe +2 more
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