Results 21 to 30 of about 25,956 (178)
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 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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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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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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Reinforcement during ecological speciation [PDF]
Proceedings of the Royal Society of London. Series B: Biological Sciences, 2001 Reinforcement of pre-zygotic isolation can result when any of several kinds of selection act against hybrids. This paper investigates the situation where hybrids are selected against for ecological reasons, for example when there is no niche for individuals that are phenotypically intermediate between the parental species.
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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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Frontiers in Ecology and Evolution, 2021 The role of hybridization as one of the factors of speciation in mammals has been underestimated for a long time, but now there is a lot of data on its impact in mammalian evolution. Hybridization of species often occurs in their secondary contact zones,
Oleg V. Brandler +5 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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Divergent selection on opsins drives incipient speciation in Lake Victoria cichlids. [PDF]
PLoS Biology, 2006 Divergent natural selection acting on ecological traits, which also affect mate choice, is a key element of ecological speciation theory, but has not previously been demonstrated at the molecular gene level to our knowledge.
Yohey Terai +13 more
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Genetics of ecological divergence during speciation [PDF]
Nature, 2014 Ecological differences often evolve early in speciation as divergent natural selection drives adaptation to distinct ecological niches, leading ultimately to reproductive isolation. Although this process is a major generator of biodiversity, its genetic basis is still poorly understood.
Arnegard, M. +12 more
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