Results 61 to 70 of about 26,908 (209)
Peculiarities of microevolution processes in Trollius asiaticus in South Siberia Mountains
BIO Web of Conferences, 2020 In the paper, we analyse the distribution of species and forms closely-related to Trollius asiaticus L. growing in the mountains of South Siberia between the Altai Mountain Country and Baikalia. The interrelationship between the endemic species and forms
Buglova Lyubov V., Zhirova Olga S.
doaj +1 more source
eLife, 2023 The evolutionary trajectories and genetic architectures underlying ecological divergence with gene flow are poorly understood. Sympatric timing types of the intertidal insect Clunio marinus (Diptera) from Roscoff (France) differ in lunar reproductive ...
Dušica Briševac +2 more
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Phase transition in a mean-field model for sympatric speciation
, 2005 We introduce an analytical model for population dynamics with intra-specific competition, mutation and assortative mating as basic ingredients. The set of equations that describes the time evolution of population size in a mean-field approximation may be
Chow +15 more
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Reticulate sympatric speciation in Cameroonian crater lake cichlids
Frontiers in Zoology, 2004 Background Traditionally the rapid origin of megadiverse species flocks of extremely closely related species is explained by the combinatory action of three factors: Disruptive natural selection, disruptive sexual selection and partial isolation by ...
Schliewen Ulrich K, Klee Barbara
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Population genomic analyses support sympatric origins of parapatric morphs in a salamander
Ecology and Evolution, 2022 In numerous clades, divergent sister species have largely non‐overlapping geographic ranges. This pattern presumably arises because species diverged in allopatry or parapatry, prior to a subsequent contact.
Emily Buckingham +4 more
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Experimental hybridization and reproductive isolation between two sympatric species of tephritid fruit flies in the Anastrepha fraterculus species group [PDF]
, 2017 Among tephritid fruit flies, hybridzation has been found to produce local adaptationand speciation, and in the case of pest species, induce behavioral and ecological alterations that can adversely impact efficient pest management. The fraterculus species
Altuzar Molina, Alma +5 more
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Oikos, EarlyView.Speciation, extinction, and dispersal are the historical processes influencing the spatial distribution of lineages and strongly influence diversity patterns. Here, we apply a recently developed methodological approach to quantify the relative legacies in situ diversification history (i.e.
Arthur Vinicius Rodrigues +2 more
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Frontiers in Ecology and Evolution, 2023 Ecotypes, subpopulations or strains of a single species locally adapted to divergent ecological conditions within the same habitat are often considered to be the first steps in sympatric speciation.
Jan Buellesbach +3 more
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Introgressive Hybridization and the Evolution of Lake-Adapted Catostomid Fishes. [PDF]
, 2016 Hybridization has been identified as a significant factor in the evolution of plants as groups of interbreeding species retain their phenotypic integrity despite gene exchange among forms.
Carson, Evan W +5 more
core +2 more sources
PLANTS, PEOPLE, PLANET, EarlyView.Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long +7 more
wiley +1 more source