Results 11 to 20 of about 25,956 (178)

Admixture between old lineages facilitated contemporary ecological speciation in Lake Constance stickleback [PDF]

open access: yesNature Communications, 2019
Ecological speciation can proceed rapidly, but the origin of genetic variation facilitating it has remained elusive. Here, the authors show that secondary contact and introgression between deeply diverged lineages of stickleback fish facilitated rapid ...
David A. Marques   +4 more
doaj   +2 more sources

Adaptive Divergence without Distinct Species Relationships Indicate Early Stage Ecological Speciation in Species of the Rhododendronpseudochrysanthum Complex Endemic to Taiwan [PDF]

open access: yesPlants, 2022
The testing association of environmental variables with genetic and epigenetic variation could be crucial to deciphering the effects of environmental factors playing roles as selective drivers in ecological speciation.
Jia-Jia Cao   +4 more
doaj   +2 more sources

Reevaluating claims of ecological speciation in Halichoeres bivittatus [PDF]

open access: yesEcology and Evolution, 2021
Allopatry has traditionally been viewed as the primary driver of speciation in marine taxa, but the geography of the marine environment and the larval dispersal capabilities of many marine organisms render this view somewhat questionable.
Dan L. Warren   +5 more
doaj   +2 more sources

Continuation of the genetic divergence of ecological speciation by spatial environmental heterogeneity in island endemic plants [PDF]

open access: yesScientific Reports, 2017
Divergent selection plays a critical role not only as a speciation driver but also in maintaining post-speciation divergence. In the absence of direct evidence, ancestral interspecific gene flow between incipient species can reflect ancient selective ...
Bing-Hong Huang   +3 more
doaj   +2 more sources

Drosophila yakuba mayottensis, a new model for the study of incipient ecological speciation [PDF]

open access: yesFly, 2017
A full understanding of how ecological factors drive the fixation of genetic changes during speciation is obscured by the lack of appropriate models with clear natural history and powerful genetic toolkits.
Amir Yassin
doaj   +2 more sources

Allopatric speciation is more prevalent than parapatric ecological divergence in a recent high-Andean diversification (Linochilus: Asteraceae) [PDF]

open access: yesPeerJ, 2023
Elucidating how species accumulate in diversity hotspots is an ongoing debate in evolutionary biology. The páramo, in the Northern Andes, has remarkably high indices of plant diversity, endemicity, and diversification rates.
Oscar M. Vargas   +2 more
doaj   +2 more sources

Ecological speciation [PDF]

open access: yesEcology Letters, 2005
AbstractEcological processes are central to the formation of new species when barriers to gene flow (reproductive isolation) evolve between populations as a result of ecologically‐based divergent selection. Although laboratory and field studies provide evidence that ‘ecological speciation’ can occur, our understanding of the details of the process is ...
Rundle, HD, Nosil, P
openaire   +2 more sources

Multilocus phylogeography and ecological niche modeling suggest speciation with gene flow between the two Bamboo Partridges

open access: yesAvian Research, 2021
Background Understanding how species diversify is a long-standing question in biology. The allopatric speciation model is a classic hypothesis to explain the speciation process. This model supposes that there is no gene flow during the divergence process
Pengcheng Wang   +8 more
doaj   +1 more source

The Sensory Ecology of Speciation

open access: yesCold Spring Harbor Perspectives in Biology, 2023
In this work, we explore the potential influence of sensory ecology on speciation, including but not limited to the concept of sensory drive, which concerns the coevolution of signals and sensory systems with the local environment. The sensory environment can influence individual fitness in a variety of ways, thereby affecting the evolution of both pre-
Denise Dalbosco Dell'Aglio   +4 more
openaire   +4 more sources

Varying Intensities of Introgression Obscure Incipient Venom-Associated Speciation in the Timber Rattlesnake (Crotalus horridus)

open access: yesToxins, 2021
Ecologically divergent selection can lead to the evolution of reproductive isolation through the process of ecological speciation, but the balance of responsible evolutionary forces is often obscured by an inadequate assessment of demographic history and
Mark J. Margres   +6 more
doaj   +1 more source

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