Results 31 to 40 of about 7,250 (186)
Simulated ecology-driven sympatric speciation [PDF]
11 pages, 5 figures, 1 table, uses package ...
Martins, J. S. Sa' +2 more
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Evolution of blind beetles in isolated aquifers: a test of alternative modes of speciation.
Evidence is growing that not only allopatric but also sympatric speciation can be important in the evolution of species. Sympatric speciation has most convincingly been demonstrated in laboratory experiments with bacteria, but field-based evidence is ...
Remko Leijs +5 more
doaj +1 more source
Background Teleost fishes of the Coregonidae are good model systems for studying postglacial evolution, adaptive radiation and ecological speciation. Of particular interest is whether the repeated occurrence of sympatric species pairs results from in ...
Nitz Barbara +5 more
doaj +1 more source
Hybridization, Homogamy, and Sympatric Speciation [PDF]
Mayr (1947) has presented a strong case against the hypothesis of sympatric speciation in the course of supporting the universal hypothesis of geographic (or at least microgeographic) speciation. In the summary (p. 286) of that paper he made the following statement: "It is unproven and unlikely that reproductive isolation can develop between contiguous
openaire +1 more source
Description of six new species of the subgenus Panophrys within the genus Megophrys (Anura, Megophryidae) from southeastern China based on molecular and morphological data [PDF]
The diversity of the subgenus Panophrys within the genus Megophrys has been revealed to be extremely underestimated from southeastern China. Herpetological surveys coupled with extensive sampling in a longitudinal mountain belt located in southeastern ...
Jian Wang +7 more
doaj +3 more sources
Sympatric Speciation: Why the Controversy? [PDF]
Two recent studies provide convincing evidence that speciation without geographic isolation--sympatric speciation--has occurred within isolated island habitats, but we remain ignorant of how frequent the process really is.
openaire +2 more sources
Ability of Current Phylogenetic Clustering to Detect Speciation History
Phylogenetic diversity aims to quantify the evolutionary relatedness among the species comprising a community, using the phylogenetic tree as the metric of the evolutionary relationships.
Athanasios S. Kallimanis +4 more
doaj +1 more source
Background Speciation often occurs in complex or uncertain temporal and spatial contexts. Processes such as reinforcement, allopatric divergence, and assortative mating can proceed at different rates and with different strengths as populations diverge ...
Bunje Paul ME +2 more
doaj +1 more source
Visual mate preference evolution during butterfly speciation is linked to neural processing genes
The genetic mechanisms underlying mate choice decisions can inform our understanding of speciation. A study on Heliconius butterflies identifies 5 candidate genes that would allow sympatric species to evolve distinct preferences without altering their ...
Matteo Rossi +7 more
doaj +1 more source
Sympatric speciation under incompatibility selection [PDF]
The existing theory of sympatric speciation assumes that a local population splits into two species under one-dimensional disruptive selection, which favors both of the opposite extreme values of a quantitative trait. Here we model sympatric speciation under selection that favors high values of either of the two independently inherited traits, each ...
Yael, Artzy-Randrup +1 more
openaire +2 more sources

