incipient species


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incipient species

a population of a species which is approaching the point of genetic isolation from other populations of the same species, though presently capable of interbreeding with them.
References in periodicals archive ?
Light and dark color morphotypes, perhaps incipient species, live off Argentina (Venurus et al.
Aspects of the Life Histories of Pinkrose Rockfish (Sebastes simulator) and Swordspine Rockfish (Sebastes ensifer) with notes on the Subgenus Sebastomus
Another reason is that, to Darwin, he is not an "incipient species" (53), one whose variation of the reproductive drive, a variation in structure brought about by the environment, a structure transferable to the next generation and inheritable from an earlier one is qualified to be so classed.
Walking with Shadows and the critique of the evolutionary character of Nigerian narratives
may be incipient species may be strengthened by our own recent molecular data that indicate that chromosomally identified larvae of S.
A remnant of an incipient speciation event in the Simulium arcticum complex (Diptera: Simuliidae)
Variations on that skeletal theme at the African site and elsewhere arose from "short evolutionary experiments in small and fairly isolated populations that may have gone extinct as incipient species," he argues.
Erectus experiment: fossil find expands Stone Age anatomy
These varieties may be incipient species; more collection in the remote areas where they live is essential to unders tand better how isolated they are and whether they are genetically differentiated from the wide-ranging type variety.
Reconstruction of the biogeographical history of Malesherbiaceae
Courtship rituals and reproductive isolation between the races or incipient species of Drosophila paulistorum.
A molecular phylogeny of the Drosophila willistoni group: conflicts between species concepts?
Further work on other floral characters as well as the soil ecology and population genetics is needed to understand how these incipient species were established and to predict their likely long-term fate.
Sympatric sister species of Californian antirrhinum and their transiently specialized pollinators
When discussing the significance of differences resulting from single or successive fusions or fissions it is common to ascribe their importance solely to postmating barriers to gene exchange and the progressive isolation of populations and incipient species that result (cf.
Robertsonian fusion and centric fission in karyotype evolution of higher plants
But the effect on congruence of gene trees and species trees would depend on how speciation occurs; that is, whether the incipient species arises in a geographically localized area or from the whole of the ancestral species population.
Mitochondrial-gene trees versus nuclear-gene trees, a reply to Hoelzer
Incipient species, presumably, later became isolated because mate choice was connected either ecologically or genetically to gall location (as with host races; Craig et al., 1993).
Larval performance and association within and between two species of hackberry nipple gall insects, Pachypsylla spp. (Homoptera: Psyllidae)
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