hybrid swarm


Also found in: Medical.

hybrid swarm

[′hī·brəd ′swȯrm]
(genetics)
A collection of hybrids produced when there is a breakdown of isolating barriers between two species whose areas of distribution overlap.
References in periodicals archive ?
We also document the existence of a hybrid swarm in northern Sri Lanka.
A hybrid swarm that includes both standard forms and hybrids would show no consistent variation in the index.
2B) are consistent with an extensive hybrid swarm covering much of the northern half of Sri Lanka.
However, the Dinopium woodpecker hybrid swarm is unprecedented in tropical birds.
2) where there is now a high density (30) of jaffnense in a hybrid swarm with diversity of morphs.
During a study to identify pollinators of a hybrid swarm of azalea, Rhododendron arborescens (Pursh) Torrey, R.
The bald is home to a hybrid swarm of multicolored azaleas, with flowers ranging in color from red, orange, pink, yellow, to white, and many of these flower colors and forms are not found on other balds.
Washington, May 23 (ANI): Certain species of stickleback fish have collapsed into hybrid swarms as water clarity in their native lakes has changed, and certain species of tree frogs have collapsed as vegetation has been removed around their shared breeding ponds.
Morphometric evidence of hybrid swarms in mixed populations of Polystichum munitum and P.
Hybridization and introgression can lead to harmful effects including hybrid swarms, outbreeding depression, and reduced fitness, and can be especially problematic when one species is less abundant than the other (Rhymer and Simberloff 1996, Allendorf et al.
The potential for hybrid expansion warrants further consideration of the conservation of genetically 'pure' populations, as hybridization can lead to reduced fitness of parental species through outbreeding depression and loss of local adaptations, as well as the replacement of pure species by hybrid swarms (Rhymer and Simberloff 1996, Allendorf et al.