However, in nature, at least 89 natural hybrids
have been found with established parents and 36 hybrids of uncertain origin as well as five natural hybrids
with other genera (ex.
Among the five inter-specific natural hybrids
recognized up to date in the A.
A natural hybrid
mud crab (Decapoda, Portunidae) from Japan.
2006) studying Cichla populations from the upper Parana river floodplain, through nuclear and mitochondria's markers, demonstrated that the introduced populations of Cichla kelberi and Cichla piquiti from the region are crossing and forming natural hybrids
population size, patterns of recruitment) on the population genetic structure and evolution of experimental and natural hybrid
populations (Smith et al.
1996) to estimate hierarchical mating patterns in three natural hybrid
zones between the wild sunflower species, H.
He said the hybrid was potentially a low-cost technology which could be deployed on 76% of the UK's farmand He added: "Festulolium natural hybrids
are very much the grasses for the future.
Consequently, there are more studies on parasitism by monogeneans of the natural hybrid
populations of these fish (Cloutman 1988, El Gharbi et al.
Unfortunately, I was totally unaware of the existence of Tillandsia x complachroma, a natural hybrid
A case study of Alburnus alburnus X Rutilus rubilio, a natural hybrid
of Lake Mikri Prespa, Northern Greece.
Woodruff (1973) recognized three broad types of natural hybrid
zones; allopatric, parapatric and sympatric.
Dewey and Holmgren (1962) reported on the cytology and morphology of a natural hybrid
between Elymus cinereus Lamson Scribner & Merr.
Most of the evidence for this relationship comes from studies on natural hybrid
zones in which lower levels of developmental stability are reported for hybrid populations (for review see Graham 1992).
Both (4) and (5) have been widely used in analyzing natural hybrid
zones (Barton and Hewitt 1985; Barton and Gale 1993).
This has been demonstrated both in California irises (Smith and Clarkson 1956) and in a natural hybrid
zone between I.