speciation

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spe·ci·a·tion

 (spē′shē-ā′shən, -sē-)
n.
The formation of new biological species through the process of evolution.


spe′ci·ate′ v.
spe′ci·a′tion·al adj.

speciation

(ˌspiːʃɪˈeɪʃən)
n
(Biology) the evolutionary development of a biological species, as by geographical isolation of a group of individuals from the main stock
[C20: from species + -ation]

spe•ci•a•tion

(ˌspi ʃiˈeɪ ʃən, -siˈeɪ-)

n.
the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors that prevent previously interbreeding populations from breeding with each other.
[1895–1900]

spe·ci·a·tion

(spē′shē-ā′shən)
The formation of new biological species by the development or branching of one species into two or more genetically distinct ones. According to the theory of evolution, all life on Earth has resulted from the speciation of earlier organisms.

speciation

the formation of new species.
See also: Biology
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.speciation - the evolution of a biological species
organic evolution, phylogenesis, phylogeny, evolution - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
Translations
References in periodicals archive ?
Presolicitation: Planned Single Source Contract With At&T For Removal Of 3 Telephone Poles With Associated Wires At The Aquatic Nuisance Species Barrier
Because of the longevity of the animal research paradigm, in medical studies it is often assumed that animal-based data are generally applicable to humans, overlooking the significance of the species barrier as described by Greek.
It can easily cross the species barrier and zoonotic jumps from pigs to humans have been observed.
From this study and others that our team has conducted in the past it has become clear that both chimpanzees and gorillas harbor viruses that are capable of crossing the species barrier to humans and have the potential to cause major disease outbreaks," Peeters said.
The strain of is a kind that can jump the species barrier to humans.
The results have wider significance as emerging diseases like Ebola threaten all animal groups, including humans, where viruses have crossed the species barrier from other animals.
While the actual risk of animal-to-human or "zoonotic" transmission is low -- with just 30 confirmed cases in history -- the wide geographic spread boosts the potential for future human outbreaks, which always start with the virus crossing the species barrier, they said.
While the SARS coronavirus probably crossed the species barrier only once by passing from bats to humans, we may presume that the MERS coronavirus is being constantly transmitted from camels to humans, explained Nowotny.
Nearly all major epidemic diseases in humans originated in livestock and health professionals keep a constant watch on animal diseases to assess the risk of strains developing that can cross the species barrier.
In many ways it's remarkable that there have been so few cases, which may be because of the difficulty the disease had of crossing the species barrier and the genetics of humans.
Interestingly, the first report during the SARS outbreak came from the Guangdong Province in southern China, and multiple experimental approaches subsequently revealed that the proximity between animal species and humans, mostly in animal markets where hundreds of live species are sold and in restaurants where exotic delicacies such as palm civets are prepared, enabled the SARS coronavirus to cross the species barrier and infect humans.