speciation

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  • noun

Words related to speciation

the evolution of a biological species

References in periodicals archive ?
This was a laboratory-based, prospective study to identify and speciate NTM isolated from specimens submitted to the National Health Laboratory Service (NHLS) central tuberculosis (TB) laboratory at Inkosi Albert Luthuli Central Hospital (IALCH) from patients throughout the province of KwaZulu-Natal Province (KZN), SA.
When a host-switching event occurs, the affected parasite lineage speciates; one of the two newly formed lineages remains associated with its current host and the other attacks another extant host lineage (with each host having an equal probability of being attacked).
Such a species can acquire a higher speciation rate only with a change in trait value, but such a change can only happen if it speciates, which is unlikely precisely because of the small trait value.
One can distinguish between two different "times to speciation." Because, with b populations, there are [Mathematical Expression Omitted] pairs of populations, one can speak of the time until the first pair of populations speciates or the time until the average of the [Mathematical Expression Omitted] pairs of populations speciates (i.e., the mean of [Mathematical Expression Omitted] different speciation times).
By random we mean that each species diverges (speciates) independently of all others and that the probability that a species will diverge at any point in time is equivalent for all species.