speciation

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spe·ci·a·tion

(spē'shē-ā'shŭn),
The evolutionary process by which diverse species of animals or plants are formed from a common ancestral stock.

speciation

/spe·ci·a·tion/ (spe″se-a´shun) the evolutionary formation of new species.

speciation

(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.

spe·ci·a·tion

(spē'shē-ā'shŭn)
The evolutionary process by which diverse species of animals or plants are formed from a common ancestral stock.

speciation

the process by which new species are formed. Speciation occurs when gene flow has effectively ceased between populations where it previously existed and is brought about by ISOLATING MECHANISMS.see GEOGRAPHICAL ISOLATION.
References in periodicals archive ?
The question for Mimizuku remains whether it represents a lineage from a third colonization event, or speciated de novo within the ancestral megalotis.
Test Method for the Speciated Organic Volatile Content of Multi-Component Coatings by Gas Chromatography--Max Wills, California Polytechnic State University
The isolates were biochemically identified based on the colony morphology on blood agar, MacConkey agar and it was speciated by standard biochemical tests (11).
Calibration-less Elemental & Speciated Analysis Brings Unprecedented Accuracy
Selected bacteria were speciated from some samples taken during each visit.
Specific objectives include: 1) develop emission factors for three common Northwest softwood species; 2) evaluate the use of small-scale kiln measurements of speciated VOC versus results obtained at a full-scale commercial kiln; 3) demonstrate the utility of the tracer ratio method for measurement of VOC emissions; and 4) demonstrate the use of a novel new proton transfer reaction mass spectrometer (PTR-MS) to obtain real-time VOC emissions data.
During the report period, enterococci were identified as Group D but not further speciated.
The McFID, which is based on the highly sensitive Flame Ionization Detection methodology, provides continuous on-line measurement of up to 4 different speciated hydrocarbons using a microprocessor controlled chromatographic separation technique.
The specific time period analyzed, June 2001-May 2003, was based on availability of our highly unique speciated PM data from the St.
Organisms were speciated in mycobacterium reference laboratories after referral from laboratories where primary isolation occurred.