sympatric

[sim-pa-trik, -pey-]

sym·pat·ric

[sim-pa-trik, -pey-]
adjective Biology, Ecology.
originating in or occupying the same geographical area.

Origin:
1900–05; sym- + Greek pátr(ā) fatherland (patr-, stem of patḗr father + feminine noun suffix) + -ic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Sympatric is always a great word to know.
So is selection. Does it mean:
the merging of two or more cells into a single cell
a process that results in differential reproduction among a population so that the inheritable traits of only certain individuals are passed on
Collins
World English Dictionary
sympatric (sɪmˈpætrɪk)
 
adj
Compare allopatric (of biological speciation or species) taking place or existing in the same or overlapping geographical areas
 
[C20: from syn- + -patric, from Greek patra native land, from patēr father]
 
sym'patrically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
sympatric   (sĭm-pāt'rĭk)  Pronunciation Key 
Ecology
Occupying the same or overlapping geographic areas without interbreeding. Although they share the same geographic range, sympatric populations of related organisms become isolated from each other reproductively. This can happen by the development of subpopulations that become dependent on distinct food sources or that evolve distinct seasonal mating behavior. Flowering plants frequently become reproductively isolated through the development of polyploid hybrids (hybrids with three or more sets of chromosomes) that cannot backcross with either parent. ◇ The development of new species as a result of the reproductive isolation of populations that share the same geographic range is called sympatric speciation. Compare allopatric.
The American Heritage® Science Dictionary
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