sympatric
adjective
sym·pat·ric sim-ˈpa-trik 
1
: occurring in the same area
2
: occupying the same geographical range without loss of identity from interbreeding
sympatric species
also : occurring between populations that are not geographically separated
sympatric speciation
compare allopatric sympatrically
sim-ˈpa-tri-k(ə-)lē
adverb sympatry
ˈsim-ˌpa-trē
noun 
Example Sentences
Recent Examples on the Web But other researchers say the research appears to show how sympatric speciation happens—and in this case, happened so quickly. 
Elizabeth Pennisi, Science | AAAS, 25 Mar. 2021
Elizabeth Pennisi, Science | AAAS, 25 Mar. 2021 Word History
Etymology
sym- + Greek pátra "native country, homeland" (derivative from the stem of patḗr "father") + -ic entry 1 — more at father entry 1
Note: The word was introduced by the British biologist Edward Bagnall Poulton (1856-1943) in the 1903 Presidential Address to the Entomological Society of London, published in the Transactions of the Entomological Society of London for 1903 (London, 1903-04), p. xc.
First Known Use
circa 1904, in the meaning defined at sense 1