1) Occurrence 
In biology, two species or populations are considered sympatric when they exist in the same geographic area and thus regularly encounter one another.{Sfn|Futuyma|2009|pp=448, G-9} An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a pro...
Sympatry means occupying the same geographical location. Compare with parapatry and allopatry . 
Refers to organisms or groups of organisms that occur in the same place.
Refers to the occurrences of species together in the same area.
noun the occurrence of organisms in overlapping geographical areas, but without interbreeding