Drosophila populi species group
Encyclopedia
The Holarctic
Drosophila populi species group
belongs to the subgenus Sophophora
and contains two species, Drosophila ingrica and Drosophila populi. D. ingrica is found in the Palearctic
, while D. populi is found in the Nearctic
. Both species are found in the northernmost subarctic
forest zone, and are strongly associated with cotton wood.
Holarctic
The Holarctic ecozone refers to the habitats found throughout the northern continents of the world as a whole. This region is divided into the Palearctic, consisting of Northern Africa and all of Eurasia, with the exception of Southeast Asia and the Indian subcontinent, and the Nearctic,...
Drosophila populi species group
Species group
A species group is an informal taxonomic rank into which an assemblage of closely related species within a genus are grouped because of their morphological similarities and their identity as a biological unit with a single monophyletic origin.-Use:...
belongs to the subgenus Sophophora
Sophophora
The paraphyletic subgenus Sophophora of the genus Drosophila was first described by Alfred Sturtevant in 1939. It contains the best known drosophilid species, Drosophila melanogaster. Sophophora translates as carrier of wisdom...
and contains two species, Drosophila ingrica and Drosophila populi. D. ingrica is found in the Palearctic
Palearctic
The Palearctic or Palaearctic is one of the eight ecozones dividing the Earth's surface.Physically, the Palearctic is the largest ecozone...
, while D. populi is found in the Nearctic
Nearctic
The Nearctic is one of the eight terrestrial ecozones dividing the Earth's land surface.The Nearctic ecozone covers most of North America, including Greenland and the highlands of Mexico...
. Both species are found in the northernmost subarctic
Subarctic
The Subarctic is a region in the Northern Hemisphere immediately south of the true Arctic and covering much of Alaska, Canada, the north of Scandinavia, Siberia, and northern Mongolia...
forest zone, and are strongly associated with cotton wood.