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Related to Nearctic: Neotropical, Palearctic, Nearctic Region


 (nē-ärk′tĭk, -är′tĭk)
Of or designating the biogeographic region that includes the Temperate and Arctic areas of North America and Greenland.


(Zoology) of or denoting a zoogeographical region consisting of North America, north of the tropic of Cancer, and Greenland


(niˈɑrk tɪk, -ˈɑr-)

belonging to a zoogeographical division comprising temperate Greenland and arctic North America, sometimes including high mountainous regions of the northern Temperate Zone.
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For comparison, in areas of the eastern Palaearctic and Nearctic that are comparatively well-studied (Rusek & Marshall 1995; Deharveng & Weiner 1984), this tribe usually constitutes less than 25% of overall Neanurinae diversity.
A trip to Canada for the Grade 2 Nearctic Stakes at Woodbine in October is a possible target.
This taxon includes the endemic Nearctic Neoporus Guignot, 1931 containing about 40 species with most having ranges that are restricted to the Appalachian region of North America (Wolfe 1984).
Widely distributed in the Palaearctic and Nearctic Regions and introduced also to the Afrotropical Region (Lobl and Smetana, 2006).
Of the 300 recognized Pseudomyrmecine species representing three genera--Myrcidris, Pseudomyrmex, and Tetraponera (Ward and Downie, 2005)--only 11 species from the largest genus, Pseudomyrmex, have been recorded from the Nearctic region (Ward, 1989).
His handicap days appear to be over and the Hopeful Stakes at HQ or Nearctic Stakes at Woodbine, a race won last year by the David Simcock-trained Caspar Netscher are on the agenda.
mx, Menchaca Armenta, 2004; Melendez Ordonez, 2009), is a locality in the southeastern Nearctic region, near the limits with the neotropics (Fig.
The genus Ophionellus Westwood, in the subfamily Anomaloninae, occurs in the Nearctic and Neotropical regions including Mexico, and also has wing venation strongly reduced, with second recurrent vein and some other distal veins lacking or vestigial (Fig.
According to the Russian Maritime Register of Shipping, Ice2 class includes ice-going vessels capable of non-escorted transit in the ice cake and brash ice of Nearctic seas or in solid ice escorted by an icebreaker, with ice thickness reaching up to 0.
The first hypothesis is that TBE serogroup flaviviruses in the Old and New Worlds persisted during the Pleistocene Epoch in Palearctic and Nearctic refugia (refuge areas), respectively, and then spread across continents (11).
Based on two previously published and independent studies, the Nearctic species Ametropus neavei McDunnough, 1928 (Insecta: Ephemeroptera: Ametropodidae) should be considered a junior synonym of the Holarctic species, A.