منابع مشابه
Monarch butterflies cross the Appalachians from the west to recolonize the east coast of North America.
Each spring, millions of monarch butterflies (Danaus plexippus) migrate from overwintering sites in Mexico to recolonize eastern North America. However, few monarchs are found along the east coast of the USA until mid-summer. Brower (Brower, L. P. 1996 J. Exp. Biol. 199, 93-103.) proposed that east coast recolonization is accomplished by individuals migrating from the west over the Appalachians...
متن کاملTracking multi-generational colonization of the breeding grounds by monarch butterflies in eastern North America.
Insect migration may involve movements over multiple breeding generations at continental scales, resulting in formidable challenges to their conservation and management. Using distribution models generated from citizen scientist occurrence data and stable-carbon and -hydrogen isotope measurements, we tracked multi-generational colonization of the breeding grounds of monarch butterflies (Danaus ...
متن کاملThe chromosomes of skipper butterflies from southwestern North America (Lepidoptera, Hesperiidae).
The skipper butterflies of the families Hesperiidae and Megathymidae re present about 37 per cent of the United States butterfly fauna (713 species according to the latest list; Heitzman, manuscript), yet are poorly known karyologically. Maeki and Remington (1960) have presented chromosome counts on eleven species of Hesperiidae and three species of Megathymidae, and Freeman (1969) has publishe...
متن کاملTwo new genera of metalmark butterflies of North and Central America (Lepidoptera, Riodinidae)
Two new genera of Riodinidae (Insecta: Lepidoptera) are described, Neoapodemia Trujano-Ortega, gen. n. (Neoapodemia nais (W. H. Edwards, 1876), comb. n., N. chisosensis Freeman, 1964, comb. n.) and Plesioarida Trujano-Ortega & García-Vázquez, gen. n. (Plesioarida palmerii palmerii (W. H. Edwards, 1870), comb. n., P. palmerii arizona (Austin, [1989]), comb. n., P. palmerii australis (Austin, [19...
متن کاملAdmixture in North America
The history of North America has been marked by the encounter of populations from different continents. The discovery of the New World began a period defined by human migrations at a much larger scale than in previous history. This movement of people, voluntary or forced, changed profoundly the human landscape. As populations came into contact, admixture followed in varying degrees depending on...
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ژورنال
عنوان ژورنال: Bulletin of the Entomological Society of America
سال: 1976
ISSN: 0013-8754
DOI: 10.1093/besa/22.4.437