migration (migrashon)

[ extent and the wonderful periodicity of the movement, nor for the fact that individuals sometimes return to exactly the same spot to breed again, after pa ing the winter perhaps you sands of miles away. Migrations of mammals are more irregular than those of birds, le definitely related to latitude and longitude, and more obviously dependent upon food-supply: such are the excursions, often in enormous hordes, of various arctic animals, as lemmings and other rodents, reindeer, muskoxen, foxes, etc. Such movements do not appear to be specially related to reproduction. Many fishes migrate from and back to the sea, ascending rivers to spawn, as is notably the case with anadromous fishes of the salmon and herring families; with eels the case is reversed; with many fishes the catadromous migration is between deeper and shallower, or colder and warmer, salt water. Periodical migration is also marked with certain insects. Thus, Anosia plexippus, the milkweed-butterfly, migrates southward in the fall to hibernate in the pine woods of IMG:content-0617.png:[blocks in formation] Adventures that beguiled and cheered Their grave migration . Words worth, Excursion, vii. Our remote forefathers must have made endle earlier migrations as parts of the great Aryan body, as parts of the smaller Teutonic body. But our voyage from the Low Dutch mainland to the isle of Britain was our first migra tion as a people. E. A. Freeman , Amer. Lects., p. 31. 2. A number of animals migrating together; the total of the individuals or species which perform any particular migration; also, the time or period occupied in migrating.-31. Change of place; removal. Such alterations, transitions, migrations , of the centre of gravity, and elevations of new islands, had actually happened. Woodward , E ay towards a Nat. Hist. of the 41. Residence in a foreign country; banish ment. [Earth. ( Latham .) Wo is me, too too long banished from the Christian world, with such animosity, as if it were the worst of enemies, and meet to be adjudged to a perpetual migration. Bp . Hall , Invisible World, The Epistle. Bathic migration, migration of fishes from one depth of water to another; vertical or altitudinal change of habitat in the sea: distinguished from equatorial migration. The fishes of any region may find water of suitable warmth by moving north or south along the shores of the continent, or by changing to waters of le or greater depth. The former may be called equatorial, the latter bathic mi gration. Bathic migration is the most common. Goode, Menhaden. Equatorial migration, ordinary meridional migration or toward equator. def. 1. migrationist (mi-gra's hon-ist), n. tion + -ist.] One who or that which Kimigra migrates. The descendants of previous ages of migrationists. Jour. Anthrop. Inst., XVII. 130. migration-station (mi-gra's hon-sta"shon), п. A station or post for observing facts concerning the migration of birds. Migration - stations now exist in every state and territory of the Union excepting Delaware Nevada. Science, IV. 374. migration-wave (mi-gra's hon-wav), n. The migration of many birds simultaneously, so that they appear at once at a given place in great numbers in comparison with those that go before or come after; the height of the migration of a given species. Coues . migrator (mi'gra-tor), n. [ migrator , a wanderer, migrare , pp. migratus , migrate: see migrate .] One who or that which migrates. These wild migrators . The New Mirror (1843), II. 121. migratory (migra-to-ri), a . [= F. migratoire Sp. It. migratorio ; as migrate + -ory.] 1. Given to or characterized by migration; roving or removing from place to place; unsettled: as, the pastoral storal tribes of uncivilized men are generally migratory ; to lead a migratory life. Yet, sweet Nightingale! From the warm breeze that bears thee on, alight At will, and stay thy migratory flight. = Words worth, Evening Voluntaries, v. The same species is often sedentary in one part of Europe, and migratory in another. A. R. Wallace, Distribution of Animals, I. 20. 2. Pertaining or relating to migration or to a tendency to migrate. 3759 Emperor of Japan, sometimes erroneously spoken of as the spiritual emperor. See shogun. Mikania (mi-kā'ni-ä), n. [NL. (Willdenow), named after J. C. Mikan, a Bohemian botanist (1769-1844).] A genus of composite plants of the suborder Tubuliflore, the tribe Eupato riaceæ, and the subtribe Agerateæ. The principal characteristics are an involucre of four slightly unequal bracts, four-flowered heads which racemed panicled, and pappus with very numerous scabrous bristles arranged in one row. The plants are shrubs or herbs, which are almost always climbing or twining, with opposite leaves, and small white, flesh-colored, or pale-yellowish heads. About 140 species have been enumerated, but they may probably be reduced to 100, They are natives of the warmer parts of America, with the exception of one species, which is found in Asia and tropical Africa. M. scandens, the climbing hempweed, is a high twiner, with cordate somewhat deltoid or hastate leaves and heads of pale flesh-colored flowers in dense cymes, climbing over copses along streams; it ranges through the eastern and southern United States into Mexico and to Brazil. M. Guaco is one of the guaco-plants of tropical America. mikelt, a. and n. A Middle English form of mickle. See mileage . mil. An abbreviation of military. milaget (milaj), n. Milanese (mil-an-es' or -ēz'), a. and n. [ II. n. sing . and pl . A citizen or citizens of Milan. The Milanese, the territory of the former duchy of Milan in northern Italy. In 1499 the king cro ed the Alps into the Milanese. Encyc. Brit ., IX. 554.