Boreal sentence example

boreal
  • He further found that there was an element which he termed boreal in a more intense degree, which amounted to about a fifteenth of the whole flora.

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  • With this animal diet everywhere vegetable substances were mixed, even in the boreal regions.

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  • Except in the boreal areas the breech-clout was nearly universal with men, and the cincture or short petticoat with women.

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  • Fauna.Differences of temperature have produced in North America seven transcontinental life-zones or areas characterized by relative uniformity of both fauna and flora; they are the Arctic, Hudsonian and Canadian, which are divisions of the Boreal Region; the Transition, Upper Austral and Lower Austral, which are divisions of the Austral Region, and the Tropical.

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  • The boreal embraces the highest mountain altitudes; the transition belts it on both sides of the continental divide; the upper Sonoran takes in about the eastern half of the plains region east of the mountains, and is represented further by two small valley penetrations from Utah.

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  • There are firs and spruces on the mountains, characteristic of the Boreal zone; pines characteristic of the Transition zone; pinon juniper, greasewood and the universally conspicuous sage-brush, characteristic of the Upper Sonoran zone.

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  • A. borealis is a northern and boreal species of Honey Fungus, parasitic and saprotrophic on various trees but often on Birch.

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  • Using the interactive map of Canada the user can view the distribution of the different wetland regions including boreal, mountain and arctic.

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  • In September 1994, the Manitoba Endangered Species Advisory Committee assessed the status of boreal woodland caribou in Manitoba as endangered.

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  • I have studied long-term fire history of boreal forests in Finland by using fine resolution pollen and charcoal analyzes of varied lake sediments.

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  • There are widespread transitions to wet heath, woodland, juniper scrub and 4060 Alpine and boreal heaths.

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  • This takes account of - (I) the ArcticAlpine zone, including all the vegetation of the region bordering on perpetual snow; (2) the Boreal zone, including the temperate lands of North America, Europe and Asia, all of which are substantially alike in botanical character; (3) the Tropical zone, divided sharply into (a) the tropical zone of the New World, and (b) the tropical zone of the Old World, the forms of which differ in a significant degree; (4) the Austral zone, comprising all continental land south of the equator, and sharply divided into three regions the floras of which are strikingly distinct - (a) South American, (b) South African and (c) Australian; (5) the Oceanic, comprising all oceanic islands, the flora of which consists exclusively of forms whose seeds could be drifted undestroyed by ocean currents or carried by birds.

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  • Dr Hart Merriam takes the broad point of view " that the whole of extratropical North America consists of but two primary life regions, a Boreal region, which is circumpolar,;and a Sonoran or Mexican tableland region which is unique."

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  • Boreal offers six ski lifts and 41 trails, 55 percent of which offer intermediate-level skiing.

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  • Of these 40 are boreal, 22 austral and 69 tropical.

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  • In the Old World the boreal zone is almost sharply cut off and afforded no means of escape for the Miocene vegetation when the climate became more severe.

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  • A remarkable &c, expedition by Baron Toll in 1892 through the regions watered by the Lena, resulted in the collection of material which Afghan- will greatly help to elucidate some of the problems which beset the geological history of the world, proving inter alia the primeval existence of a boreal zone of the Jurassic sea round the North Pole.

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  • As in European Russia, so in Siberia, three principal zones - the arctic, the boreal and the middle - may be distinguished, and these may be subdivided into several sub-regions.

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  • On the whole, we may say that the arctic and boreal faunas of Europe extend over Siberia, with a few additional species in the Ural and Baraba region - a number of new species also appearing in East Siberia, some spreading along the high plateau and others along the lower plateau from the steppes of the Gobi.

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  • The boreal fauna is, of course, much more abundant; but here also the great bulk of the species, both mammals and birds, are common to Europe and Asia.

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  • The Transition zone, in which the extreme southern limit of several boreal species overlaps the extreme northern.

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  • In the forest regions north of the lakes the vegetation on the shores of Lake Erie requires a high winter temperature, while the east and north shores of Lake Superior have a boreal vegetation that shows the summer temperature of this enormous water-stretch to be quite low.

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  • Between them, these two closely related aspen species cover virtually the entire boreal biome.

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  • The boreal is cold, the austral warm, and the tropical affords conditions of heat and moisture to which the vegetation of the others would be intolerant.

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