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Author: Alf Erling Porsild
Publisher: Ottawa: National Museum of Natural Sciences Natural Museums of Canada
ISBN:
Category : Nature
Languages : en
Pages : 686
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Book Description
Guide to flowering plants and ferns of the continental Northwest Territories.
Author: Alf Erling Porsild
Publisher: Ottawa: National Museum of Natural Sciences Natural Museums of Canada
ISBN:
Category : Nature
Languages : en
Pages : 686
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Book Description
Guide to flowering plants and ferns of the continental Northwest Territories.
Author: Tom Reaume
Publisher: University of Regina Press
ISBN: 9780889772144
Category : Nature
Languages : en
Pages : 790
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Book Description
620 Wild Plants of North America describes, in beautiful detail, the characteristic features of 89 families of vascular plants--including trees, shrubs, vines, wildflowers, grasses, sedges, horsetails, and club-mosses--using labeled ink drawings, text and range maps.
Author: James A. Larsen
Publisher: Springer Science & Business Media
ISBN: 1461387914
Category : Science
Languages : en
Pages : 270
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Book Description
It is enough to work on the assumption that all of the details matter in the end, in some unknown but vital way. Edward O. Wilson, Biophilia Advances in knowledge of northern ecology have been so rapid that to undertake a synthesis of all the literature now available would be a major enterprise, perhaps even a life's work, and so it must be considered permissible to fill in a few gaps, follow one's own inclinations, leaving comprehensive syntheses to those willing to undertake them. This is the rubric under which I have written, reporting some of the more interesting data I and others have obtained over the years, often diverging into discussions of plants, soils, climate, and faunal relationships which have perhaps not previously been dealt with extensively, or at least in quite the same way. This is purely intentional, since I find it difficult to summon up the needed enthusiasm, at this late hour, to write on topics which unfortunately for me have little attraction. I have thus written for the pleasure derived from depicting, perhaps at times as something of an impressionist, a fascinating biotic region, a captivating land, a collection of interesting ecological problems, environmental relationships to be discerned in part, perhaps understood to some small degree, perhaps one day to be modeled mathematically. As Leo Szilard once wrote: ': . . to be able to say even this much might be of some value" (Szilard, 1960).
Author: Benjamin Lincoln Robinson
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 688
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Book Description
Author:
Publisher:
ISBN:
Category : Plants
Languages : en
Pages : 530
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Book Description
Author:
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ISBN:
Category : Botany
Languages : en
Pages : 698
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Book Description
Author:
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ISBN:
Category : Plants
Languages : en
Pages : 400
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Book Description
Author:
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ISBN:
Category : Ecology
Languages : en
Pages : 570
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Book Description
Indexes journal articles in ecology and environmental science. Nearly 700 journals are indexed in full or in part, and the database indexes literature published from 1982 to the present. Coverage includes habitats, food chains, erosion, land reclamation, resource and ecosystems management, modeling, climate, water resources, soil, and pollution.
Author:
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ISBN:
Category : Natural history
Languages : en
Pages : 474
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Book Description
Author:
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ISBN:
Category : Environmental policy
Languages : en
Pages : 634
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Book Description
