Visar resultat för..."Orians"
Sökningen "Orians upplevelser Artur Lundkvist" gav inga träffar.271 kr
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Earth System Science
From Biogeochemical Cycles to Global Changes
817 kr
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The North Pacific temperate rainforest, stretching from southern Alaska to northern California, is the largest temperate rainforest on earth. This book provides a multidisciplinary overview of key issues important for the management and conservation of the northern portion of this rainforest, located in northern British Columbia and southeastern Alaska.This region encompasses thousands of islands and millions of acres of relatively pristine rainforest, providing an opportunity to compare the ecological functioning of a largely intact forest ecosystem with the highly modified ecosystems that typify most of the world''s temperate zone. The book examines the basic processes that drive the dynamic behavior of such ecosystems and considers how managers can use that knowledge to sustainably manage the rainforest and balance ecosystem integrity with human use. Together, the contributors offer a broad understanding of the challenges and opportunities faced by scientists, managers, and conservationists in the northern portion of the North Pacific rainforest that will be of interest to conservation practitioners seeking to balance economic sustainability and biodiversity conservation across the globe.
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The variety of social systems among the New World blackbirds (Family Icteridae) and the structural simplicity of their foraging environment provide excellent opportunities for testing theorics about the adaptive significance of their behavior. Here Gordon Orians presents the results of his many years of research on how blackbirds utilize their marsh environments during the breeding season. These results stem from information he gathered on three species during ten breeding seasons in the Pacific Northwest, on Red-winged blackbirds during two breeding seasons in Costa Rica, and on three species during one breeding season in Argentina. The author uses models derived from Darwin''s theory of natural selection to predict the behavior and morphology of individuals as well as the statistical properties of their populations. First he tests models that predict habitat selection, foraging behavior, territoriality, and mate selection. Then he considers some population patterns, especially range of use of environmental resources and overlap among species, that may result from those individual attributes. Professor Orianns concludes with an overview of the structure of bird communities in marshes of the world and the relation of these patterns to overall source availability in these simple but productive habitats.
218 kr
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Discover the infinite realms of asexual love across sci-fi, fantasy, and contemporary storiesFrom a wheelchair user racing to save her kidnapped girlfriend and a little mermaid who loves her sisters more than suitors, to a slayer whose virgin blood keeps attracting monsters, the stories of this anthology are anything but conventional. Whether adventuring through space, outsmarting a vengeful water spirit, or surviving haunted cemeteries, no two aces are the same in these 14 unique works that highlight asexual romance, aromantic love, and identities across the asexual spectrum.
250 kr
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247 kr
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11 kr
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Bibliothek der unbekannten Länder: Färöer
308 kr
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355 kr
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