Description du livre Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Honeybees are as small as flies or as large as hornets, nesting in nar row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground. They occur in tropical zones and in the forests of the Ural mountains, they survive seven months of winter and even longer periods of drought and heat. Historically, they lived through a extended time of stagnation in the tropics from the mid-Tertiary, but then experienced an explosive evolution during the Pleistocene, re sulting in the conquest of huge new territories and the origin of two dozen subspecies in Apis mellifera. This vast geographic and ecologic diversification of the genus Apis was accompanied by a rich morphological variation, less on the level of species than at the lowest rank, the subspecies level. Variation being exclusively of a quantitative kind at this first step of speciation, tradi tional descriptive methods of systematics proved to be unsatisfactory, and honeybee taxonomy finally ended up in a confusing multitude of inadequately described units. Effective methods of morphometric-sta tistical analysis of honeybee popUlations, centered on limited areas, have been developed during the last decades. Only the numerical characterization of the populations, together with the description of behavior, shows the true geographic variability and will end current generalizations and convenient stereotypes. 300 pp. Englisch. N� de r�f. du vendeur 9783642726514

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Biogeography and Taxonomy of Honeybees

Friedrich Ruttner

Edit� par Springer Berlin Heidelberg (2012)

ISBN 10 : 3642726518 ISBN 13 : 9783642726514

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Description du livre Etat : New. N� de r�f. du vendeur 5069109

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Biogeography and Taxonomy of Honeybees

Friedrich Ruttner

Edit� par Springer Berlin Heidelberg (2012)

ISBN 10 : 3642726518 ISBN 13 : 9783642726514

Neuf Taschenbuch Quantit� disponible : 1

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(Einbeck, Allemagne)

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Description du livre Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - Honeybees are as small as flies or as large as hornets, nesting in nar row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground. They occur in tropical zones and in the forests of the Ural mountains, they survive seven months of winter and even longer periods of drought and heat. Historically, they lived through a extended time of stagnation in the tropics from the mid-Tertiary, but then experienced an explosive evolution during the Pleistocene, re sulting in the conquest of huge new territories and the origin of two dozen subspecies in Apis mellifera. This vast geographic and ecologic diversification of the genus Apis was accompanied by a rich morphological variation, less on the level of species than at the lowest rank, the subspecies level. Variation being exclusively of a quantitative kind at this first step of speciation, tradi tional descriptive methods of systematics proved to be unsatisfactory, and honeybee taxonomy finally ended up in a confusing multitude of inadequately described units. Effective methods of morphometric-sta tistical analysis of honeybee popUlations, centered on limited areas, have been developed during the last decades. Only the numerical characterization of the populations, together with the description of behavior, shows the true geographic variability and will end current generalizations and convenient stereotypes. N� de r�f. du vendeur 9783642726514

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Biogeography and Taxonomy of Honeybees

Ruttner, Friedrich

Edit� par Springer (2012)

ISBN 10 : 3642726518 ISBN 13 : 9783642726514

Neuf Couverture souple Quantit� disponible : 1

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(Tucson, AZ, Etats-Unis)

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Description du livre Etat : New. New! This book is in the same immaculate condition as when it was published. N� de r�f. du vendeur 353-3642726518-new

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