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pock. Condition: Fine.
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Condition: Very Good. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.
Published by Academic Journal Offprint from: - Biological Journal 62, Part 3, 1997, 1997
Seller: Nar Valley Books & Prints, King's Lynn, United Kingdom
18pp, 3 figs, Printed Card Cover, VGC,
inb. Condition: As New. sv.text.
Seller: Universitätsbuchhandlung Herta Hold GmbH, Berlin, Germany
XXII, 314 p. Hardcover. Versand aus Deutschland / We dispatch from Germany via Air Mail. Einband bestoßen, daher Mängelexemplar gestempelt, sonst sehr guter Zustand. Imperfect copy due to slightly bumped cover, apart from this in very good condition. Stamped. Gestempelt. Sprache: Englisch.
Publication Date: 1995
Seller: ConchBooks, Harxheim, Germany
Galician exposed shore populations of the direct developing periwinkle Littorina saxatilis are strikingly polymorphic, with an ornamented and banded upper shore form and a smooth and unbanded lower shore form. Intermediates between the two pure forms occur in a narrow mid shore zone together with the parental forms. We have previously shown that the two pure forms share the same gene pool but that mating between them is non-random. This is due to a non-random microdistribution in the zone of overlap, and also to assortative mating. In this study we present data which show that intermediate (hybrid) females mate less often than pure females in micropatches dominated by either of the pure forms, but not in micropatches in which the two pure forms are equally common. Thus, sexual fitness in intermediate females depends on the frequency of both pure morphs. Furthermore, sexual selection against intermediate females also varies with the densities of snails within each micro patch. The biological mechanisms which may explain this particular reduction of female hybrid fitness are discussed. Assortative mating between the pure morphs is sometimes almost complete, while both morphs do not mate the intermediates assortatively. In the light of this, sexual selection against intermediate females may contribute considerably to restrict gene flow between the pure forms. 6 pp., 2 tabs, 4.
Tryckt hos Carl Delén, Stockholm 1809. 35 sidor. Grċpappersomslag. Nött, fläckig inlaga.
414 s. + 16 planschsidor. Förlagsband med skyddsomslag. Fint ex. Exlibris.
Condition: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.
Condition: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.
P. A. Norstedt & Söners Förlag, Stockholm 2011. 414 sidor. Förlagsband med skyddsomslag. Illustrerad. Gott skick.
Language: English
Published by Bristol University Press, 2026
ISBN 10: 1529246237 ISBN 13: 9781529246230
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Language: English
Published by Bristol University Press, 2026
ISBN 10: 1529246237 ISBN 13: 9781529246230
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Seller: Ria Christie Collections, Uxbridge, United Kingdom
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Seller: Revaluation Books, Exeter, United Kingdom
Paperback. Condition: Brand New. reprint edition. 362 pages. 9.25x6.10x0.82 inches. In Stock.
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Condition: New.
Seller: GreatBookPrices, Columbia, MD, U.S.A.
Condition: New.
Seller: GreatBookPrices, Columbia, MD, U.S.A.
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Language: English
Published by Bristol University Press, 2026
ISBN 10: 1529246237 ISBN 13: 9781529246230
Seller: Revaluation Books, Exeter, United Kingdom
Hardcover. Condition: Brand New. gld edition. 192 pages. 9.22x6.15x9.21 inches. In Stock.