Dispersal Biology of Desert Plants, Karen van Rheede van Oudtshoorn; Margaretha W. van
Автор: Elena Gorb; Stanislav S. N. Gorb Название: Seed Dispersal by Ants in a Deciduous Forest Ecosystem ISBN: 904816317X ISBN-13(EAN): 9789048163175 Издательство: Springer Рейтинг: Цена: 27951.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Countless ants transport and deposit seeds and thereby influence the survival, death, and evolution of many plant species. The book gives readers a panoramic view of the hidden, poorly-known interrelations not only between pairs of ants and plant species, but also between species communities in the ecosystem.
Автор: Karen van Rheede van Oudtshoorn; Margaretha W. van Название: Dispersal Biology of Desert Plants ISBN: 3642084397 ISBN-13(EAN): 9783642084393 Издательство: Springer Рейтинг: Цена: 30606.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Our knowledge of the structure and dispersal of "Plants, seeds and currents" in the Westindies tropical fruits and seeds is very limited up to the and Azores.
Автор: T.H. Fleming; Alejandro Estrada Название: Frugivory and seed dispersal: ecological and evolutionary aspects ISBN: 0792321413 ISBN-13(EAN): 9780792321415 Издательство: Springer Рейтинг: Цена: 59256.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Any scientific discipline needs a theoretical framework to guide its development and to sharpen the questions its researchers pursue. In biology, evolution is the grand theoretical framework, and an his- torical perspective is necessary to understand present-day biological conditions. In its formative years, the modern study of the fruit-frugivore mutualism was guided by the 'specialist-generalist' paradigm developed by D. Snow, D. McKey, and H. Howe. Howe reviews the current status of this evolution- ary paradigm and points out that it has been dismissed by many workers before being adequately tested. This is because ecologists working with the tropical plants and frugivorous birds for which the paradigm was originally developed rarely measure the seed dispersal effectiveness of different disperser species. He indicates that this paradigm still has heuristic value and suggests that several additional ecological paradigms, including the concept ofkeystone species ofplants and frugivores and the role that frugivores play in density-dependent mortality in tropical trees, are worth studying. The concept of seed dispersal quality has been central to discussions of fruit-frugivore coevolution. Schupp thoroughly reviews data bearing on this concept, constructs a hierarchical framework for viewing disperser effectiveness, and points out that disperser effectiveness depends on both the quantity and quality of seed dispersal. Effectiveness, in turn, affects both evolutionary and ecological relationships between dispersers and their food plants.
Автор: P. Jacquard; G. Heim; J. Antonovics Название: Genetic Differentiation and Dispersal in Plants ISBN: 3642708390 ISBN-13(EAN): 9783642708398 Издательство: Springer Рейтинг: Цена: 18167.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Proceedings of the NATO Advanced Research Workshop on Population Biology of Plants held at Montpellier, May 21-25, 1984
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