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Author: W. D. Palfreyman
Publisher:
ISBN:
Category : History
Languages : en
Pages : 24
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Author: W. D. Palfreyman
Publisher:
ISBN:
Category : History
Languages : en
Pages : 24
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 624
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Author: Christopher G. Newhall
Publisher:
ISBN:
Category : Calderas
Languages : en
Pages : 620
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Author: Ernst Mayr
Publisher: Oxford University Press
ISBN: 9780195349665
Category : Science
Languages : en
Pages : 550
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Book Description
Speciation is the process by which co-existing daughter species evolve from one ancestral species - e.g., humans, chimpanzees, and gorillas arising from a common ancestor around 5,000,000 years ago. However, many questions about speciation remain controversial. The Birds of Northern Melanesia provides by far the most comprehensive study yet available of a rich fauna, composed of the 195 breeding land and fresh-water bird species of the Bismarck and Solomon Archipelagoes east of New Guinea. This avifauna offers decisive advantages for understanding speciation, and includes famous examples of geographic variation discussed in textbooks of evolutionary biology. The book results from 30 years of collaboration between the evolutionary biologist Ernst Mayr and the ecologist Jared Diamond. It shows how Northern Melanesian bird distributions provide snapshots of all stages in speciation, from the earliest (widely distributed species without geographic variation) to the last (closely related, reproductively isolated species occurring sympatrically and segregating ecologically). The presentation emphasizes the wide diversity of speciation outcomes, steering a middle course between one-model-fits-all simplification and ungeneralizable species accounts. Questions illuminated include why some species are much more prone to speciate than others, why some water barriers are much more effective at promoting speciation than others, and whether hypothesized taxon cycles, faunal dominance, and legacies of Pleistocene land bridges are real. These years of study have resulted in a huge database, complete with distributions of all 195 species on 76 islands, together with their taxonomy, colonization routes, ecological attributes, abundance, and overwater dispersal. Color plates depict 88 species and allospecies, many of which have never been seen before. For students of speciation, Northern Melanesian birds now constitute a model system against which other biotas can be compared. For population biologists interested in other problems besides speciation, this rich database can now be mined for insights.
Author:
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 218
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Author:
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Category : Earthquakes
Languages : en
Pages : 324
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Author: John H. Latter
Publisher: Springer Science & Business Media
ISBN: 3642737595
Category : Science
Languages : en
Pages : 621
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The contributions in this book were presented, orally or as posters, at the International Volcanological Congress held in New Zealand from 1 to 9 February 1986, the centenary year of the Tarawera eruption of 10 June 1886. More than 500 people, from 29 countries, attend ed the Congress. Most of these works formed part of Symposium 4, "Volcanic Hazards - Prediction and Assess ment", convened by J.H. Latter, R.R. Dibble, D.A. Swanson and C.G. Newhall. The collection represents over half of the published abstracts of Symposium 4, together with three papers given at the Symposium, which lacked abstracts, and two which were part of Symposium 1 on pyroclastic flow deposits. The contribu tions cover a good proportion of the volcanically active parts of the world, with Italy, Japan, the West Indies and the USA especially well represented. Mount Erebus, Vulcano and Rabaul are individual volcanoes which have been treated in particular detail. Unfor tunately, there are no chapters in the book dealing with Africa, the Atlantic islands (except Iceland), Hawaii, Central America (except Mexico), or South America (in spite of the major disaster at Nevado del Ruiz Volcano in 1985).
Author:
Publisher:
ISBN:
Category : Volcanoes
Languages : en
Pages : 200
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Author:
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ISBN:
Category : Archives
Languages : en
Pages : 256
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Author:
Publisher:
ISBN:
Category : Geology, Structural
Languages : en
Pages : 524
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