Aldemaro Romero's Cave Biology Life in Darkness PDF

By Aldemaro Romero

ISBN-10: 0511596448

ISBN-13: 9780511596445

Biospeleology, the learn of organisms that dwell in caves, has a big power to notify many points of recent biology; but this sector of information is still mostly anchored in neo-Lamarckian perspectives of the wildlife in either its techniques and jargon. Written for graduate scholars and educational researchers, this ebook offers a severe exam of present wisdom and ideas on cave biology, with emphasis on evolution, ecology, and conservation. Aldemaro Romero presents a historic research of principles that experience stimulated biospeleology, discusses evolutionary phenomena in caves, from cave colonization to phenotypic and genotypic adjustments, and integrates techniques and data from diversified organic viewpoints. He demanding situations the normal knowledge concerning the biology of caves, and highlights pressing questions that are supposed to be addressed that allows you to get a greater and extra whole realizing of caves as ecosystems.

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If physical circumstances ever modified organized beings, it should be easily ascertained here. ( . . ) Whoever would settle the 20 · A brief history of cave biology question by direct experiment might be sure to earn the everlasting gratitude of men of science, and here is a great aim for the young American naturalist who would not shrink from the idea of devoting his life to the solution of one great question’. (Agassiz 1851, p. 255) Agassiz’ words leave no doubt about that since he considered A.

He also described a new species of amblyopsid, Chologaster agassizi (Putnam 1872). He always had problems in accepting evolution as an idea: I think that we have as good reasons for the belief in the immutability and early origin of the species ( . . ) as we have for their mutability and late development, and, to one of my, perhaps, too deeply rooted ideas, a far more satisfactory theory; for, with our present knowledge, it is but theory on either side’. (Packard and Putnam 1872, p. 52) However, when dealing with specifics Putnam’s arguments always seemed to be to the point.

Early in his career Cope took a stand against natural selection, never acknowledging it as an important evolutionary force (see, for example, Cope 1864); like the rest of his contemporaries, he became a strong supporter of Lamarckism. However, he extended Lamarck’s ideas by representing evolution as a phenomenon governed by trends: ‘The method of evolution has apparently been one of successional increment or decrement of parts along definite lines’ (Cope 1896, p. 24). This is what was later called orthogenesis, the view that evolution has a life of its own that can take it in certain directions.

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Cave Biology Life in Darkness by Aldemaro Romero

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