Read e-book online Analytical Biogeography: An Integrated Approach to the Study PDF

By A. A. Myers, P. S. Giller (auth.), Alan A. Myers, Paul S. Giller (eds.)

ISBN-10: 0412400502

ISBN-13: 9780412400506

ISBN-10: 9400904355

ISBN-13: 9789400904354

Biogeography should be outlined easily because the examine of the geographical distribution of organisms, yet this easy defmition hides the good complexity of the topic. Biogeography transcends classical topic parts and includes quite a number medical disciplines that comes with geogra­ phy, geology and biology. now not unusually, for that reason, it capability fairly various things to various humans. traditionally, the learn of biogeogra­ phy has been focused into booths at separate issues alongside a spatio-temporal gradient. At one finish of the gradient, ecological biogeography is worried with ecological approaches happening over brief temporal and small spatial scales, when on the different finish, ancient biogeography is anxious with evolutionary techniques over thousands of years on a wide, usually worldwide scale. among those finish issues lies a 3rd significant compartment taken with the profound results of Pleistocene glaciations and the way those have affected the distribution of contemporary organisms. inside every one of those booths alongside the size gradient, a great number of theories, hypotheses and versions were proposed in an try and clarify the current and earlier biotic distribution styles. To a wide volume, those booths of the topic were non-interactive, that is comprehensible from the several pursuits and backgrounds of many of the researchers. however, the distribu­ tions of organisms around the globe can't be absolutely understood and not using a wisdom of the entire spectrum of ecological and ancient strategies. There are not any levels in biogeography and this day' s biogeographers are essentially born out of a few different discipline.

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Extra resources for Analytical Biogeography: An Integrated Approach to the Study of Animal and Plant Distributions

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Thus many palaeobiological authors have attempted to relate the history of distributional changes to changes in ecological conditions. Thirdly, where does 'palaeobiogeography' fit in? 1 Reality and representation To gauge from Eldredge's (1981) discussion of patterns in biogeography, there is ambiguity in the biogeographical use of the word pattern. Firstly, it seems to refer to what we believe is absolute reality or truth, like an actual sequence of events, a real configuration of geographical features or the true, concrete nature of the earth as it may have been at some particular time in the past.

Everything, in short, is unavoidably filtered through the neurological limitations of our brains and the experiences (first or second hand) stored within them. Unfortunately, from a scientific standpoint, this also has the effect that we reject or overlook information which seems at the time to be irrelevant, without even being aware of it. Comfort (1987) has pointed out that even the sense of seriality (which includes 'time') is generated within themselves by organisms, whereas the universe is a space-time entity.

The descriptive approach refers simply to the collection and documentation of distributional data, clearly a necessary task. In the historical biogeographical literature there now seems to be agreement that observations are subject to perceptual filtering (as above), so the main controversial issues lie in other areas. Investigative biogeography "seeks pattern in order to discover processes", whereas explanatory biogeography "seeks to explain pattern by process" (Patterson, 1983). The problem with explanatory biogeography, as its critics see it, is that it invokes processes, so abdicating the opportunity to investigate processes properly.

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Analytical Biogeography: An Integrated Approach to the Study of Animal and Plant Distributions by A. A. Myers, P. S. Giller (auth.), Alan A. Myers, Paul S. Giller (eds.)

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