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  • 1
    Electronic Resource
    Electronic Resource
    Meaning of Density-Dependence and Related Terms in Population Dynamics (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1778-1780 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the most familiar concepts of population dynamics is the idea of the regulation of abundance by density-dependent factors, which operate more severely at high density than at low density, per individual of a population. But there has been some variation in the meaning and scope of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1811778a0
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  • 2
    Electronic Resource
    Electronic Resource
    Perfect and Imperfect Density Dependence in Population Dynamics (1958)
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1252-1252 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] If all causes of variation were removed, there would be a simple and exactly maintained relationship between the intensity of intraspecific competition and the population density. Let us relegate all sources of variation to a category for which we shall borrow the term environmental capacity. Then ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1821252a0
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  • 3
    Electronic Resource
    Electronic Resource
    Geochemical and Geological Evidence for the Origin of Darwin Glass (1962)
    [s.l.] : Nature Publishing Group
    Nature 196 (1962), S. 124-126 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE occurrence of a frothy siliceous glass, from the eastern slopes of Mt. Darwin, Western Tasmania, was brought to scientific attention in 1910 by M. Donoghue. It was first mistaken for slag from an abandoned copper smelter. In 1913, H. Conder, State mining engineer, informed the Geological Survey ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/196124a0
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  • 4
    Electronic Resource
    Electronic Resource
    Massive sulphides and plate tectonics (1974)
    [s.l.] : Nature Publishing Group
    Nature 249 (1974), S. 821-822 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The deposits included in the term 'massive sulphide' are stratiform and wholly or largely composed of sulphides of iron with varying proportions of the sulphides of copper, lead and zinc, and minor gold and silver. Stratiform, massive oxide deposits (largely magnetite and/or haematite) are related ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/249821a0
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  • 5
    Electronic Resource
    Electronic Resource
    Origin of Pillow Structure in Lavas (1966)
    [s.l.] : Nature Publishing Group
    Nature 211 (1966), S. 399-399 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I suggest that the two major factors in the formation of pillows are: (i) the surface tension of the molten magma; (ii) the density of the medium in which the pillows develop. When lava erupts into any medium, it will tend to reduce its surface area to a minimum, that is, form spheres. If the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/211399a0
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  • 6
    Electronic Resource
    Electronic Resource
    Mortality Required to Prevent Population Increase (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 848-849 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BIOLOGISTS have often calculated the vast numbers which would be reached in a relatively short period by the descendants of a single pair of insects or other fecund animals if all of them reproduced at the normal rate before dying. Such calculations are used to illustrate the high potential ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159848b0
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  • 7
    Electronic Resource
    Electronic Resource
    Integrated text on population biology (1977)
    [s.l.] : Nature Publishing Group
    Nature 266 (1977), S. 94-94 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Population Biology. By Thomas C. Emmel, Published by Pp.xii + 371. (Harper and Row: New York and London, 1976.) £11.95: $15.95. As the author remarks in his preface, "part of the problem of writing a book on population biology involves the host of inter-relationships among the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/266094b0
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