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  • 1960-1964  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Organic Chlorine Insecticide Residues in Wild Birds (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 1072-1073 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DECLINES in reproductive success and population numbers of certain predatory birds have coincided in space and time with the use of organic chlorine insecticides1,2. Accordingly, a nation-wide survey of residues of these substances in wild birds was undertaken. 85 bird corpses and 72 eggs were ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2011072a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Œstrous and Ovarian Response of the Ewe to a Horse Anterior Pituitary Extract (1962)
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 1283-1284 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In recent work2, carried out in the autumns of 1960 and 1961, in which large numbers of fertilized eggs were required, merino ewes were treated with a horse anterior pituitary extract prepared from frozen anterior pituitaries. The frozen pituitaries were finely ground and then homogenized in a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1941283a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Population Density and Atypical Behaviour in Male Odonata (1962)
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 503-504 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (1) The upper limit of population density (the highest steady density) of males by water is determined by the behaviour of the insects themselves. The number of insects per unit area of water edge differs from species to species, but each has a characteristic highest steady density. (2) Male ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/194503a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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