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  • 1985-1989  (3)
  • 1
    Monograph available for loan
    Monograph available for loan
    Chicago : Univ. of Chicago Press
    Call number: PIK D 023-01-0085
    Type of Medium: Monograph available for loan
    Pages: XIII, 180 S
    Edition: Reprint
    ISBN: 0415008204
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Marine mammal science 2 (1986), S. 0 
    ISSN: 1748-7692
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The three living species of Trichechus are clearly defined and well exemplify the degree of variability and taxonomic value of morphological characters in a well-understood mammalian genus. Statistical analysis of the largest sample of manatee skulls yet studied has allowed us to identify small suites of characters that effectively distinguish these species. The two subspecies of T. manatus proposed by Hatt (1934) can likewise be distinguished, and their use as taxonomic categories seems justified. This suggests that the cool winters of the northern Gulf Coast, on the one hand, and the deep water and strong currents of the Straits of Florida, on the other, are effective barriers to gene flow between Florida and Antillean manatees. Alleged taxonomic distinctions within T. senegalensis, however, have no demonstrated basis. No significant sexual dimorphism was detected in skulls of any of the species. Many interspecific differences can be correlated with feeding ecology, but others remain unexplained. Features of tooth crown morphology are among the most constant characters examined, but some osteological characters are equally good. T. manatas and T. senegalensis (which are phenetically the most similar) also seem to share a more recent common ancestor than either does with T. inunguis. However, the three species probably separated from each other at nearly the same time. T. inunguis has since become the most derived species, while T. senegalensis has changed the least.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Economic affairs 6 (1986), S. 0 
    ISSN: 1468-0270
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The power of governments to debauch currencies for political ends has long been condemned by market economists. Monetarists have argued that the government should restrain its production of money; Professor Hayek contended in 1976 that monetary continence would succumb to political pressures and argued for national currencies to be replaced by competing private monies. Here he refines this thinking and suggests that a private ‘store of value’—the standard—would be more likely to overcome the political obstruction to the wholesale denationalisation of currencies, but would be immune from use as a political tool by the state.
    Type of Medium: Electronic Resource
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