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  • 1985-1989  (2)
  • 1975-1979
  • Copenhagen disease  (1)
  • Grasshopper ecology  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Environmental predictions and distributional limits of chromosomal taxa in the Australian grasshopperCaledia captiva (F.) (1988)
    Springer
    Oecologia 75 (1988), S. 483-493 
    Details
    ISSN: 1432-1939
    Keywords: Caledia captiva ; Climatic prediction ; Grasshopper ecology ; Ecological ordination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Correlations between environmental parameters and the distribution of four chromosomal taxa in the acridine grasshopperCaledia captiva (F.) have been analyzed. A bioclimate prediction system (BIOCLIM) was used as a model to determine their bioclimatic envelopes and to predict their probable geographic distributions, based on climatic similarities with actual distributions. New, and formerly unsuspected, distribution areas are predicted. Parapatric boundaries are defined that actually coincide with known limits. The general distribution of the four taxa is correlated with rainfall seasonality and a temperature gradient. Their distributional boundaries are mostly in accordance with extreme values in rainfall in an east-west direction and temperature in a north-south direction. A nonmetric multidimensional scaling analysis of one selected narrow parapatric boundary confirms the nature of the geographic correlation with several climatic extreme values. The climatic and vegetation analyses suggest that sharp parapatric distributions can be maintained by gradual environmental influences and that coincidence with abrupt ecotones is not necessary. At least one of the parapatric boundaries seems to be relatively recent in origin (2000–6000 years) and on the basis of the location of extreme climatic values as well as chromosomal and genetic markers it is expected to slowly move further south and east of its present location apparently following a climatically established boundary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00776409
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Progressive non-infectious anterior vertebral fusion (1986)
    Springer
    Skeletal radiology 15 (1986), S. 599-604 
    Details
    ISSN: 1432-2161
    Keywords: Progressive non-infectious anterior vertebral fusion ; Vertebral ankylosis ; Scheuermann disease ; thalidomide embryopathy ; Copenhagen disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four cases of progressive non-infectious anterior vertebral fusion are described. Three cases remain relatively asymptomatic, but one has developed spinal cord compression secondary to an acute angled kyphosis. The clinical, radiological, and pathological features are reviewed and some comparisons with the spinal changes in thalidomide embryopathy are made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00349851
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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