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  • Electronic Resource  (2)
  • Antarctic arthropods  (1)
  • Carabid  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Low temperature effects on micro-arthropods
    Amsterdam : Elsevier
    Journal of Thermal Biology 6 (1981), S. 215-218 
    Details
    ISSN: 0306-4565
    Keywords: Antarctic arthropods ; cold hardiness ; cryoprotection ; supercooling
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0306-4565(81)90009-7
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The invasion of the carnivorous carabid beetle Trechisibus antarcticus on South Georgia (sub-Antarctic) and its effect on the endemic herbivorous beetle Hydromedion spasutum (1995)
    Springer
    Oecologia 103 (1995), S. 34-42 
    Details
    ISSN: 1432-1939
    Keywords: Colonization ; Carabid ; Predation ; Life history ; Sub-Antarctic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Recently two species of carabid beetle were accidentally introduced onto the sub-Antarctic island of South Georgia. Both species are carnivorous and flightless. One of the species, Trechisibus antarcticus, is locally very abundant and in the process of invading the coastal lowland area, where the endemic herbivorous beetle Hydromedion sparsutum (Perimylopidae) is common. Field samples showed the abundance of the endemic species to be much lower, and its adult body size to be larger, in carabid-infested locations than in carabid-free locations. The sample data allowed us to estimate the growth rate of the H. sparsutum larvae and to reconstruct the most likely life-cycle of both species. A laboratory experiment showed a high mortality for the first three (out of six) larval instars of H. sparsutum in groups which had been subjected to predation by T. antarcticus. The duration of the period during which the larvae are vulnerable to predation was shown in a growth experiment to depend on food type. Quantitative and qualitative aspects of the interaction between the introduced predator and the endemic prey, and conditions which allowed the former to invade are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00328422
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    Paper (German National Licenses)
    Fulltext
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