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An r-strategist in Antarctic pack ice
Bergmans, M.; Dahms, H.-U.; Schminke, H.K. (1991). An r-strategist in Antarctic pack ice. Oecologia 86: 305-309. https://dx.doi.org/10.1007/BF00317594
In: Oecologia. Springer: Heidelberg; Berlin. ISSN 0029-8549; e-ISSN 1432-1939, more
Peer reviewed article  
Available in  Authors 
Keywords
    Environmental effects > Temperature effects
    Ice > Sea ice
    Polar waters
    Population characteristics > Population structure
    Reproduction
    Reproductive cycle
    Copepoda [WoRMS]; Drescheriella glacialis Dahms & Dieckmann, 1987 [WoRMS]
    PS, Antarctica [Marine Regions]; PSW, Weddell Sea [Marine Regions]
    Marine/Coastal
Authors  Top 
  • Bergmans, M., more
  • Dahms, H.-U.
  • Schminke, H.K.
Abstract
    The Antarctic copepod Drescheriella glacialis, an inhabitant of sea ice, is the first polar invertebrate metazoan to have been cultured throughout its life cycle. We describe its demographic characteristics on the basis of a laboratory cohort study and correlative field data. When compared to its closest temperate zone relatives, D. glacialis shows temperate compensation of developmental and reproductive rates. A genuine r-strategist in every respect, it does not fit established trends for Antarctic invertebrates but appears well adapted to the peculiar spatio-temporal variability.
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