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Biodiversity in Littorina species (Mollusca: Gastropoda): a physiological approach using heat-coma (2000)

Clarke, A. P. ; Mill, P. J. ; Grahame, J.

Springer

Marine biology 137 (2000), S. 559-565

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ISSN: 1432-1793

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract The upper critical thermal limits were measured as heat-coma temperatures in Littorina species as a tool for examining physiological diversity. Thermal tolerance was found to be stable within a population, but extensive variation occurred between populations and species. All species examined displayed heat-coma values of ∼30 °C and did not show a positive correlation with shore height. Eulittoral-fringe species tended to have higher coma temperatures than eulittoral species. Coma temperatures varied both seasonally and geographically. Lethal thermal limits were also investigated; these were ∼10 C° higher than coma temperatures.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s002270000368

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