Abstract
Egg development of Dinocras cephalotes (Curtis) was studied in a population from the Jotunheimen Mountains of central southern Norway. At 16, 20 and 24 °C hatching success was >50%, while at 12 °C only a few eggs hatched. The number of degree days required for hatching was less, but the lower threshold temperature for development was higher than found in earlier studies. The mean length of first instar nymphs increased significantly (P<0.001) with increasing egg incubation temperature. Eggs probably hatch throughout the ice free period when temperatures exceed 10 °C and D. cephalotes probably has a 5–6 year life cycle including egg development.
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Sand, K., Brittain, J.E. (2001). Egg Development in Dinocras Cephalotes (Plecoptera, Perlidae) at its Altitudinal Limit in Norway. In: Domínguez, E. (eds) Trends in Research in Ephemeroptera and Plecoptera. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1257-8_24
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DOI: https://doi.org/10.1007/978-1-4615-1257-8_24
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