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Warnstorfia exannulata, an aquatic moss in the Arctic: seasonal growth responses

Author

Listed:
  • Cai-Qing Guo
  • Ryszard Ochyra
  • Peng-Cheng Wu
  • Rodney Seppelt
  • Yi-Feng Yao
  • Lin-Gen Bian
  • Su-Ping Li
  • Cheng-Sen Li

Abstract

The moss, Warnstorfia exannulata (Schimp.) Loeske, was first reported forming a carpet beside a water pool in Ny-Ålesund (78°56′N), Svalbard in 1959. Fifty years later, in 2008, it was found growing as an aquatic in a pool. The moss is sensitive to seasonal changes and exhibits a pattern of seasonal growth: summer stems with densely arranged leaves and lateral branches, and winter growth with short-leaved stems and no lateral branch. The mean daily increase in stem length is 0.68 mm in summer and 0.07 mm in winter. The longest specimens were up to 8 years old. The growth of the moss reflects closely seasonal temperature and growth conditions. World distribution is discussed and global distribution mapped. Copyright Springer Science+Business Media Dordrecht 2013

Suggested Citation

  • Cai-Qing Guo & Ryszard Ochyra & Peng-Cheng Wu & Rodney Seppelt & Yi-Feng Yao & Lin-Gen Bian & Su-Ping Li & Cheng-Sen Li, 2013. "Warnstorfia exannulata, an aquatic moss in the Arctic: seasonal growth responses," Climatic Change, Springer, vol. 119(2), pages 407-419, July.
    • Handle: RePEc:spr:climat:v:119:y:2013:i:2:p:407-419
    DOI: 10.1007/s10584-013-0724-5
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