TROPICAL GEOGRAPHY ›› 1995, Vol. 15 ›› Issue (4): 362-368.

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A PRELIMINARY STUDY OF ENDEMISM OF SEED PLANTS ON THE CANARY ISLANDS, SPAIN

Zhou Yue1, D. Taylor2   

  1. 1. Yunnan Institute of Geography, Kunming 650223;
    2. School of Geography and Earth Resources, Hull University, UK
  • Received:1995-12-01 Online:1995-10-30 Published:1995-10-30

Abstract:

Approximately 18 genera and 500 species (25% of the total) are thougth to be endemic to the Canary Islands.Many elements came from ancient Mediterranean Region due largely to the Ice Period and deought in Sahara area during late Tertiary.The existing Laurel Forest possesses higher concentration of endemic specica.The flora of the forest was part of the sub-tropic flora around tethys sea over middle and late tertiary,and its history could probably date back to early Tertian.Three soups of the endemic flora can be identified,which have formed during the long history.Vicariance and adaptive radiation have resulted in the evolution of the ancient endemic group.

Key words: Canary Islands, Seed plant endemism, Origin and evolution