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Chinese Journal of Applied Ecology ›› 2005, Vol. 16 ›› Issue (3): 403-407.

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Niches of several mangrove species in Dongzhai Harbor of Hainan Island.

LIAO Baowen1, LI Mei1, ZHENG Songfa1, CHEN Yujun1, ZHONG Cairong2, HUANG Zhongqi 2   

  1. 1. Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China;
    2. Hainan Dongzhai Harbor National Nature Reserve, Hainan 571129, China
  • Received:2003-12-01 Revised:2004-03-22 Online:2005-03-15 Published:2005-03-15

Abstract: Employing the succession series of Kandelia candel-Aegiceras corniculatum community in non indigenous species Sonneratia apetala extension area as resource axes,and with three commonly used calculation formulae,this paper determined the niche breadth and overlap of mangrove populations.The results showed that the niche breadth decreased in order of Aegiceras corniculatum (3.8357) > Kandelia candel (3.3421) > Bruguiera gymnorrhiza (3.3180) > Avicennia marina (3.0975) > Sonneratia apetala (2 9137) >Sonneratia caseolaris (205724) > Ceriops tagal (1.8523) > Rhizophora stylosa (1.6897) > Bruguiera sexangula (1.0000),which could indicate the ecological adaptability and distribution range of the species.The niche overlap among K.candel,A.corniculatum,B.gymnorrhiza and A.marina was the largest,suggesting the intense competition among them,followed by the niche overlap of S.apetala with S.caseolaris,A.corniculatum,K.candeli and A.marina,S.apetala with R.stylosa and B.sexangula,S.apetala with C.tagal,and S.apetala with B.sexangula.

Key words: Mangrove, Sonneratia apetala extension area, Tree species, Niche breadth, Niche overlap

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