Biodiv Sci ›› 2014, Vol. 22 ›› Issue (5): 583-588.DOI: 10.3724/SP.J.1003.2014.14056

• Orginal Article • Previous Articles     Next Articles

Bryophyte composition and diversity within anthropogenic habitats in a residential area of Chongqing municipality city

Chunyan Pi, Yan Liu*()   

  1. College of Life Sciences, Chongqing Normal University, Chongqing 401331
  • Received:2014-03-19 Accepted:2014-08-26 Online:2014-09-20 Published:2014-10-09
  • Contact: Liu Yan

Abstract:

Little is known about bryophyte composition and diversity in habitats created by residential areas. Ours is the first study aiming at gathering baseline information on the bryophyte flora of Chongqing municipality city and providing a scientific basis for evaluation of environmental quality and bryophyte adaptability in residential environments. Based on extensive field work, 84 bryophyte species in 33 genera and 19 families were reported from 23 residential areas in nine districts of Chongqing. Of those, 39.28% of the species belonged to Pottiaceae and Bryaceae, and most of them grew on soil. The most common species were Fissidens bryoides, Haplocladium microphyllum, Hydrogonium majusculum, Taxiphyllum taxirameum and Aneura pinguis. The number of bryophyte species in these 23 residential areas varied from 5 to 25. The similarity of bryophyte species composition between different residential areas was very low, suggesting the presence of distinct habitats and a high diversity among these areas. Turfs were the main life form of bryophytes that we observed. Canonical Correspondence Analysis revealed that the number of residents was the most influential factor in terms of the bryophyte species composition and diversity, followed by the area of green space. Our results suggested that, within cities, residential areas contain important environments for bryophytes. Observed differences in bryophyte composition among residential areas may be attributed to spatial background, urbanization, microhabitat and human disturbance.

Key words: plant biodiversity, city, life form, Canonical Correspondence Analysis