The bird communities of a natural secondary forest and a Lophostemon confertus plantation in Hong Kong, South China.

摘要

The avifauna of a 30-40-year-old secondary forest and a 25-30-year-old Lophostemon confertus plantation in the Tai Po Kau Nature Reserve, Hong Kong, were compared using the point count method over 1 year (March 1994-February 1995). Similar total numbers of bird species were recorded in the secondary forest (44) and the plantation (46) but many of those in the plantation were typical of non-forest habitats in Hong Kong and the number of forest-associated species was higher in the secondary forest. The mean total bird density in the secondary forest (44.5 ha-1) was much higher than in the plantation (12.4 h-1). The great tit Parus major, light-vented bulbul Pycnonotus chinensis and Japanese white-eye Zosterops japonica [Z. japonicus] were the 3 mostabundant species at both the sites but their mean annual densities were all much higher in the secondary forest. There were relatively more granivores and insectivores and fewer insectivore-frugivores in the plantation. Twelve species were confirmed breeding in the secondary forest but there were none in the plantation.