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Enumeration of a one hectare plot at 900 m a.s.l in Papua New Guinea revealed 693 individuals of 228 tree and liana species ≥ 10 cm DBH. A 0.1 hectare subplot contained 302 individuals of 106 species 2.5 ≥ DBH < 10 cm. Lauraceae, Moraceae, and Myristicaceae were the most important families in both size classes. This site is very diverse compared with other tropical forests, and like other species‐rich sites worldwide, it has high aseasonal rainfall and high rates of natural disturbance.

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During 1989-93, 170 species of birds were obnet capture rates. Comparisons among four other sites in served and 1787 individuals captured in mist nets at the southern Papua New Guinea reveal striking similarities Crater Mountain Biological Research Station, Chimbu among sites in number of species and trophic organisation. Province, Papua New Guinea. Populations of many species Range extensions, weights and natural history observations fluctuated on annual or supra-annual schedules; 46 species are reported for many species. Feeding observations of necwere considered transients. Areas of the forest where many tarivorous and frugivorous birds at over 50 species of plant understorey trees had been removed exhibited reduced mist are reported.

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