. The Ecology of arboreal folivores : a symposium held at the Conservation and Research Center, National Zoological Park, Smithsonian Institution, May 29-31, 1975 . Figure 3. Vertical structure of the rain forest at Ipassa, near Makokou (Gabon), along a transect of 90 by 5 m. Some trunks outside the transect area but supporting a tree crown included in the section are shown in dotted lines. The horizontal structure is shown by the projection of the canopies and trunks in a larger sample area (90 by 10 m) including the strip of 5 m located behind that of the profile. Names of tree species: Afro
. The Ecology of arboreal folivores : a symposium held at the Conservation and Research Center, National Zoological Park, Smithsonian Institution, May 29-31, 1975 . Figure 3. Vertical structure of the rain forest at Ipassa, near Makokou (Gabon), along a transect of 90 by 5 m. Some trunks outside the transect area but supporting a tree crown included in the section are shown in dotted lines. The horizontal structure is shown by the projection of the canopies and trunks in a larger sample area (90 by 10 m) including the strip of 5 m located behind that of the profile. Names of tree species: Afrostyrax lepidophyllus, Alstonia congensis, Anonidium mannii, Beilschmiedia sp. (= 1449), Calpocalyx dinklagei, Chytranthus talbotii, Cola rostrata, Coula edulis, Diospyros hoyleana, Distemonanthus benthamianus, Eriocoelum macrocarpum, Fagara macrophylla, Ficus sp. ( = 1744), Heisteria parvifolia, Maesobotrya sp. ( =2111), Markhamia sessilis, Milletia mannii, Panda oleosa, Pentaclethra eetveldeana, Peter- sianthus macrocarpus, Piptadeniastrum africanum, Plagiostyles africana, Polyalthia suaveolens, Santiria sp. I, Santiria sp. II, Scorodophloeus zenkeri, Sorindeia nitida, Trichoscypha sp. ( = 1447). Only generic names are written on the projection; canopies of lianas are represented by hatched areas on the profile. Forest Structure The study area is located in ecological quadrats (100 by 100 m) at Ipassa. No attempt was made to analyze either the riparian forest or the periodically flooded forest. Vertical structure A vertical profile along a 90 m transect, 5 m wide, in the Ipassa forest was constructed. Some trunks outside the transect area but supporting a tree crown included in the section are shown in dotted lines in Figure 3. We measured the height of trees, lianas, and limbs by using long poles placed on tree trunks. Some trees were climbed, and the main forks and parts of the canopy were accurately measured (optical instruments were useless in this type of forest). Conside
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Keywords: ., bookcentury1900, bookcolle, booksubjectleaves, booksubjectmammals
