Understanding stable bi-female grouping in gibbons: feeding competition and reproductive success

Table 2 Distribution pattern and characteristics of seven important food species in cao vit gibbon habitat, calculated from 73 20 × 20 m plots

Latin name	Contribution to the diet	Food part eaten	N of trees	N of plots	Density (trees/ha)	Tree height ^b	DBH ^c	CD index ^d
Broussonetia papyrifera	17.1	Bud, Fruit, Leaf	26	7	8.9	9.1 ± 1.5	14.8 ± 3.4	10.3**
Ficus glaberrima	13.0	Fruit, Bud, Leaf	61	26	20.9	11.7 ± 3.9**	26.3 ± 15.9**	3.1**
Ficus hookeriana	6.6	Fruit, Leaf, Bud	6	4	2.1	12.3 ± 5.1	33.7 ± 22.7**	1.6
Tetrastigma pubinerve ^a	6.3	Fruit, Bud, Leaf	24	15	13.6			1.5
Burretiodendron hsienmu	5.5	Fruit, Leaf, Bud, Flower	34	16	11.6	9.6 ± 2.1*	14.1 ± 3.4*	2.9
Choerospondias axillaris	5.2	Fruit, Leaf	6	4	2.1	10.8 ± 2.6	24.9 ± 23.8	1.6
Spondias lakonensis	4.7	Fruit, Leaf	11	9	3.8	14.7 ± 7.5**	31.7 ± 23.8**	1.2
All other trees			1072	73	367.1	8.9 ± 2.7	16.7 ± 7.2

^aHeight and DBH are not available for Tetrastigma pubinerve, which is a liana species.
^band ^cFor statistical analysis height and DBH were compared to all other trees (* P < 0.05; ** P < 0.01).
^dIf the distribution pattern of the species significantly deviates from Poisson distribution (** P < 0.01).

ISSN: 1742-9994