Table 1 Comparison of Rusinga Island forest reconstruction to modern forests.

From: Remnants of an ancient forest provide ecological context for Early Miocene fossil apes

Forest

Sampled area (ha)

Tree basal area (m2 ha−1)

Tree density (trees ha−1)

Primates

  

≥30 cm DBH

≥60 cm DBH

≥30 cm DBH

≥60 cm DBH

 

Yasuni, Ecuador

50

13.4

4.1

81

8

X

Pasoh, Malaysia

50

15.9

7.8

76

15

X

Korup, Cameroon

50

16.1

6.8

84

11

X

Luquillo, Puerto Rico

16

18.1

5.2

109

11

 

Mudumalai, India

50

18.8

5.8

82

19

X

Ituri mixed forest, Dem. Rep Congo

20

19.4

11.4

77

22

X

Barro Colorado Island, Panama

50

19.7

10.8

82

17

X

Early Miocene Rusinga Island (lower bound)

0.09

19.8

11.1

87

24

X

Huai Kha Khaeng, Thailand

50

20.7

12.1

102

13

X

Palanan, Philippines

16

26.0

15.6

110

28

X

Lambir, Malaysia

52

26.3

13.9

119

26

X

Ituri mbau forest, Dem. Rep. Congo

20

27.0

17.5

98

33

X

Sinharaja, Sri Lanka

25

27.1

10.7

143

23

X

Early Miocene Rusinga Island (mean)

0.09

39.6

22.2

173

48

X

Yosemite, USA

25.6

53.1

40.7

145

53

 
  1. DBH, diameter at breast height.
  2. Tree density and basal area of larger (≥30 cm) trees from tropical and temperate forests within the Smithsonian Center for Tropical Forest Science network18,21,42. Contemporary primate occupancy from field reports21.