Table 2 Asymptotic richness for avian groups categorized by habitat specialization or threat across arabica and robusta stands.

From: Birds and beans: Comparing avian richness and endemism in arabica and robusta agroforests in India’s Western Ghats

Category

Observed

Chao

First-order jackknife

Arabica

Robusta

Arabica

Robusta

Arabica

Robusta

Forest-dependent

74

66

88 (10.3)

66.3 (0.8)

86.9 (3.9)

68 (1.4)

Endemic

14

11

20.2 (7.5)

11 (0)

19 (2.2)

11 (0)

IUCN Red-Listed

3

3

3 (0)

3 (0)

3 (0)

3 (0)

Frugivore

22

22

28.2 (7.5)

22.7 (1.3)

27 (2.2)

24 (1.4)

Insectivore

51

48

68.9 (23.5)

50 (3.7)

57 (2.4)

50 (1.4)

Omnivore

22

20

30.9 (10.1)

22.2 (3.4)

28 (2.4)

23 (1.7)

  1. Observed: Observed richness in each habitat type across all point count stations. Chao (standard error) corresponds to the Chao 2 estimator of asymptotic richness. The first-order jackknife (standard error) is another asymptotic richness estimator.