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Table 3 Gray Catbird (Dumetella carolinesis) apparent annual survivorship model comparison

From: Migration ecology of western gray catbirds

Model

Parameters

AICc

ΔAIC

Weight

Deviance

Montana (n = 741)

 ϕ (sex) p (site)

5

496.4

0.00

0.93

159.9

 ϕ (sex) p (.)

4

503.0

6.56

0.04

130.5

 ϕ (site) p (sex)

5

503.7

7.27

0.02

167.2

 ϕ (sex) p (sex)

6

506.8

10.36

0.01

130.2

 ϕ (.) p (sex)

4

511.3

14.91

0.00

138.9

 ϕ (TSM) p (sex)

5

513.3

16.94

0.00

138.9

 ϕ (TSM) p (.)

3

552.4

56.00

0.00

65.2

 ϕ (site) p (.)

3

596.4

100.00

0.00

124.3

 ϕ (.) p (site)

3

596.5

100.14

0.00

124.4

 ϕ (site) p (site)

4

598.2

101.76

0.00

124.0

 ϕ (TSM) p (site)

4

598.6

102.17

0.00

124.4

 ϕ (.) p (.)

2

600.7

104.20

0.00

115.4

British Columbia (n = 537)

 ϕ (sex) p (sex)

6

709.2

0.00

0.98

119.2

 ϕ (sex) p (.)

4

718.1

8.91

0.01

132.1

 ϕ (sex) p (site)

5

719.4

10.16

0.01

164.3

 ϕ (site) p (sex)

5

724.0

14.82

0.00

169.0

 ϕ (.) p (sex)

4

724.2

15.00

0.00

138.2

 ϕ (TSM) p (sex)

5

726.1

16.91

0.00

138.1

 ϕ (TSM) p (.)

3

813.4

104.24

0.00

51.1

 ϕ (TSM) p (site)

4

815.4

106.22

0.00

76.4

 ϕ (.) p (.)

2

836.7

127.48

0.00

76.4

 ϕ (site) p (.)

3

838.5

129.34

0.00

101.6

 ϕ (.) p (site)

3

838.6

129.45

0.00

101.7

 ϕ (site) p (site)

4

839.7

130.48

0.00

100.7

  1. Models for the apparent annual survivorship of Gray Catbirds in the South Okanagan Valley, British Columbia, Canada, and the Bitterroot River Valley, Montana, USA. Cormack-Jolly-Seber models were used, which include annual survivorship (Ï•) and detection probability (p). TSM is a time-since-marking approach whereby the first encounter is separated from separate encounters to factor in young and transient individuals. Intercept only models are designated by (.)