Ecological Archives E087-059-A1

Arpat Ozgul, Kenneth B. Armitage, Daniel T. Blumstein, and Madan K. Oli. 2006. Spatiotemporal variation in survival rates: implications for population dynamics of yellow-bellied marmots. Ecology 87:1027–1037.

Appendix A. Analysis of spatial and temporal variation in overall apparent annual survival rates for the yellow-bellied marmot using Cormack-Jolly-Seber models. Akaike’s Information Criterion corrected for small sample size (AICc), differences in AICc values (AICc), AICc weights and number of parameters are given for each model. Symbols are: = apparent annual survival rate, = annual recapture rate, t = time effect, s = site effect, s' = modified site effect, t*s = interactive effects of site and time, t+s = additive effects of site and time. A period (.) indicates constant value of the parameter. The most parsimonious models are highlighted in bold.

No.

Model

AICc

DAICc

AICc
Weights

Number of parameters

1

(.) (.)

2729.81

76.22

0

2

2

(.) (s)

2684.00

30.41

0

9

3

(.) (t)

2723.05

69.46

0

28

4

(s) (.)

2720.99

67.39

0

9

5

(s) (s)

2675.06

21.46

0

16

6

(s) (t)

2715.61

62.02

0

35

7

(t) (.)

2707.40

53.81

0

28

8

(t) (s)

2661.58

7.98

0.013

35

9

(t) (t)

2712.62

59.03

0

54

10

(t+s) (.)

2701.15

47.56

0

35

11

(t+s) (s)

2655.68

2.08

0.258

42

12

(t+s) (t)

2706.45

52.86

0

61

13

(t*s) (.)

2798.83

145.24

0

217

14

(t*s) (s)

2762.83

109.24

0

224

15

(t*s) (t)

2818.19

164.60

0

243

16

(t+s) (s')

2653.59

0.00

0.729

40

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