TABLE 1. Open in new tab Model results,...

Model

ΔAIC ^a

w_i

Survey Window + Temperature + Wind + Hours After Midnight

0.00

0.220

Survey Window + Temperature + Wind + Hours After Midnight + Noise

0.21

0.200

Survey Window + Temperature + Wind + Hours After Midnight + Sky Condition

1.92

0.086

Survey Window + Temperature + Wind + Hours After Midnight + Noise + Sky Condition

2.16

0.076

Survey Window + Wind + Hours After Midnight + Noise + Sky Condition

2.20

0.075

Survey Window

2.22

0.074

Survey Window + Wind

2.38

0.068

Survey Window + Noise

2.51

0.064

Survey Window + Wind + Noise

2.63

0.060

Survey Window + Temperature

4.10

0.029

Survey Window + Temperature + Hours After Midnight + Noise + Sky Condition

4.64

0.022

Survey Window + Temperature + Sky Condition

6.07

0.011

Survey Window + Temperature + Wind + Noise + Sky Condition

6.49

0.009

Temperature + Wind + Hours After Midnight + Noise + Sky Condition

10.86

<0.001

Temperature

19.89

<0.001

Hours After Midnight

27.98

<0.001

Noise

29.54

<0.001

Sky Condition

29.92

<0.001

Wind

30.17

<0.001

Wind + Noise

30.23

<0.001

Null ^b

144.41

<0.001

TABLE 1.

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Model results, including ∆AIC, number of parameters (k), and model weight (w_i) from models of Saltmarsh Sparrow detection during point counts at survey locations from Maine to Maryland, USA, April–July, 2012.

Model	k	ΔAIC ^a	w_i
Survey Window + Temperature + Wind + Hours After Midnight	10	0.00	0.220
Survey Window + Temperature + Wind + Hours After Midnight + Noise	11	0.21	0.200
Survey Window + Temperature + Wind + Hours After Midnight + Sky Condition	11	1.92	0.086
Survey Window + Temperature + Wind + Hours After Midnight + Noise + Sky Condition	12	2.16	0.076
Survey Window + Wind + Hours After Midnight + Noise + Sky Condition	11	2.20	0.075
Survey Window	7	2.22	0.074
Survey Window + Wind	8	2.38	0.068
Survey Window + Noise	8	2.51	0.064
Survey Window + Wind + Noise	9	2.63	0.060
Survey Window + Temperature	8	4.10	0.029
Survey Window + Temperature + Hours After Midnight + Noise + Sky Condition	11	4.64	0.022
Survey Window + Temperature + Sky Condition	9	6.07	0.011
Survey Window + Temperature + Wind + Noise + Sky Condition	11	6.49	0.009
Temperature + Wind + Hours After Midnight + Noise + Sky Condition	11	10.86	<0.001
Temperature	7	19.89	<0.001
Hours After Midnight	7	27.98	<0.001
Noise	7	29.54	<0.001
Sky Condition	7	29.92	<0.001
Wind	7	30.17	<0.001
Wind + Noise	8	30.23	<0.001
Null ^b	6	144.41	<0.001

Model	k	ΔAIC ^a	w_i
Survey Window + Temperature + Wind + Hours After Midnight	10	0.00	0.220
Survey Window + Temperature + Wind + Hours After Midnight + Noise	11	0.21	0.200
Survey Window + Temperature + Wind + Hours After Midnight + Sky Condition	11	1.92	0.086
Survey Window + Temperature + Wind + Hours After Midnight + Noise + Sky Condition	12	2.16	0.076
Survey Window + Wind + Hours After Midnight + Noise + Sky Condition	11	2.20	0.075
Survey Window	7	2.22	0.074
Survey Window + Wind	8	2.38	0.068
Survey Window + Noise	8	2.51	0.064
Survey Window + Wind + Noise	9	2.63	0.060
Survey Window + Temperature	8	4.10	0.029
Survey Window + Temperature + Hours After Midnight + Noise + Sky Condition	11	4.64	0.022
Survey Window + Temperature + Sky Condition	9	6.07	0.011
Survey Window + Temperature + Wind + Noise + Sky Condition	11	6.49	0.009
Temperature + Wind + Hours After Midnight + Noise + Sky Condition	11	10.86	<0.001
Temperature	7	19.89	<0.001
Hours After Midnight	7	27.98	<0.001
Noise	7	29.54	<0.001
Sky Condition	7	29.92	<0.001
Wind	7	30.17	<0.001
Wind + Noise	8	30.23	<0.001
Null ^b	6	144.41	<0.001

^a Lowest AIC score = 2,735.86. Log-likelihood of the top-ranked model is –1,357.928.

^b Null model includes latitude (quadratic) and percent of high marsh habitat as abundance covariates.

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