Table S 1 Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
1
Annual temperature
Average annual temperature (°C)
2
Summer temperature
3
June temperature
4
July temperature
5
August temperature
6
DOY maximum snow
depth
Maximum snow depth
7
8
Abiotic
9
DOY with 50% snow
cover in plant plots
Annual precipitation
10
Summer precipitation
11
June Precipitation
NON
P-Value
R-Squared
Split
-9.03
0.76
-0.08
0.11
0.02
0.37
2001.50
Average temperature (°C) in months of
June, July and August
4.55
0.93
0.20
0.14
0.01
0.43
2002.50
Accumulated daily average positive
degrees (°C) in June
Accumulated daily average positive
degrees (°C) in July
Accumulated daily average positive
degrees (°C) in August
Julian day of year with a maximum
snow depth
Maximum winter snow depth (m)
73.87
28.22
0.38
2.60
0.13
0.17
2001.50
192.80
43.65
0.23
5.94
0.02
0.37
2002.50
159.86
32.66
0.20
3.47
0.07
0.23
2000.50
96.13
30.04
0.31
-0.59
0.76
0.01
2004.50
0.80
0.33
0.41
-0.02
0.43
0.05
2002.50
Julian day of year with 50% snow cover
in plant plots
Precipitation (mm) fallen within the
hydrological year
Total precipitation (mm) in the months
of June, July and August
160.54
7.77
0.05
-0.98
0.03
0.32
2002.50
213.93
46.82
0.22
-4.78
0.13
0.18
2001.50
14.84
1.84
0.12
0.13
0.24
0.11
2002.50
Total precipitation (mm) in June
7.67
7.71
1.01
-0.38
0.43
0.05
2001.50
Table S 2 (Continued) Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
P-Value
12
Plant
Cassiope flowers
Average number of flowers counted in
each specie specific plot from total
counts
PER
R-Squared
Split
301.54
200.06
0.66
-4.11
0.72
0.01
2005.50
59.90
33.46
0.56
-4.33
0.01
0.38
2004.50
13
Dryas flowers
14
Papaver flowers
2.19
0.68
0.31
-0.10
0.00
0.46
2005.50
15
Salix flowers
16.66
7.91
0.47
-0.31
0.50
0.03
2005.50
16
Saxifraga flowers
55.62
31.82
0.57
-3.92
0.03
0.30
2004.50
17
Silene flowers
165.12
53.43
0.32
0.86
0.80
0.01
2000.50
18
Cassiope peak NDVI
0.38
0.02
0.05
0.00
0.04
0.41
2005.50
19
Dryas peak NDVI
0.42
0.02
0.05
0.00
0.02
0.46
2004.50
20
Papaver peak NDVI
0.43
0.01
0.02
0.00
0.42
0.06
2004.50
21
Salix peak NDVI
0.48
0.03
0.06
-0.01
0.00
0.65
2003.50
22
Saxifraga peak NDVI
0.30
0.02
0.07
0.00
0.00
0.62
2003.50
23
Silene peak NDVI
0.32
0.02
0.06
0.00
0.00
0.59
2004.50
24
188.07
8.28
0.04
-0.88
0.07
0.23
2001.50
186.62
6.83
0.04
-0.98
0.01
0.41
2002.50
197.80
8.89
0.04
-1.04
0.05
0.27
2000.50
174.64
5.88
0.03
0.09
0.80
0.01
2005.50
157.24
4.91
0.03
-0.18
0.56
0.03
2003.50
184.09
4.30
0.02
-0.53
0.03
0.30
2003.50
30
Cassiope DOY 50% flower
emergence
Dryas DOY 50% flower
emergence
Papaver DOY 50% flower
emergence
Salix DOY 50% flower
emergence
Saxifraga DOY 50%
flower emergence
Silene DOY 50% flower
emergence
Cassiope DOY peak NDVI
215.84
10.14
0.05
2.03
0.01
0.57
2005.50
31
Dryas DOY peak NDVI
210.14
7.98
0.04
0.71
0.31
0.10
2005.50
32
Papaver DOY peak NDVI
215.50
11.38
0.05
1.67
0.08
0.28
2004.50
33
Salix DOY peak NDVI
207.04
5.89
0.03
1.28
0.02
0.56
34
Saxifraga DOY peak
NDVI
Silene DOY peak NDVI
211.42
16.87
0.08
2.12
0.14
0.21
2005.50
211.67
14.40
0.07
2.09
0.08
0.27
2004.50
25
26
27
28
29
35
Maximum normalised difference
vegetation index (NDVI) measured in
plant plots, measured by hand held crops
circler.
Julian day of year where 50 % of flowers
have opened
Julian day of year where the peak
normalised difference vegetation index
(NDVI) were measured
PHE
Table S 3 (Continued) Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
P-Value
36
Arthropod
Acarina in pitt fall
Total number caught in pitt fall taps pr
trap day
PER
R-Squared
Split
4.03
3.15
0.78
-0.44
0.03
0.35
2004.50
1.77
0.82
0.46
-0.15
0.00
0.61
2000.50
37
Aranea in pitt fall
38
Chironomidae in pitt fall
1.34
0.68
0.51
-0.08
0.07
0.25
2000.50
39
Heteroptera in pitt fall
0.29
0.19
0.66
0.01
0.33
0.08
2002.50
40
Lepidoptera in pitt fall
0.18
0.19
1.06
-0.02
0.09
0.22
2000.50
41
Muscidae in pitt fall
2.35
1.19
0.51
-0.26
0.00
0.80
2000.50
9.96
5.11
0.51
-0.94
0.00
0.59
2004.50
1.59
1.42
0.89
-0.14
0.14
0.17
2004.50
0.08
0.06
0.75
0.01
0.02
0.37
2004.50
42
Arthropod in pitt fall
43
Acarina in window trap
44
Aranea in window trap
45
43.53
16.50
0.38
2.33
0.03
0.35
2004.50
0.02
0.03
1.50
0.00
0.65
0.02
2003.50
0.05
0.03
0.60
0.01
0.01
0.40
2003.50
48
Chironomidae in window
trap
Heteroptera in window
trap
Lepidoptera in window
trap
Muscidae in window trap
4.93
2.30
0.47
-0.30
0.04
0.30
2004.50
49
Arthropod in window trap
50.21
14.54
0.29
1.90
0.04
0.30
2004.50
46
47
Total number caught in window taps pr
trap day
Table S 4 (Continued) Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
P-Value
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Acarina emergence in pit
fall
Aranea emergence in pit
fall
Chironomidae emergence
in pit fall
Heteroptera emergence in
pit fall
Lepidoptera emergence in
pit fall
Muscidae emergence in pit
fall
Arthropod emergence in
pit fall
Acarina emergence in
window trap
Aranea emergence in
window trap
Chironomidae emergence
in window trap
Heteroptera emergence in
window trap
Lepidoptera emergence in
window trap
Muscidae emergence in
window trap
Arthropod emergence in
window trap
Julian day of year for 50 % emergence in
pitt fall traps
Julian day of year for 50 % emergence in
window traps
PHE
R-Squared
Split
195.36
12.18
0.06
-1.91
0.01
0.43
2003.50
197.50
6.93
0.04
0.29
0.54
0.03
2004.50
182.93
9.49
0.05
-1.46
0.01
0.42
2001.50
205.79
8.94
0.04
-0.93
0.12
0.19
2002.50
210.14
9.68
0.05
-1.20
0.06
0.27
2002.50
194.89
10.40
0.05
-1.23
0.07
0.24
2000.50
197.77
7.03
0.04
-1.07
0.01
0.41
2001.50
199.43
17.68
0.09
-0.93
0.45
0.05
2000.50
210.21
13.02
0.06
-0.17
0.85
0.00
2004.50
174.57
5.49
0.03
-0.53
0.16
0.16
2003.50
205.55
22.92
0.11
1.37
0.55
0.05
2003.50
208.89
9.95
0.05
-1.08
0.10
0.21
2001.50
192.86
7.01
0.04
-1.19
0.00
0.51
2000.50
198.50
6.96
0.04
-0.56
0.24
0.11
2003.50
Table S 5 (Continued) Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
P-Value
64
Wader
65
66
67
68
69
70
71
72
73
Herbivore
Ruddy Turnstone nest
success
Sanderling nest success
Dunling nest success
Ruddy Turnstone
territories
Sanderling territories
Dunling territories
Ruddy Turnstone DOY
first egg
Sanderling DOY first egg
Dunling DOY first egg
Muskox calves
Mean nest success (%) according to the
modified Mayfield method
PER
Estimated number of territories in the
15.8 km2 census area
Median Julian day of year for first egg
estimated from incomplete clutches, egg
floating
and hatching dates, as well as weights
and observed sizes of chicks.
Sex and age distribution of musk oxen pr
weekly counts, within the 47 km2 census
area from July – August
PHE
NON
R-Squared
Split
42.86
24.64
0.57
-0.94
0.56
0.03
2000.50
36.64
58.17
42.97
30.35
20.74
9.98
0.83
0.36
0.23
-5.21
-0.61
-0.29
0.00
0.71
0.64
0.63
0.01
0.02
2005.00
2004.50
2003.50
54.93
79.44
164.56
8.52
16.31
6.10
0.16
0.21
0.04
1.10
3.02
-0.35
0.02
0.00
0.31
0.34
0.69
0.07
2005.50
2000.50
2001.50
168.40
166.62
5.04
5.23
0.03
0.03
-0.23
-0.04
0.46
0.88
0.04
0.00
2001.50
2001.50
10.38
7.41
0.71
-67.19
0.93
0.00
2003.50
7.19
6.47
0.90
135.90
0.87
0.00
2004.50
28.47
12.22
0.43
-1698.6
0.24
0.10
2004.50
74
Muskox immature
75
Muskox adult female
76
Muskox adult male
29.90
12.91
0.43
-4149.5
0.00
0.55
2005.50
77
Muskox Totals
Lemming nests
33.38
104.10
0.44
0.66
-5779.4
-10.09
0.14
0.11
0.16
0.19
2004.50
78
75.94
157.60
Total number of lemming nests recorded
within the 1.06 km2 census area
2002.50
Table S 6 (Continued) Summary of results from analyses of terrestrial, with all variables used and coefficients from linear regression and tree regression.
No.
Trophic
Variable
Variable description
Type Mean
Sd
NormVar
Coef
P-Value
79
Predator
Fox pups pr. breeding den
80
Long-tailed Skua clutches
81
Long-tailed Skua fledged
82
Long-tailed Skua hatched
83
Long-tailed Skua nest
success
84
Long-tailed Skua first egg
Number of arctic fox pups counted pr
breeding den
Number of Long-tailed Skua clutches
Split
NON
3.27
2.62
0.80
0.20
0.17
0.13
2005.50
PER
10.73
7.31
0.68
-0.75
0.09
0.21
2004.50
3.33
5.55
1.67
-0.12
0.73
0.01
2004.50
9.40
10.60
1.13
-0.66
0.31
0.08
2004.50
45.03
31.10
0.69
-1.19
0.59
0.03
2005.50
164.79
4.49
0.03
0.36
0.24
0.11
2005.50
Estimated number of Long-tailed Skua
chicks fledged
Number of Long-tailed Skua eggs
hatched
Mean nest success (%) according to the
modified Mayfield method
Julian day of year for first egg of Longtailed Skua
R-Squared
PHE
Table S 7 (Continued) Summary of results from analyses of lakes, with all variables used and coefficients from linear regression and tree regression.
No
Trophic
Variable
Variable description
Mean
Sd
NormVar Coefficient P-Value
R-Squared
Split
Langemandssø
1
Abiotic
DOY 50% Ice cover
Julian day of year with 50% ice
cover
183.38
11.18
0.06
-2.19
0.00
0.58
2002.5
2
Abiotic
Total nitrogen
Average nitrogen load during July
and August (µg/l)
224.62
86.31
0.38
-0.85
0.90
0.00
2005.5
3
Abiotic
pH
Average pH value during July and
August
6.18
0.43
0.07
-0.01
0.71
0.01
2001.5
4
Abiotic
Total phosphor
Average phosphor content during
July and August (µg/l)
9.79
3.62
0.37
-0.13
0.62
0.02
2005.5
5
Abiotic
Average temperature
Average temperature during July
and August (ºC)
8.67
1.89
0.22
0.27
0.02
0.36
2002.5
6
Phytoplankton
chlorophyll
Average chlorophyll content during
July and August (µg/l)
15.25
27.27
1.79
3.15
0.09
0.26
2004.0
7
Phytoplankton
Chrysophyceae
Concentration (mm3/l)
300.00
161.47
0.54
17.47
0.12
0.23
2002.5
8
Phytoplankton
Diatomophyceae
Concentration (mm3/l)
1.08
2.61
2.42
0.01
0.98
0.00
2005.5
9
Phytoplankton
Dinophyceae
Concentration (mm3/l)
140.25
94.01
0.67
-11.29
0.08
0.28
2002.5
10
Phytoplankton
Total Phytoplankton
Concentration (mm3/l)
456.58
128.68
0.28
9.34
0.31
0.10
2005.5
11
Zooplankton
Cladocera
Abundance (no/L)
0.10
0.13
1.30
-0.01
0.14
0.18
2001.5
12
Zooplankton
Copepoda adult
Abundance (no/L)
8.85
5.74
0.65
0.34
0.4
0.06
2005.5
13
Zooplankton
Copepoda naupilii
Abundance (no/L)
3.62
1.78
0.49
-0.15
0.22
0.12
2003.5
14
Zooplankton
Rotifera
Abundance (no/L)
157.50
117.55
0.75
-19.79
0.01
0.50
2001.5
15
Zooplankton
Total Zooplankton
Abundance (no/L)
170.1
116.8
0.69
-19.62
0.01
0.49
2001.5
Table S 8 (Continued) Summary of results from analyses of lakes, with all variables used and coefficients from linear regression and tree regression.
No
Trophic
Variable
Variable description
Mean
Sd
NormVar Coefficient P-Value
R-Squared
Split
Sommerfuglesø
16
Abiotic
DOY 50% Ice cover
Julian day of year with 50% ice
cover
179.38
9.81
0.05
-1.64
0.02
0.43
2002.5
17
Abiotic
Total nitrogen
Average nitrogen load during July
and August (µg/l)
288.08
88.18
0.31
-0.69
0.92
0.00
2002.5
18
Abiotic
pH
Average pH value during July and
August
6.42
0.42
0.07
-0.02
0.51
0.04
2001.5
19
Abiotic
Total phosphor
Average phosphor content during
July and August (µg/l)
9.07
3.65
0.40
-0.26
0.30
0.09
2003.5
20
Abiotic
Average temperature
Average temperature during July
and August (ºC)
8.99
1.66
0.18
0.30
0.00
0.58
2002.5
21
Phytoplankton
chlorophyll
Average chlorophyll content during
July and August (µg/l)
2.09
2.88
1.38
-0.18
0.44
0.07
2005.5
22
Phytoplankton
Chrysophyceae
Concentration (mm3/l)
229.09
163.22
0.71
15.32
0.25
0.15
2004.0
23
Phytoplankton
Diatomophyceae
Concentration (mm3/l)
1.64
2.42
1.48
0.23
0.25
0.15
2005.5
24
Phytoplankton
Dinophyceae
Concentration (mm3/l)
88.82
81.91
0.92
13.89
0.02
0.47
2004.0
25
Phytoplankton
Total Phytoplankton
Concentration (mm3/l)
322.45
211.13
0.65
29.02
0.07
0.31
2004.0
26
Zooplankton
Cladocera
Abundance (no/L)
5.43
3.23
0.59
0.07
0.75
0.01
2003.5
27
Zooplankton
Copepoda adult
Abundance (no/L)
0.72
0.63
0.87
0.07
0.09
0.22
2005.5
28
Zooplankton
Copepoda naupilii
Abundance (no/L)
1.9
2.1
1.1
-0.2
0.14
0.17
2002.5
29
Zooplankton
Rotifera
Abundance (no/L)
75.77
65.66
0.87
-5.51
0.22
0.12
2001.5
30
Zooplankton
Total Zooplankton
Abundance (no/L)
83.66
65.19
0.78
-5.62
0.21
0.13
2001.5