|
Ecoregion Level IIb |
Years (areas) |
# Prey Items |
Primary Prey |
Secondary Prey |
Tertiary Prey |
|
Southern Arctic, Canadac |
4 (1) |
44 |
Sciurids (U. parryii g) |
Waterfowl (Branta canadensis, Somateria spp.) |
Leporids (Lepus arcticus) |
|
Alaska Tundrad |
2 (1) |
727 |
Sciurids (S. parryii g) |
Birds (Lagopus spp.) |
Waterfowl (F. Anatidae) |
|
Boreal Cordillera e |
13 (1) |
2,569 |
Sciurids (S. parryii g) |
Leporids (Lepus americanus) |
Birds (Lagopus lagopus) |
|
Western Cordillera f |
45 (1) |
3,859 |
Sciurids (O. variegatusi) |
Sciurids (Marmota spp.) |
Leporids (Lepus spp.) |
|
West Central Semi-Arid Prairies f |
7 (3) |
2052 |
Leporids (Lepus spp., Sylvilagus spp.) |
Birds |
Sciurids (Cynomys spp.k, Marmota spp.) |
|
South Central Semi-Arid Prairies f |
1 (1) |
200 |
Leporids (Lepus spp., Sylvilagus spp.) |
Sciurids (Cynomys spp.k) |
Other mammals |
|
Cold Deserts f |
129 (22) |
36,641 |
Leporids (Lepus spp., Sylvilagus spp.) |
Sciurids (Otospermophilus/ Urocitellus/Marmota/Cynomys spp.k) |
Birds |
|
Warm Deserts f |
10 (6) |
1,790 |
Leporids (Lepus spp., Sylvilagus spp.) |
Sciurids (O. variegatusi) |
Other mammals |
|
Mediterranean California f |
8 (3) |
904 |
Sciurids (O. beecheyij) |
Other mammals |
Leporids (Lepus spp.) |
|
Upper Gila Mountains f |
1 (1) |
336 |
Leporids (Lepus spp., Sylvilagus spp.) |
Other mammals |
Sciurids (O. variegatusi, Cynomys spp.k) |
a From Table 2 in Bedrosian et al. (304), except for the Southern Arctic, Boreal Cordillera, and Alaska Tundra ecoregions.
b (CEC 2016)
c Poole and Bromley (134), North-central Nunavut, Canada (68° N)
d Herzog et al. (344), Seward Peninsula, Alaska (65° N)
e Carol L. McIntyre (unpublished data), Denali National Park, Alaska (64° N)
f See Bedrosian et al. (304) for specific data sources, years of study, and study locations.
g Urocitellus parryii, Arctic ground squirrel
i Otospermophilus variegatus, Rock squirrel
j Otospermophilus beecheyi, California ground squirrel
k Cynomys spp., prairie dogs