The Alaska Species Ranking System (ASRS) is a tool that ranks vertebrate taxa ( mammals, birds, amphibians) according to their conservation concern in Alaska. Conservation concern is evaluated using 13 questions, which are split into three general categories:
- Status (2 questions, 20 points): Measures the trend (e.g. increasing, decreasing, stable) in a taxon’s population status and distribution. Higher status scores acknowledge that taxa with known declining trends are of concern regardless of current population or range size.
- Biological Vulnerability (7 questions, 50 points): Measures aspects of a taxon’s distribution, abundance and life history within the taxon’s geographic range in Alaska. Higher biological scores suggest greater vulnerability to extirpation, for example, because of small population size, low reproductive output, or specialized habitat requirements.
- Action (4 questions, 40 points): Qualifies the current state of knowledge and extent of conservation efforts directed toward a given taxon within Alaska. Higher scores denote greater information needs or conservation action
The ASRS was developed in partnership with the ADF&G TED Program and is based on Florida’s Species Ranking System
| Scientific Name | Common Name | Status Score | Biological Vulnerability Score | Action Score | ASRS Conservation Report | Range Map |
|---|---|---|---|---|---|---|
| Anser albifrons elgasi | Tule Greater White-fronted Goose | 0 | -2 | 4 |  |  |
| Aythya affinis | Lesser Scaup | -5 | -34 | 0 | | |
| Calidris alba | Sanderling | 0 | -8 | 12 | | |
| Calidris virgata | Surfbird | 0 | -17 | 12 | | |
| Cardellina pusilla | Wilson's Warbler | 0 | -32 | 4 | | |
| Certhia americana | Brown Creeper | 0 | -26 | 8 | | |
| Certhia americana alascensis | Brown Creeper alascensis | 0 | -16 | 8 | | |
| Certhia americana occidentalis | Brown Creeper occidentalis | -6 | -10 | 8 | | |
| Clangula hyemalis | Long-tailed Duck | 2 | -40 | 4 | | |
| Corvus corax | Common Raven | -11 | -36 | -4 | | |
| Corvus corax kamtschaticus | Common Raven (kamtschaticus) | 0 | -18 | 16 | | |
| Corvus corax principalis | Common Raven (principalis) | -11 | -36 | -4 | | |
| Cyanocitta stelleri | Steller's Jay | -6 | -41 | 16 | | |
| Cygnus buccinator | Trumpeter Swan | -8 | -24 | 0 | | |
| Cypseloides niger | Black Swift | 6 | 11 | 24 | | |
| Dicrostonyx groenlandicus | Northern Collared Lemming | 0 | -32 | 24 | | |
| Geothlypis trichas | Common Yellowthroat | -6 | -24 | 16 | | |
| Glaucomys sabrinus | Northern Flying Squirrel | -5 | -27 | 24 | | |
| Junco hyemalis | Dark-eyed Junco | -6 | -36 | 0 | | |
| Junco hyemalis hyemalis | Dark-eyed Junco (hyemalis) | -6 | -36 | 0 | | |
| Junco hyemalis oreganus | Dark-eyed Junco (oreganus) | -6 | -20 | 0 | | |
| Lasionycteris noctivagans | Silver-haired Bat | 0 | -7 | 24 | | |
| Lepus othus | Alaska Hare | 0 | -38 | 4 | | |
| Lithobates sylvaticus | Wood Frog | 0 | -30 | 24 | | |
| Melanitta americana | Black Scoter | 2 | -16 | 0 | | |
| Melanitta fusca | White-winged Scoter | -3 | -28 | 4 | | |
| Microtus longicaudus | Long-tailed Vole | 0 | -38 | 32 | | |
| Microtus miurus | Singing Vole | 0 | -32 | 24 | | |
| Microtus oeconomus | Root Vole | 0 | -38 | 24 | | |
| Microtus pennsylvanicus | Meadow Vole | 0 | -44 | 32 | | |
| Microtus xanthognathus | Yellow-cheeked Vole | 0 | -38 | 32 | | |
| Myodes rutilus | Northern Red-backed Vole | 0 | -38 | -8 | | |
| Myotis californicus | California Myotis | 0 | -7 | 24 | | |
| Myotis evotis | Long-eared Bat (Keen's Myotis) | 0 | -7 | 24 | | |
| Myotis lucifugus | Little Brown Myotis | 0 | -25 | 16 | | |
| Myotis volans | Long-legged Myotis | 0 | 3 | 40 | | |
| Ochotona collaris | Collared Pika | 0 | -23 | 4 | | |
| Perisoreus canadensis | Gray Jay | 6 | -38 | 16 | | |
| Poecile atricapillus | Black-capped Chickadee | -6 | -38 | 16 | | |
| Poecile cinctus | Gray-headed Chickadee | 12 | -20 | 40 | | |
| Poecile hudsonicus | Boreal Chickadee | -6 | -35 | 16 | | |
| Rana luteiventris | Columbia Spotted Frog | 0 | -19 | 24 | | |
| Regulus calendula calendula | Ruby-crowned Kinglet (calendula) | 0 | -32 | 16 | | |
| Regulus calendula grinnelli | Ruby-crowned Kinglet (grinnelli) | -6 | -20 | 12 | | |
| Regulus satrapa | Golden-crowned Kinglet | 0 | -25 | 16 | | |
| Selasphorus rufus | Rufous Hummingbird | 10 | -24 | 16 | | |
| Setophaga ruticilla | American Redstart | 0 | -14 | 8 | | |
| Somateria spectabilis | King Eider | -3 | -10 | 4 | | |
| Sorex cinereus | Cinereus Shrew | 0 | -42 | 32 | | |
| Sorex hoyi | Pygmy Shrew | 0 | -38 | 32 | | |
| Sorex jacksoni | St. Lawrence Island Shrew | 0 | 8 | 32 | | |
| Sorex monticola | Dusky Shrew | 0 | -38 | 32 | | |
| Sorex navigator | Western Water Shrew | 0 | -30 | 40 | | |
| Sorex pribilofensis | Pribilof Island Shrew | 0 | 8 | 32 | | |
| Sorex tundrensis | Tundra Shrew | 0 | -38 | 32 | | |
| Sorex ugyunak | Barren Ground Shrew | 0 | -32 | 32 | | |
| Sphyrapicus ruber | Red-breasted Sapsucker | -10 | -19 | -8 | | |
| Surnia ulula | Northern Hawk-Owl | 0 | -22 | 16 | | |
| Synaptomys borealis | Northern Bog Lemming | -5 | -24 | 32 | | |
| Tamiasciurus hudsonicus | Red Squirrel | 0 | -34 | 0 | | |
| Tringa incana | Wandering Tattler | 0 | -24 | 12 | | |
| Urocitellus parryii | Arctic Ground Squirrel | 0 | -40 | 24 | | |
Looking for more?
Additional range maps for species not listed here can be viewed on the Wildlife Data Portal. References cited in the Conservation Reports can be viewed on our online reference library. Questions? Comments? Can’t find the report you’re looking for? Reach out to us and we’ll do our best to help!