Appendix D. Prioritization of habitat types and physiographic subprovinces for conservation of focal species in shrub steppe habitats in the Columbia Plateau Landbird Conservation Planning Region.a
|
Habitat Type |
Focal Species
Other Species |
Habitat Type b |
Physiographic Subprovinces c | ||||||||
| ST | SS | SB | SH | JS | OU | GB | HP | CB | PP | ||
|
Grassland (Steppe) |
grasshopper sparrow | 1 | 2 | no | no | no | 2 | 2 | no | 1 | 1 |
| long-billed curlew | 1 | 1 | no | no | no | 1 | 1 | 2 | 1 | 1 | |
| short-eared owl | 1 | 1 | no | no | no | 1 | 1 | no | 1 | 1 | |
|
Grassland (Steppe) - Shrubland |
loggerhead shrike | no | 1 | 2 | 2 | 1 | 1? | 1 | 2 | 1 | 2 |
| burrowing owl | 1 | 1 | 2? | 2? | no | 1? | 1 | 2? | 1 | 1 | |
| sharp-tailed grouse | 1 | 1 | 2 | 2 | no | no | no | no | 1 | 1 | |
| vesper sparrow | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | |
| western meadowlark | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | |
| horned lark | 1 | 1 | 2 | 2 | no | 1 | 1 | 2 | 1 | 1 | |
|
Sagebrush |
sage sparrow | no | 2 | 1 | 2 | 2 | 1? | 1 | 1 | 1 | no |
| sage grouse | no | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | no | |
| Brewer's sparrow | no | 2 | 1 | 1? | 2? | 1 | 1 | 1? | 1 | 2 | |
| sage thrasher | no | 1 | 1 | 1? | 2 | 1 | 1 | 1 | 1 | no | |
|
Shrublands |
lark sparrow | no | 1 | 2 | 1 | 1 | 1 | 1 | 2? | 2 | no |
| black-throated sparrow | no | 1 | 2 | 1 | no | 1 | 1 | no | no? | no | |
| green-tailed towhee | no | 2 | 1 | 1 | 2 | 1 | 1 | 1 | no | no | |
|
Juniper-Steppe |
ferruginous hawk | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 1 |
| Swainson's hawk | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | |
a Priority importance is subjectively quantified to focus conservation efforts within core areas of a species breeding distribution; 1= highest priority for conservation; 2= lower priority for conservation; no= conservation not recommended. NOTE: These rankings are only applicable where suitable habitat occurs for that species in that subprovince (see text for descriptions of suitable habitat).
b ST = Steppe; SS = Steppe-Shrublands; SB = Sagebrush; SH = Shrublands; JS = Juniper-Sage/Steppe.
c Physiographic provinces are modified from Franklin and Dyrness (1973); OU= Owyhee Uplands; GB = Great Basin: HP = High Lava Plains; CB = Columbia Basin; PP = Palouse Prairie.
Appendix C. Summary of habitat features important to shrub-steppe landbirds in the Columbia Plateau Landbird Conservation Planning Region. a
| Focal Species
Other Species |
Habitat Condition | |||||||||||
| Native
Perennial Grassland |
Open Patchy Shrubs |
Burrows |
Large Patches Sage | Dense
Sage Cover |
Tall shrub | Native Herb Understory | Ecotone (herb,shrub tree) | Desert
Scrub |
Mature
Juniper
Trees |
Bare ground | Grass Nest Cover | |
| grasshopper sparrow | x | x | x | |||||||||
| long-billed curlew | x | x | x | |||||||||
| short-eared owl | x | x | x | |||||||||
| loggerhead shrike | x | x | x | x | x | x | x | |||||
| burrowing owl | x | x | x | x | x | |||||||
| sharp-tailed grouse | x | x | x | x | x | x | x | x | ||||
| vesper sparrow | x | x | x | |||||||||
| western meadowlark | x | x | x | |||||||||
| horned lark | x | x | x | x | ||||||||
| sage sparrow | x | x | x | x | x | |||||||
| Brewer's sparrow | x | x | x | x | x | x | ||||||
| sage thrasher | x | x | x | x | x | x | x | |||||
| sage grouse | x | x | x | x | x | x | x | x b | x | |||
| lark sparrow | x | x | x | x | x | x | ||||||
| green-tailed towhee | x | x | x | x | x | x | ||||||
| black-throated sparrow | x | x | ||||||||||
| ferruginous hawk | x | x | x | x | x | |||||||
| Swainson's hawk | x | x | x | x | x | |||||||
a Modified from Paige and Ritter (1999).
b Important for lek sites.