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USFS Logo Research Data Archive
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Displaying items 1 - 20 of 201
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Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Dendroctonus obesus.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: systematic zoology
insecta
Location: Alaska
Description: Dendroctonus obesus.
Date: 12/1957

Old Tom Creek as it enters tidal meadow. Note trail, tributary joining from left, and cabin under trees.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: hydrology
water conservation, soil conservation and erosion
watershed management
studies on stream-flow and bank erosion:
Location: Alaska; Prince of Wales Island; Old Tom Creek
Description: Old Tom Creek as it enters tidal meadow. Note trail, tributary joining from left, and cabin under trees.
Date: 9/18/1957

Traps dug into position for use in seed dissemination studies, fall 1957. Along spur 120, Maybeso.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
artificial regeneration
seed production (seed years, seed crops etc)
Location: Alaska; Prince of Wales Island; Maybeso Valley
Description: Traps dug into position for use in seed dissemination studies, fall 1957. Along spur 120, Maybeso.
Date: 8/21/1957

Traps dug into position for use in seed dissemination studies, fall 1957. Along spur 120, Maybeso.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
artificial regeneration
seed production (seed years, seed crops etc)
Location: Alaska; Prince of Wales Island; Maybeso Valley
Description: Traps dug into position for use in seed dissemination studies, fall 1957. Along spur 120, Maybeso.
Date: 8/21/1957

Traps in scrub cedar stand in middle of Maybeso Valley.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
artificial regeneration
seed production (seed years, seed crops etc)
Location: Alaska; Prince of Wales Island; Maybeso Valley
Description: Traps in scrub cedar stand in middle of Maybeso Valley.
Date: 8/21/1957

Traps nestled on ground with cover removed to show that muslin held down with lath strips.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: regeneration and formation of stands
artificial regeneration
seed production (seed years, seed crops etc)
Location: Alaska
Description: Traps nestled on ground with cover removed to show that muslin held down with lath strips.
Date: 8/21/1957

FS [Forest Survey?] Plot 210, looking south across SP-10 B2 ? d 50'. 45-70 years. 1700' 20'/ch E. Lowerstory sparse birch; willow 10-25' in clumps. Understory SP-1-4, Labrador tea, & vaccinium sp. SP-5-10 rosa, fireweed. Fire history.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska; Index Lake
Description: FS [Forest Survey?] Plot 210, looking south across SP-10 B2 ? d 50'. 45-70 years. 1700' 20'/ch E. Lowerstory sparse birch; willow 10-25' in clumps. Understory SP-1-4, Labrador tea, & vaccinium sp. SP-5-10 rosa, fireweed. Fire history.
Date: 8/9/1957

Aspen (w/ cottonwood) saplings looking E. along trail above Packsaddle crk. [Packsaddle Gulch?].
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska; Packsaddle Creek [Gulch?]
Description: Aspen (w/ cottonwood) saplings looking E. along trail above Packsaddle crk. [Packsaddle Gulch?].
Date: 8/9/1957

FS [Forest Survey?] Plot 208, forward from SP-1 along line A 2 - y 35'. 55-60 years. 1750' 10'khs; 5/ch NE. Lowerstory a reproduction & willow clumps. Understory crowberry, vaccinium sp. Labrador tea, fireweed. Old fire sign. Photos: 1R 9 P8.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska
Description: FS [Forest Survey?] Plot 208, forward from SP-1 along line A 2 - y 35'. 55-60 years. 1750' 10'khs; 5/ch NE. Lowerstory a reproduction & willow clumps. Understory crowberry, vaccinium sp. Labrador tea, fireweed. Old fire sign. Photos: 1R 9 P8.
Date: 8/9/1957

FS [Forest Survey?] Plot 219. Across end SP-3 looking west. Offsite cottonwood, poor form, high defect. Lowerstory P w/ willow & alder. Understory rosa, grasses, highbush cranberry, fireweed.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska
Description: FS [Forest Survey?] Plot 219. Across end SP-3 looking west. Offsite cottonwood, poor form, high defect. Lowerstory P w/ willow & alder. Understory rosa, grasses, highbush cranberry, fireweed.
Date: 8/9/1957

Photos IR5 P4. Noncommercial S & willow. North-facing slope. Typical bog heather ground cover. Cold wet site.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska
Description: Photos IR5 P4. Noncommercial S & willow. North-facing slope. Typical bog heather ground cover. Cold wet site.
Date: 8/9/1957

Station "G". Foreground - nonforest grasses, sedges, willow, dwarf birch. Background - typical island type non commercial S, A, & willow.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska
Description: Station "G". Foreground - nonforest grasses, sedges, willow, dwarf birch. Background - typical island type non commercial S, A, & willow.
Date: 8/9/1957

FS [Forest Survey?] Plot 217 SP-1 looking S P2 ≡ d 40'. 90+/- years. Off-site cottonwood, poor form, high defect. Lowerstory medium P restocking. Willow, alder. Understory rosa, highbush cranberry, cow parsnip grasses.
more info/bigger image
Collection: Pacific Northwest Research Station, Alaska Image Archive
Keywords: plant ecology
vegetation types
ecotypes
Location: Alaska
Description: FS [Forest Survey?] Plot 217 SP-1 looking S P2 ≡ d 40'. 90+/- years. Off-site cottonwood, poor form, high defect. Lowerstory medium P restocking. Willow, alder. Understory rosa, highbush cranberry, cow parsnip grasses.
Date: 8/8/1957