. The Canadian field-naturalist. E L E L MAY JUN N=6 11 14 14. E L JUL AUG 12 11 11 6 Figure 1. Minimum percentage volume of four major foods in 119 Grizzly Bear feces collected by semi- monthly period during 1981-1983. E = Early; L = Late; n = number of feces analyzed three percent of our classified digging records had this southwest exposure (225° ± 90°). Slopes >24° composed 80% of the classified records. Most records (84%) were in sites between 1700-2100 m. The steep slopes, southwesterly aspect, and upper elevation of most hedysarum digging areas con- tributed to xeric site conditions
. The Canadian field-naturalist. E L E L MAY JUN N=6 11 14 14. E L JUL AUG 12 11 11 6 Figure 1. Minimum percentage volume of four major foods in 119 Grizzly Bear feces collected by semi- monthly period during 1981-1983. E = Early; L = Late; n = number of feces analyzed three percent of our classified digging records had this southwest exposure (225° ± 90°). Slopes >24° composed 80% of the classified records. Most records (84%) were in sites between 1700-2100 m. The steep slopes, southwesterly aspect, and upper elevation of most hedysarum digging areas con- tributed to xeric site conditions through increased solar radiation and exposure into chinook wind. Also leading to xeric conditions was the well-drained, often colluvial, soil. Fifty-five percent of the digging records were classified as being in sites where collu- vium was a noted habitat characteristic. A canopy of immature Lodgepole Pine {Pinus contorta) was characteristic of 21% of the Yellow Hedysarum digging records: 12% percent of the dig- ging records were in sites where the forest canopy was estimated as 25% or more, and 9% occurred where the forest canopy was classified as being scat- tered to 25%. Bearberry We observed Grizzly Bears feeding on Bearberries between 1500-2000 m on steep, dry meadow slopes facing southwest (225 + 90°). Sites with abundant colluvium and xeric scrub were typi- cal Bearberry habitat. Other habitat may have been used: Bearberry feeding could not be recognized from site examination and thus was recorded only during sightings of foraging bears in open habitat. Glacier Lily/green forage Feeding for Glacier Lily corms and green forage occurred in mesic to hygric sites, most commonly (>70%) in alder thicket and tall-herb communities of avalanche paths. These mesic avalanche slopes gen- erally had an easterly aspect, with exposure away from the chinook wind (>80% of Cow Parsnip and Glacier Lily feeding observations were on slopes of 0-179° aspect). Some umbellifer fee
Size: 1510px × 1654px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
