. The Canadian field-naturalist. 8 Intestines 16 Scats. D Green Vegsfation Fruit Animal Other Green Vegetation Fruit Animal Other Green Vegetation Fruit Animal Other 0 20 40 60 80 100 FALL 11 Stomachs 8 Intestines 28 Scats Percent occurrences trace Figure 2. Frequency of occurrence of major black bear food materials in interior Alaska, 1964-65. The proportion of all occurrences which were at the trace level only is depicted visually for each food cate- gory. The associated numerical values, expressed as a percentage of the occurrences for each cate- gory, are listed in Table 3. The actual freq
. The Canadian field-naturalist. 8 Intestines 16 Scats. D Green Vegsfation Fruit Animal Other Green Vegetation Fruit Animal Other Green Vegetation Fruit Animal Other 0 20 40 60 80 100 FALL 11 Stomachs 8 Intestines 28 Scats Percent occurrences trace Figure 2. Frequency of occurrence of major black bear food materials in interior Alaska, 1964-65. The proportion of all occurrences which were at the trace level only is depicted visually for each food cate- gory. The associated numerical values, expressed as a percentage of the occurrences for each cate- gory, are listed in Table 3. The actual frequencies of trace occurrences may be read directly from the scale shown. Identifications were verified by comparison with collections made during the field seasons in the case of fruits, comparison with reference speci- mens from the University of Alaska Museum in the case of mammals and birds, and com- parison with pressed specimens from the Uni- versity of Alaska Herbarium and consultation with local botanists in the case of green vegeta- tion. Results Figures 2 and 3 depict the relative impor- tance of major food categories by frequency of occurrence and by aggregate percentage volume respectively during each of two seasons of bear activity. Table 3 provides a seasonal compari- son of frequency and quantitative information for individual food items found in stomachs, intestines and scats. Table 4, a list of trace. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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