. The Canadian field-naturalist. Bison Moose Figure 2. (A) Available Bison and Moose biomass in the Mackenzie Bison Sanctuary and Mink Lake area, (B) frequency of occurrence of Bison and Moose in Wolf scats (during winter) in the Mackenzie Bison Sanctuary and Mink Lake area, n = total number of scats. 0) O c 0 i. s- 3 0 o 0 > o c 0) D u o -1 MBS Winter n-54 Moom Hara Mom** BW consumed. The number of scats containing Bison and Moose was equal in ML during winter. In MBS, Bison was present in more scats than Moose (Figure 3). The proportion of scats from MBS containing Moose and Bison was sim
. The Canadian field-naturalist. Bison Moose Figure 2. (A) Available Bison and Moose biomass in the Mackenzie Bison Sanctuary and Mink Lake area, (B) frequency of occurrence of Bison and Moose in Wolf scats (during winter) in the Mackenzie Bison Sanctuary and Mink Lake area, n = total number of scats. 0) O c 0 i. s- 3 0 o 0 > o c 0) D u o -1 MBS Winter n-54 Moom Hara Mom** BW consumed. The number of scats containing Bison and Moose was equal in ML during winter. In MBS, Bison was present in more scats than Moose (Figure 3). The proportion of scats from MBS containing Moose and Bison was similar (P>) between sea- sons (Z = for Moose, Z = for Bison, snow free=summer, snow cover = winter). During winter the proportion of scats containing Bison was greater in MBS than that at ML (, Z = ). Insufficient sample size prevented the seasonal comparison of scats found in ML. The number of scats containing Moose was sig- nificantly greater than that expected given the avail- able biomass of Moose and Bison in both ML and MBS (G = ML, G = MBS, P<) (Figure 3). Wolves consumed kg of Bison per 1 kg of Moose in MBS, compared to kg of Bison per 1 kg of Moose in ML. Forty-one'of 46 documented Wolf kills were Bison. Of the 41 Bison kills, 31 were juveniles: 26. Prey Type Figure 3. Percent frequency occurrence of various prey items found in Wolf scats during different sea- sons and in different areas. Values above histograms are the number of occurrences, n = number of scats. calves and 5 yearlings (Figure 4). The greater propor- tion of Bison, especially juveniles, in Wolf kills was more pronounced in MBS. Moose made up a larger proportion of kills at ML than at MBS (Figure 4).. 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.
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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
