. The Canadian field-naturalist. 3 4 SURVEY PERIODS NUKCER OF EAGLES 12. 3 4 5 SURVEY PERIODS WMATURES SURVEY PERKDDS 1 15-30 NOV 2 01-15 DEC 3 16-31 DEC 4 01-15 JAN 5 15-31 JAN 6 01-15 FEB Figure 2. Summary of Bald Eagle numbers and age composition along the Au Sable, Manistee, and Muskegon rivers in northern Michigan, 15 November 1989 to 15 February 1990. frequently used species were Pinus strobus and Acer rubrum (Table 2), which collectively were taller (P = ) and had greater DBH (P = ) than the remaining perch species; crown class (P = ) and stand density did not vary (P = 0
. The Canadian field-naturalist. 3 4 SURVEY PERIODS NUKCER OF EAGLES 12. 3 4 5 SURVEY PERIODS WMATURES SURVEY PERKDDS 1 15-30 NOV 2 01-15 DEC 3 16-31 DEC 4 01-15 JAN 5 15-31 JAN 6 01-15 FEB Figure 2. Summary of Bald Eagle numbers and age composition along the Au Sable, Manistee, and Muskegon rivers in northern Michigan, 15 November 1989 to 15 February 1990. frequently used species were Pinus strobus and Acer rubrum (Table 2), which collectively were taller (P = ) and had greater DBH (P = ) than the remaining perch species; crown class (P = ) and stand density did not vary (P = ). Heights of the nearest-tallest trees, which averaged m ( = ) from perches. were comparable to perch tree heights (P = ). However, perch DBH was greater than both near- est-tallest DBH (P = ) and surrounding stand DBH (P< ). Nearest-tallest DBH was also greater than surrounding stand DBH (P< ). Only tree type and crown class varied among rivers. The percent of deciduous perch tree use. 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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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
