Yellowstone's Northern Range - Greater Yellowstone Science ...

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lJ2 , Estimated # of Elk Year Date Actual Count Population' Removed Comments 1962-63 1,820 1963-64 1.151 1964-65 4,865 1,904 Helicopter count. 1965-66 1,270 1966-67 3,842 2,648 Helicopter count. 1967-68 3,172 1,100 Done by fixed -wing aircraft. Elk reductions stopped. 1968-69 4,305 50 Done by fixed-wing aircraft. 1969-70 5,543 h 50 Done by fixed-wing aircraft.; 1970-71 7,281 45 Helicopter count. 1971-72 8,215 75 Helicopter count. 1972-73 9,981 154 Helicopter count. 1973-74 10,529 210 Helicopter count. 1974-75 12,607 147 Helicopter count. 1975-76 12117-18175 12,014 12,354 1,529 Beginning of late-season elk hunts. 1976-77 1123-24/77 8,980 9,199 219 Survey conditions exceptionally poor resulting in inaccurate count. 1977-78 12/20-21177 12,680 12,941 1,067 1978-79 12129-30178 10,838 11,149 341 1979-80 No count 661 1980-81 No count 376 1981-82 116-7/82 16,019 16,473 1,359 1982-83 No count I.881 1983-84 No count 2,061 1984-85 No count 1,571 1985-86 12119-20/85 16,286 16,885 1,498 1986-87 12110/86 17,007 17,901 1,739 1987-88 1119/88 18,913 19,316 579 1988-89 1126;2/9/89 10,265 11,148 2,896 1989-90 1118-19190 14,829 15,805 1,299 1990-91 2/6/91 9,456 10,287 1,005 Survey conditions exceptionally poor resulting in inaccurate count. 1991-92 12/16/92 12,859 15,587 4,515 1992-93 11121;12/3/92 17,585 18,066 2,055 1993-94 1120-24/94 19,045 19,359 527 1994-95 12121194 16,791 17,290 2,538 1995-96 No count 1996-97 No count Limited aircraft availability and poor flying conditions resulted in no count. " Minimum fall population estimate = maximum survey count + estimated fall harvest + late hunt removals that occurred prior to survey date, if any, ~ Maximum counts obtained in December or January from 1970 to 1979.
113 Bison winter numbers, 1901-1997. Winter Total Count Winter Total Count 1901-02 44 1934-35 1902-03 47 1935-36 847 1903-04 51 1936-37 674 1904-05 74 1937-38 755 1905-06 1938-39 811 1906-07 84 1939-40 868 1907-08 95 1940-41 809 1908-09 118 1941-42 869 1909-10 149 1942-43 964 1910-11 168 1943-44 747 1911-12 192 1944-45 932 1912-13 215 1945-46 791 1913-14 1946-47 1914-15 270 1947-48 960 1915-16 348 1948-49 1126 1916-17 397 1949-50 1094 1917-18 1950-51 1918-19 504 1951-52 976 1919-20 501 1952-53 1920-21 602 1953-54 1477 1921-22 647 1954-55 1922-23 748 1955-56 1258 1923-24 1956-57 543 1924-25 830 1957-58 1925-26 931 1958-59 1926-27 1008 1959-60 1927-28 1057 1960-61 869 1928-29 1109 1961-62 1929-30 1124 1962-63 1930-31 1192 1963-64 1931-32 1964-65 1932-33 1965-66 388 1933-34 1966-67 226
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YELLOW"STONE'S NORTHERN RANGE COMPL
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Suggested citation: Yellowstone Nat
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c=J Northern Winter Range _ Boundar
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Aspen, willows, and biodiversity ..
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vii
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THE NORTHERN RANGE xii range criter
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THE NORTHERN RANGE 2 Figure 1.1. Ph
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THE NORTHERN RANGE tion. There was
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THE NORTHERN RANGE 6 Figure 1.6. Gr
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THE NORTHERN RANGE 8 Figure 1.8. El
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THE NORTHERN RANGE 10 unpopular or
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THE NORTHERN RANGE 12 earlier Yello
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THE NORTHERN RANGE 16 Northern rang
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Figure 2.3. Sum ot rotal annual riv
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THE NORTHERN RANGE 20 Figure 2.4 Tr
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THE NORTHERN RANGE 22 dendrochronol
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THE NORTHERN RANGE 24 Figure 2.7. A
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THE NORTHERN RANGE 26 et al. (1991)
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THE NORTHERN RANGE 28 earlier time,
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.', P (/ i0~ , • 9 ~ § , , ~ , i
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THE NORTHERN RANGE 32 systems-range
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THE NORTHERN RANGE 34 indicates the
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THE NORTHERN RANGE 36 Data were gat
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THE NORTHERN RANGE 38 grazed and un
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THE NORTHERN RANGE showed that graz
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Figure 4.1. Northern range, showing
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Figure 4.2. Willow distribution in
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THE NORTHERN RANGE 48 Figure 4.4. I
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THE NORTHERN RANGE 50 public lands,
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THE NORTIlERN RANGE 52 Figure 4.5.
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THE NORTHERN RANGE 54 able uncertai
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THE NORTHERN RANGE 56 to confirm an
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THE NORTHERN RANGE 58 RESEARCH RECO
Page 77 and 78: SOIL, EROSION, SEDIMENTS, AND WATER
Page 79 and 80: SOIL, EROSION, SEDIMENTS, AND WATER
Page 81 and 82: ated with ungulate winter ranges. T
Page 83 and 84: ELK POPULATION ISSUES IS YELLOWSTON
Page 85 and 86: ange grazing issue, Yellowstone man
Page 87 and 88: ELK POPULATION ISSUES 71 ... Other
Page 89 and 90: ELK POPULATION ISSUES 73 1996d), so
Page 91 and 92: ELK POPULATION ISSUES 75 the northe
Page 93 and 94: ELK POPULATION ISSUES 77 It has evo
Page 96 and 97: 4 , ~ 1 v " 'It , \ J~ ~""~ .:,~ ",
Page 98 and 99: THE NORTHERN RANGE 82 Competition t
Page 100 and 101: Figure 7.3. Bison winter range. Sin
Page 102 and 103: THE NORTHERN RANGE Figure 7.7. Envi
Page 104 and 105: THE NORTHERN RANGE 88 not aware of
Page 106 and 107: THE NORTHERN RANGE 90 tion size, an
Page 108 and 109: THE NORTHERN RANGE 92 activity (95
Page 110 and 111: THE NORTHERN RANGE 94 pursue the su
Page 112 and 113: THE NORTHERN RANGE 96 factors were
Page 114 and 115: THE NORTHERN RANGE Figure 7.13. Num
Page 116 and 117: , .. , , " , ! I ." ~, ~ " ,.\ ,•
Page 118 and 119: THE NORTHERN RANGE 102 complex set
Page 120 and 121: THE NORTHERN RANGE 104 practically
Page 122 and 123: THE NORTHERN RANGE 106 appear suppr
Page 124 and 125: AppendixA. Conferences, Meetings, a
Page 126 and 127: lJO Year Estimate Comment Source 19
Page 130 and 131: lJ4 Winter Total Count 1967-68 397
Page 132 and 133: 116 Year Date of Count Parkwide Par
Page 134 and 135: 118 Counts and estimates of mule de
Page 136 and 137: 120 Northern Yellowstone winter ran
Page 138 and 139: 122 Population estimates and reduct
Page 140 and 141: 124 Actual count Inside Outside Est
Page 142 and 143: Pronghorn counted during spring sur
Page 144 and 145: 128 Year 1939 1940 1941 1942 1943 1
Page 146 and 147: Ground and aerial counts of bighorn
Page 148 and 149: REFERENCE LIST NOTES ON THIS REFERE
Page 150 and 151: Pages 199-210 in Carbyn, L.N., S.H.
Page 152 and 153: Yellowstone National Park. Technica
Page 154 and 155: mammal mortality in the 1988 Yellow
Page 156 and 157: National Park. International Journa
Page 158 and 159: Mehus, C.A. 1995. Influences ofbraw
Page 160 and 161: __ , and __ . 1996a. Preburn root b
Page 162 and 163: Pages 127-138 in F.J. Singer, ed. E
Page 164 and 165: some northern Yellowstone elk. M.S.
Page 166: I I I I I
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