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January 7, 2025 18:06
Hudson Bay company Lynx-Hare dataset from Leigh 1968, parsed from paper copy http://katalog.ub.uni-heidelberg.de/titel/66489211 (This is the entire Table II)
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year | hare | lynx | |
---|---|---|---|
1847 | 21000 | 49000 | |
1848 | 12000 | 21000 | |
1849 | 24000 | 9000 | |
1850 | 50000 | 7000 | |
1851 | 80000 | 5000 | |
1852 | 80000 | 5000 | |
1853 | 90000 | 11000 | |
1854 | 69000 | 22000 | |
1855 | 80000 | 33000 | |
1856 | 93000 | 33000 | |
1857 | 72000 | 27000 | |
1858 | 27000 | 18000 | |
1859 | 14000 | 8000 | |
1860 | 16000 | 4000 | |
1861 | 38000 | 4000 | |
1862 | 5000 | 4000 | |
1863 | 153000 | 20000 | |
1864 | 145000 | 35000 | |
1865 | 106000 | 68000 | |
1866 | 46000 | 70000 | |
1867 | 23000 | 40000 | |
1868 | 2000 | 22000 | |
1869 | 4000 | 9000 | |
1870 | 8000 | 5000 | |
1871 | 7000 | 4000 | |
1872 | 60000 | 10000 | |
1873 | 46000 | 18000 | |
1874 | 50000 | 19000 | |
1875 | 103000 | 43000 | |
1876 | 87000 | 37000 | |
1877 | 68000 | 22000 | |
1878 | 17000 | 15000 | |
1879 | 10000 | 10000 | |
1880 | 17000 | 8000 | |
1881 | 16000 | 8000 | |
1882 | 15000 | 30000 | |
1883 | 46000 | 52000 | |
1884 | 55000 | 75000 | |
1885 | 137000 | 80000 | |
1886 | 137000 | 33000 | |
1887 | 95000 | 20000 | |
1888 | 37000 | 13000 | |
1889 | 22000 | 7000 | |
1890 | 50000 | 6000 | |
1891 | 54000 | 10000 | |
1892 | 65000 | 20000 | |
1893 | 60000 | 35000 | |
1894 | 81000 | 55000 | |
1895 | 95000 | 40000 | |
1896 | 56000 | 28000 | |
1897 | 18000 | 16000 | |
1898 | 5000 | 5000 | |
1899 | 2000 | 6000 | |
1900 | 15000 | 10000 | |
1901 | 2000 | 21000 | |
1902 | 6000 | 35000 | |
1903 | 45000 | 50000 |
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Thanks for your time Michael.
Indeed I was suspecting that the typo comes from the original authors. Maybe it is not a typo, as the hare population is quite noisy all along the dataset, possibly due to external factors that do not affect the lynx population as much.
Thanks for your suggestions, i will be trying them out. 😄