Laserfiche WebLink
Results Page 3 of 8 <br />41111. ,1 %% / iii � <br />0 1 -25 26 -50 51 -75 76 -100 <br />Class <br />Figure 2. Percentage of wetland shorelines in mowed grass or pasture for wetlands with and without <br />Canada geese, Twin Cities of Minnesota, June, 1994. <br />significant differences (P >.05) between class means. Regression of threshold by year indicated no <br />relationship (P >0.05), suggesting that the public has become neither more or Less tolerant over time. <br />Complaints per year were cyclic with peaks in 1988 and 1993, caused we believe by increased media <br />coverage in the late 1980s and the during the legal suit in 1993. <br />Goose Redistribution Techniques <br />Short -term, goose redistribution methods were recorded as low (no or little effect), moderate <br />(worked but the geese returned), and high (birds were displaced and stayed away). Of the 12 <br />techniques used, 8 were rated low, 2 moderate, and 2 high. Fences, both permanent and temporary, <br />blocking access during the brood - rearing period in June and July were most effective (Table 2). <br />Harassment with dogs during brood - rearing was moderately successful, whereas dogs, particular <br />border collies, were highly <br />Shoreline Length (Km) <br />30 <br />25 - <br />20 - <br />15- <br />10- <br />5- <br />0 <br />y =0.77472+3.3340e-2x <br />-1.0203e-5x'2 <br />0 <br />500 <br />1000 1500 <br />Number of Geese <br />2000 <br />Figure 3. Relationship between the number of Canada geese and the amount of shoreline in mowed <br />grass or pasture, Twin Cities of Minnesota, June 1994. <br />effective on flying birds in fall. Geese avoided areas sprayed with methyl anthranilate but the effect <br />lasted <3 weeks and the material was expensive ($396/ha/treatment). <br />Productivity Reduction <br />-37- <br />http://www.fw.umn.edu / research /goose /html /urban /manage6.html 4/7/00 <br />