51 research outputs found

    Overview of the JET results in support to ITER

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    HOME RANGE RESPONSES OF WHITE-TAILED DEER TO CROP-PROTECTION FENCES

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    We studied the home ranges and activity patterns of 24 white-tailed deer (Odocoileus virginianus) in southwestern Wisconsin via radio-telemetry and visual observation to determine their response to single-strand electric crop-protection fences. Deer were allowed to establish feeding patterns in alfalfa fields during the spring green-up periods of 1986 and 1987. In mid-April of each year, 7 fences were constructed around selected 7-25 ha alfalfa fields to exclude deer from varying portions of their home ranges. No fences were constructed around alfalfa fields in one area. Fences were built around 50 and 100% of the alfalfa in 2 other areas. Deer movements were monitored in each of the 3 areas. Preliminary observations indicate that 1) marked and unmarked deer used alfalfa fields extensively from snowmelt to first cutting, 2) deer-use of alfalfa fields by deer decreased significantly (P\u3c0.05) after fences were installed in the 50 and 100% treatment areas. Conversely, deer in the 0% treatment area significantly (P\u3c0.05) increased their use of alfalfa fields after fences were installed, and 3) home ranges of deer in each of the treatment level areas decreased significantly (P\u3c0.05) in size after fences were installed. Deer limited their movements primarily to non-alfalfa areas within their pre-fencing home ranges. These results lend further support for the use of fences in deer damage control

    An analysis of Farm Management Services costed dairy farms 1987-8

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    5.00SIGLEAvailable from British Library Document Supply Centre- DSC:7546.31(MMB-FMS-R--62) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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