Cookie cutter evaluation: Progress report Jean-Francois Giroux
Material type:
TextPublication details: Manitoba : 1979Description: 18 p. : ill. ; 28 cmOnline resources: Abstract: Study on the integrity of the ditches was continued at Delta and evaluation of waterfowl use of existing ditches was initiated in Manitoba and the Maritimes. We also designed three experiments to assess the effect of cookie-cutter ditches on waterfowl. At Delta, the maximum decrease of ditches' depth was 20 cm in floating phragmites and cattail.Number of pairs per km (per mi.) of ditches varied from 1.3 (2.1) at Steeprock to 5.6 (9.0) at Paunchy Lake. At Missaquash Marsh, no major difference in pair use was observed between two plots with 9 and 13%removal of vegetation.
| Item type | Current library | Collection | Call number | Status | Notes | Date due | Barcode |
|---|---|---|---|---|---|---|---|
Electronic Report
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Electronic Library | Non-fiction | GIR (Browse shelf(Opens below)) | Available | Progress Report 1979 | 3624 |
CD# 2 file GIR015.PDF
Study on the integrity of the ditches was continued at Delta and evaluation of waterfowl use of existing ditches was initiated in Manitoba and the Maritimes. We also designed three experiments to assess the effect of cookie-cutter ditches on waterfowl. At Delta, the maximum decrease of ditches' depth was 20 cm in floating phragmites and cattail.Number of pairs per km (per mi.) of ditches varied from 1.3 (2.1) at Steeprock to 5.6 (9.0) at Paunchy Lake. At Missaquash Marsh, no major difference in pair use was observed between two plots with 9 and 13%removal of vegetation.