Waterfowl Population Status, 2006
In the Waterfowl Breeding Population and Habitat Survey traditional survey area (strata 1-18, 20-50, and 75-77), the total duck population estimate was 36.2 ± 0.6 [SE] million birds. This was 14% greater than last year’s estimate of 31.7 ± 0.6 million birds and 9% above the 1955-2005 long-term avera...
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ftunivnebraskali:oai:digitalcommons.unl.edu:usfwspubs-1420 2023-11-12T04:01:01+01:00 Waterfowl Population Status, 2006 Garrettson, Pamela R. Moser, Timothy J. Wilkins, Khristi 2006-07-25T07:00:00Z application/pdf https://digitalcommons.unl.edu/usfwspubs/421 https://digitalcommons.unl.edu/context/usfwspubs/article/1420/viewcontent/waterfowl_status_2006__revised_28_July.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usfwspubs/421 https://digitalcommons.unl.edu/context/usfwspubs/article/1420/viewcontent/waterfowl_status_2006__revised_28_July.pdf US Fish & Wildlife Publications text 2006 ftunivnebraskali 2023-10-30T09:48:45Z In the Waterfowl Breeding Population and Habitat Survey traditional survey area (strata 1-18, 20-50, and 75-77), the total duck population estimate was 36.2 ± 0.6 [SE] million birds. This was 14% greater than last year’s estimate of 31.7 ± 0.6 million birds and 9% above the 1955-2005 long-term average. Mallard (Anas platyrhynchos) abundance was 7.3 ± 0.2 million birds, which was similar to last year’s estimate of 6.8 ± 0.3 million birds and to the long-term average. Blue-winged teal (A. discors) abundance was 5.9 ± 0.3 million birds. This value was 28% greater than last year’s estimate of 4.6 ± 0.2 million birds and 30% above the long-term average. The estimated abundance of green-winged teal (A. crecca; 2.6 ± 0.2 million) was 20% greater than last year and 39% above the long-term average. The estimated number of gadwall (A. strepera; 2.8 ± 0.2 million) was 30% greater than last year and was 67% above the long-term average, and the estimated number of redheads (Aythya americana; 0.9 ± 0.1 million) increased 55% relative to 2005 and was 47% above the long-term average. The canvasback estimate (A. valisineria; 0.7 ± 0.1 million) was 33% higher than last year’s and was 23% higher than the long-term average. The Northern shoveler (Anas clypeata; 3.7 ± 0.2 million) estimate was similar to last year’s, and 69% above the long-term average. Although estimates for most species increased relative to last year and were greater than their long-term averages, American wigeon (A. americana; 2.2 ± 0.1 million) and scaup (Aythya affinis and A. marila combined; 3.2 ± 0.2 million) estimates were unchanged relative to 2005, but remained 17% and 37% below their long-term averages, respectively. The estimate for scaup was a record low for the second consecutive year. The Northern pintail (Anas acuta; 3.4 ± 0.2 million) estimate was 18% below its 1955-2005 average, although this year’s estimate was 32% greater than that of last year. The total May pond estimate (Prairie Canada and U.S. combined) was 6.1 ± 0.2 million ponds. This was ... Text Anas acuta Anas clypeata Northern Shoveler Shoveler University of Nebraska-Lincoln: DigitalCommons@UNL Canada |
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Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
description |
In the Waterfowl Breeding Population and Habitat Survey traditional survey area (strata 1-18, 20-50, and 75-77), the total duck population estimate was 36.2 ± 0.6 [SE] million birds. This was 14% greater than last year’s estimate of 31.7 ± 0.6 million birds and 9% above the 1955-2005 long-term average. Mallard (Anas platyrhynchos) abundance was 7.3 ± 0.2 million birds, which was similar to last year’s estimate of 6.8 ± 0.3 million birds and to the long-term average. Blue-winged teal (A. discors) abundance was 5.9 ± 0.3 million birds. This value was 28% greater than last year’s estimate of 4.6 ± 0.2 million birds and 30% above the long-term average. The estimated abundance of green-winged teal (A. crecca; 2.6 ± 0.2 million) was 20% greater than last year and 39% above the long-term average. The estimated number of gadwall (A. strepera; 2.8 ± 0.2 million) was 30% greater than last year and was 67% above the long-term average, and the estimated number of redheads (Aythya americana; 0.9 ± 0.1 million) increased 55% relative to 2005 and was 47% above the long-term average. The canvasback estimate (A. valisineria; 0.7 ± 0.1 million) was 33% higher than last year’s and was 23% higher than the long-term average. The Northern shoveler (Anas clypeata; 3.7 ± 0.2 million) estimate was similar to last year’s, and 69% above the long-term average. Although estimates for most species increased relative to last year and were greater than their long-term averages, American wigeon (A. americana; 2.2 ± 0.1 million) and scaup (Aythya affinis and A. marila combined; 3.2 ± 0.2 million) estimates were unchanged relative to 2005, but remained 17% and 37% below their long-term averages, respectively. The estimate for scaup was a record low for the second consecutive year. The Northern pintail (Anas acuta; 3.4 ± 0.2 million) estimate was 18% below its 1955-2005 average, although this year’s estimate was 32% greater than that of last year. The total May pond estimate (Prairie Canada and U.S. combined) was 6.1 ± 0.2 million ponds. This was ... |
format |
Text |
author |
Garrettson, Pamela R. Moser, Timothy J. Wilkins, Khristi |
spellingShingle |
Garrettson, Pamela R. Moser, Timothy J. Wilkins, Khristi Waterfowl Population Status, 2006 |
author_facet |
Garrettson, Pamela R. Moser, Timothy J. Wilkins, Khristi |
author_sort |
Garrettson, Pamela R. |
title |
Waterfowl Population Status, 2006 |
title_short |
Waterfowl Population Status, 2006 |
title_full |
Waterfowl Population Status, 2006 |
title_fullStr |
Waterfowl Population Status, 2006 |
title_full_unstemmed |
Waterfowl Population Status, 2006 |
title_sort |
waterfowl population status, 2006 |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2006 |
url |
https://digitalcommons.unl.edu/usfwspubs/421 https://digitalcommons.unl.edu/context/usfwspubs/article/1420/viewcontent/waterfowl_status_2006__revised_28_July.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Anas acuta Anas clypeata Northern Shoveler Shoveler |
genre_facet |
Anas acuta Anas clypeata Northern Shoveler Shoveler |
op_source |
US Fish & Wildlife Publications |
op_relation |
https://digitalcommons.unl.edu/usfwspubs/421 https://digitalcommons.unl.edu/context/usfwspubs/article/1420/viewcontent/waterfowl_status_2006__revised_28_July.pdf |
_version_ |
1782329260028985344 |