DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA?
Numbers of arctic-nesting geese staging in spring in the Central Platte River Valley (CPRV) of southcentral Nebraska increased dramatically from the 1970s to the 1990s, raising concerns that geese may be competing with the mid-continental population of sandhill cranes (Grus canadensis) for waste cor...
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ftunivnebraskali:oai:digitalcommons.unl.edu:nacwgproc-1021 2023-11-12T04:13:06+01:00 DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? Krapu, Gary L. Brandt, David A. COX, ROBERT R., JR. 2005-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/nacwgproc/25 https://digitalcommons.unl.edu/context/nacwgproc/article/1021/viewcontent/Krapu____Do_Arctic_nesting_geese.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/nacwgproc/25 https://digitalcommons.unl.edu/context/nacwgproc/article/1021/viewcontent/Krapu____Do_Arctic_nesting_geese.pdf Proceedings of the North American Crane Workshop Anser albifrons Branta canadensis Canada goose Chen caerulescens Chen rossii competition corn greater whitefronted goose Grus canadensis habitat use lesser snow goose Platte River Ross’ goose sandhill crane soybeans transects Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology text 2005 ftunivnebraskali 2023-10-30T11:14:55Z Numbers of arctic-nesting geese staging in spring in the Central Platte River Valley (CPRV) of southcentral Nebraska increased dramatically from the 1970s to the 1990s, raising concerns that geese may be competing with the mid-continental population of sandhill cranes (Grus canadensis) for waste corn. From late February to mid-April 1998-2001, we measured temporal patterns of cropland use, evaluated habitat preferences, and compared numbers of geese using the primary crane-occupied parts of the CPRV area with numbers of sandhill cranes. Numbers of Canada geese (Branta canadensis), lesser snow geese (Chen caerulescens)/ Ross’ geese (Chen rossii), and greater white-fronted geese (Anser albifrons) peaked an average of 2.3, 2.8, and 1.5 weeks before sandhill cranes, with 90% of goose numbers occurring by 21, 15, and 21 March when averaged over the 4-year period. Numbers of sandhill cranes, on average, were highest on 26 March. All bird groups used corn habitats in greater proportion than expected based on their availability (land area) and used soybean habitats less than expected. Across years, 37.5, 82.5, 53.7, and 44.3% of Canada geese, lesser snow geese/Ross’ geese, greater white-fronted geese, and sandhill cranes, respectively, occurred in quadrants in which cornfields in various post-harvest treatments constituted > 90% of the annually planted cropland. From 1998 through 2001, 0.1, 0, 0, and 2.5% of Canada geese, lesser snow geese/Ross’ geese, greater white-fronted geese, and sandhill cranes, respectively, occurred in quadrants where > 90% of the annually planted cropland was in soybeans. Overall, estimated numbers of geese annually averaged 66, 46, 39, and 62% of estimated numbers of cranes in the CPRV. When viewed in the context that arcticnesting geese rely primarily on waste corn to meet their energy needs in Nebraska and crane capacity to store fat has declined over the past 20 years, these relationships suggest geese were important competitors of sandhill cranes for waste corn in the CPRV area ... Text Arctic Branta canadensis Canada Goose University of Nebraska-Lincoln: DigitalCommons@UNL Arctic Canada |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Anser albifrons Branta canadensis Canada goose Chen caerulescens Chen rossii competition corn greater whitefronted goose Grus canadensis habitat use lesser snow goose Platte River Ross’ goose sandhill crane soybeans transects Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology |
spellingShingle |
Anser albifrons Branta canadensis Canada goose Chen caerulescens Chen rossii competition corn greater whitefronted goose Grus canadensis habitat use lesser snow goose Platte River Ross’ goose sandhill crane soybeans transects Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology Krapu, Gary L. Brandt, David A. COX, ROBERT R., JR. DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
topic_facet |
Anser albifrons Branta canadensis Canada goose Chen caerulescens Chen rossii competition corn greater whitefronted goose Grus canadensis habitat use lesser snow goose Platte River Ross’ goose sandhill crane soybeans transects Animal Sciences Behavior and Ethology Biodiversity Ornithology Population Biology Terrestrial and Aquatic Ecology |
description |
Numbers of arctic-nesting geese staging in spring in the Central Platte River Valley (CPRV) of southcentral Nebraska increased dramatically from the 1970s to the 1990s, raising concerns that geese may be competing with the mid-continental population of sandhill cranes (Grus canadensis) for waste corn. From late February to mid-April 1998-2001, we measured temporal patterns of cropland use, evaluated habitat preferences, and compared numbers of geese using the primary crane-occupied parts of the CPRV area with numbers of sandhill cranes. Numbers of Canada geese (Branta canadensis), lesser snow geese (Chen caerulescens)/ Ross’ geese (Chen rossii), and greater white-fronted geese (Anser albifrons) peaked an average of 2.3, 2.8, and 1.5 weeks before sandhill cranes, with 90% of goose numbers occurring by 21, 15, and 21 March when averaged over the 4-year period. Numbers of sandhill cranes, on average, were highest on 26 March. All bird groups used corn habitats in greater proportion than expected based on their availability (land area) and used soybean habitats less than expected. Across years, 37.5, 82.5, 53.7, and 44.3% of Canada geese, lesser snow geese/Ross’ geese, greater white-fronted geese, and sandhill cranes, respectively, occurred in quadrants in which cornfields in various post-harvest treatments constituted > 90% of the annually planted cropland. From 1998 through 2001, 0.1, 0, 0, and 2.5% of Canada geese, lesser snow geese/Ross’ geese, greater white-fronted geese, and sandhill cranes, respectively, occurred in quadrants where > 90% of the annually planted cropland was in soybeans. Overall, estimated numbers of geese annually averaged 66, 46, 39, and 62% of estimated numbers of cranes in the CPRV. When viewed in the context that arcticnesting geese rely primarily on waste corn to meet their energy needs in Nebraska and crane capacity to store fat has declined over the past 20 years, these relationships suggest geese were important competitors of sandhill cranes for waste corn in the CPRV area ... |
format |
Text |
author |
Krapu, Gary L. Brandt, David A. COX, ROBERT R., JR. |
author_facet |
Krapu, Gary L. Brandt, David A. COX, ROBERT R., JR. |
author_sort |
Krapu, Gary L. |
title |
DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
title_short |
DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
title_full |
DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
title_fullStr |
DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
title_full_unstemmed |
DO ARCTIC-NESTING GEESE COMPETE WITH SANDHILL CRANES FOR WASTE CORN IN THE CENTRAL PLATTE RIVER VALLEY, NEBRASKA? |
title_sort |
do arctic-nesting geese compete with sandhill cranes for waste corn in the central platte river valley, nebraska? |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2005 |
url |
https://digitalcommons.unl.edu/nacwgproc/25 https://digitalcommons.unl.edu/context/nacwgproc/article/1021/viewcontent/Krapu____Do_Arctic_nesting_geese.pdf |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Branta canadensis Canada Goose |
genre_facet |
Arctic Branta canadensis Canada Goose |
op_source |
Proceedings of the North American Crane Workshop |
op_relation |
https://digitalcommons.unl.edu/nacwgproc/25 https://digitalcommons.unl.edu/context/nacwgproc/article/1021/viewcontent/Krapu____Do_Arctic_nesting_geese.pdf |
_version_ |
1782331263298830336 |