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Possible Competition Between Waterfowl And Sandhill Cranes At Hiwassee Wildlife Refuge, Tennessee, David A. Aborn
Possible Competition Between Waterfowl And Sandhill Cranes At Hiwassee Wildlife Refuge, Tennessee, David A. Aborn
Proceedings of the North American Crane Workshop
As a result of crop planting for waterfowl, numbers of eastern greater sandhill cranes (Grus canadensis tabida) staging and overwintering at the Hiwassee Wildlife Refuge in eastern Tennessee have sharply increased over the last 30-40 years. Peak numbers of wintering cranes have reached 14,000, and this large increase in crane numbers raises the possibility that they may be competing with waterfowl for food and space. I examined broad-scale changes in waterfowl numbers using Christmas Bird Count data, as well as small-scale changes using observations of waterfowl numbers and locations in relation to cranes on individual days. Preliminary results …
Summary Of Sandhill Crane Sport Harvest In Canada 1975-2006, Adrianna C. Araya, Kammie L. Kruse, Keith D. Warner
Summary Of Sandhill Crane Sport Harvest In Canada 1975-2006, Adrianna C. Araya, Kammie L. Kruse, Keith D. Warner
Proceedings of the North American Crane Workshop
Knowledge of harvest in all areas where the mid-continent population (MCP) of sandhill cranes (Grus canadensis) occurs is critical to managing the population in a sustainable manner. The harvest of MCP in the U.S. has been well documented; however, the harvest in Canada has received less attention. The Canadian Wildlife Service initiated a National Harvest Survey program in 1967, but all sampling variables were not directly comparable until 1975. In this paper, we summarize crane harvest in Canada during the 1975-2006 hunting seasons for Saskatchewan and Manitoba, the 2 provinces with significant sport hunting harvest of sandhill cranes. …
Assessing Sandhill Crane Flight Alterations To Power Lines In Southcentral Wisconsin, Kimberly H. Ness, Anne E. Lacy
Assessing Sandhill Crane Flight Alterations To Power Lines In Southcentral Wisconsin, Kimberly H. Ness, Anne E. Lacy
Proceedings of the North American Crane Workshop
We examined how weather and power line type affected abrupt flight alterations of sandhill cranes (Grus canadensis tabida) near electric lines in south-central Wisconsin at 4 U.S. Fish and Wildlife Service fall crane roost count sites near the Wisconsin River in Adams, Columbia, and Iowa counties between September and November 2007. We selected 4 distribution (10-12 m tall, <50 kV) and 2 transmission lines (>20 m tall, >110 kV) in high crane density areas near corn fields within 1.6 km of either the Wisconsin River or local roosting wetland. We recorded frequencies of 3 types of abrupt flight alterations near power lines across 1-2 …
Summary Of Sandhill Crane Hunting Seasons In Kansas 1993-2007, David E. Sharp, Helen M. Hands, James A. Dubovsky, John E. Cornely
Summary Of Sandhill Crane Hunting Seasons In Kansas 1993-2007, David E. Sharp, Helen M. Hands, James A. Dubovsky, John E. Cornely
Proceedings of the North American Crane Workshop
The mid-continent population of sandhill cranes (Grus canadensis) is the largest population of cranes in North America. Hunting seasons for sandhill cranes were closed in 1916 and gradually resumed in Mexico (1940), the United States (1961), and Canada (1964). As knowledge of the biology of cranes and experience with hunting seasons increased, areas in which hunting was permitted expanded, and by 1992 all but 2 states (Nebraska and Kansas) in the U.S. portion of the Central Flyway conducted sport hunting seasons for this population. In 1993 Kansas resumed hunting and initial seasons were limited to specified geographic areas of …
Behavior And Habitat Use Of Greater Sandhill Cranes Wintering In East Tennessee, David A. Aborn
Behavior And Habitat Use Of Greater Sandhill Cranes Wintering In East Tennessee, David A. Aborn
Proceedings of the North American Crane Workshop
An increase of eastern greater sandhill cranes (Grus canadensis tabida) stopping over and wintering at the Hiwassee Wildlife Refuge in east Tennessee has led to overcrowding at the refuge, resulting in crane use of private property. Proper management is needed to prevent the cranes from becoming a nuisance, increase the suitability of the refuge for waterfowl, and reduce the likelihood of a disease outbreak. Observations of cranes revealed that cranes spent 83% of their time foraging, alert, or preening. Sandhill cranes foraged primarily in agricultural and grassy fields, whereas mudflats and shallow water were used for preening and …
Study Of Environmental Variables And Connectivity Of Northern Mexico For Cranes: Conservation Implications, Edgar Gustavo López-Saut, Ricardo Rodriguez Estrella, Felipe Chavez-Ramirez
Study Of Environmental Variables And Connectivity Of Northern Mexico For Cranes: Conservation Implications, Edgar Gustavo López-Saut, Ricardo Rodriguez Estrella, Felipe Chavez-Ramirez
Proceedings of the North American Crane Workshop
Wetlands are one of the most important ecosystems for biodiversity and as a resource for humans. Humans depend on wetlands for water and food, but with expansion of urban cores, water overexploitation, and the increase of croplands, wetlands are at risk. The Chihuahuan desert is an ecoregion important for the economy and development of Mexico. Although there are many temporal wetlands that support many migratory birds, water in some desert landscapes is being overexploited due to development. This leads to the desiccation of wetlands important for migratory birds such as cranes. The cranes as a group are associated with grasslands …