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Full-Text Articles in Population Biology
Testing Three Chemicals For Deterring Crop Damage By Cranes, Anne E. Lacy, Jeb A. Barzen, Andrew P. Gossens
Testing Three Chemicals For Deterring Crop Damage By Cranes, Anne E. Lacy, Jeb A. Barzen, Andrew P. Gossens
Proceedings of the North American Crane Workshop
Damage to planted corn seed by cranes has the potential to cause great economic loss in areas where both intersect. In 2000 the International Crane Foundation (ICF) tested limonene (LIM), methyl anthranilate (MA), and 9,10-anthraquinone (AQ) as possible replacements for the insecticides lindane and diazinon that had been used as deterrents to cranes damaging corn seed and seedlings. LIM, MA, and AQ lowered germination rates (down to 85, 90, and 92%, respectively) as compared to a germination rate of 96% in untreated corn. A 1.0% solution of AQ was effective as a crane deterrent, while LIM and MA were not. …
An Updated Distribution Map For The Lower Colorado River Valley Population Of Greater Sandhill Cranes, Blake A. Grisham, Daniel P. Collins, Kammie L. Kruse, Courtenay M. Conring, Jeffrey M. Knetter, Warren C. Conway
An Updated Distribution Map For The Lower Colorado River Valley Population Of Greater Sandhill Cranes, Blake A. Grisham, Daniel P. Collins, Kammie L. Kruse, Courtenay M. Conring, Jeffrey M. Knetter, Warren C. Conway
Proceedings of the North American Crane Workshop
The U.S. Fish and Wildlife Service (USFWS) recognizes 6 migratory populations of sandhill cranes (Grus canadensis) in the United States, 4 of which occur in or west of the Rocky Mountains. Traditionally the Lower Colorado River Valley Population (LCRVP; greater sandhill crane [G. c. tabida]) was thought to be distributed across the Imperial (California) and Lower Colorado River (Arizona) Valleys, southward into Mexico via the Colorado River delta in winter and northeastern Nevada (Elko and White Pine Counties) during summer. Conservation and management concern exists over known distribution based on winter and summer surveys because discrepancies …