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Full-Text Articles in Life Sciences
Antipredator Training For Captive-Reared Mississippi Sandhill Crane Chicks, Jerome J. Howard, Richard A. Dunn, Scott G. Hereford
Antipredator Training For Captive-Reared Mississippi Sandhill Crane Chicks, Jerome J. Howard, Richard A. Dunn, Scott G. Hereford
Proceedings of the North American Crane Workshop
Captive-bred Mississippi sandhill cranes (Grus canadensis pulla) suffer from low recruitment in nature, and poor nest defense ability may significantly contribute to the problem. We hypothesized that a lack of opportunities for social learning by young birds prior to release inhibits the development of appropriate nest defense in later life. Here we report the results of preliminary experiments on conditioning of antipredator behavior in young birds prior to release using predator models. Observing agonistic displays by either costumed technicians or parent birds toward a model raccoon (Procyon lotor) promoted aggressive displays to a wild raccoon, but …
Nesting Activity Budgets And Antipredator Behaviors Of Mississippi Sandhill Cranes, Jerome J. Howard, Rose Butler Wall, Lauren Billodeaux Mowbray, Scott G. Hereford
Nesting Activity Budgets And Antipredator Behaviors Of Mississippi Sandhill Cranes, Jerome J. Howard, Rose Butler Wall, Lauren Billodeaux Mowbray, Scott G. Hereford
Proceedings of the North American Crane Workshop
We studied activity budgets and antipredator behaviors of Mississippi sandhill cranes (Grus canadensis pulla) to determine if parental behavior influenced nest outcomes. We used infrared motion-activated cameras to capture behavioral sequences from 21 nests over a 2-year period. Overall activity budgets were similar among crane pairs regardless of nest outcome. Specific activity patterns did predict nest outcomes; pairs at unsuccessful nests spent more time away from the nest and more time manipulating nest contents than successful pairs, while pairs at nests that were lost to predation cooperated poorly and started the nest a month later on average than …
Nest-Site Selection In The Eastern Box Turtle, Terrapene Carolina Carolina, In Illinois [Abstract], Beth A. Flitz, Stephen J. Mullin
Nest-Site Selection In The Eastern Box Turtle, Terrapene Carolina Carolina, In Illinois [Abstract], Beth A. Flitz, Stephen J. Mullin
Faculty Publications
No abstract provided.
Birds Of The Lake Ogallala State Recreation Area, Timothy M. Bergin
Birds Of The Lake Ogallala State Recreation Area, Timothy M. Bergin
Nebraska Bird Review
The Lake Ogallala State Recreation Area (LOSRA) is located immediately downstream from Lake McConaughy, which was formed by the construction of Kingsley Dam across the North Platte River, and includes riparian woodland, shrubland, grassland, marsh, sandbeach, rivers, ponds, and lakes. Birds were surveyed in LOSRA from 1988 to 1992 and censused in the southwest campground of LOSRA from late May to mid-July during the 1991 and 1992 breeding seasons. Seventy-five bird species (56 terrestrial and 19 aquatic) were observed, including several hybridizing species. Thirty-one terrestrial species inhabited the southwest campground, but only 60% of these were counted during biweekly censuses; …