Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Biodiversity
Results Of The Utah-Arizona Stage-By-Stage Migrations, David H. Ellis, Carolee Mellon, Matthew Kinloch, Tressa Dolbeare, Damien P. Ossi
Results Of The Utah-Arizona Stage-By-Stage Migrations, David H. Ellis, Carolee Mellon, Matthew Kinloch, Tressa Dolbeare, Damien P. Ossi
Proceedings of the North American Crane Workshop
In an effort to find a safer means of teaching cranes new migration routes, each year (in 1998 and 1999) we transported a group of greater sandhill cranes (Grus canadensis tabida) stage-by-stage, in a horse trailer, with stops for brief flights at about 30-km intervals, along a 1300-1400-km fall migration route from Fish Springs National Wildlife Refuge (Fish Springs) in west-central Utah to the vicinity of Gila Bend, Arizona. Thereafter, we released them into a wild flock of sandhill cranes. All stage-by-stage birds were hand-reared with both a plastic crane decoy (to encourage them to roost in water) …
Minimum Survival Rates For Mississippi Sandhill Cranes: A Comparison Of Hand-Rearing And Parent-Rearing, David H. Ellis, George F. Gee, Glenn H. Olsen, Scott G. Hereford, Jane M. Nicolich, Nancy J. Thomas, Meenakshi Nagendran
Minimum Survival Rates For Mississippi Sandhill Cranes: A Comparison Of Hand-Rearing And Parent-Rearing, David H. Ellis, George F. Gee, Glenn H. Olsen, Scott G. Hereford, Jane M. Nicolich, Nancy J. Thomas, Meenakshi Nagendran
Proceedings of the North American Crane Workshop
Hand-reared (56) and parent-reared (76) juvenile Mississippi sandhill cranes (Grus canadensis pulla) were produced at the Patuxent Wildlife Research Center (patuxent), Laurel, Maryland over a 4-year period (1989-92) and released at the Mississippi Sandhill Crane National Wildlife Refuge (Refuge), Gautier, Mississippi in a controlled experiment. Hand-reared survival rates proved higher than for parent-reared survival for each time category: 6 months, 86% versus 75%; 1 year, 77% versus 68%; 2 years, 66% versus 53%; 3 years, 55% versus 43%: partial data for fourth and fifth years were 57% versus 31 % and 48% versus 37%.
The One-8y-One Method For Releasing Cranes, David H. Ellis, Daniel P. Mummert, Richard P. Urbanek, Matthew Kinloch, Carolee Mellon, Tressa Dolbeare, Damien P. Ossi
The One-8y-One Method For Releasing Cranes, David H. Ellis, Daniel P. Mummert, Richard P. Urbanek, Matthew Kinloch, Carolee Mellon, Tressa Dolbeare, Damien P. Ossi
Proceedings of the North American Crane Workshop
Although the trend for the past 2 decades has been toward releasing naive groups of juveniles after a lengthy acclimation period, in 5 separate releases (1996-2000) we tested the idea that naive juvenile greater sandhill cranes (Grus canadensis tabida) would survive better if released singly into a wild flock of predator-wary birds than if left as a group, inexperienced at foraging and ill prepared to avoiding predators. We released 3 groups of hand-reared juveniles (n = 12 [1996]; n = 8 [1998], n = 12 [1999]) into a wild flock of sandhill cranes (ca 300 birds) on wintering …
Results Of The Second (1996) Experiment To Lead Cranes On Migration Behind A Motorized Ground Vehicle, David H. Ellis, Brian Clauss, Tsuyoshi Watanabe, R. Curt Mykut, Matt Shawkey, Daniel P. Mummert, Daniel T. Sprague, Catherine H. Ellis, F. Benjamin Trahan
Results Of The Second (1996) Experiment To Lead Cranes On Migration Behind A Motorized Ground Vehicle, David H. Ellis, Brian Clauss, Tsuyoshi Watanabe, R. Curt Mykut, Matt Shawkey, Daniel P. Mummert, Daniel T. Sprague, Catherine H. Ellis, F. Benjamin Trahan
Proceedings of the North American Crane Workshop
Fourteen greater sandhill cranes (Grus canadensis tabida) were trained to follow a specially-equipped truck and 12 were led along a ca 620-Ian route from Camp Navajo in northern Arizona to the Buenos Aires National Wildlife Refuge near the ArizonalMexico border. Ten survived the trek, 380 Ian of which were flown, although only a few cranes flew every stage of the route. Major problems during the migration were powerline collisions (ca 15, 2 fatal) and overheating (when air temperatures exceeded ca 25° C). The tenacity of the cranes in following both in 1995 and 1996 under unfavorable conditions (e.g., …
Fate Of The Survivors Of The 1995 And 1996 Arizona Trucking Migrations Of Costume-Reared Greater Sandhill Cranes, Daniel P. Mummert, David H. Ellis, Carol L. Chambers
Fate Of The Survivors Of The 1995 And 1996 Arizona Trucking Migrations Of Costume-Reared Greater Sandhill Cranes, Daniel P. Mummert, David H. Ellis, Carol L. Chambers
Proceedings of the North American Crane Workshop
In 1995 and 1996, we trained 2 groups of costume-reared greater sandhill cranes (Grus canadensis tabida) (10 in 1995, 14 in 1996) to follow a truck. Thereafter we led 10 in 1995 and 12 in 1996 from Garland Prairie, northern Arizona, to the Buenos Aires National Wildlife Refuge, southern Arizona (ca. 620 km). These techniques were being developed to create additional, disjunct populations of the whooping crane (G. americana). The cranes taught the migration route in 1995 did not follow the desired migration route in 1996 but did travel north 140 km along the route in …