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Full-Text Articles in Physical Sciences and Mathematics
Northern Bobwhite Home Range Sizes And Movements In South Texas, Katherine S. Miller, Fidel Hernández, Leonard A. Brennan, Randy W. Deyoung, X. Ben Wu
Northern Bobwhite Home Range Sizes And Movements In South Texas, Katherine S. Miller, Fidel Hernández, Leonard A. Brennan, Randy W. Deyoung, X. Ben Wu
National Quail Symposium Proceedings
Northern bobwhites (Colinus virginianus) often have relatively small home ranges (1-km radius); however, occasional long-distance movements also have been recorded, which may help maintain connectivity and genetic diversity within and among populations. We quantified movements of radiocollared northern bobwhites on the King Ranch in South Texas, USA. For each bird we determined core area, home range (fixed kernel), mean movement rate, and maximum distance moved. We compared movements across age, gender, precipitation trends, and plant communities using Mann–Whitney U and Kruskal–Wallis tests. Almost half (44.7%) of the birds moved >400 m (max. distance moved) and 46 (16%) moved …
Contributions Of Translocation To Northern Bobwhite Population Recovery, D. Clay Sisson, Theron M. Terhune Ii, William E. Palmer, Reggie Thackston
Contributions Of Translocation To Northern Bobwhite Population Recovery, D. Clay Sisson, Theron M. Terhune Ii, William E. Palmer, Reggie Thackston
National Quail Symposium Proceedings
The National Bobwhite Conservation Initiative (NBCI 2.0) is a range-wide plan for recovering northern bobwhites (Colinus virginianus; hereafter, bobwhite[s]). Using geospatial analysis informed by expertise from practitioners, the plan categorizes landscapes into restoration potential by weighing biological constraints and opportunities such that targeted habitat management will produce bobwhite population growth. A fundamental assumption of the NBCI 2.0 for achieving recovery goals is that bobwhite source populations currently exist on the landscape at densities necessary to (re)colonize newly established or improved habitat. However, we have found that these source populations can be very low or non-existent, especially in northern …
Predicting Northern Bobwhite Habitat In Semiarid Rangeland Using Landsat Imagery, Jeffrey G. Whitt, Kelly S. Reyna
Predicting Northern Bobwhite Habitat In Semiarid Rangeland Using Landsat Imagery, Jeffrey G. Whitt, Kelly S. Reyna
National Quail Symposium Proceedings
Multiple studies have attempted to model northern bobwhite (Colinus virginianus) distribution using classified remotely sensed imagery in combination with pattern recognition software. These models tend to be more accurate in humid subtropical regions. To identify bobwhite habitat in subhumid and semiarid rangeland, we performed our own classification on 4 LANDSAT scenes of Clay County, Texas, from July and December 2015. Stands of mature little bluestem (Schizachyrium scoparium) provide excellent bobwhite nesting cover and could be identified using LANDSAT imagery. Habitat was scored from 0 to 1.0 based on estimated range health, presence of little bluestem, and …
A Focused Habitat Approach For Northern Bobwhite Restoration In Kentucky, John J. Morgan, John M. Yeiser, Danna L. Baxley, Gary Sprandel, Ben A. Robinson, Keith Wethington
A Focused Habitat Approach For Northern Bobwhite Restoration In Kentucky, John J. Morgan, John M. Yeiser, Danna L. Baxley, Gary Sprandel, Ben A. Robinson, Keith Wethington
National Quail Symposium Proceedings
The Kentucky Department of Fish and Wildlife Resources has measured northern bobwhite (Colinus virginianus) population trends since 1960. During that span, northern bobwhite steadily declined because clean agriculture, fescue-sod, plant succession, and development eroded habitat suitability. Multiple efforts have failed with regard to restoring northern bobwhite numbers. Over 3.5 million northern bobwhite were released by the Department over a three decade period. Habitat efforts on private lands were deployed for over 20 years with mixed results. Support for the habitat restoration efforts waned. In 2008, the Department unveiled a new strategy centered on restoring concentrated habitat in focal …