Open Access. Powered by Scholars. Published by Universities.®

Natural Resources and Conservation Commons

Open Access. Powered by Scholars. Published by Universities.®

5818 Full-Text Articles 7933 Authors 1140936 Downloads 145 Institutions

All Articles in Natural Resources and Conservation

Faceted Search

5818 full-text articles. Page 6 of 136.

Northern Bobwhite Home Range Sizes And Movements In South Texas, Katherine S. Miller, Fidel Hernández, Leonard A. Brennan, Randy W. DeYoung, X. Ben Wu 2017 Texas A&M University, Kingsville

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 ...


Foraging Behavior Of Northern Bobwhites In Relation To Resource Availability, Ryan S. Miller, William E. Palmer, Shane D. Wellendorf, L. Wes Burger Jr. 2017 Tall Timbers Research Station and Land Conservancy

Foraging Behavior Of Northern Bobwhites In Relation To Resource Availability, Ryan S. Miller, William E. Palmer, Shane D. Wellendorf, L. Wes Burger Jr.

National Quail Symposium Proceedings

Distribution of food resources may influence northern bobwhite (Colinus virginianus) foraging decisions and demographic rates. We tested whether covey movements were sensitive to food availability by spreading sorghum (Sorghum bicolor) every 15 days at 3 rates; high rate (174 L/ha/yr), low rate (44 L/ha/yr), and no feed on 3 sections (~240 ha each) of Tall Timbers Research Station, 2009–2010. We measured sorghum availability spread along a 17 km feeding trail every 5 days. We determined seasonal (1 Nov - 15 Mar) home ranges of radio-tagged coveys (n = 89) and daily movement rates and home ranges of ...


Do Movement Patterns And Habitat Use Differ Between Optimal- And Suboptimal-Sized Northern Bobwhite Coveys?, Christopher K. Williams, Roger Applegate, Anthony R. Ives 2017 University of Delaware

Do Movement Patterns And Habitat Use Differ Between Optimal- And Suboptimal-Sized Northern Bobwhite Coveys?, Christopher K. Williams, Roger Applegate, Anthony R. Ives

National Quail Symposium Proceedings

The group size of social animals and spatial structure of the environment can affect group behavior and movement decisions. Our objective was to investigate movement patterns and habitat use of northern bobwhite coveys (Colinus virginianus) of different size. Using radiotelemetry, we continuously monitored covey group size, daily movement, and habitat use on 12 independent 259-ha study areas in eastern Kansas, USA, during the winters between 1997 and 2000. We used correlated random walk models and fractal dimension models to determine if covey size affected movement characteristics or habitat selection. Intermediate-sized coveys (9–12 individuals, close to optimal covey size) exhibited ...


Effects Of Supplemental Feeding On Breeding Season Home Ranges And Resource Selection Of Northern Bobwhites, Shane D. Wellendorf, William E. Palmer, Allen M. Bostick III 2017 Tall Timbers Research Station and Land Conservancy

Effects Of Supplemental Feeding On Breeding Season Home Ranges And Resource Selection Of Northern Bobwhites, Shane D. Wellendorf, William E. Palmer, Allen M. Bostick Iii

National Quail Symposium Proceedings

Providing supplemental food resources for northern bobwhite (Colinus virginanus) has been a common management practice for decades, but its impact on bobwhite home ranges sizes and space use has been debated. Between 2001 and 2007, we established a 397 ha fed study area on Tall Timbers Research Station, which received grain sorghum biweekly along a 19.5 km feed trail. An adjacent 465 ha area was treated as a control with no supplemental food resources. Radio-tagged wild bobwhites were located 3 – 5 times each week throughout the breeding season and we used these locations to calculate home ranges during early ...


Winter Survival And Habitat Selection By Translocated Northern Bobwhite In The New Jersey Pine Barrens: Preliminary Results, Kaili R. Stevens, Philip M. Coppola, Christopher K. Williams, Theron M. Terhune II, John P. Parke, John Cecil 2017 University of Delaware

Winter Survival And Habitat Selection By Translocated Northern Bobwhite In The New Jersey Pine Barrens: Preliminary Results, Kaili R. Stevens, Philip M. Coppola, Christopher K. Williams, Theron M. Terhune Ii, John P. Parke, John Cecil

National Quail Symposium Proceedings

Northern bobwhite (Colinus virginianus) populations have been experiencing precipitous range-wide declines for more than 50 years; some of the steepest declines occurring in the Mid-Atlantic states. These declines are largely attributed to habitat deterioration from urban sprawl, change in forest management, and intensive farming. This ongoing study aims to evaluate the efficacy of translocating wild bobwhites into the New Jersey Pine Barrens as a means to restore their historic populations. Translocation has proven relatively successful in augmenting bobwhite populations in other regions as well as restoring populations of gallinaceous species. This portion of the study aims to investigate what bobwhites ...


Summer Survival Of Translocated Northern Bobwhite In The New Jersey Pine Barrens: Preliminary Results, Philip M. Coppola, Kaili R. Stevens, Christopher K. Williams, Theron M. Terhune II, John P. Parke, John Cecil 2017 University of Delaware

Summer Survival Of Translocated Northern Bobwhite In The New Jersey Pine Barrens: Preliminary Results, Philip M. Coppola, Kaili R. Stevens, Christopher K. Williams, Theron M. Terhune Ii, John P. Parke, John Cecil

National Quail Symposium Proceedings

Northern bobwhite (Colinus virginianus) have declined precipitously since the 1960s, largely due to habitat deterioration and changes in land use; some of the highest declines have been observed in the Mid-Atlantic States. In other regions, attempts to augment bobwhite populations have been relatively successful using translocation. As part of a long-term restocking program, focal areas for translocation in the mid-Atlantic region were identified by biologists at a National Bobwhite Conservation Initiative (NBCI) workshop. The objective of this project is to evaluate translocation to restore bobwhite populations in the New Jersey Pine Barrens, a focal area designated with a high ranking ...


Parent-Reared Bobwhite Survival In The Texas Rolling Plains, Mark A. Thomas, C. Brad Dabbert 2017 Texas Tech University

Parent-Reared Bobwhite Survival In The Texas Rolling Plains, Mark A. Thomas, C. Brad Dabbert

National Quail Symposium Proceedings

Considerable research has been accomplished over the past 6 decades on the possible reasons for decline in the northern bobwhite (Colinus virginianus), henceforth known as the bobwhite. Restoring or restocking bobwhite populations by augmentation in areas that once held significant numbers has been a focus for many wildlife agencies and managers. Three main methods for augmentation of bobwhites currently exist: release of pen-raised birds, release of juvenile birds reared by Surrogator®, and translocation of wild bobwhites from one area to another. Of these 3 methods, only translocation has accomplished the goal of reestablishing bobwhite populations. Recently a new model developed ...


Testing Northern Bobwhite Reintroduction Techniques In The Northern Edge Of Their Range, William Macaluso, Christopher K. Williams, Theron M. Terhune II 2017 University of Delaware

Testing Northern Bobwhite Reintroduction Techniques In The Northern Edge Of Their Range, William Macaluso, Christopher K. Williams, Theron M. Terhune Ii

National Quail Symposium Proceedings

Pen-rearing young frequently fails as a reintroduction technique in game birds because of low postrelease survival rates in the wild. This may be caused by a combination of poor genetics from domestication, unhealthy birds, birds that do not exhibit wild behavior, or birds that are unfamiliar with their surroundings after hard releases. Recent research suggests that parent-rearing, involving pre- and posthatch imprinting of wild-strain northern bobwhite (Colinus virginianus) chicks by adults, may be a viable option for restoring populations. Imprinting potentially causes reintroduced birds to exhibit more natural behavior. We tested this method against a slightly modified traditional propagation tool ...


The Effect Of Age-At-Release On Survival Of Adoptive Parent-Reared Bobwhite Chicks, Kyle D. Lunsford, Theron M. Terhune II, James A. Martin 2017 University of Georgia

The Effect Of Age-At-Release On Survival Of Adoptive Parent-Reared Bobwhite Chicks, Kyle D. Lunsford, Theron M. Terhune Ii, James A. Martin

National Quail Symposium Proceedings

Translocation of wild northern bobwhites (Colinus virginianus) to restore local populations is a viable conservation tool under some scenarios; however, the supply of wild bobwhites is limited. Bobwhites can be artificially propagated, as an alternative to translocation, using methods that mimic natural brood-rearing. The parent-rearing adoptive process (PRAP) uses wild-strain bobwhite adults to brood and foster newly hatched wild-strain chicks in outdoor aviaries that emulate a natural environment. Adoptive parent-reared bobwhites have higher survival rates than artificially-reared bobwhites but only a single age-of-release (i.e., 6-weeks) has been tested. We tested the effect of age-at-release (3, 6, and 9-weeks) on ...


Experiences In Northern Bobwhite Propagation And Translocation In Ohio, 1978-2012, Mark J. Wiley, Nathan J. Stricker 2017 Ohio Department of Natural Resources

Experiences In Northern Bobwhite Propagation And Translocation In Ohio, 1978-2012, Mark J. Wiley, Nathan J. Stricker

National Quail Symposium Proceedings

Ohio once boasted a population of 7 million northern bobwhites (Colinus virginianus). Catastrophic blizzards during 1976–1977 and 1977–1978 brought winter quail mortalities of 85% and 80%, respectively. Ohio’s bobwhite population was 430,000 in 1978, a 90% reduction from 1976. Remnant quail populations were small, isolated, and incapable of rapid recovery. The Ohio Department of Natural Resources (ODNR) initiated a statewide stocking effort to expedite population growth. The ODNR chose to propagate wild quail in captivity and release first-generation progeny (F1). Throughout 1980–1986, the ODNR released 65,000 F1 quail statewide. The ODNR monitored population response ...


Contributions Of Translocation To Northern Bobwhite Population Recovery, D. Clay Sisson, Theron M. Terhune II, William E. Palmer, Reggie Thackston 2017 Albany Quail Project & Dixie Plantation Research, Albany, GA

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 ...


Connecting Land Ethics And Entrepreneurship Through Experiential Learning In Bobwhite Centric Outdoor Education Program, Greta M. Bowling, Ashleigh P. Tynes, Kelly S. Reyna 2017 University of North Texas

Connecting Land Ethics And Entrepreneurship Through Experiential Learning In Bobwhite Centric Outdoor Education Program, Greta M. Bowling, Ashleigh P. Tynes, Kelly S. Reyna

National Quail Symposium Proceedings

The majority of today’s youth have the ability to utilize consumer technology on a regular basis. This access has exacerbated the disconnect between adolescents and the natural environment by reducing the amount of time spent outdoors. To compound this disconnect, the continued use of traditional classroom settings along with the ‘‘sit-and-get’’ style of facilitation, widens the gap between inert knowledge and applied knowledge. The transformation from theory to practice witnessed in outdoor science, technology, engineering and mathematics (STEM) education has been shown to foster the assimilation and retention of STEM concepts. Therefore, educational institutions have begun to cultivate the ...


Partnering For Quail In South Carolina: A Cooperative Approach Making A Difference, Gary M. Peters, Michael Wayne Hook, Mark S. Garner, Jeffrey M. Magniez, Charles W. McKinney, Jordan S. Nanney 2017 National Wild Turkey Federation

Partnering For Quail In South Carolina: A Cooperative Approach Making A Difference, Gary M. Peters, Michael Wayne Hook, Mark S. Garner, Jeffrey M. Magniez, Charles W. Mckinney, Jordan S. Nanney

National Quail Symposium Proceedings

The National Bobwhite Conservation Initiative (NBCI) identified 15 national quail focal areas throughout the distribution of the northern bobwhite (Colinus virginianus) in June 2016. The first NBCI Focal Area on U.S. Forest Service System land emerged from the existing 16,200-hectare Indian Creek Woodland and Savanna Restoration Initiative (ICWSRI). The ICWSRI is an ongoing collaborative project involving partners from 10 agencies and organizations in the Piedmont of South Carolina. Cooperation among federal and state agencies, non-governmental organizations (NGO), and private landowners, combined with assistance programs such as the Environmental Quality Incentives Program (EQIP) have currently resulted in 2,547 ...


Response Of Grassland Birds To Agricultural Intensity At Different Spatial Scales In Texas, Anna Matthews, M. Clay Green, James Giocomo 2017 Texas State University

Response Of Grassland Birds To Agricultural Intensity At Different Spatial Scales In Texas, Anna Matthews, M. Clay Green, James Giocomo

National Quail Symposium Proceedings

The decline in grassland birds is often associated with habitat loss due to intensity of conversion to agricultural lands and the alterations of natural disturbances. We sought to identify agricultural effects at differing scales that correlate to Texas grassland bird abundance, especially northern bobwhite (Colinus virginianus). Ninety-five roadside routes were surveyed in 20 Texas counties ranging from the Oklahoma border to the coastal plains. We conducted point counts in May and June from 2013 to 2016. To estimate the coarse effects of agriculture on bird abundance at a county level, we used number of cattle and area of farmland used ...


Evaluating Temporal Differences In Land Cover: Implications For Managing Bobwhite At The Landscape Scale In Virginia, Scott D. Klopfer, Daniel A. Cross, Kevin McGuckin, Jay E. Howell, K. Marc Puckett 2017 Virginia Tech

Evaluating Temporal Differences In Land Cover: Implications For Managing Bobwhite At The Landscape Scale In Virginia, Scott D. Klopfer, Daniel A. Cross, Kevin Mcguckin, Jay E. Howell, K. Marc Puckett

National Quail Symposium Proceedings

Northern bobwhite (Colinus virginianus) populations have declined substantially across large portions of their range. A number of factors may be contributing to that decline including disease, predation, pesticides, and habitat loss. Of these, habitat loss has emerged as the primary factor. Habitat loss has occurred at large and small scales. It is relatively easy to evaluate bobwhite habitat at the micro scale, but evaluating habitat change at the landscape scale is difficult. The goal of this pilot study was to evaluate a novel technique using aerial imagery and line transects to evaluate both contemporary and historic landscapes effectively, quantifying the ...


Utility Of Fine Resolution Land Cover Data For Modeling Northern Bobwhite Abundance In The Oaks And Prairies Of Oklahoma, Nicolas Jaffe, Timothy O'Connell, James Giocomo 2017 Oklahoma State University

Utility Of Fine Resolution Land Cover Data For Modeling Northern Bobwhite Abundance In The Oaks And Prairies Of Oklahoma, Nicolas Jaffe, Timothy O'Connell, James Giocomo

National Quail Symposium Proceedings

Management of northern bobwhite (Colinus virginianus) requires landscape-level planning to promote sustainable populations. Limitations in time and resources necessitate the use of large geographic datasets to efficiently evaluate habitat suitability across landscapes. Many such datasets, however, are limited by a lack of detailed and current information relevant to regional management efforts. To meet this need, regional partners recently released the Oklahoma Ecological Systems Mapping (OESM) product, which offers high spatial and thematic resolution vegetation data, current to 2015. We evaluated the utility of the new OESM product for modelling abundance of northern bobwhite and other grassland birds, relating percent cover ...


Impacts Of Habitat Fragmentation On Northern Bobwhites In The Gulf Coast Prairie Landscape Conservation Cooperative, Katherine S. Miller, Leonard A. Brennan, Humberto L. Perotto-Baldivieso, Fidel Hernández, Eric D. Grahmann, Atiye Z. Okay, X. Ben Wu, Markus J. Peterson, Heather Hannusch, Jose Mata, Jaclyn Robles 2017 Texas A&M University, Kingsville

Impacts Of Habitat Fragmentation On Northern Bobwhites In The Gulf Coast Prairie Landscape Conservation Cooperative, Katherine S. Miller, Leonard A. Brennan, Humberto L. Perotto-Baldivieso, Fidel Hernández, Eric D. Grahmann, Atiye Z. Okay, X. Ben Wu, Markus J. Peterson, Heather Hannusch, Jose Mata, Jaclyn Robles

National Quail Symposium Proceedings

The northern bobwhite (Colinus virginianus) has experienced range wide declines over the last several decades, primarily due to loss and fragmentation of habitat. As populations decline, there is a need for understanding factors that impact bobwhite population persistence at local and regional spatial scales. Our goal was to assess changes in land use and their relationship to bobwhite declines at 3 different spatial scales (region, county, and home range) in Texas, Oklahoma, and Louisiana. We used North American Breeding Bird Survey (BBS) data from 1974-2014 to create abundance maps and trends. At the regional scale, we compared bobwhite abundance with ...


Landscape-Scale Geospatial Assessment Of Open Pine And Natural Grassland Condition For Northern Bobwhite In The Gulf Coastal Plains And Ozarks, Toby Gray, Kristine Evans, Todd Jones-Farrand 2017 Mississippi State University

Landscape-Scale Geospatial Assessment Of Open Pine And Natural Grassland Condition For Northern Bobwhite In The Gulf Coastal Plains And Ozarks, Toby Gray, Kristine Evans, Todd Jones-Farrand

National Quail Symposium Proceedings

The National Bobwhite Conservation Initiative 2.0 (NBCI) suggests >13 million acres of pine forests and >600,000 acres of grasslands have high potential for northern bobwhite (Colinus virginianus) conservation in the Southeast. The Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative (LCC) identifies northern bobwhite as one of 15 indicator species for open pine/woodland/savanna and grassland/prairie ecological systems, and describes specific habitat conditions considered desirable as measurable landscape endpoints in each system as part of an Integrated Science Agenda (ISA). The ISA suggests bobwhite are limited by the habitat characteristics associated with basal area and canopy ...


Data-Driven Planning For The Conservation Of Grassland Birds In The Central Hardwoods Bird Conservation Region, Cara J. Joos, Jane A. Fitzgerald, Christopher M. Lituma, James Giocomo, Larry Heggemann 2017 American Bird Conservancy

Data-Driven Planning For The Conservation Of Grassland Birds In The Central Hardwoods Bird Conservation Region, Cara J. Joos, Jane A. Fitzgerald, Christopher M. Lituma, James Giocomo, Larry Heggemann

National Quail Symposium Proceedings

The Central Hardwoods Joint Venture held two workshops in 2006 to delineate bobwhite focus areas across the Central Hardwoods Bird Conservation Region (BCR) for targeting on-the-ground conservation efforts. From 2008 – 2012, we conducted randomized sets of point counts within counties containing bobwhite focal areas to assess the efficacy of that method for monitoring grassland birds within focal areas, and to assess relationships of conservation practices with bird species occupancy and abundance. We collected data on nine species of Partners in Flight priority species, including northern bobwhite (Colinus virginianus). Land cover types within a 200-m buffer of each point were derived ...


A Method For Setting Northern Bobwhite Population And Habitat Objectives For Large Landscape Partnerships, James Giocomo, William Vermillion, Stephen DeMaso, Barry Wilson, Jon Hayes, Kenneth Gee, Jesús Franco, Aimee Roberson, Robert Perez, Jeff Raasch, Bill Bartush, Benjamin Kahler 2017 Oaks and Prairies Joint Venture

A Method For Setting Northern Bobwhite Population And Habitat Objectives For Large Landscape Partnerships, James Giocomo, William Vermillion, Stephen Demaso, Barry Wilson, Jon Hayes, Kenneth Gee, Jesús Franco, Aimee Roberson, Robert Perez, Jeff Raasch, Bill Bartush, Benjamin Kahler

National Quail Symposium Proceedings

Population and habitat objectives are the foundation for many conservation actions. Often objectives set at one scale are difficult to translate to larger or smaller scales. Three bird habitat Joint Ventures, Gulf Coast, Oaks & Prairies, and Rio Grande, working cooperatively with the Gulf Coast Prairie Landscape Conservation Cooperative, have a common objective to stabilize northern bobwhite (Colinus virginianus) populations in four Bird Conservation Regions. We cooperatively developed a method using the North American Breeding Bird Survey trend for several scenarios with different time horizons (10-, 20-, 30-year, or longer), the spring home range size, and the per acre cost of ...


Digital Commons powered by bepress