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Articles 31 - 60 of 122
Full-Text Articles in Natural Resources and Conservation
A Monitoring Program To Evaluate The Coastal Grassland Restoration Incentive Program, Stephen J. Demaso, William G. Vermillion, Mark W. Parr
A Monitoring Program To Evaluate The Coastal Grassland Restoration Incentive Program, Stephen J. Demaso, William G. Vermillion, Mark W. Parr
National Quail Symposium Proceedings
The Gulf Coast Joint Venture (GCJV) is a regionally based, biologically driven, landscape-oriented volunteer partnership of private, state, and federal conservation organizations dedicated to the delivery of habitat important to priority bird species. The GCJV partnership’s Coastal Grassland Restoration Incentive Program (C-GRIP) provides financial incentives to private landowners for conducting habitat treatments that address the greatest limiting factor(s) to providing suitable grassland bird habitat on their property. The C-GRIP program is a way for the GCJV to deliver bird habitat to meet planning objectives for grassland birds, including northern bobwhite (Colinus virginianus). Our monitoring objective is to evaluate …
Landowner Cooperative Key To Success In The Bee Ridge Quail Focus Area, John A. Pinkowski, Beth A. Emmerich, William T. White
Landowner Cooperative Key To Success In The Bee Ridge Quail Focus Area, John A. Pinkowski, Beth A. Emmerich, William T. White
National Quail Symposium Proceedings
The Missouri Department of Conservation (MDC) began establishing Quail Focus Areas (QFAs) on private lands in 2004. The goal of QFAs is to increase and expand quail habitat management efforts around a core area. Because most (93%) of the landscape of Missouri, USA is in private ownership, habitat improvement programs on private lands have greater potential to impact quail populations than on public lands alone. A motivated group of landowners led the charge to begin habitat improvement efforts in the Bee Ridge QFA. This group was instrumental in starting earlier monitoring efforts to determine whether habitat improvements were leading to …
Habitat Works: How Partnerships And Habitat Improvement Have Restored Quail Populations In The 2c Quail Focus Area, E. Lee Metcalf, Beth A. Emmerich, William T. White
Habitat Works: How Partnerships And Habitat Improvement Have Restored Quail Populations In The 2c Quail Focus Area, E. Lee Metcalf, Beth A. Emmerich, William T. White
National Quail Symposium Proceedings
The Missouri Department of Conservation (MDC) began establishing Quail Focus Areas (QFAs) on private lands in 2004. The goal of QFAs was to bring groups of landowners together to manage bobwhite habitat on a larger scale in a targeted landscape. Through a variety of state, federal, and other partnership programs, habitat improvement efforts have resulted in large increases in northern bobwhite (Colinus virginianus; hereafter, bobwhite) numbers in the 2C QFA. In spring 2013, MDC staff and Quail Forever biologists began monitoring bobwhite and songbirds in a portion of the 2C QFA in Carroll County, Missouri, USA and in …
Adaptive Management Facilitates Increase In Northern Bobwhite Populations, James A. Martin, Clay Sisson, Justin Rectenwald, Paige Howell
Adaptive Management Facilitates Increase In Northern Bobwhite Populations, James A. Martin, Clay Sisson, Justin Rectenwald, Paige Howell
National Quail Symposium Proceedings
Adaptive resource management (ARM) is an approach to managing that allows decision makers to learn about a system and subsequently change management actions based on new information about system processes (i.e., adapt) to better meet fundamental objectives. This is not to be confused with changing management actions when the state of the system changes. For example, changing a harvest regulation when populations decline is not ARM. This dynamic decision making may be fortuitously optimal, but if the effect of harvest is uncertain then changing regulations may be suboptimal—for example, weather may have caused the decline. Adaptive resource management can be …
Northern Bobwhite Demographics And Resource Selection Are Explained By Prescribed Fire With Grazing And Woody Cover In Southwest Missouri, Frank R. Thompson Iii, Mitch D. Weegman, Emily A. Sinnott, Alisha R. Mosloff, Kyle R. Hedges, Frank L. Loncarich, Thomas R. Thompson, Nicholas C. Burrell, Stasia Whitaker, David E. Hoover
Northern Bobwhite Demographics And Resource Selection Are Explained By Prescribed Fire With Grazing And Woody Cover In Southwest Missouri, Frank R. Thompson Iii, Mitch D. Weegman, Emily A. Sinnott, Alisha R. Mosloff, Kyle R. Hedges, Frank L. Loncarich, Thomas R. Thompson, Nicholas C. Burrell, Stasia Whitaker, David E. Hoover
National Quail Symposium Proceedings
Understanding the effects of landscape management on northern bobwhite (Colinus virginianus; hereafter, bobwhite) population growth requires information about seasonal- and stage-specific demographic parameters linked across the annual cycle. We review results to date from 3 years (2016–2018) of an intensive field study evaluating drivers of bobwhite population dynamics and resource selection during the breeding and non-breeding season in southwest Missouri, USA using data from adult and juvenile bobwhite fitted with radio-transmitters. Land cover of our study sites ranged from large blocks of native grasslands maintained with prescribed fire and grazing to more traditional management resulting in small patches …
Strength In Numbers: Avian Influenza A Virus Transmission To Poultry From A Flocking Passerine, J. Jeffrey Root, Jeremy W. Ellis, Susan A. Shriner
Strength In Numbers: Avian Influenza A Virus Transmission To Poultry From A Flocking Passerine, J. Jeffrey Root, Jeremy W. Ellis, Susan A. Shriner
United States Department of Agriculture Wildlife Services: Staff Publications
The effects of flock size of European starlings (Sturnus vulgaris) was experimentally manipulated to assess the potential of influenza A virus (IAV; H4N6) transmission from a flocking passerine to bobwhite quail (Colinus virginianus) through shared food and water resources to mimic starling intrusions into free-range and backyard poultry operations. Of the three starling flock sizes tested (n = 30, n = 20 and n = 10), all successfully transmitted the virus to all or most of the quail in each animal room (6/6, 6/6 and 5/6) by the end of the experimental period, as determined by seroconversion and/or viral RNAshedding. …
The Importance Of Regional And Landscape Context And Climate Change To Northern Bobwhite Management, Frank R. Thompson Iii
The Importance Of Regional And Landscape Context And Climate Change To Northern Bobwhite Management, Frank R. Thompson Iii
National Quail Symposium Proceedings
Long-term declines in northern bobwhite (Colinus virginianus) in the United States are presumably due to decades of habitat loss or degradation at a national scale. Food and fiber production characterized by replacement of open woodlands and savannas by dense forest, intensification of agriculture, and conversion of native grasslands to nonnative pastures have degraded habitats for most grassland and early successional birds. Declines in bobwhite and associated species occurred within this context at a scale that has overwhelmed wildlife management efforts. However, with understanding of scale and context, managers could sustain these species in some future landscapes. Increasing urbanization …
Effect Of Meso-Mammal Nest Predator Activity On Northern Bobwhite Nest Success, Alexander L. Jackson, William E. Palmer, D. Clay Sisson, Theron M. Terhune Ii, James A. Martin
Effect Of Meso-Mammal Nest Predator Activity On Northern Bobwhite Nest Success, Alexander L. Jackson, William E. Palmer, D. Clay Sisson, Theron M. Terhune Ii, James A. Martin
National Quail Symposium Proceedings
Perceived changes in predator-prey dynamics along with documented declines of northern bobwhite (Colinus virginianus) have created a renewed interest from biologists and managers about the role meso-mammals play in shaping bobwhite population trajectories. As part of a larger effort to understand this predator-prey relationship, we evaluated meso-mammal activity on sites where bobwhite demographic data was simultaneously being collected via radio- telemetry. During 1999–2006 we conducted 66 meso-mammal activity surveys using scent stations on 16 sites in 3 southeastern states (Florida, Georgia, and Alabama). We calculated an index of meso-mammal activity (PI), for each site, as the average number …
Habitat, Climate, And Raptors As Factors In The Northern Bobwhite Decline: A Multi-Scale Analysis, John T. Edwards, Fidel Hernández, David B. Wester, Leonard A. Brennan, Chad Parent, Robert Perez
Habitat, Climate, And Raptors As Factors In The Northern Bobwhite Decline: A Multi-Scale Analysis, John T. Edwards, Fidel Hernández, David B. Wester, Leonard A. Brennan, Chad Parent, Robert Perez
National Quail Symposium Proceedings
Landscape-level processes such as habitat loss and fragmentation are primarily responsible for the declines in northern bobwhite (Colinus virginianus). These landscape processes generally occur at a scale beyond that of traditional quail studies and may involve not only habitat loss and fragmentation but also broad-scale changes in climate trends and predation risk. However, reductions in usable space and changes in habitat configuration at smaller scales may also reduce population viability. It is therefore imperative to study relationships to bobwhite populations at multiple scales. The objective of our research is to quantify to what extent habitat loss and fragmentation, …
Landscape Features Affecting Northern Bobwhite Predator-Specific Nest Failures In Southeastern Usa, Susan N. Ellis-Felege, Shannon E. Albeke, Nathan P. Nibbelink, Michael J. Conroy, D. Clay Sisson, William E. Palmer, John P. Carroll
Landscape Features Affecting Northern Bobwhite Predator-Specific Nest Failures In Southeastern Usa, Susan N. Ellis-Felege, Shannon E. Albeke, Nathan P. Nibbelink, Michael J. Conroy, D. Clay Sisson, William E. Palmer, John P. Carroll
National Quail Symposium Proceedings
Nest predation is a critical component in avian productivity and typically is the leading cause of nest failure for most birds. Several landscape features are thought to drive the behavioral interaction between northern bobwhite (Colinus virginianus; e.g., nest placement) and their predators (e.g., search methods for food acquisition). In order to understand habitat characteristics influencing predation, we studied bobwhite nests using 24-hour near-infrared video cameras. We monitored 675 bobwhite nests with cameras on 3 properties in northern Florida and southern Georgia, USA, during 2000–2006. To test the association between nest failures and specific failure causes with landscape structure, …
Impacts Of Red Imported Fire Ants On Northern Bobwhite Nest Survival, Angelina M. Haines, D. Clay Sisson, Robert A. Gitzen, Christopher A. Lepczyk, William E. Palmer, Theron M. Terhune Ii
Impacts Of Red Imported Fire Ants On Northern Bobwhite Nest Survival, Angelina M. Haines, D. Clay Sisson, Robert A. Gitzen, Christopher A. Lepczyk, William E. Palmer, Theron M. Terhune Ii
National Quail Symposium Proceedings
Invasive species are a large management issue because of extensive environmental and economic damage. The red imported fire ant (RIFA, Solenopsis invicta) is an invasive species of growing concern in wildlife management in the United States because of its increasing distribution, difficulty to suppress, and aggressive predation on native invertebrates, herpetofauna, birds, and small mammals. Managers of the northern bobwhite (Colinus virginianus) have questioned the direct impact of RIFA on bobwhite nest success, particularly the factors that might influence the level of nest predation. We hypothesized that RIFA predation on northern bobwhite would vary by location and …
Use Of Extinguish Plus™ To Reduce Red Imported Fire Ants And Increase Northern Bobwhite Abundance, James W. Caldwell, Nova J. Silvy, Roel R. Lopez, Fred E. Smeins, Michael E. Morrow, Brian L. Pierce, Israel D. Parker
Use Of Extinguish Plus™ To Reduce Red Imported Fire Ants And Increase Northern Bobwhite Abundance, James W. Caldwell, Nova J. Silvy, Roel R. Lopez, Fred E. Smeins, Michael E. Morrow, Brian L. Pierce, Israel D. Parker
National Quail Symposium Proceedings
Populations of northern bobwhite (Colinus virginianus) have been declining throughout Texas since at least the 1970s. The red imported fire ant (RIFA, Solenopsis invicta) was introduced from South America and reached Texas by the 1950s. Previous studies have documented the negative effects of RIFA on northern bobwhite populations through both direct predation and indirect reduction of small invertebrates. In 2013, 2014, and 2015, large areas (1,490 ha in 2013 and 2,380 ha in 2014 and 2015) of the 3,744-ha portion of the Attwater Prairie Chicken National Wildlife Refuge (APCNWR) in Colorado County, Texas, were aerially treated with …
A Brief History Of Insecticides And Quail, Amanda Gobeli, Caitlin Thompson, Kelly S. Reyna
A Brief History Of Insecticides And Quail, Amanda Gobeli, Caitlin Thompson, Kelly S. Reyna
National Quail Symposium Proceedings
Humans have employed chemical methods of pest control since the earliest days of agriculture and these substances have affected native wildlife, including quail and other gamebirds (Galliformes), to varying degrees. Several quail species have experienced steep population declines over the past several decades and insecticides may be a contributing factor. Quail are also known to use agricultural habitat for nesting and foraging purposes and are therefore likely to encounter elevated levels of insecticidal chemicals in the soil, vegetation, and insect biomass in that environment. The first commercially available insecticides appeared in the early 1900s with the introduction of arsenic-based compounds …
Free-Ranging, Northern Bobwhite Submissions To The Southeastern Cooperative Wildlife Disease Study (1982-2015), Roger Applegate, Richard W. Gerhold Jr., Heather Fenton, John R. Fischer
Free-Ranging, Northern Bobwhite Submissions To The Southeastern Cooperative Wildlife Disease Study (1982-2015), Roger Applegate, Richard W. Gerhold Jr., Heather Fenton, John R. Fischer
National Quail Symposium Proceedings
There are concerns regarding population declines of northern bobwhite (Colinus virginianus) over the past 4 decades (Palmer et al. 2011). Infectious and noninfectious diseases are among the limiting factors that potentially influence bobwhite demographics (Applegate 2014). The last update of diseases of bobwhite was presented at the Second National Quail Symposium in 1982 (Davidson et al. 1982). Since that report, scientists at the Southeastern Cooperative Wildlife Disease Study (SCWDS) have examined 133 wild bobwhites from 13 states. The SCWDS is a cooperative between states and the University of Georgia and obtains cases from the cooperating states. In this …
Geographic Survey Of Oxyspirura Petrowi Among Wild Northern Bobwhites In The United States, Bradley Kubečka, Andrea Bruno, Dale Rollins
Geographic Survey Of Oxyspirura Petrowi Among Wild Northern Bobwhites In The United States, Bradley Kubečka, Andrea Bruno, Dale Rollins
National Quail Symposium Proceedings
Eyeworms (Oxyspirura petrowi) are potentially associated with northern bobwhite (Colinus virginianus) declines. We examined hunter-donated bobwhites from the 2013–2015 hunting seasons in 9 states to document infection prevalence (% of bobwhites [of total n]) and intensity (mean no. of eyeworms ± SE). Four states harbored infected bobwhites: Texas (59.1% [n = 110], 15.6 ± 2.1), Oklahoma (52.1% [n = 121], 6.9 ± 1.2), Virginia (14.8% [n = 27], 2.5 ± 1.0), and Alabama (1.6% [n = 61], 2.0). Prevalence and intensity of eyeworms in the Texas Rolling Plains were greater ( …
Genetic Structure Of Northern Bobwhite In The Rolling Plains, Peter E. Schlichting, Melanie Murphy, Byron R. Buckley, C. Brad Dabbert
Genetic Structure Of Northern Bobwhite In The Rolling Plains, Peter E. Schlichting, Melanie Murphy, Byron R. Buckley, C. Brad Dabbert
National Quail Symposium Proceedings
The recent declines in northern bobwhite quail populations in the Rolling Plains of Texas have raised concerns about habitat connectivity and gene flow. In addition, bobwhites have several life history traits that make them likely to display high levels of spatial genetic structure including low survival, high reproductive rates, and low dispersal rates. To determine if populations within the Rolling Plains have limited gene flow, we investigated the genetic structure of northern bobwhites within the ecoregion. Blood samples were collected at 16 ranches, encompassing 22 million acres, between February 2010 and April 2013. Bobwhites were also samples at a ranch …
Comparing The Accuracy Of Egg Candling And Egg Flotation To Estimate The Hatching Date Of Northern Bobwhite Clutches, Byron R. Buckley, Alicia K. Andes, C. Brad Dabbert
Comparing The Accuracy Of Egg Candling And Egg Flotation To Estimate The Hatching Date Of Northern Bobwhite Clutches, Byron R. Buckley, Alicia K. Andes, C. Brad Dabbert
National Quail Symposium Proceedings
Floating and candling avian eggs to assess hatch dates has been used successfully to estimate hatch dates for wild bird clutches for decades. However, there is a dearth of information assessing the accuracy of these techniques to estimate northern bobwhite (Colinus virginianus) hatch dates. We captured and fitted a hen bobwhites with very high frequency transmitters during January and February of 2011–2012. We monitored each bird twice weekly until nesting was initiated. We searched for the nest while the hen was away from the nest (i.e., feeding) to reduce potential abandonment. We used egg floatation and egg candling …
Using First Passage Time Analysis To Identify Foraging Patterns Of The Northern Bobwhite, Diana J. Mcgrath, Theron M. Terhune Ii, James A. Martin
Using First Passage Time Analysis To Identify Foraging Patterns Of The Northern Bobwhite, Diana J. Mcgrath, Theron M. Terhune Ii, James A. Martin
National Quail Symposium Proceedings
Patterns in movement data can reveal important information relating environmental variables to behavioral mechanisms. First passage time analysis (hereafter; FPT) can be used to quantify the spatial and temporal variation in movements by identifying areas of restricted search behavior based on measuring residence time in an area. It is applicable in studies of foraging ecology and habitat selection because it can empirically quantify behavioral decisions without any a priori assumptions of habitat availability. Furthermore, FPT analysis is simple to implement and interpret; however, the technique has yet to be applied to the northern bobwhite (Colinus virginianus, hereafter bobwhite) …
Effect Of Temperature And Wind On Metabolism Of Northern Bobwhite In Winter, L. Wes Burger Jr., Thomas V. Dailey, Mark R. Ryan, Eric Kurzejeski
Effect Of Temperature And Wind On Metabolism Of Northern Bobwhite In Winter, L. Wes Burger Jr., Thomas V. Dailey, Mark R. Ryan, Eric Kurzejeski
National Quail Symposium Proceedings
Northern bobwhite (Colinus virginianus) are widely distributed across more than half of the United States, and extending into Canada and Mexico. Within this distribution they tolerate a wide range of climatic conditions and thermal stress. Annual variation in weather can produce dramatic short-term population fluctuations, particularly in the northern portion of the distribution. To better understand effects of thermal stress on energy requirements of bobwhite, we measured roosting metabolic response to cold stress and wind speed using open respirometry in a closed-circuit wind tunnel. Oxygen consumption was measured for 8 winter-acclimated captive bobwhites at each of 8 temperatures …
Genetic Diversity And Relatedness Within And Among Northern Bobwhite Coveys In South Texas, Katherine S. Miller, Leonard A. Brennan, Randy W. Deyoung, Fidel Hernández, X. Ben Wu
Genetic Diversity And Relatedness Within And Among Northern Bobwhite Coveys In South Texas, Katherine S. Miller, Leonard A. Brennan, Randy W. Deyoung, Fidel Hernández, X. Ben Wu
National Quail Symposium Proceedings
Although biologists have studied northern bobwhite (Colinus virginianus) genetic diversity and population structure, there is little known about the genetic diversity, structure, and relatedness of their winter coveys. Both flexible mating strategies and the fall shuffle may have implications for inbreeding and genetic diversity in northern bobwhite populations. Our goal was to determine genetic diversity and relatedness for coveys on a private ranch in Jim Hogg County in South Texas. During the 2010–2011 and 2011–2012 hunting seasons, 96 northern bobwhites were sampled from 29 coveys. We analyzed 11 northern bobwhite microsatellite DNA loci, measured genetic structure with an …
Effect Of Field Trials On Northern Bobwhite Survival And Hunt Quality On Dixie Plantation, D. Clay Sisson, Theron M. Terhune Ii
Effect Of Field Trials On Northern Bobwhite Survival And Hunt Quality On Dixie Plantation, D. Clay Sisson, Theron M. Terhune Ii
National Quail Symposium Proceedings
The potential negative effects of horseback field trials on survival and post trial hunting quality of northern bobwhites (Colinus virginianus) have long been debated. Recent acquisition of Dixie Plantation (3,650 ha) by Tall Timbers Research Station provided a unique opportunity to evaluate this interaction as Dixie has been home to the Continental Field Trial since 1937. We monitored radio-tagged bobwhites annually (n = 183; ~20 coveys during fall/winter) on a core study area (640 ha) upon which a portion of the field trial was conducted during January 2015 & 2016. We estimated Kaplan-Meier survival of radio-tagged bobwhites …
Evaluating The Impacts Of Hunting Paths On Northern Bobwhite Survival, Economic Costs, And Hunter Satisfaction, Seth Wood, Theron M. Terhune Ii, James A. Martin
Evaluating The Impacts Of Hunting Paths On Northern Bobwhite Survival, Economic Costs, And Hunter Satisfaction, Seth Wood, Theron M. Terhune Ii, James A. Martin
National Quail Symposium Proceedings
The amount and spatial configuration of habitat is known to influence the abundance, movements, resource use, and persistence of many species. As such, land managers must be judicious in their application of management actions to minimize its impact on wildlife while concurrently providing recreational opportunities. Mowing or roller-chopping is a common management technique implemented on intensively managed northern bobwhite (Colinus virginianus) plantations to increase hunter accessibility, provide travel corridors for pointing dogs, manage vegetation succession, among other benefits. Managers typically create hunting paths in a grid pattern at 30 ft spacing resulting in approximately 35% of vegetation removed …
Refining The Hunting Zone Of Hunter-Covey Interface Models, James A. Martin, Diana J. Mcgrath, Seth Wood, Theron M. Terhune Ii
Refining The Hunting Zone Of Hunter-Covey Interface Models, James A. Martin, Diana J. Mcgrath, Seth Wood, Theron M. Terhune Ii
National Quail Symposium Proceedings
Regulating harvest is important to sustain northern bobwhite (Colinus virginianus) populations. Direct measures to control harvest such as setting fixed proportions (i.e., percent of fall population) are not typically feasible, thus, indirect measures (e.g., managing access, season length) are more commonly used. However, these measures are predicated on relationships between hunter effort and kill rate (K) which is a function of several parameters including: the probability of encountering a covey (p), where p is a function of the effective area hunted (a) divided by that available (A). Thus, a, …
Evaluating Hunting Success Of Pen-Reared And Wild Northern Bobwhite In A Reclaimed Kentucky Mineland, Jeremy P. Orange, John M. Yeiser, Danna L. Baxley, John J. Morgan, Ben A. Robinson
Evaluating Hunting Success Of Pen-Reared And Wild Northern Bobwhite In A Reclaimed Kentucky Mineland, Jeremy P. Orange, John M. Yeiser, Danna L. Baxley, John J. Morgan, Ben A. Robinson
National Quail Symposium Proceedings
Northern bobwhites (Colinus virginianus) have experienced severe population declines across their distribution. In order to address population declines and to continue providing hunting opportunities, multi-state efforts have been undertaken to stabilize and restore bobwhite populations. Ongoing efforts using the National Bobwhite Conservation Initiative’s quail focus area approach have so far demonstrated success throughout Kentucky. However, population increases in the Peabody Bobwhite Focal Area, in western Kentucky, have not been correlated to increases in perceived hunter success. Consequently, some sportsmen question the effectiveness of focal area conservation. In response to hunter concerns, we tested dog hunting ability with wild …
Factors Influencing Northern Bobwhite Hunter Success On A Public Wildlife Management Area In Kentucky, Jarred M. Brooke, John J. Morgan, Danna L. Baxley, Craig Harper, Pat Keyser
Factors Influencing Northern Bobwhite Hunter Success On A Public Wildlife Management Area In Kentucky, Jarred M. Brooke, John J. Morgan, Danna L. Baxley, Craig Harper, Pat Keyser
National Quail Symposium Proceedings
Hunter success is a critical measure of northern bobwhite (Colinus virginianus) restoration. Understanding the factors influencing hunter success can guide wildlife agencies in efforts to improve success and satisfaction and sustain hunter support of conservation initiatives. We compared use of vegetation types by radiomarked bobwhite (n = 30 coveys) and hunting dogs (n = 241) equipped with Global Positioning System collars during the 2014–2015 quail hunting season on Peabody Wildlife Management Area in western Kentucky. We surveyed hunting parties (n = 252) immediately after their hunt to determine success (flushed bobwhite) and gather hunt-party characteristics. …
Hunter-Covey Interactions Using Pointing Bird Dogs, Theron M. Terhune Ii, Diana J. Mcgrath, Seth Wood, James A. Martin
Hunter-Covey Interactions Using Pointing Bird Dogs, Theron M. Terhune Ii, Diana J. Mcgrath, Seth Wood, James A. Martin
National Quail Symposium Proceedings
Hunting northern bobwhites (Colinus virginianus) with pointing dogs is a long-standing tradition in the Southeastern United States. Despite this rich hunting legacy, a paucity of empirical, behavioral information exists on the interaction between bobwhite coveys, pointing dogs and humans. As such, the efficiency of using pointing dogs to locate bobwhite coveys or an individual covey’s behavioral response to hunting is poorly understood. During 2013 – 2015, we conducted hunts (n = 192) by mode of foot on Tall Timbers Research Station (TTRS, ~1,570 ha) in Leon County, Florida and horseback on a private property (2,023 ha) in …
Distance Sampling To Assess Post-Grazing Northern Bobwhite Recovery In South Texas, Rachel A. Smith, Leonard A. Brennan, Fidel Hernández, Humberto L. Perotto-Baldivieso
Distance Sampling To Assess Post-Grazing Northern Bobwhite Recovery In South Texas, Rachel A. Smith, Leonard A. Brennan, Fidel Hernández, Humberto L. Perotto-Baldivieso
National Quail Symposium Proceedings
Northern bobwhite (Colinus virginianus) require habitat structure with substantial grass cover for nesting, predator avoidance, and thermal refuge. During the past 2 decades, many land managers have reduced or completely eliminated livestock across South Texas rangelands with the goal of improving bobwhite habitat. How bobwhites respond to post-grazing habitat recovery is unknown. Our objective is to investigate how bobwhites respond to the vegetative changes following removal of grazing. Our study is being conducted on a private ranch in Jim Hogg County, Texas and involves 3 different areas of post-grazing habitat recovery: a 1,246 ha area rested from grazing …
The Efficacy Of Gopro Cameras To Account For Northern Bobwhites Flushed, But Undetected During Aerial Surveys, Andrea Bruno, Leonard A. Brennan, Andrew N. Tri, Habin Su
The Efficacy Of Gopro Cameras To Account For Northern Bobwhites Flushed, But Undetected During Aerial Surveys, Andrea Bruno, Leonard A. Brennan, Andrew N. Tri, Habin Su
National Quail Symposium Proceedings
Estimating density and abundance is central to wildlife conservation for planning and decision-making purposes. Development of model-based techniques, such as distance sampling, allows researchers to estimate density with the inclusion of detection probabilities. However, the reliability of estimates obtained through this method are dependent upon the satisfaction of underlying assumptions, the most critical being that objects at zero distance from the observer be detected with 100% certainty. Conventional distance sampling, where line transects are traversed from an aerial platform, is a commonly used method to estimate northern bobwhite (Colinus virginianus) density over large, open areas. The restricted observer …
Comparison Of Dog Surveys And Fall Covey Surveys In Estimating Fall Population Trends Of Northern Bobwhite, Evan P. Tanner, R. Dwayne Elmore, David K. Dahlgren, Craig A. Davis, Samuel D. Fuhlendorf
Comparison Of Dog Surveys And Fall Covey Surveys In Estimating Fall Population Trends Of Northern Bobwhite, Evan P. Tanner, R. Dwayne Elmore, David K. Dahlgren, Craig A. Davis, Samuel D. Fuhlendorf
National Quail Symposium Proceedings
The use of fall covey surveys to monitor population trends for northern bobwhite (Colinus virginianus; hereafter bobwhite) have been widely used in bobwhite research. Estimates of relative abundance from this monitoring technique are often important in assessing population responses to management practices or annual variation. However, conducting covey call surveys is labor intensive and typically can only be conducted during a narrow time frame. The use of dogs as a research tool may offer an efficient alternative to monitor bobwhite population trends. While dogs have been used in research for many other gallinaceous species, their application for bobwhite …