4. Northern Bobwhite Habitat Management and Restoration

2010 ◽  
pp. 200-215
Keyword(s):  
Habitat Management ◽  
Northern Bobwhite

scholarly journals Ecology of the Cooper's Hawk in North Florida

2013 ◽  
Vol 78 (00) ◽  
pp. 1-58 ◽  
Author(s):  
Brian A. Millsap ◽  
Timothy F. Breen ◽  
Laura M. Phillips
Keyword(s):  
Home Range ◽  
Habitat Management ◽  
Northern Bobwhite ◽  
Nest Area ◽  
Nonbreeding Season ◽  
Important Prey ◽  
Northern Mockingbirds ◽  
Northern Cardinals ◽  
Blue Jays ◽  
Cooper's Hawks

Abstract We studied adult Cooper's hawks Accipiter cooperii on two study areas in north Florida from 1995 to 2001, an area dominated by large plantations managed for northern bobwhite Colinus virginianus and an area of mixed farmland and woods with no direct bobwhite management. We monitored 76 Cooper's hawk nesting attempts at 31 discrete nest areas, and radio-tagged 19 breeding males and 30 breeding females that we radio-tracked for up to 5 y. Nesting density (565 to 1,494 ha per occupied nest area) was comparable but productivity (1.8 and 2.8 young fledged per occupied and successful nest area, respectively) was lower than for the species elsewhere. Prey may have been more limiting than in other areas studied because chipmunks Tamias striatus, an important prey elsewhere, were absent. Annual Cooper's hawk survival averaged 84% for males and 81% for females, except in 1998 when survival was substantially lower. Average annual home-range size for male Cooper's hawks was 15.3 km2 inclusive of one nesting area. Female annual ranges averaged 30.3 km2, and included from three to nine nesting areas. Daily space use was similar between the sexes, but females had separate breeding and nonbreeding ranges whereas males were sedentary. Females used the same nonbreeding areas among years, but switched nesting areas 68% of the time compared with only 17% for males. Birds comprised 88% of the breeding and 98% of the nonbreeding season diet of Cooper's hawks by frequency. Important prey species all year were mourning doves Zenaida macroura, blue jays Cyanocitta cristata, and northern bobwhite; during summer, cattle egrets Bubulcus ibis, northern mockingbirds Mimus polyglottos and northern cardinals Cardinalis cardinalis were also important; and during autumn and winter, killdeer Charadrius vociferus, yellow-billed cuckoos Coccyzus americanus, and chickens were important. Female Cooper's hawks took larger prey than males; females were responsible for most cattle egret and chicken kills; whereas, males took most blue jays, killdeer, northern mockingbirds, and northern cardinals. Of avian prey brought to nests, 64% were nestling birds. Most adult male Cooper's hawks were adept at raiding bird nest boxes. Male Cooper's hawks captured 85% of the prey fed to nestlings. Female Cooper's hawks relied on males for food from early March until young were ≥12 d old, and 6 of 10 breeding females monitored intensively were never observed foraging for their broods. Most prey brought to nestling Cooper's hawks was captured within 2 km of nests, and foraging effort was consistent throughout the day. During the nonbreeding season, most prey captures occurred before 0900 hours or at dusk. Northern bobwhite made up 2% of male and 6% of female Cooper's hawk prey annually by frequency; this extrapolated to 18 bobwhite/year/adult Cooper's hawk on both study areas, 59% of which were captured between November and February. Outside the breeding season, male Cooper's hawks foraged evenly over their home range whereas females tended to focus on prey concentrations. Because female Cooper's hawks were so adept at finding and exploiting prey hotspots, perhaps the best strategy for reducing predation on bobwhite is habitat management that produces an even distribution of bobwhite across the landscape.

Guidelines for habitat management: the influence of slope on population expansion of Euphorbia clivicola R.A. Dyer. a case study

2019 ◽  
Vol 51 (4) ◽  
Author(s):  
Seloba Ignitius Chuene ◽  
Martin Johannes Potgieter ◽  
Johannes Wilhelmus Kruger
Keyword(s):  
Habitat Management ◽  
Population Expansion

Aquatic Habitat Analysis as an Element of Water Resources Planning and Management

1985 ◽  
Vol 17 (6-7) ◽  
pp. 879-890 ◽  
Author(s):  
Edwin E. Herricks
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Environmental Quality ◽  
Habitat Management ◽  
Aquatic Habitat ◽  
Water Quality Criteria ◽  
Water Resources Planning ◽  
High Quality ◽  
Planning And Management ◽  
Resources Planning

With increased emphasis on environmental quality objectives in water resources planning and management, past practices of simply considering water quality as the only environmental quality objective are inappropriate. Expanded environmental quality objectives include maintenance of high quality aquatic habitat. Water resource systems must provide both physical and chemical conditions appropriate for the propagation and maintenance of healthy diverse aquatic communities. Managing water resources to provide high quality habitat involves planning to meet both water quality and water quantity objectives. Existing technology based water quality controls and stream based water quality criteria can now be supplemented by aquatic habitat management. An approach to aquatic habitat management is illustrated by use of the Incremental Methodology developed by the U. S. Fish and Wildlife Service. The Incremental Methodology uses measures of aquatic habitat to assess instream flows required for by aquatic life. Thus the range of environmental quality objectives in resources planning and management is expanded by application of these methods to include aquatic habitat as well as water quality management. Methods used to determine instream flow needs for rivers in Illinois are reviewed, and the use of this information in developing regulations limiting water extraction for off stream use are described. Aquatic habitat based management is shown to provide workable methods to meet expanded environmental quality objectives in water resources planning and management.

The First Half of the Twentieth Century

2018 ◽  
Author(s):  
Alexander Gillespie
Keyword(s):  
Habitat Management ◽  
Social Economic ◽  
Chemical Pollution ◽  
Freshwater Conservation ◽  
The Great Depression ◽  
Negative Results ◽  
The Social ◽  
The World ◽  
The One ◽  
The Welfare State

The years between 1900 and 1945 were very difficult for humanity. In this period, not only were there two world wars to survive but also some of the worst parts of the social, economic, and environmental challenges of sustainable development all began to make themselves felt. The one area in which progress was made was in the social context, in which the rights of workers and the welfare state expanded. The idea of ‘development’, especially for the developing world, also evolved in this period. In the economic arena, the world went up, and then crashed in the Great Depression, producing negative results that were unprecedented. In environmental terms, positive templates were created for some habitat management, some wildlife law, and parts of freshwater conservation. Where there was not so much success was with regard to air and chemical pollution.

Antibiotic susceptibility of Edwardsiella hoshinae isolated from northern bobwhite quail (Colinus virginianus)

2004 ◽  
Vol 155 (1) ◽  
pp. 29-29 ◽  
Author(s):  
I. M. Singh ◽  
S. Singh ◽  
M. A. McMurphy ◽  
S. S. Crupper ◽  
F. Mills-Robertson ◽  
...  
Keyword(s):  
Antibiotic Susceptibility ◽  
Colinus Virginianus ◽  
Northern Bobwhite ◽  
Bobwhite Quail

scholarly journals Fire, land cover, and temperature drivers of bat activity in winter

Fire Ecology ◽  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Marcelo H. Jorge ◽  
Sara E. Sweeten ◽  
Michael C. True ◽  
Samuel R. Freeze ◽  
Michael J. Cherry ◽  
...  
Keyword(s):  
Land Cover ◽  
Habitat Management ◽  
Deciduous Forest ◽  
Pinus Palustris ◽  
Growing Season ◽  
Early Spring ◽  
Bat Activity ◽  
White Nose Syndrome ◽  
Dormant Season ◽  
Wind Energy Development

Abstract Background Understanding the effects of disturbance events, land cover, and weather on wildlife activity is fundamental to wildlife management. Currently, in North America, bats are of high conservation concern due to white-nose syndrome and wind-energy development impact, but the role of fire as a potential additional stressor has received less focus. Although limited, the vast majority of research on bats and fire in the southeastern United States has been conducted during the growing season, thereby creating data gaps for bats in the region relative to overwintering conditions, particularly for non-hibernating species. The longleaf pine (Pinus palustris Mill.) ecosystem is an archetypal fire-mediated ecosystem that has been the focus of landscape-level restoration in the Southeast. Although historically fires predominately occurred during the growing season in these systems, dormant-season fire is more widely utilized for easier application and control as a means of habitat management in the region. To assess the impacts of fire and environmental factors on bat activity on Camp Blanding Joint Training Center (CB) in northern Florida, USA, we deployed 34 acoustic detectors across CB and recorded data from 26 February to 3 April 2019, and from 10 December 2019 to 14 January 2020. Results We identified eight bat species native to the region as present at CB. Bat activity was related to the proximity of mesic habitats as well as the presence of pine or deciduous forest types, depending on species morphology (i.e., body size, wing-loading, and echolocation call frequency). Activity for all bat species was influenced positively by either time since fire or mean fire return interval. Conclusion Overall, our results suggested that fire use provides a diverse landscape pattern at CB that maintains mesic, deciduous habitat within the larger pine forest matrix, thereby supporting the diverse bat community at CB during the dormant season and early spring.

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