Download or read book Dispersal Reproduction Habitat Use and Food Habits of Introduced Ruffed Grouse Bonasa Umbellus in Northern Arkansas written by Michael R. Widner and published by . This book was released on 1987 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproduction Dispersal Survivorship Habitat Use and Food Habits of Ruffed Grouse written by Douglas A. James and published by . This book was released on 1987 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Annual Conference Southeastern Association of Fish and Wildlife Agencies written by Southeastern Association of Fish and Wildlife Agencies and published by . This book was released on 1988 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruffed Grouse Bonasa Umbellus Habitat Ecology in the Central and Southern Appalachians microform written by Darroch M. (Darroch Michael) Whitaker and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2003 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruffed grouse populations are low in Appalachian forests, possibly because low habitat quality negatively affects survival, condition, and reproduction. Through the Appalachian Cooperative Grouse Research Project (ACGRP) researchers tracked>1500 radioed grouse at 10 study sites (1996-2002). To improve our understanding of Appalachian grouse habitat ecology, I carried out two primary analyses of this database. First, grouse should be under selective pressure to minimize movements, so I studied factors associated with variation in home range size. Second, importance of a habitat is affected by an individual's resource needs, and I investigated factors associated with variation in selection of "preferred" habitats. Both approaches yielded important insights into the species' regional habitat ecology. As elsewhere, clearcuts, which afford escape cover, formed the cornerstone of grouse habitat in the region. However, a number of other factors were also important. At the root of this was a divergence in habitat ecology between grouse inhabiting the two major forest types in the region. In oak-hickory forests nutritional constraint strongly influenced habitat use.
Download or read book Ecology and Management of Appalachian Ruffed Grouse written by Dean F. Stauffer and published by Hancock House Publishing. This book was released on 2011 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of all aspects of grouse ecology and management in the central and southern Appalachians, summarizing findings of the Appalachian Cooperative Grouse Research Project. Topics covered include basic biology and ecology re nesting and brood survival; survival factors; food habits and nutrition; home ranges and dispersal; population and habitat management; the future of grouse in the region. The ecology and management of ruffed grouse is well understood for their core range where aspen is dominant and integral to their well-being. But, what of ruffed grouse that occur where aspen doesn't provide for their annual needs? Ecology and Management of Appalachian Ruffed Grouse presents a comprehensive overview of all aspects of grouse ecology and management in the central and southern Appalachians and summarizes the findings of the Appalachian Cooperative Grouse Research Project. From 1996 through 2002, investigators captured, released and followed the fate of over 3000 grouse on 12 study sites from Rhode Island to North Carolina. The primary goal was to understand factors, including hunting, that affect grouse survival, but in the process a substantial amount of additional information was discovered about grouse ecology in the Appalachians. The book covers the following topics: basic biology and ecology related to nesting and brood survival; factors affecting survival; food habits and nutrition effects on ecology; home ranges and dispersal; roosting ecology; population and habitat management; and, grouse management on private lands and the future of grouse in the central and southern Appalachians. This book should appeal to serious students of grouse ecology and management, game bird enthusiasts, and those individuals who are interested in natural history of birds in general.
Download or read book Ruffed Grouse Bonasa Umbellus Habitat Ecology in the Central and Southern Appalachians written by Darroch M. Whitaker and published by . This book was released on 2003 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruffed grouse populations are low in Appalachian forests, possibly because low habitat quality negatively affects survival, condition, and reproduction. Through the Appalachian Cooperative Grouse Research Project (ACGRP) researchers tracked>1500 radioed grouse at 10 study sites (1996-2002). To improve our understanding of Appalachian grouse habitat ecology, I carried out two primary analyses of this database. First, grouse should be under selective pressure to minimize movements, so I studied factors associated with variation in home range size. Second, importance of a habitat is affected by an individual's resource needs, and I investigated factors associated with variation in selection of "preferred" habitats. Both approaches yielded important insights into the species' regional habitat ecology. As elsewhere, clearcuts, which afford escape cover, formed the cornerstone of grouse habitat in the region. However, a number of other factors were also important. At the root of this was a divergence in habitat ecology between grouse inhabiting the two major forest types in the region. In oak-hickory forests nutritional constraint strongly influenced habitat use.
Download or read book Ruffed Grouse Habitat Use in Western North Carolina written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruffed grouse (Bonasa umbellus) historically have been considered a bird of early successional habitats. Over the past 60 years, forests of the southern Appalachians have matured, as a result of reduced timber harvest. Because of pressure from special interest groups, the U.S. Forest Service no longer uses the clearcutting method of regeneration. Use of forest stands created by alternative silvicultural techniques by grouse is unknown. The primary objective of this study was to determine grouse use of various forest types and stand ages, including stands regenerated by shelterwood, 2-aged shelterwood, and group selection early after harvest. Eighty-five grouse were captured in Fall 1999 and Spring 2000 with interception and mirror traps with a trap success rate of 1.2 birds/100 trap nights. Mesic pole stands(11-39 years old) were preferred over mature stands (>40 years old) and sapling stands (>10 years old) for year-round habitat use. Males had an average annual home range of 43 ha (106ac) a fall-winter range of 51 ha (126ac), and a spring-summer range of 32 ha (79 ac). Females had an average annual home range 66 ha (163 ac), a fall-winter range of 64 ha (158 ac), and a spring-summer range of 46 ha (114 ac). Male grouse had an average day-use area of 1.5 ha (4 ac), while females typically stayed within 0.8 ha (2 ac). A spring drumming census suggested there were 2 birds/100 ha in 1999 and 4 birds/100 ha in 2000. Drumming logs were most often located on ridge tops in mature stands with a dense mid-story of mountain laurel (Kalmia latifolia) or flame azalea (Rhododendron calendulaceum). Vegetation and topographic sampling suggested microsite selection did not affect trap success, however, traps located in edge habitat were more successful than traps in mature stands. The annual mortality rate was 62%. Ten mortalities were believed to be caused by avian predators, 18 by mammalian predators, 6 grouse were killed by hunters, and 9 by other causes. Management recommendations should prescribe timber harvests in mesic forest stands to benefit ruffed grouse. Cuts should be separated both in time and space and be positioned near mature oak-hickory and/or northern hardwood stands when possible. Cuts should be located on mid- to lower slopes to provide early successional habitat, while leaving selected ridge tops uncut to provide suitable drumming log habitat. Logging roads and openings should be planted in a clover and annual grass mixture to establish quality herbaceous openings used by grouse for winter feeding and spring/summer brood rearing.
Download or read book Ruffed Grouse Habitat Use Reproductive Ecology and Survival in Western North Carolina written by and published by . This book was released on 2005 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruffed grouse populations are lower in the Appalachians compared to the Great Lakes states, the geographic core of grouse distribution. Theories to explain lower numbers in the Appalachians include inadequate foods, lower reproduction, lower survival, and loss of habitat. To provide insight into ruffed grouse ecology in the Appalachians, habitat use, reproduction, and survival were studied on Nantahala National Forest in western North Carolina. Radiotagged grouse (n = 276) were monitored through the year. Seasonal 75% kernel home ranges (n = 172) averaged 15-59 ha across sexes, ages, and seasons. Home range size was related to habitat with smaller ranges occurring where 6-20-year-old mixed oak (SUBXER2) and forest roads (ROAD) were interspersed with other habitats. Across seasons, sexes and ages, SUBXER2 and ROAD were among preferred habitats. Compared to males, females used greater diversity of habitats, including>40-year-old stands. Use of older stands may have been influenced by food availability (i.e., hard mast). Nests (n = 44) were located to determine fate. The majority of nests (86%) were on mid and upper slopes in mature stands>40-years old. Proportion of successful nests was 81%. Mayfield nest survival was 0.83 (+ 0.084 SE) and did not differ between juveniles and adults. Nesting rate was 73% and did not differ between juveniles and adults. One female renested, though high nest success precluded opportunities for documenting extent of renesting. Mean first nest clutch was 10.1 eggs. Broods (n = 35) were monitored intensively following hatch. Brood sites had greater herbaceous ground cover, vertical cover, midstory stem density, and invertebrate density compared to random sites. Mean home range size was 24.3 ha (" 4.0 SE) using 75% kernel methods and 40.0 ha (" 4.0 SE) using MCP. Preferred habitats were mixed oak 0-5, 6-20, and>80-years old, forest roads, and edges of maintained clearings. Mean annual survival of grouse>3 months old was 0.39 (" 0.052 SE). Of mortalities, 43% were from mammalian predators, 27% avian, 13% unknown predation, 11% hunter harvest and 7% other causes. Scavenging prior to transmitter recovery may have inflated mammalian predation rates. Relatively low hunter harvest did not appear to be additive to natural mortality. Spring population density, estimated from drumming counts, decreased from 11.4 grouse/100ha in 2000 to 5.88 grouse/100 ha in 2004. Fall population density indexed by catch per unit effort also decreased during the study from 0.96 grouse/100 trap-days in 1999 to 0.19 grouse/100 trap-days in 2003. The fall population index was inversely related to annual survival (r2 = 0.76, P = 0.054). The inverse relationship may have been a function of habitat availability. Annual recruitment indexed by proportion of juveniles in fall captures was less than reports from the northern core of ruffed grouse range. Overall percentage of juveniles in fall captures was 59.6%, ranging from 46.2-66.7%. Recommendations to increase grouse density include creating a diversity of forest types and age classes interspersed across the landscape. Alternative regeneration techniques such as shelterwood, irregular shelterwood, and group selection can be used to intersperse food and cover, thus improving grouse habitat.
Download or read book Ruffed Grouse Bonasa Umbellus written by John A. Crawford and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early Winter Food of Ruffed Grouse written by Arnold Lars Nelson and published by . This book was released on 1938 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Food Habits and Diet Quality of Ruffed Grouse Bonasa Umbellus in Eastern Kentucky and South central Ohio written by Brandon McKinley Scurlock and published by . This book was released on 2002 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The foraging period required to attain sufficient nutrients for adequate body condition when dependent on a leafy diet may predispose ruffed grouse to high levels of predation and mortality related to exposure. Management that promote plants high in protein and ME which afford short foraging periods are recommended as ways to locally enhance ruffed grouse populations.
Download or read book Winter Food of Ruffed Grouse in New York written by Leon Hugh Kelso and published by . This book was released on 1935 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Suitability Index Models written by Brian S. Cade and published by . This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruffed Grouse Nesting Ecology and Brood Habitat in Western North Carolina written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruffed grouse (Bonasa umbellus) population densities are lower in the southern Appalachians compared to more northern parts of grouse range. Southern forests lack an aspen (Populus spp.) forest component, which provides year-round habitat in the North. The absence of aspen and low productivity have been cited as possible causes for low grouse densities in the southern Appalachians. In addition, habitat quality in the eastern United States may be decreasing as forests mature. These factors contribute to concerns that the region may be experiencing long-term ruffed grouse population declines. Productivity and breeding habitat must be characterized to foster better forest management strategies and ensure viable ruffed grouse populations in the southern Appalachians. The objective of this study was to quantify productivity and characterize habitat at nest and brood locations in the Nantahala National Forest, North Carolina. Radio-collared hens were monitored in April-July 2000 and 2001 to determine nesting rate, clutch size, nesting chronology, and nest survival. Habitat characteristics were measured at nests (n=19), and brood locations (n=115) for 14 hens. Invertebrate samples (n=932) were taken at each brood and random location during the first 6 weeks post-hatch to determine food availability for young ruffed grouse chicks. Nest and brood locations were paired with random locations to compare used versus available habitat. Mean incubation initiation dates varied between years (P=0.0050) and ranged from 10 April to 29 April. Hen incubation rate (84%), Mayfield nest survival (76%), mean clutch size (10.1 eggs/nest), and egg hatching success (95%) did not differ between years or age classes (P>0.05). Hens selected nest locations with more dense vertical cover (83%) than random. No chicks (n=48) survived past 4 weeks post-hatch (n=5 broods) in 2000. In contrast, all broods (n=9) had at least one chick survive through the entire brooding season in 2001. Brood habitat selection differed between years (P
Download or read book Winter Nutritional Ecology of Ruffed Grouse Bonasa Umbellus and Aspects of Digestive Fermentation in this Species and Two Other Northern Herbivores written by Conrad R. Vispo and published by . This book was released on 1995 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fall Food Habits of the Ruffed Grouse Bonasa Umbellus L in the Thunder Bay District written by David Beard and published by . This book was released on 1987 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact Research Program Ruffed Grouse Bonasa Umbellus Section 4 1 1 US Army Corps of Engineers Wildlife Resources Management Manual written by John A. Crawford and published by . This book was released on 1986 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wildlife species account for the ruffed grouse (Bonasa umbellus) is provided as Section 4.1.1 of the US Army Corps of Engineers Wildlife Resources Management Manual. The account is developed as a guide to provide the Corps District or project biologist with basic information on the biology, ecological requirements, and management technology for the ruffed grouse. Major topics covered include status, characters and measurements, population attributes, habitat requirements, management, and census and sampling. The importance of the ruffed grouse as a game species is discussed, and the present and historic range of the species is described. Diagnostic characters are presented, including criteria for sex and age determination. The section on population attributes includes details on densities, movements, breeding biology, and mortality factors. Food and cover requirements are treated from a regional perspective, and principal foods are listed by region in tabular form. Techniques for managing ruffed grouse habitat and estimating grouse populations are described, and major sources of information are provided. (Author).
