Download or read book The Ecology of a Small Population of Ruffed Grouse Bonasa Umbellus Linnaeus in a Northern Hardwood Forest written by Charles William Bruton and published by . This book was released on 1969 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Strategies and Population Ecology of Northern Grouse written by A. T. Bergerud and published by U of Minnesota Press. This book was released on 1988 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Adaptive Strategies and Population Ecology of Northern Grouse" was first published in 1988. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions. This book is at once a major reference to the species of grouse that inhabit North America and the Holarctic and a synthesis of all the available data on their ecology, sociobiology, population dynamics, and management. The book undertakes to answer two long-standing questions in population ecology: what actually regulates the numbers within a population, and what are the breeding and survival strategies evolved in this northern environment? For Volume I, editors Arthur T. Bergerud and Michael W. Gratson have drawn together their own work and that of colleagues in North America, Iceland, and Norway--in all, eleven research studies, averaging six years' duration, on eight species of grouse. These studies deal with the blue and ruffed grouse of the forest habitat; the sharp-tailed grouse, prairie chicken, and sage grouse of the prairie or steppe; and the white-tailed, rick, and willow ptarmigan found in alpine and arctic tundras. The authors describe the rich repertoire of behavior patterns developed by the hen and the cock to achieve their two primary objectives--first, to stay alive, and then to breed. Volume II, primarily the work of Bergerud, synthesizes the evidence in Volume I and in the grouse research literature from a theoretical perspective. Several potentially controversial sociobiological hypotheses are advanced to account for flocking behavior, migration, dispersal, roosting and feeding behavior, mate choice and mating systems. The demographic analysis provides new insights into cycles of abundance, the limitation of numbers, and the demographic factors that determine densities. The contributors, besides Bergerud and Gratson: R.C. Davies, A. Gardarson, J.E. Hartzler, R.A. Huempfner, D.A. Jenni, D.H. Mossop, S. Myrberget, R.E. Page, R.K. Schmidt, W.D. Svedarsky, and J.R. Tester.

Download or read book Wildlife Review written by and published by . This book was released on 1969 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by Wisconsin. Department of Natural Resources. Bureau of Research and published by . This book was released on 1971 with total page 332 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 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 Ecological Studies of the Female Ruffed Grouse Bonasa Umbellus L at the Cloquet Forest Research Center Minnesota written by John Joseph Kupa and published by . This book was released on 1966 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Feasibility and Usefulness of Reanalysis of an Historic Ruffed Grouse Bonasa Umbellus Database written by Jeffrey Vance Wells and published by . This book was released on 1992 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies in the Life History of the Ruffed Grouse written by Thomas Smyth and published by . This book was released on 1925 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Ecology of Male Ruffed Grouse Bonasa Umbellus L on the Cloquet Forest Research Center Minnesota written by Robert Lloyd Eng and published by . This book was released on 1959 with total page 246 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 Ruffed Grouse Population Ecology in the Appalachian Region written by and published by . This book was released on 2007 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2The Appalachian Cooperative Grouse Research Project (ACGRP) was a Multistate cooperative effort initiated in 1996 to investigate the apparent decline of ruffed grouse (Bonus umbellus) and improve management throughout the central and southern Appalachian region (i.e., parts of Ohio, Pennsylvania, Rhode Island, Kentucky, West Virginia, Virginia, and North Carolina, USA). Researchers have offered several hypotheses to explain the low abundance of ruffed grouse in the region, including low availability of early-successional forests due to changes in land use, additive harvest mortality, low productivity and recruitment, and nutritional stress. As part of the ACGRP, we investigated ruffed grouse population ecology. Our objectives were to estimate reproductive rates, estimate survival and cause-specific mortality rates, examine if ruffed grouse harvest in the Appalachian region is compensatory, and estimate ruffed grouse finite population growth. We trapped >3,000 ruffed grouse in autumn (Sep-Nov) and spring (Feb-Mar) from 1996 to September 2002 on 12 study areas. We determined the age and gender of each bird and fitted them with necklace-style radiotransmitters and released them at the trap site. We tracked ruffed grouse >- 2 times per week using handheld radiotelemetry equipment and gathered data on reproduction, recruitment, survival, and mortality. Ruffed grouse population dynamics in the Appalachian region differed from the central portion of the species' range (i.e., northern United States and Canada). Ruffed grouse in the Appalachian region had lower productivity and recruitment, but higher survival than reported for populations in the Great Lakes region and southern Canada. Population dynamics differed between oak (Quercus spp.)-hickory (Carya spp.) and mixed-mesophytic forest associations within the southern and central Appalachian region. Productivity and recruitment were lower in oak-hickory forests, but adult survival was higher than in mixed-mesophytic forests. Furthermore, ruffed grouse productivity and recruitment were more strongly related to hard mast (i.e., acorn) production in oak-hickory forests than in mixed-mesophytic forests. The leading cause of ruffed grouse mortality was avian predation (44% of known mortalities). Harvest mortality accounted for 12% of all known mortalities and appeared to be compensatory. Population models indicated ruffed grouse populations in the Appalachian region are declining ([lambda] = 0.78-0.95), but differences in model estimates highlighted the need for improved understanding of annual productivity and recruitment. We posit ruffed grouse in the Appalachian region exhibit a clinal population structure characterized by changes in life-history strategies. Changes in life history strategies are in response to gradual changes in forest structure, quality of food resources, snowfall and accumulation patterns, and predator communities. Management efforts should focus on creating a mosaic of forest stand ages across the landscape to intersperse habitat resources including nesting and brood cover, adult escape cover, roosting sites, and, most importantly, food resources. Land managers can intersperse habitat resources through a combination of‍?c1earcutting, shelterwood harvest, group selection, and timber stand improvement including various thinnings and prescribed fire). Managers should maintain current ruffed grouse harvest rates while providing high quality hunting opportunities. We define high quality hunting as low hunting pressure, low vehicle traffic, and high flush rates. Managers can provide high quality hunting opportunities through use of road closures in conjunction with habitat management.S3.

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 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 THE ECOLOGY AND MANAGEMENT OF THE IDAHO RUFFLED GROUSE BONASA UMBELLUS PHAIA written by Kenneth Eugene Hungerford and published by . This book was released on 1951 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: