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Author: Henry M. Streby Publisher: CRC Press ISBN: 1482240696 Category : Nature Languages : en Pages : 253
Book Description
Golden-winged Warblers (Vermivora chrysoptera) are migratory songbirds that breed in temperate North America, primarily in the Great Lakes region with remnant populations throughout the Appalachian Mountains, and winter in Central and northern South America. Their breeding range has contracted dramatically in the Appalachian Mountains and many populations have dramatically declined, likely due to habitat loss, competition and interbreeding with Blue-winged Warblers (Vermivora pinus), andglobal climate change.. As a result of population declines in much of the eastern portion of their breeding range, Golden-winged Warblers are listed as endangered or threatened in 10 U.S. states and in Canada and have been petitioned for protection under the U.S. Endangered Species Act. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series compiles extensive, current research on Golden-winged Warblers and summarizes what is known and identifies many remaining unknowns, providing a wealth of peer-reviewed science on which future research and listing decisions can be based.
Author: Henry M. Streby Publisher: CRC Press ISBN: 1482240696 Category : Nature Languages : en Pages : 253
Book Description
Golden-winged Warblers (Vermivora chrysoptera) are migratory songbirds that breed in temperate North America, primarily in the Great Lakes region with remnant populations throughout the Appalachian Mountains, and winter in Central and northern South America. Their breeding range has contracted dramatically in the Appalachian Mountains and many populations have dramatically declined, likely due to habitat loss, competition and interbreeding with Blue-winged Warblers (Vermivora pinus), andglobal climate change.. As a result of population declines in much of the eastern portion of their breeding range, Golden-winged Warblers are listed as endangered or threatened in 10 U.S. states and in Canada and have been petitioned for protection under the U.S. Endangered Species Act. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series compiles extensive, current research on Golden-winged Warblers and summarizes what is known and identifies many remaining unknowns, providing a wealth of peer-reviewed science on which future research and listing decisions can be based.
Author: Henry M Streby Publisher: CRC Press ISBN: 9780367658335 Category : Languages : en Pages : 238
Book Description
Golden-winged Warblers (Vermivora chrysoptera) are migratory songbirds that breed in temperate North America, primarily in the Great Lakes region with remnant populations throughout the Appalachian Mountains, and winter in Central and northern South America. Their breeding range has contracted dramatically in the Appalachian Mountains and many populations have dramatically declined, likely due to habitat loss, competition and interbreeding with Blue-winged Warblers (Vermivora pinus), andglobal climate change.. As a result of population declines in much of the eastern portion of their breeding range, Golden-winged Warblers are listed as endangered or threatened in 10 U.S. states and in Canada and have been petitioned for protection under the U.S. Endangered Species Act. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series compiles extensive, current research on Golden-winged Warblers and summarizes what is known and identifies many remaining unknowns, providing a wealth of peer-reviewed science on which future research and listing decisions can be based.
Author: William F. Porter Publisher: JHU Press ISBN: 1421440202 Category : Science Languages : en Pages : 354
Book Description
Wildlife management specialists and landscape ecologists offer a new perspective on the important intersection of these fields in the twenty-first century. It's been clear for decades that landscape-level patterns and processes, along with the tenets and tools of landscape ecology, are vitally important in understanding wildlife-habitat relationships and sustaining wildlife populations. Today, significant shifts in the spatial scale of extractive, agricultural, ranching, and urban land uses are upon us, making it more important than ever before to connect wildlife management and landscape ecology. Landscape ecologists must understand the constraints that wildlife managers face and be able to use that knowledge to translate their work into more practical applications. Wildlife managers, for their part, can benefit greatly from becoming comfortable with the vocabulary, conceptual processes, and perspectives of landscape ecologists. In Wildlife Management and Landscapes, the foremost landscape ecology experts and wildlife management specialists come together to discuss the emerging role of landscape concepts in habitat management. Their contributions • make the case that a landscape perspective is necessary to address management questions • translate concepts in landscape ecology to wildlife management • explain why studying some important habitat-wildlife relationships is still inherently difficult • explore the dynamic and heterogeneous structure of natural systems • reveal why factors such as soil, hydrology, fire, grazing, and timber harvest lead to uncertainty in management decisions • explain matching scale between population processes and management • discuss limitations to management across jurisdictional boundaries and balancing objectives of private landowners and management agencies • offer practical ideas for improving communication between professionals • outline the impediments that limit a full union of landscape ecology and wildlife management Using concrete examples of modern conservation challenges that range from oil and gas development to agriculture and urbanization, the volume posits that shifts in conservation funding from a hunter constituent base to other sources will bring a dramatic change in the way we manage wildlife. Explicating the foundational similarity of wildlife management and landscape ecology, Wildlife and Landscapes builds crucial bridges between theoretical and practical applications. Contributors: Jocelyn L. Aycrigg, Guillaume Bastille-Rousseau, Jon P. Beckmann, Joseph R. Bennett, William M. Block, Todd R. Bogenschutz, Teresa C. Cohn, John W. Connelly, Courtney J. Conway, Bridgett E. Costanzo, David D. Diamond, Karl A. Didier, Lee F. Elliott, Michael E. Estey, Lenore Fahrig, Cameron J. Fiss, Jacqueline L. Frair, Elsa M. Haubold, Fidel Hernández, Jodi A. Hilty, Joseph D. Holbrook, Cynthia A. Jacobson, Kevin M. Johnson, Jeffrey K. Keller, Jeffery L. Larkin, Kimberly A. Lisgo, Casey A. Lott, Amanda E. Martin, James A. Martin, Darin J. McNeil, Michael L. Morrison, Betsy E. Neely, Neal D. Niemuth, Chad J. Parent, Humberto L. Perotto-Baldivieso, Ronald D. Pritchert, Fiona K. A. Schmiegelow, Amanda L. Sesser, Gregory J. Soulliere, Leona K. Svancara, Stephen C. Torbit, Joseph A. Veech, Kerri T. Vierling, Greg Wathen, David M. Williams, Mark J. Witecha, John M. Yeiser
Author: Laurel Moulton Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The Golden-winged Warbler (Vermivora chrysoptera) is an early-successional specialist and one of the fastest declining songbird species in North America. This decline is related in part to habitat loss and degradation of contemporary forests; however, the consequences of anthropogenic disturbance on the species need further evaluation. Thus, I assessed occupancy, population growth, mating behaviors, and hybrid habitat use by Golden-winged Warblers across a range of disturbance levels within southeast Manitoba, Canada. Golden-winged Warblers consistently responded most strongly to disturbance at the 1-km scale. Forest patches with greater agricultural matrix cover at a 1-km scale were less likely to be occupied by Golden-winged Warblers. However, warblers did select for early-successional habitat created via resource extraction and other anthropogenic disturbances at this scale. Despite higher densities, productivity declined in landscapes with greater edge density because of Brown-headed Cowbird (Molothrus ater) brood parasitism. Additionally, pairing success was reduced in patches with lower forest cover at a 1-km scale, although extra-pair paternity rates were not impacted by patch or landscape characteristics. These results suggest that proximate habitat cues used to select nesting sites may be decoupled from realized fitness in this system. Of the sub-populations I monitored, all showed negative population growth suggesting that anthropogenically disturbed forests may act as ecological traps for Golden-winged Warblers. The most productive habitat for Golden-winged Warbler will have high forest cover and minimal anthropogenic edges. Hybridization with Blue-winged Warblers (Vermivora cyanoptera) has also been suggested as a reason for population declines range-wide and I found that hybridization is now occurring in low levels in the Manitoba population. I found no difference in the habitat used by Golden-winged Warblers compared with hybrids at either a territory or landscape scale. The low proportion of hybrids found in Manitoba and the lack of a distinguishable difference in habitat use by Golden-winged Warblers and hybrids indicates that management efforts to encourage habitat use by Golden-winged Warblers while discouraging habitat use by Blue-winged Warbler are unlikely to be a successful conservation strategy. Instead, management efforts should focus on maintaining or creating early-successional habitats with minimal anthropogenic edges.
Author: David G. Krementz Publisher: University of Minnesota Libraries Publishing ISBN: 1946135593 Category : Nature Languages : en Pages : 288
Book Description
The Proceedings of the Eleventh American Woodcock Symposium held at the Ralph A. McMullan Center in Roscommon, Michigan on 24–27 October 2017
Author: Justin Andrew Lehman Publisher: ISBN: Category : Bird populations Languages : en Pages : 89
Book Description
Golden-winged Warbler (Vermivora chrysoptera) populations in the Appalachian Mountains have declined precipitously over the past 50 years. To better understand the decline, I studied two important aspects of the reproductive cycle: the nesting and post-fledging periods on reclaimed surface mines and recent timber harvest sites at North Cumberland Wildlife Management Area (NCWMA), Tennessee from 2013 to 2015. Nestlings were radio-marked with a 30-day transmitter two days before their scheduled fledge date and monitored daily once they fledged. Vegetation data were collected at the nest site and daily fledgling locations points along with paired random points. Vegetation characteristics most important during nest site selection were percent mature forest within 250 m of nest (selected against), percent Rubus spp. within 1m of nest (selected for) and vertical vegetation density (selected for). Fledglings did not select for or against any vegetation types during their first 3 days post-fledging. Shrub/sapling vegetation was most selected for during days 4-25. Fledglings avoided mature forest vegetation and herbaceous vegetation during the same time period. Nest survival over a 23-day nesting cycle was 0.354 ± 0.058 (SE) across all years. Vegetation characteristics most closely related to daily nest survival were percent forbs within 1 m of nest (positive relationship) and percent Rubus spp. within 1 m of nest (negative relationship). Fledgling survival for the entire 25-day post-fledging period was 0.289 ± 0.066, with most of the mortality occurring in the first 3 days (0.736 ± 0.039 daily survival rate). Snake predation accounted for 52% (16/31) of known deaths. The best supported model when individual habitat covariates were added included percent shrub-sapling vegetation within 250 m of post-fledging location (negative relationship). All other individual covariates had a delta AICc >2 when compared to the top model. Managing for Golden-winged Warbler nesting and ensuring fledgling survival. Compared to values reported elsewhere across the northern parts of the breeding range of the species, full season productivity at NCWMA of 0.66 offspring/pair may be insufficient to sustain populations without significant sources of immigration.reproduction must be a balance between meeting the needs for
Author: Nova J. Silvy Publisher: Johns Hopkins University Press ISBN: 1421436698 Category : Science Languages : en Pages : 1401
Book Description
This deft and thorough update ensures that The Wildlife Techniques Manual will remain an indispensable resource, one that professionals and students in wildlife biology, conservation, and management simply cannot do without.
Author: Henry M. Streby
Author: Henry M. Streby
Author: Henry M Streby
Author: Helen M. Hands
Author: William F. Porter
Author: Laurel Moulton
Author: Kyle Ray Adlinger
Author: David G. Krementz
Author: Nancy C. Parachini
Author: Justin Andrew Lehman
Author: Nova J. Silvy