Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mark A. Fraker"'
Autor:
Ursula S. Bechert, Mark A. Fraker
Publikováno v:
Human-Wildlife Interactions, Vol 12, Iss 1 (2018)
There are currently >75,000 feral horses (Equus ferus caballus) and burros (E. asinus ) on U.S. public lands, yet the Appropriate Management Level (AML) is set at just under 27,000. Wildlife managers, conservation biologists, and livestock ranchers a
Externí odkaz:
https://doaj.org/article/cc9e1be51cef46c08513624dbdcb513d
Autor:
Michelle A. Kutzler, A. R. Menino, Mark A. Fraker, Makensie Anderson, Robert J. Bildfell, Jennifer Bartell, Ursula Bechert
Publikováno v:
The Journal of Wildlife Management. 77:1386-1400
Feral horse population growth rates as high as 25% are of concern to those responsible for managing range lands as well as conservation groups. Current methods to control these populations include adoption and long-term holding, which are both costly
Autor:
Mark A. Fraker
Publikováno v:
Human and Ecological Risk Assessment
During 1985-1990, two groups of killer whales in Prince William Sound, Alaska, experienced unusually high rates of mortality, while seven others did not. Those affected were AB pod, part of the southern Alaska population of resident (fish-eating) kil
Autor:
Shawn L. Locke, Mark A. Fraker, Roel R. Lopez, Donald S. Davis, Saul Hernandez, Louis A. Harveson, Matthew W. Cook, Nova J. Silvy
Publikováno v:
Wildlife Society Bulletin. 34:1430-1434
High white-tailed deer (Odocoileus virginianus) densities in urban areas typically result in human–wildlife conflicts (e.g., deer–vehicle collisions, transmission of disease to humans, and vegetation damage). Controlling deer densities via fertil
Publikováno v:
Current Ornithology Volume 17 ISBN: 9781441964205
Over the past several decades, scientists, resource managers, politicians, policy makers, and the general public have all become increasingly aware of the magnitude and complexity of environmental problems resulting from human activities. Assessing t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::380b9983655ad97d34db4acb57d861a9
https://doi.org/10.1007/978-1-4419-6421-2_4
https://doi.org/10.1007/978-1-4419-6421-2_4
Publikováno v:
Wildlife Research. 40:281
Context Many contraceptive agents have demonstrated effectiveness in wild species, most notably immunocontraceptives such as GnRH conjugates and porcine zona pellucida (PZP). The major challenge in using these agents to control deer and other wildlif
Autor:
Robert G. Brown, Mark A. Fraker
Publikováno v:
Wildlife Research. 38:537
In reporting the results of a trial of contraceptive vaccines in wild horses, Gray et al. (2010) misidentified one of the vaccines as SpayVac®, a porcine zona pellucida (pZP) vaccine that owes its typically very high efficacy to a special DepoVax®
Publikováno v:
The Journal of Wildlife Management. 66:1141
Practical field application of immunocontraception to manage overabundant deer has been hampered by the need for multiple inoculations to establish and maintain contraceptive antibody levels. To determine whether contraception lasting >1 year could b
Publikováno v:
Biological Conservation. 32:195-230
Behaviour near actual and simulated activities associated with offshore oil exploration was compared with ‘presumably undisturbed’ behaviour. Underwater noise was monitored. Reactions to an approaching fixedwing aircraft were frequent if it was a
Autor:
Mark A. Fraker, Randall S. Wells, R. Payne, Eleanor M. Dorsey, Bernd Würsig, W. John Richardson
Publikováno v:
Canadian Journal of Zoology. 62:1910-1921
Surfacing, respiration, and dive characteristics are described for presumably undisturbed bowhead whales in the Beaufort Sea during August and early September 1980–1982. The interval between respirations (blow interval) was relatively constant duri