Peter J Gogan (Former Employee)
Science and Products
Filter Total Items: 23
Control of ungulate numbers in a protected area Control of ungulate numbers in a protected area
Successful long-term control of ungulate numbers within a protected area requires continuous review and refinement of management practices. Insights gained may have application to other sites. We evaluated management objectives and actions to control populations of exotic axis deer (Axis axis) and fallow deer (Dama dama) at Point Reyes National Seashore, California. Using records of...
Authors
Peter J. Gogan, Reginald H. Barrett, William W. Shook, Thomas E. Kucera
Introgression of coyote mitochondrial DNA into sympatric North American gray wolf populations Introgression of coyote mitochondrial DNA into sympatric North American gray wolf populations
Mitochondrial DNA (mtDNA) genotypes of gray wolves and coyotes from localities throughout North America were determined using restriction fragment length polymorphisms. Of the 13 genotypes found among the wolves, 7 are clearly of coyote origin, indicating that genetic transfer of coyote mtDNA into wolf populations has occurred through hybridization. The transfer of mtDNA appears...
Authors
Niles Lehman, Andrew Eisenhawer, Kimberly Hansen, L. David Mech, Rolf O. Peterson, Peter J.P. Gogan, Robert K. Wayne
Copper deficiency in Tule Elk at Point Reyes, California Copper deficiency in Tule Elk at Point Reyes, California
Tule elk (Cervus elaphus nannodes) reintroduced to Point Reyes, Calif., in 1978 exhibited gross signs of copper deficiency by June 1979. Copper levels in liver (x=5.9 ppm) and serum (0.42 ppm) of elk in Point Reyes were below levels in adult tule elk from other locations in California (liver, x=80 ppm; serum, x=1.4 ppm). These levels were consistent with documented copper deficiencies in...
Authors
Peter J.P. Gogan, David A. Jessup, Mark Akeson
Antler anomalies in tule elk Antler anomalies in tule elk
Antler anomalies were evident in tule elk (Cervus elaphus nannodes) within 1 yr of reintroduction to Point Reyes, California (USA). These anomalies are consistent with previously described mineral deficiency-induced anomalies in cervids. The elk were judged deficient in copper. Low levels of copper in soils and vegetation at the release site, exacerbated by possible protein deficiency...
Authors
Peter J.P. Gogan, David A. Jessup, Reginald H. Barrett
Science and Products
Filter Total Items: 23
Control of ungulate numbers in a protected area Control of ungulate numbers in a protected area
Successful long-term control of ungulate numbers within a protected area requires continuous review and refinement of management practices. Insights gained may have application to other sites. We evaluated management objectives and actions to control populations of exotic axis deer (Axis axis) and fallow deer (Dama dama) at Point Reyes National Seashore, California. Using records of...
Authors
Peter J. Gogan, Reginald H. Barrett, William W. Shook, Thomas E. Kucera
Introgression of coyote mitochondrial DNA into sympatric North American gray wolf populations Introgression of coyote mitochondrial DNA into sympatric North American gray wolf populations
Mitochondrial DNA (mtDNA) genotypes of gray wolves and coyotes from localities throughout North America were determined using restriction fragment length polymorphisms. Of the 13 genotypes found among the wolves, 7 are clearly of coyote origin, indicating that genetic transfer of coyote mtDNA into wolf populations has occurred through hybridization. The transfer of mtDNA appears...
Authors
Niles Lehman, Andrew Eisenhawer, Kimberly Hansen, L. David Mech, Rolf O. Peterson, Peter J.P. Gogan, Robert K. Wayne
Copper deficiency in Tule Elk at Point Reyes, California Copper deficiency in Tule Elk at Point Reyes, California
Tule elk (Cervus elaphus nannodes) reintroduced to Point Reyes, Calif., in 1978 exhibited gross signs of copper deficiency by June 1979. Copper levels in liver (x=5.9 ppm) and serum (0.42 ppm) of elk in Point Reyes were below levels in adult tule elk from other locations in California (liver, x=80 ppm; serum, x=1.4 ppm). These levels were consistent with documented copper deficiencies in...
Authors
Peter J.P. Gogan, David A. Jessup, Mark Akeson
Antler anomalies in tule elk Antler anomalies in tule elk
Antler anomalies were evident in tule elk (Cervus elaphus nannodes) within 1 yr of reintroduction to Point Reyes, California (USA). These anomalies are consistent with previously described mineral deficiency-induced anomalies in cervids. The elk were judged deficient in copper. Low levels of copper in soils and vegetation at the release site, exacerbated by possible protein deficiency...
Authors
Peter J.P. Gogan, David A. Jessup, Reginald H. Barrett