Peter J Gogan (Former Employee)
Science and Products
Northern Yellowstone Mule Deer Movements and Demographics Northern Yellowstone Mule Deer Movements and Demographics
This data product includes two datasets acquired for the study of northern Yellowstone mule deer seasonal movement and survival patterns. One data set "Point Locations of Radio-collared female northern Yellowstone mule deer" provides details about the date and time of relocations of radio-collared female northern Yellowstone mule deer along with location coordinates. Habitat types with...
Filter Total Items: 23
Pregnancy rates in central Yellowstone bison Pregnancy rates in central Yellowstone bison
Plains bison (Bison b. bison) centered on Yellowstone National Park are chronically infected with brucellosis (Brucella abortus) and culled along the park boundaries to reduce the probability of disease transmission to domestic livestock. We evaluated the relationship between pregnancy rates and age, dressed carcass weight, and serological status for brucellosis among bison culled from...
Authors
Peter J. Gogan, Robin E. Russell, Edward M. Olexa, Kevin M. Podruzny
Re-introduction of tule elk to Point Reyes National Seashore, California, USA Re-introduction of tule elk to Point Reyes National Seashore, California, USA
Tule elk (Cervus elaphus nannodes), a subspecies endemic to California, was historically found in large herds throughout much of central and coastal California. Market hunting during the California Gold Rush decimated these herds, and by 1895, only two to 10 elk remained. This remnant group was protected and served as the source for early relocation efforts (McCullough, 1971). Early...
Authors
Peter J. Gogan, McCrea A. Cobb, Natalie B. Gates, Reginald H. Barrett
Yellowstone bison genetics: let us move forward Yellowstone bison genetics: let us move forward
White and Wallen (2012) disagree with the conclusions and suggestions made in our recent assessment of population structure among Yellowstone National Park (YNP) bison based on 46 autosomal microsatellite loci in 661 animals (Halbert et al. 2012). First, they suggest that "the existing genetic substructure (that we observed) was artificially created." Specifically, they suggest that the
Authors
Natalie D. Halbert, Peter J.P. Gogan, Philip W. Hedrick, Jacquelyn M. Wahl, James N. Derr
Genetic population substructure in bison at Yellowstone National Park Genetic population substructure in bison at Yellowstone National Park
The Yellowstone National Park bison herd is 1 of only 2 populations known to have continually persisted on their current landscape since pre-Columbian times. Over the last century, the census size of this herd has fluctuated from around 100 individuals to over 3000 animals. Previous studies involving radiotelemetry, tooth wear, and parturition timing provide evidence of at least 2...
Authors
Natalie D. Halbert, Peter J. Gogan, Philip W. Hedrick, Jacquelyn M. Wahl, James N. Derr
Estimating survival rates with time series of standing age‐structure data Estimating survival rates with time series of standing age‐structure data
It has long been recognized that age‐structure data contain useful information for assessing the status and dynamics of wildlife populations. For example, age‐specific survival rates can be estimated with just a single sample from the age distribution of a stable, stationary population. For a population that is not stable, age‐specific survival rates can be estimated using techniques...
Authors
Mark S. Udevitz, Peter J. Gogan
Aerial survey estimates of fallow deer abundance Aerial survey estimates of fallow deer abundance
Reliable estimates of the distribution and abundance of an ungulate species is essential prior to establishing and implementing a management program. We used ground surveys to determine distribution and ground and aerial surveys and individually marked deer to estimate the abundance of fallow deer (Dama dama) in north-coastal California. Fallow deer had limited distribution and...
Authors
Peter J. Gogan, Natalie B. Gates, Bruce C. Lubow, Suzanne Pettit
Science and Products
Northern Yellowstone Mule Deer Movements and Demographics Northern Yellowstone Mule Deer Movements and Demographics
This data product includes two datasets acquired for the study of northern Yellowstone mule deer seasonal movement and survival patterns. One data set "Point Locations of Radio-collared female northern Yellowstone mule deer" provides details about the date and time of relocations of radio-collared female northern Yellowstone mule deer along with location coordinates. Habitat types with...
Filter Total Items: 23
Pregnancy rates in central Yellowstone bison Pregnancy rates in central Yellowstone bison
Plains bison (Bison b. bison) centered on Yellowstone National Park are chronically infected with brucellosis (Brucella abortus) and culled along the park boundaries to reduce the probability of disease transmission to domestic livestock. We evaluated the relationship between pregnancy rates and age, dressed carcass weight, and serological status for brucellosis among bison culled from...
Authors
Peter J. Gogan, Robin E. Russell, Edward M. Olexa, Kevin M. Podruzny
Re-introduction of tule elk to Point Reyes National Seashore, California, USA Re-introduction of tule elk to Point Reyes National Seashore, California, USA
Tule elk (Cervus elaphus nannodes), a subspecies endemic to California, was historically found in large herds throughout much of central and coastal California. Market hunting during the California Gold Rush decimated these herds, and by 1895, only two to 10 elk remained. This remnant group was protected and served as the source for early relocation efforts (McCullough, 1971). Early...
Authors
Peter J. Gogan, McCrea A. Cobb, Natalie B. Gates, Reginald H. Barrett
Yellowstone bison genetics: let us move forward Yellowstone bison genetics: let us move forward
White and Wallen (2012) disagree with the conclusions and suggestions made in our recent assessment of population structure among Yellowstone National Park (YNP) bison based on 46 autosomal microsatellite loci in 661 animals (Halbert et al. 2012). First, they suggest that "the existing genetic substructure (that we observed) was artificially created." Specifically, they suggest that the
Authors
Natalie D. Halbert, Peter J.P. Gogan, Philip W. Hedrick, Jacquelyn M. Wahl, James N. Derr
Genetic population substructure in bison at Yellowstone National Park Genetic population substructure in bison at Yellowstone National Park
The Yellowstone National Park bison herd is 1 of only 2 populations known to have continually persisted on their current landscape since pre-Columbian times. Over the last century, the census size of this herd has fluctuated from around 100 individuals to over 3000 animals. Previous studies involving radiotelemetry, tooth wear, and parturition timing provide evidence of at least 2...
Authors
Natalie D. Halbert, Peter J. Gogan, Philip W. Hedrick, Jacquelyn M. Wahl, James N. Derr
Estimating survival rates with time series of standing age‐structure data Estimating survival rates with time series of standing age‐structure data
It has long been recognized that age‐structure data contain useful information for assessing the status and dynamics of wildlife populations. For example, age‐specific survival rates can be estimated with just a single sample from the age distribution of a stable, stationary population. For a population that is not stable, age‐specific survival rates can be estimated using techniques...
Authors
Mark S. Udevitz, Peter J. Gogan
Aerial survey estimates of fallow deer abundance Aerial survey estimates of fallow deer abundance
Reliable estimates of the distribution and abundance of an ungulate species is essential prior to establishing and implementing a management program. We used ground surveys to determine distribution and ground and aerial surveys and individually marked deer to estimate the abundance of fallow deer (Dama dama) in north-coastal California. Fallow deer had limited distribution and...
Authors
Peter J. Gogan, Natalie B. Gates, Bruce C. Lubow, Suzanne Pettit