James L Bodkin (Former Employee)
Science and Products
Filter Total Items: 138
Strategies for survival: Marine mammals Strategies for survival: Marine mammals
No abstract available.
Authors
Sara J. Iverson, Alan M. Springer, James L. Bodkin
Strategies for survival: Stellar sea lions, harbor seals and sea otters Chapter 4.9 Strategies for survival: Stellar sea lions, harbor seals and sea otters Chapter 4.9
No abstract available.
Authors
Alan M. Springer, Sara J. Iverson, James L. Bodkin
Activity budgets derived from time-depth recorders in a diving mammal Activity budgets derived from time-depth recorders in a diving mammal
We describe a method to convert continuously collected time–depth data from archival time–depth recorders (TDRs) into activity budgets for a benthic-foraging marine mammal. We used data from 14 TDRs to estimate activity-specific time budgets in sea otters (Enhydra lutris) residing near Cross Sound, southeast Alaska, USA. From the TDRs we constructed a continuous record of behavior for...
Authors
James L. Bodkin, Daniel H. Monson, George G. Esslinger
Marine mammal populations Marine mammal populations
No abstract available.
Authors
Alan M. Springer, Sara J. Iverson, James L. Bodkin
Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline
1. Growth models for body mass and length were fitted to data collected from 1842 sea otters Enhydra lutris shot or live-captured throughout south-west Alaska between 1967 and 2004. Growth curves were constructed for each of two main year groups: 1967–71 when the population was at or near carrying capacity and 1992–97 when the population was in steep decline. Analyses of data collected...
Authors
K.L. Laidre, J. A. Estes, M. T. Tinker, James L. Bodkin, Daniel H. Monson, K. Schneider
Spatial and temporal variation in sea otter demography Spatial and temporal variation in sea otter demography
1) Better information on historical and current population dynamics is central to understanding patterns of growth and decline in the California sea otter population. We developed a maximum likelihood-based analytical method to estimate historical age/sex specific vital rates as well as spatial and temporal variation in vital rates from longitudinal databases on population census numbers...
Authors
M. Tim Tinker, Daniel F. Doak, James A. Estes, Brian B. Hatfield, Michelle M. Steadler, James L. Bodkin
Science and Products
Filter Total Items: 138
Strategies for survival: Marine mammals Strategies for survival: Marine mammals
No abstract available.
Authors
Sara J. Iverson, Alan M. Springer, James L. Bodkin
Strategies for survival: Stellar sea lions, harbor seals and sea otters Chapter 4.9 Strategies for survival: Stellar sea lions, harbor seals and sea otters Chapter 4.9
No abstract available.
Authors
Alan M. Springer, Sara J. Iverson, James L. Bodkin
Activity budgets derived from time-depth recorders in a diving mammal Activity budgets derived from time-depth recorders in a diving mammal
We describe a method to convert continuously collected time–depth data from archival time–depth recorders (TDRs) into activity budgets for a benthic-foraging marine mammal. We used data from 14 TDRs to estimate activity-specific time budgets in sea otters (Enhydra lutris) residing near Cross Sound, southeast Alaska, USA. From the TDRs we constructed a continuous record of behavior for...
Authors
James L. Bodkin, Daniel H. Monson, George G. Esslinger
Marine mammal populations Marine mammal populations
No abstract available.
Authors
Alan M. Springer, Sara J. Iverson, James L. Bodkin
Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline
1. Growth models for body mass and length were fitted to data collected from 1842 sea otters Enhydra lutris shot or live-captured throughout south-west Alaska between 1967 and 2004. Growth curves were constructed for each of two main year groups: 1967–71 when the population was at or near carrying capacity and 1992–97 when the population was in steep decline. Analyses of data collected...
Authors
K.L. Laidre, J. A. Estes, M. T. Tinker, James L. Bodkin, Daniel H. Monson, K. Schneider
Spatial and temporal variation in sea otter demography Spatial and temporal variation in sea otter demography
1) Better information on historical and current population dynamics is central to understanding patterns of growth and decline in the California sea otter population. We developed a maximum likelihood-based analytical method to estimate historical age/sex specific vital rates as well as spatial and temporal variation in vital rates from longitudinal databases on population census numbers...
Authors
M. Tim Tinker, Daniel F. Doak, James A. Estes, Brian B. Hatfield, Michelle M. Steadler, James L. Bodkin
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