Species We Study: Marine Mammals Active
Marine mammals
Marine Mammals Research
Recent data (2020-2022) related to USGS marine mammal research is listed below. A complete listing of USGS marine mammal data is available from the button below.
Energetic Costs of Locomotion in Bears
Measures of oxygen consumption and stroke frequency of a captive subadult polar bear (Ursus maritimus) while resting in water and swimming and diving in a metabolic water flume, Oregon Zoo, 2017
Sea Otter Aerial Survey Data from Glacier Bay National Park and Preserve, 1999-2012
Accelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016
At-Sea Distribution and Abundance of Seabirds and Marine Mammals off Southern California GIS Resource Database: Aerial seabird and marine mammal surveys off southern California, 1999-2002
Recent publications (2020-2022) related to USGS marine mammal research are listed below. A complete listing of USGS marine mammal publications is available from the button below.
A Quantitative Threats Analysis for the Florida Manatee (Trichechus manatus latirostris)
Possible effects of the 2004 and 2005 hurricanes on manatee survival rates and movement
Capture-recapture analysis for estimating manatee reproductive rates
A stage-based model of manatee population dynamics
Survival estimates for Florida manatees from the photo-identification of individuals
Seasonal movements, migratory behavior, and site fidelity of West Indian manatees along the Atlantic coast of the United States
Software related to USGS marine mammal research is listed below.
- Overview
Marine mammals
Marine Mammals ResearchFilter Total Items: 41No results found. - Data
Recent data (2020-2022) related to USGS marine mammal research is listed below. A complete listing of USGS marine mammal data is available from the button below.
Filter Total Items: 53Energetic Costs of Locomotion in Bears
Oxygen consumption and kinematic measurement data and tri-axial acceleration measurement data from 2 captive polar bears and 7 captive grizzly bears resting and walkingMeasures of oxygen consumption and stroke frequency of a captive subadult polar bear (Ursus maritimus) while resting in water and swimming and diving in a metabolic water flume, Oregon Zoo, 2017
This dataset contains measures of oxygen consumption and stroke frequency from 1 captive subadult female polar bear (166.5 kg) resting in the water (n = 7 sessions) and swimming and diving in a metabolic swim flume with water circulated at approximately 0.6 km/hr during swimming and diving measurements (n = 6 sessions) in September 2017.Sea Otter Aerial Survey Data from Glacier Bay National Park and Preserve, 1999-2012
The data package "Sea Otter Aerial Survey Data from Glacier Bay National Park and Preserve, 1999-2012" provides raw data for examining abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in Glacier Bay National Park and Preserve in southeast Alaska, based on data collected during a series of population-wide aerial surveys. The USGS aerial sea otter surveys have been completeAccelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016
This dataset includes accelerometer data collected on collars deployed on female polar bears in the southern Beaufort Sea from 2009-2016. The accelerometer was built in to collars by Telonics, Inc. and provides a single activity value of the number of seconds active per time interval of data collection. Data were collected every 15-30 minutes. GPS and ARGOs locations collected via collars were useAt-Sea Distribution and Abundance of Seabirds and Marine Mammals off Southern California GIS Resource Database: Aerial seabird and marine mammal surveys off southern California, 1999-2002
Background - Interest in developing alternative sources of renewable energy to reduce dependence on oil has increased in recent years. Some sources of renewable energy being considered will include power generation infrastructure and support activities located within continental shelf waters, and potentially within deeper waters off the U.S. Pacific coast and beyond state waters (i.e., outside thr - Publications
Recent publications (2020-2022) related to USGS marine mammal research are listed below. A complete listing of USGS marine mammal publications is available from the button below.
Filter Total Items: 54A Quantitative Threats Analysis for the Florida Manatee (Trichechus manatus latirostris)
The Florida manatee (Trichechus manatus latirostris) is an endangered marine mammal endemic to the southeastern United States. The primary threats to manatee populations are collisions with watercraft and the potential loss of warm-water refuges. For the purposes of listing, recovery, and regulation under the Endangered Species Act (ESA), an understanding of the relative effects of the principal tAuthorsMichael C. Runge, Carol A. Sanders-Reed, Catherine A. Langtimm, Christopher J. FonnesbeckPossible effects of the 2004 and 2005 hurricanes on manatee survival rates and movement
Abstract not supplied at this timeAuthorsC.A. Langtimm, M. D. Krohn, J. P. Reid, B.M. Stith, C.A. BeckCapture-recapture analysis for estimating manatee reproductive rates
Modeling the life history of the endangered Florida manatee (Trichechus manatus latirostris) is an important step toward understanding its population dynamics and predicting its response to management actions. We developed a multi-state mark-resighting model for data collected under Pollock's robust design. This model estimates breeding probability conditional on a female's breeding state in the pAuthorsW. L. Kendall, C.A. Langtimm, C.A. Beck, M.C. RungeA stage-based model of manatee population dynamics
A stage-structured population model for the Florida manatee (Trichechus manatus latirostris) was developed that explicitly incorporates uncertainty in parameter estimates. The growth rates calculated with this model reflect the status of the regional populations over the most recent 10-yr period. The Northwest and Upper St. Johns River regions have growth rates (8) of 1.037 (95% interval, 1.016?1.AuthorsM.C. Runge, C.A. Langtimm, W. L. KendallSurvival estimates for Florida manatees from the photo-identification of individuals
We estimated adult survival probabilities for the endangered Florida manatee (Trichechus manatus latirostris) in four regional populations using photoidentification data and open-population capture-recapture statistical models. The mean annual adult survival probability over the most recent 10-yr period of available estimates was as follows: Northwest - 0.956 (SE 0.007), Upper St. Johns River - 0.AuthorsC.A. Langtimm, C.A. Beck, H.H. Edwards, K.J. Fick-Child, B.B. Ackerman, S.L. Barton, W.C. HartleySeasonal movements, migratory behavior, and site fidelity of West Indian manatees along the Atlantic coast of the United States
The West Indian manatee (Trichechus manatus) is endangered by human activities throughout its range, including the U.S. Atlantic coast where habitat degradation from coastal development and manatee deaths from watercraft collisions have been particularly severe. We radio-tagged and tracked 78 manatees along the east coast of Florida and Georgia over a 12-year period (1986-1998). Our goals were toAuthorsC. J. Deutsch, J. P. Reid, R. K. Bonde, Dean E. Easton, H. I. Kochman, T. J. O'Shea - Software
Software related to USGS marine mammal research is listed below.