Thomas O'Shea, PhD (Former Employee)
Science and Products
Filter Total Items: 116
Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida
We summarize reproduction of adults and survival of calves and subadult Florida manatees (Trichechus manatus latirostris) that were identified in winter at Blue Spring on the upper St. Johns River in Florida. Some records span more than 20 years, but most are from 15-year continuous annual observations during winter 1978-79 through winter 1992-93. Fifty-seven, first-year calves were...
Authors
Thomas J. O'Shea, W.C. Hartley
Waterborne recreation and the Florida manatee Waterborne recreation and the Florida manatee
Abstract not supplied at this time
Authors
T. J. O'Shea
Reproduction and mortality of radio- tagged and recognizable manatees on the Atlantic Coast of Florida Reproduction and mortality of radio- tagged and recognizable manatees on the Atlantic Coast of Florida
Abstract not supplied at this time
Authors
J.P. Reid, R. K. Bonde, T. J. O'Shea
Florida manatees Florida manatees
The endangered Florida manatee (Trichechus manatus latirostris) is a survivor. It is one of only three living species of manatees which, along with their closest living relative, the dugong (Dugong dugon), make up the Order Sirenia. This taxonomic distinctiveness reflects their evolutionary and genetic uniqueness. Sirenians are the only herbivorous marine mammals; manatees feed on...
Authors
Lynn W. Lefebvre, Thomas J. O’Shea
Population biology of the Florida manatee Population biology of the Florida manatee
The Florida manatee (Trichechus manatus latirostris) is a unique element of the U.S. fauna. It is a distinct subspecies of the West Indian manatee (Domning and Hayek 1986) and one of the largest inshore mammals of the continent, reaching weights to 1,650 kg (Rathbun et al. 1990). Annual migratory circuits of some individuals through the intracoastal waterways of the Atlantic Coast are 1...
Authors
Bruce B. Ackerman, H. Franklin Percival
Can Dugongs Survive in Palau? Can Dugongs Survive in Palau?
In August 1991 we surveyed dugongs Dugong dugon in the coastal waters of Palau using methods similar to aerial surveys conducted in 1977, 1978 and 1983. Twenty-six dugongs (including four calves) were seen, a count within the range obtained previously. The rate at which dugongs were seen per unit flight-time was lower than for any of the other surveys, despite the observers being more...
Authors
H. Marsh, G. B. Rathbun, T. J. O'Shea, A.R. Preen
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast
We applied Cormack-Jolly-Seber open population models to manatee (Trichechus manatus latirostris) photo-identification databases to estimate adult survival probabilities. The computer programs JOLLY and RECAPCO were used to estimate survival of 677 individuals in three study areas: Crystal River (winters 1977-78 to 1990-91), Blue Spring (winters 1977-78 to 1990-91), and the Atlantic...
Authors
Thomas J. O'Shea, Catherine A. Langtimm
Integration of manatee life-history data and population modeling Integration of manatee life-history data and population modeling
Aerial counts and the number of deaths have been a major focus of attention in attempts to understand the population status of the Florida manatee (Trichechus manatus latirostris). Uncertainties associated with these data have made interpretation difficult. However, knowledge of manatee life-history attributes increased and now permits the development of a population model. We describe a
Authors
L.L. Eberhardt, Thomas J. O'Shea
Population biology of the Florida manatee: An overview Population biology of the Florida manatee: An overview
In the following overview we discuss progress toward meeting the three objectives of the 1992 workshop: to provide a synthesis of existing information about manatee population biology; to evaluate the strengths and weaknesses of current data sets and approaches to research on manatee population biology; and to provide recommendations for research. We discuss progress in six topics that...
Authors
Thomas J. O'Shea, B.B. Ackerman
Organochlorine and heavy metal contaminants in baleen whales: a review and evaluation of conservation implications Organochlorine and heavy metal contaminants in baleen whales: a review and evaluation of conservation implications
No abstract available.
Authors
Thomas J. O'Shea, R. L. Brownell
Non-USGS Publications**
Helm, R.C., D.P. Costa, T.D. DeBruyn, T.J. O'Shea, R.S. Wells, and T.M. Williams. 2015. Overview of effects of oil on marine mammals. P. 455-484, in M. Fingas (ed.) Handbook of Oil Spill Science and Technology. John Wiley & Sons, Inc., Hoboken, NJ
Luis, A.D., T.J. O'Shea, D.T.S. Hayman, J.L.N. Wood, A.A. Cunningham, A. T. Gilbert, J.N. Mills, and C.T. Webb. 2015. Network analysis of host-virus communities in bats and rodents reveals determinants of cross-species transmission. Ecology Letters 18:1153-1162. DOI: 10.1111/ele.12491
Marsh, H., T. O’Shea, and J. Reynolds. 2011. Ecology and conservation of the Sirenia: dugongs and manatees. Cambridge University Press, Cambridge, UK. 538 p.
O’Shea, T.J. 2014. Family Trichechidae. P. 548-562 in D.E. Wilson and R.A. Mittermeier, eds. Handbook of Mammals of the World 4. Sea Mammals. Lynx Editions, Barcelona.
Peel, A.J., J. R. C. Pulliam, A. D. Luis, R. K. Plowright, T. J. O’Shea, D. T. S. Hayman, J. L. N. Wood, C. T. Webb, and O. Restif. 2014. The effect of seasonal birth pulses on pathogen persistence in wild mammal populations. Proceedings of the Royal Society B-Biological Sciences B 281: 20132962 (pages 1-9).
Restif, O., Hayman, D.T.S., J.R.C. Pulliam, R.K. Plowright, D.B. George, A.D. Luis, A.A. Cunningham, R.A. Bowen, A.R. Fooks, T.J. O'Shea, J.L.N. Wood, and C.T. Webb. 2012. Model-guided fieldwork: practical guidelines for multidisciplinary research on wildlife ecological and epidemiological dynamics. Ecology Letters 15:1083-1094. DOI: 10.1111/j.1461-0248.2012.01836.x
Son, N.T., T.J. O’Shea, J.A. Gore, G. Csorba, V.T. Tu, T. Oshida, H. Endo, and M. Motokawa. 2016. Bats (Mammalia: Chiroptera) of the southeastern Truong Son Mountains, Quang Ngai Province, Vietnam. Journal of Threatened Taxa 8:8953-8969. DOI: httpdx.dofi.org/10.11609/jot.2785.8.7.8953-8969
Webber, Q.M.R., Brigham, R.M., Park, A.D., Gillam, E.H., O'Shea, T.J., and Willis, C.K.R. 2016, Social network characteristics and predicted pathogen transmission in summer colonies of female big brown bats (Eptesicus fuscus). Behavioral Ecology and Sociobiology 70: 701-712. DOI: 10.1007/s00265-016-2093-3
Woolf, A. and T. J. O'Shea. 1968. Two bighorn sheep-coyote encounters. Journal of Mammalogy 49: 770. DOI: 10.2307/1378747
Woolf, A., T. J. O'Shea and D. L. Gilbert. 1970. Movements and behavior of bighorn sheep on summer ranges in Yellowstone National Park. Journal of Wildlife Management 34: 446-450. DOI: 10.2307/3799031
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 116
Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida
We summarize reproduction of adults and survival of calves and subadult Florida manatees (Trichechus manatus latirostris) that were identified in winter at Blue Spring on the upper St. Johns River in Florida. Some records span more than 20 years, but most are from 15-year continuous annual observations during winter 1978-79 through winter 1992-93. Fifty-seven, first-year calves were...
Authors
Thomas J. O'Shea, W.C. Hartley
Waterborne recreation and the Florida manatee Waterborne recreation and the Florida manatee
Abstract not supplied at this time
Authors
T. J. O'Shea
Reproduction and mortality of radio- tagged and recognizable manatees on the Atlantic Coast of Florida Reproduction and mortality of radio- tagged and recognizable manatees on the Atlantic Coast of Florida
Abstract not supplied at this time
Authors
J.P. Reid, R. K. Bonde, T. J. O'Shea
Florida manatees Florida manatees
The endangered Florida manatee (Trichechus manatus latirostris) is a survivor. It is one of only three living species of manatees which, along with their closest living relative, the dugong (Dugong dugon), make up the Order Sirenia. This taxonomic distinctiveness reflects their evolutionary and genetic uniqueness. Sirenians are the only herbivorous marine mammals; manatees feed on...
Authors
Lynn W. Lefebvre, Thomas J. O’Shea
Population biology of the Florida manatee Population biology of the Florida manatee
The Florida manatee (Trichechus manatus latirostris) is a unique element of the U.S. fauna. It is a distinct subspecies of the West Indian manatee (Domning and Hayek 1986) and one of the largest inshore mammals of the continent, reaching weights to 1,650 kg (Rathbun et al. 1990). Annual migratory circuits of some individuals through the intracoastal waterways of the Atlantic Coast are 1...
Authors
Bruce B. Ackerman, H. Franklin Percival
Can Dugongs Survive in Palau? Can Dugongs Survive in Palau?
In August 1991 we surveyed dugongs Dugong dugon in the coastal waters of Palau using methods similar to aerial surveys conducted in 1977, 1978 and 1983. Twenty-six dugongs (including four calves) were seen, a count within the range obtained previously. The rate at which dugongs were seen per unit flight-time was lower than for any of the other surveys, despite the observers being more...
Authors
H. Marsh, G. B. Rathbun, T. J. O'Shea, A.R. Preen
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast
We applied Cormack-Jolly-Seber open population models to manatee (Trichechus manatus latirostris) photo-identification databases to estimate adult survival probabilities. The computer programs JOLLY and RECAPCO were used to estimate survival of 677 individuals in three study areas: Crystal River (winters 1977-78 to 1990-91), Blue Spring (winters 1977-78 to 1990-91), and the Atlantic...
Authors
Thomas J. O'Shea, Catherine A. Langtimm
Integration of manatee life-history data and population modeling Integration of manatee life-history data and population modeling
Aerial counts and the number of deaths have been a major focus of attention in attempts to understand the population status of the Florida manatee (Trichechus manatus latirostris). Uncertainties associated with these data have made interpretation difficult. However, knowledge of manatee life-history attributes increased and now permits the development of a population model. We describe a
Authors
L.L. Eberhardt, Thomas J. O'Shea
Population biology of the Florida manatee: An overview Population biology of the Florida manatee: An overview
In the following overview we discuss progress toward meeting the three objectives of the 1992 workshop: to provide a synthesis of existing information about manatee population biology; to evaluate the strengths and weaknesses of current data sets and approaches to research on manatee population biology; and to provide recommendations for research. We discuss progress in six topics that...
Authors
Thomas J. O'Shea, B.B. Ackerman
Organochlorine and heavy metal contaminants in baleen whales: a review and evaluation of conservation implications Organochlorine and heavy metal contaminants in baleen whales: a review and evaluation of conservation implications
No abstract available.
Authors
Thomas J. O'Shea, R. L. Brownell
Non-USGS Publications**
Helm, R.C., D.P. Costa, T.D. DeBruyn, T.J. O'Shea, R.S. Wells, and T.M. Williams. 2015. Overview of effects of oil on marine mammals. P. 455-484, in M. Fingas (ed.) Handbook of Oil Spill Science and Technology. John Wiley & Sons, Inc., Hoboken, NJ
Luis, A.D., T.J. O'Shea, D.T.S. Hayman, J.L.N. Wood, A.A. Cunningham, A. T. Gilbert, J.N. Mills, and C.T. Webb. 2015. Network analysis of host-virus communities in bats and rodents reveals determinants of cross-species transmission. Ecology Letters 18:1153-1162. DOI: 10.1111/ele.12491
Marsh, H., T. O’Shea, and J. Reynolds. 2011. Ecology and conservation of the Sirenia: dugongs and manatees. Cambridge University Press, Cambridge, UK. 538 p.
O’Shea, T.J. 2014. Family Trichechidae. P. 548-562 in D.E. Wilson and R.A. Mittermeier, eds. Handbook of Mammals of the World 4. Sea Mammals. Lynx Editions, Barcelona.
Peel, A.J., J. R. C. Pulliam, A. D. Luis, R. K. Plowright, T. J. O’Shea, D. T. S. Hayman, J. L. N. Wood, C. T. Webb, and O. Restif. 2014. The effect of seasonal birth pulses on pathogen persistence in wild mammal populations. Proceedings of the Royal Society B-Biological Sciences B 281: 20132962 (pages 1-9).
Restif, O., Hayman, D.T.S., J.R.C. Pulliam, R.K. Plowright, D.B. George, A.D. Luis, A.A. Cunningham, R.A. Bowen, A.R. Fooks, T.J. O'Shea, J.L.N. Wood, and C.T. Webb. 2012. Model-guided fieldwork: practical guidelines for multidisciplinary research on wildlife ecological and epidemiological dynamics. Ecology Letters 15:1083-1094. DOI: 10.1111/j.1461-0248.2012.01836.x
Son, N.T., T.J. O’Shea, J.A. Gore, G. Csorba, V.T. Tu, T. Oshida, H. Endo, and M. Motokawa. 2016. Bats (Mammalia: Chiroptera) of the southeastern Truong Son Mountains, Quang Ngai Province, Vietnam. Journal of Threatened Taxa 8:8953-8969. DOI: httpdx.dofi.org/10.11609/jot.2785.8.7.8953-8969
Webber, Q.M.R., Brigham, R.M., Park, A.D., Gillam, E.H., O'Shea, T.J., and Willis, C.K.R. 2016, Social network characteristics and predicted pathogen transmission in summer colonies of female big brown bats (Eptesicus fuscus). Behavioral Ecology and Sociobiology 70: 701-712. DOI: 10.1007/s00265-016-2093-3
Woolf, A. and T. J. O'Shea. 1968. Two bighorn sheep-coyote encounters. Journal of Mammalogy 49: 770. DOI: 10.2307/1378747
Woolf, A., T. J. O'Shea and D. L. Gilbert. 1970. Movements and behavior of bighorn sheep on summer ranges in Yellowstone National Park. Journal of Wildlife Management 34: 446-450. DOI: 10.2307/3799031
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government