Robert Bonde, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 96
Seasonal 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 to
Authors
C. J. Deutsch, J. P. Reid, R. K. Bonde, Dean E. Easton, H. I. Kochman, T. J. O'Shea
Echeneid-sirenian associations, with information on sharksucker diet
Association of the sharksucker Echeneis naucrates and whitefin sharksucker E. neucratoides with the West Indian manatee Trichechus manatus and the dugong Dugong dugon is presented and discussed. Alimentary tract-content analysis and field observations suggest that coprophagy (feeding on host faecal material) may be the primary food source for echeneids associated with sirenian hosts.
Authors
E.H. Williams, A. A. Mignucci-Giannoni, Lucy Bunkley-Williams, R. K. Bonde, C. Self-Sullivan, A. Preen, V.G. Cockcroft
Evaluating the post-release success of rehabilitated manatees in Florida, 1973-2002
Abstract not supplied at this time
Authors
R. Bonde, L. Keith, L. Ward, J. Reid, T. Pitchford, C. Deutsch, M. Ross, J. Valade, N. Adimey
A first generation cytogenetic ideogram for the Florida manatee (Trichechus manatus latirostris) based on multiple chromosome banding techniques
Detailed chromosome studies were conducted for the Florida manatee (Trichechus manatus latirostris) utilizing primary chromosome banding techniques (G- and Q-banding). Digital microscopic imaging methods were employed and a standard G-banded karyotype was constructed for both sexes. Based on chromosome banding patterns and measurements obtained in these studies, a standard karyotype and ideogram a
Authors
B.A. Gray, Roberto T. Zori, P.M. McGuire, R. K. Bonde
Tagging and tracking
No abstract available.
Authors
Mark N. Landers, A. Westgate, Robert K. Bonde, M.J. Murray
Manatees in the Gulf of Mexico
The endangered Florida manatee (Trichechus manatus latirostris) inhabits rivers and estuaries along both coasts of Florida and, to a lesser extent, adjacent states (Figure 1). Since 1990, documented sightings of manatees outside of Florida have been increasing. This increase in sightings probably represents northward shifts in manatee distribution made possible by man-made sources of warm water (i
Authors
Robert K. Bonde, Lynn W. Lefebvre
Tucuxi (Sotalia fluviatilis) occurs in Nicaragua, 800 km north of its previously known range
No abstract available.
Authors
Thomas Carr, Robert K. Bonde
Manatee mortality in Puerto Rico
The most pressing problem in the effective management of the West Indian manatee (Trichechus manatus) in Puerto Rico is mortality due to human activities. We assessed 90 cases of manatee strandings in Puerto Rico based on historical data and a coordinated carcass salvage effort from 1990 through 1995. We determined patterns of mortality, including type of event, condition of carcasses, spatial and
Authors
A. A. Mignucci-Giannoni, R. A. Montoya-Ospina, N. M. Jimenez-Marrero, M. Rodriguez-Lopez, E.H. Williams, R. K. Bonde
Phylogeography of the West Indian manatee (Trichechus manatus): How many populations and how many taxa?
To resolve the population genetic structure and phylogeography of the West Indian manatee (Trichechus manatus), mitochondrial (mt) DNA control region sequences were compared among eight locations across the western Atlantic region. Fifteen haplotypes were identified among 86 individuals from Florida, Puerto Rico, the Dominican Republic, Mexico, Colombia, Venezuela, Guyana and Brazil. Despite the m
Authors
A. I. Garcia-Rodriguez, B.W. Bowen, D. Domning, A. A. Mignucci-Giannoni, M. Marmontel, R. A. Montoya-Ospina, B. Morales-Vela, M. Rudin, R. K. Bonde, P.M. McGuire
Radio-tracking manatees from land and space: tag design, implementation, and lessons learned from long-term study
West Indian manatees (Trichechus manatus) were tracked along the Atlantic coast of Florida and Georgia (N = 83 manatees, n = 439 tag deployments, 1986-1996) and in eastern Puerto Rico (N = 8, n = 43, 1992-1996) using conventional and satellite-based radio-telemetry systems. A floating radio-tag, attached by a flexible tether to a padded belt around the base of the tail, enabled us to track manatee
Authors
C. J. Deutsch, R. K. Bonde, J. P. Reid
Reproduction in free- ranging Florida manatees
Abstract not supplied at this time
Authors
G. B. Rathbun, J. P. Reid, R. K. Bonde, J. A. Powell
Trends and patterns in mortality of manatees in Florida, 1974-1991
Abstract not supplied at this time
Authors
B.B. Ackerman, S.D. Wright, R. K. Bonde, D.K. Odell, D.J. Banowetz
Science and Products
Filter Total Items: 96
Seasonal 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 to
Authors
C. J. Deutsch, J. P. Reid, R. K. Bonde, Dean E. Easton, H. I. Kochman, T. J. O'Shea
Echeneid-sirenian associations, with information on sharksucker diet
Association of the sharksucker Echeneis naucrates and whitefin sharksucker E. neucratoides with the West Indian manatee Trichechus manatus and the dugong Dugong dugon is presented and discussed. Alimentary tract-content analysis and field observations suggest that coprophagy (feeding on host faecal material) may be the primary food source for echeneids associated with sirenian hosts.
Authors
E.H. Williams, A. A. Mignucci-Giannoni, Lucy Bunkley-Williams, R. K. Bonde, C. Self-Sullivan, A. Preen, V.G. Cockcroft
Evaluating the post-release success of rehabilitated manatees in Florida, 1973-2002
Abstract not supplied at this time
Authors
R. Bonde, L. Keith, L. Ward, J. Reid, T. Pitchford, C. Deutsch, M. Ross, J. Valade, N. Adimey
A first generation cytogenetic ideogram for the Florida manatee (Trichechus manatus latirostris) based on multiple chromosome banding techniques
Detailed chromosome studies were conducted for the Florida manatee (Trichechus manatus latirostris) utilizing primary chromosome banding techniques (G- and Q-banding). Digital microscopic imaging methods were employed and a standard G-banded karyotype was constructed for both sexes. Based on chromosome banding patterns and measurements obtained in these studies, a standard karyotype and ideogram a
Authors
B.A. Gray, Roberto T. Zori, P.M. McGuire, R. K. Bonde
Tagging and tracking
No abstract available.
Authors
Mark N. Landers, A. Westgate, Robert K. Bonde, M.J. Murray
Manatees in the Gulf of Mexico
The endangered Florida manatee (Trichechus manatus latirostris) inhabits rivers and estuaries along both coasts of Florida and, to a lesser extent, adjacent states (Figure 1). Since 1990, documented sightings of manatees outside of Florida have been increasing. This increase in sightings probably represents northward shifts in manatee distribution made possible by man-made sources of warm water (i
Authors
Robert K. Bonde, Lynn W. Lefebvre
Tucuxi (Sotalia fluviatilis) occurs in Nicaragua, 800 km north of its previously known range
No abstract available.
Authors
Thomas Carr, Robert K. Bonde
Manatee mortality in Puerto Rico
The most pressing problem in the effective management of the West Indian manatee (Trichechus manatus) in Puerto Rico is mortality due to human activities. We assessed 90 cases of manatee strandings in Puerto Rico based on historical data and a coordinated carcass salvage effort from 1990 through 1995. We determined patterns of mortality, including type of event, condition of carcasses, spatial and
Authors
A. A. Mignucci-Giannoni, R. A. Montoya-Ospina, N. M. Jimenez-Marrero, M. Rodriguez-Lopez, E.H. Williams, R. K. Bonde
Phylogeography of the West Indian manatee (Trichechus manatus): How many populations and how many taxa?
To resolve the population genetic structure and phylogeography of the West Indian manatee (Trichechus manatus), mitochondrial (mt) DNA control region sequences were compared among eight locations across the western Atlantic region. Fifteen haplotypes were identified among 86 individuals from Florida, Puerto Rico, the Dominican Republic, Mexico, Colombia, Venezuela, Guyana and Brazil. Despite the m
Authors
A. I. Garcia-Rodriguez, B.W. Bowen, D. Domning, A. A. Mignucci-Giannoni, M. Marmontel, R. A. Montoya-Ospina, B. Morales-Vela, M. Rudin, R. K. Bonde, P.M. McGuire
Radio-tracking manatees from land and space: tag design, implementation, and lessons learned from long-term study
West Indian manatees (Trichechus manatus) were tracked along the Atlantic coast of Florida and Georgia (N = 83 manatees, n = 439 tag deployments, 1986-1996) and in eastern Puerto Rico (N = 8, n = 43, 1992-1996) using conventional and satellite-based radio-telemetry systems. A floating radio-tag, attached by a flexible tether to a padded belt around the base of the tail, enabled us to track manatee
Authors
C. J. Deutsch, R. K. Bonde, J. P. Reid
Reproduction in free- ranging Florida manatees
Abstract not supplied at this time
Authors
G. B. Rathbun, J. P. Reid, R. K. Bonde, J. A. Powell
Trends and patterns in mortality of manatees in Florida, 1974-1991
Abstract not supplied at this time
Authors
B.B. Ackerman, S.D. Wright, R. K. Bonde, D.K. Odell, D.J. Banowetz