Bibliography and Index of the Sirenia and Desmostylia  

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"Heisey, Dennis M."

Heisey, Dennis M.: SEE Garrott et al., 1994, 1995. (detail)
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 Garrott, Robert A.; Ackerman, Bruce B.; Cary, John R.; Heisey, Dennis M.; Reynolds, John E., III; Rose, Patrick M.; Wilcox, J. Ross (detail)
   
1994
Trends in counts of Florida manatees at winter aggregation sites.
Jour. Wildl. Manage. 58(4): 642-654. 2 tabs. 3 figs. Oct. 1994.
–Analyzes data from aerial surveys, 1977-1992, and correlates manatee numbers with temperature covariates. Results indicate an increase in the counts at east-coast aggregation sites, but this may not reflect a real population trend.
 
 
 Garrott, Robert A.; Ackerman, Bruce B.; Cary, John R.; Heisey, Dennis M.; Reynolds, John E., III; Wilcox, J. Ross (detail)
   
1995
Assessment of trends in sizes of manatee populations at several Florida aggregation sites. In: T. J. O'Shea, B. B. Ackerman, & H. F. Percival (eds.), Population biology of the Florida manatee (q.v.).
Information & Technology Rept. (U.S. Dept. Interior, Natl. Biological Service) (vi + 289) 1: 34-55. 8 tabs. 14 figs. 2 apps. Aug. 1995.
–Abstr. in O'Shea et al. (1992: 15-16).
 
 
 Joly, Damien O.; Heisey, Dennis M.; Samuel, Michael D.; Ribic, Christine A.; Thomas, Nancy J.; Wright, Scott D.; Wrigh, Irene E. (detail)
   
2009
Estimating cause-specific mortality rates using recovered carcasses.
Journal of Wildlife Diseases 45(1): 122-127. 1 tab. Jan. 2009.
–ABSTRACT: Stranding networks, in which carcasses are recovered and sent to diagnostic laboratories for necropsy and determination of cause of death, have been developed to monitor the health of marine mammal and bird populations. These programs typically accumulate comprehensive, long-term datasets on causes of death that can be used to identify important sources of mortality or changes in mortality patterns that lead to management actions. However, the utility of these data in determining cause-specific mortality rates has not been explored. We present a maximum likelihood-based approach that partitions total mortality rate, estimated by independent sources, into cause-specific mortality rates. We also demonstrate how variance estimates are derived for these rates. We present examples of the method using mortality data for California sea otters (Enhydra lutris nereis) and Florida manatees (Trichechus manatus latirostris).
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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