Wright, Scott D.: SEE ALSO Ackerman et al., 1995; Bossart et al., 1998; Bradley et al., 1993; Duignan et al., 1995; Sweat et al., 2001; Wright, Irene E., et al., 1998.
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Bradley, Janice L.; Wright, Scott D.; McGuire, Peter M.
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1993 |
The Florida manatee: cytochrome b DNA sequence.
Mar. Mamm. Sci. 9(2): 197-202. 1 fig. Apr. 14, 1993.
–DNA from three individuals, representing both Atlantic and Gulf coasts of Florida, showed no within-sample variation. Two amino acid loci, otherwise invariant among more than 20 mammal species, are altered identically in the manatee and the African elephant.
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Ackerman, Bruce B.; Wright, Scott D.; Bonde, Robert K.; Odell, Daniel Keith; Banowetz, Donna J.
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1995 |
Trends and patterns in mortality of manatees in Florida, 1974-1992. 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: 223-258. 23 tabs. 10 figs. Aug. 1995.
–Abstr. in O'Shea et al. (1992: 22). Statistical analysis of data from over 2,000 recovered carcasses shows a 5.9%/yr. increase in number of carcasses, 9.3%/yr. increase in deaths from watercraft collisions, 11.9%/yr. increase in perinatal deaths, and no significant change in other human-related causes of death. Geographical and seasonal patterns in mortality are also documented, as are catastrophic die-offs. Threats to manatees and their habitat are expected to increase.
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Duignan, Pádraig J.; House, Carol; Walsh, Michael T.; Campbell, Terry; Bossart, Gregory D.; Duffy, Noel; Fernandes, Peter J.; Rima, Bert K.; Wright, Scott D.; Geraci, Joseph R.
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1995 |
Morbillivirus infection in manatees.
Mar. Mamm. Sci. 11(4): 441-451. 1 tab. 1 fig. Oct. 26, 1995.
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Wright, Scott D.; Ackerman, Bruce B.; Bonde, Robert K.; Beck, Cathy A.; Banowetz, Donna J.
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1995 |
Analysis of watercraft-related mortality of manatees in Florida, 1979-1991. 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: 259-268. 2 tabs. 8 figs. Aug. 1995.
–Abstr. in O'Shea et al. (1992: 23).
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Bossart, Gregory D.; Baden, Daniel G.; Ewing, Ruth Y.; Roberts, Brenda; Wright, Scott D.
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1998 |
Brevetoxicosis in manatees (Trichechus manatus latirostris) from the 1996 epizootic: gross, histologic, and immunohistochemical features.
Toxicologic Pathology 26(2): 276-282. 2 figs. Mar.-Apr. 1998.
–Concludes that brevetoxicosis from exposure to red tide "was a component of and likely played a central role in the 1996 manatee epizootic." Such deaths can result from neurointoxication and/or hemopathy caused by chronic ingestion and/or inhalation of red tide toxins. Unlike the 1982 epizootic, ingestion of ascidians was not a prominent finding in the 1996 necropsies, wherein upper respiratory tract lesions were "the only severe and consistent inflammatory lesions seen".
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Wright, Irene Elizabeth; Wright, Scott D.; Sweat, James M.
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1998 |
Use of passive integrated transponder (PIT) tags to identify manatees (Trichechus manatus latirostris).
Mar. Mamm. Sci. 14(3): 641-645. "July 1998" (mailed June 16, 1998).
–Describes the development of methods and early results of use of PIT tags, concluding that they effectively complement other methods of identifying animals that are in hand (captive or dead).
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Joly, Damien O.; Heisey, Dennis M.; Samuel, Michael D.; Ribic, Christine A.; Thomas, Nancy J.; Wright, Scott D.; Wrigh, Irene E.
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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).
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Bando, Monica; Larkin, Iskande V.; Wright, Scott D.; Greiner, Ellis C.
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2014 |
Diagnostic stages of the parasites of the Florida Manatee, Trichechus manatus latirostris.
Jour. Parasitology 100(1): 133-138. 1 tab. 8 figs. DOI:10.1645/13-206.1. Oct. 3, 2013.
–ABSTRACT: Limited information is available on diagnostic stages of parasites in Florida manatees (Trichechus manatus latirostris). We examined 67 fecal samples from captive and wild manatees to define the diagnostic stages of the parasite fauna known to occur in Florida manatees. Parasite eggs were freshly extracted ex utero from identified mature helminths and subsequently characterized, illustrated, and matched to those isolated from fecal samples. In addition, coccidian oocysts in the fecal samples were identified. These diagnostic stages included eggs from 5 species of trematodes (Chiorchis fabaceus, Chiorchis groschafti, Pulmonicola cochleotrema, Moniligerum blairi, and Nudacotyle undicola), 1 nematode (Heterocheilus tunicatus), and oocysts of 2 coccidians (Eimeria manatus and Eimeria nodulosa).
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Bibliography and Index of the Sirenia and Desmostylia 