Blood parasites of the ring-necked duck (Aythya collaris) on its winteringrange in Florida, USA

Citation
Dj. Forrester et al., Blood parasites of the ring-necked duck (Aythya collaris) on its winteringrange in Florida, USA, COMP PARASI, 68(2), 2001, pp. 173-176
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
COMPARATIVE PARASITOLOGY
ISSN journal
1525-2647 → ACNP
Volume
68
Issue
2
Year of publication
2001
Pages
173 - 176
Database
ISI
SICI code
1525-2647(200107)68:2<173:BPOTRD>2.0.ZU;2-T
Abstract
Five species of parasites were found in blood smears from 283 ring-necked d ucks, Aythya collaris (Donovan, 1809) overwintering in Florida. These inclu ded the following (with overall prevalences in parentheses): Haemoproteus n ettionis (Johnson and Cleland, 1909) (5.3%), Leucocytozoon simondi Mathis a nd Leger. 1910 (9.2%), Splendidofilaria fallisensis (Anderson, 1954) (39.2% ), and 2 unidentified species of filaroids, Species I (6.0%), and Species I I (13.8%). Ninety-seven ducks were infected with 1 species only, 43 with 2 species, and 8 with 3 species. The most common combined infection was L. si mondi and S. fallisensis, which occurred 15 times. Prevalences of H. nettio nis were significantly higher in ducks from the state's panhandle (far nort hwest) and north-central regions, whereas prevalences of L. simondi were hi gher in the panhandle. Microfilariae of unidentified Species II were more p revalent in the north-central and southern regions. Microfilariae of S. fal lisensis and the 2 unidentified species were more prevalent in female ducks than in mates. Leucocytozoon simondi was more prevalent in juvenile ducks than in adults, whereas the prevalences of the microfilariae of both uniden tified species were higher in adult ducks.