Winter survival of immature instars of Mansonia indubitans Dyar & Shannon and Mansonia titillans Walker (Diptera: Culicidae), in Buenos Aires, Argentina
Mem. Inst. Oswaldo Cruz
; 101(6): 591-596, Sept. 2006. graf, tab
Article
in English
| LILACS
| ID: lil-437050
Responsible library:
BR1.1
ABSTRACT
We conducted a whole year research on the ecology of Mansonia indubitans and Ma. titillans in Macáes Pond, Costanera Sur Reserve, Buenos Aires, Argentina. The usage of different floating plants by immature instars and their overwintering was analized. The percentage of usage of the available floating macrophytes (Pistia, Limnobium, and Salvinia) by the larvae and pupae was studied. Also, we defined positivity (P+) as the percentage of plants with immature instars for each plant genus on a monthly basis. Ma. immature instars were captured throughout the year and Pistia was the resource most commonly exploited by the mosquitoes. The percentage of fourth-instar larvae and pupae on Pistia roots with respect to total immature instars captured was assessed on a monthly and seasonal basis. The proportion of fourth-instar larvae and pupae from both species of Mansonia on water lettuce roots, showed significant differences between months and seasons. Our results suggest that the populations of Ma. indubitans and Ma. titillans in Macáes Pond, survive during winter mainly as fourth-instar larvae.
Full text:
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Collection:
International databases
Database:
LILACS
Main subject:
Plants
/
Seasons
/
Culicidae
Limits:
Animals
Country/Region as subject:
South America
/
Argentina
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2006
Document type:
Article
Affiliation country:
Argentina
/
Brazil
Institution/Affiliation country:
ANLIS "Dr. C.G. Malbrán"/AR
/
Consejo Nacional de Investigaciones Científicas y Técnicas/AR
/
Facultad de Agronomía/BR
/
Universidad de Buenos Aires/AR