Objective: Anopheles bellator e An. cruzii are vectors of the so-called bromeliad-malaria, typical of conserved areas. The objective was to evaluate the seasonal and vertical distribution of these anophelines, aiming at assessing the risk of malaria transmission.
Methods: In the municipality of Ilha Comprida, Southeastern Brazil, CDC light traps baited with dry ice were placed fortnightly from 17:00 to 20:00, at one, six and 12 meters high from September 2001 to September 2002. Association between An. bellator and An. cruzii densities and weather were assessed by Spearman coefficient and comparisons among heights and species densities were made by Mann-Whitney non-parametric test.
Results: A total of 55,226 mosquitoes were caught: 1,341 were An. bellator (2.4% of Culicidae), 278 at one meter, 261 at six meter and 802 at 12m high. Following the same sequence, An. cruzii was represented by 452, 1,032 and 4,420 adults, totalizing 5,904 mosquitoes (10.7%). There was a positive correlation between densities of both species and daily maximum temperature, and between density of An. bellator and thermal amplitude. The densities were higher for both species at tree canopy. At the three levels, the density of An. cruzii was higher.
Conclusions: The acrodendrophilic behavior of these species was confirmed, remarkably in An. cruzii. After aggressive measures of control, these anophelines have remained in this region, but they are not under entomological surveillance. The persistent transmission of malaria and increasing tourism activities in this region highlight the need for surveillance of these species.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/s0034-89102007000200014 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Rescue method for a stranded giant manta ray (Mobula birostris).
J Fish Biol
May 2024
Instituto de Pesquisas Cananéia, Cananéia, Brazil.
An opportunistic rescue of a stranded 6 m giant manta ray off Ilha Comprida, in São Paulo, southeastern Brazil, revealed a new technique for returning large bodied mobulid rays to the water once beached. The technique, adapted from protocols to move stranded cetaceans, was modified to suit the dorso-ventrally compressed shape of mobulid rays and reduce damage to the animal while being pulled back into deeper water. The method and suggestions for its improvement have been described with the intention of assisting in the rescue of other stranded large mobulids.
View Article and Find Full Text PDFCLINICO-PATHOLOGIC FINDINGS AND PATHOGEN SCREENING IN FUR SEALS (ARCTOCEPHALUS AUSTRALIS AND ARCTOCEPHALUS TROPICALIS) STRANDED IN SOUTHEASTERN BRAZIL, 2018.
J Wildl Dis
January 2022
Laboratório de Patologia Comparada de Animais Selvagens (LAPCOM), Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando Marques de Paiva 87, São Paulo, 05508-270, Brazil.
Among pinnipeds, four Otariidae species (eared seals) have been reported as occasional or frequent vagrants along the coast of Brazil, mainly in the southern region. These animals usually arrive debilitated during winter and are directed to rehabilitation. Nevertheless, available information on sanitary aspects of stranded pinnipeds in Brazil is limited.
View Article and Find Full Text PDFPathological Findings in Leatherback Sea Turtles (Dermochelys coriacea) During an Unusual Mortality Event in São Paulo, Brazil, in 2016.
J Comp Pathol
July 2020
Laboratório de Patologia Comparada de Animais Selvagens (LAPCOM), Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil; Texas A&M Veterinary Medical Diagnostic Laboratory, Texas, USA.
The leatherback sea turtle (LST; Dermochelys coriacea) is highly migratory and is primarily distributed throughout tropical and subtropical regions. The LST populations found in Brazil are critically endangered. An unusual mortality event occurred between August and November 2016 with 23 LSTs stranded along a 100 km coastal segment in Iguape, Ilha Comprida and Ilha do Cardoso in southern São Paulo state.
View Article and Find Full Text PDFBacterial and archaeal communities in bleached mottles of tropical podzols.
Microb Ecol
February 2015
Department of Soil Science, University of São Paulo, Piracicaba, São Paulo, 13418-900, Brazil.
Podzols frequently show bleached mottles depleted in organic matter, most readily visible in the Bh horizons. Even though the process of bleached mottles development is not understood, it has been suggested that the selective degradation of organic matter by soil microorganisms has a major contribution. In this study, we examined the bacterial and archaeal communities along three Brazilian coastal podzol profiles, as well as in bleached mottles and their immediate vicinity, using 16S rRNA gene profiling.
View Article and Find Full Text PDFSpatial distribution of arboviral mosquito vectors (Diptera, Culicidae) in Vale do Ribeira in the South-eastern Brazilian Atlantic Forest.
Cad Saude Publica
February 2012
Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brasil.
Mosquitoes are vectors of arboviruses that can cause encephalitis and hemorrhagic fevers in humans. Aedes serratus (Theobald), Aedes scapularis (Rondani) and Psorophora ferox (Von Humboldt) are potential vectors of arboviruses and are abundant in Vale do Ribeira, located in the Atlantic Forest in the southeast of the State of São Paulo, Brazil. The objective of this study was to predict the spatial distribution of these mosquitoes and estimate the risk of human exposure to mosquito bites.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!