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Search Results: 1 - 10 of 13562 matches for " Lopes Catarina Macedo "
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Ecology of mosquitoes (Diptera: Culicidae) in areas of Serra do Mar State Park, State of S?o Paulo, Brazil. II - Habitat distribution
Guimar?es, Anthony érico;Gentile, Carla;Lopes, Catarina Macedo;Mello, Rubens Pinto de;
Memórias do Instituto Oswaldo Cruz , 2000, DOI: 10.1590/S0074-02762000000100002
Abstract: the mosquito (diptera: culicidae) ecology was studied in areas of serra do mar state park, state of s?o paulo, brazil. systematized biweekly human bait collections were made three times a day, for periods of 2 or 3 h each, in sylvatic and rural areas for 24 consecutive months (january 1991 to december 1992). a total of 24,943 adult mosquitoes belonging to 57 species were collected during 622 collective periods. aedes scapularis, coquillettidia chrysonotum, cq. venezuelensis, wyeomyia dyari, wy. longirostris, wy. theobaldi and wy. palmata were more frequently collected at swampy and at flooded areas. anopheles mediopunctatus, culex nigripalpus, ae. serratus, ae. fulvus, psorophora ferox, ps. albipes and the sabethini in general, were captured almost exclusively in forested areas. an. cruzii, an. oswaldoi and an. fluminensis were captured more frequently in a residence area. however, cx. quinquefasciatus was the only one truly eusynanthropic. an. cruzii and ae. scapularis were captured feeding on blood inside and around the residence, indicating that both species, malaria and arbovirus vectors respectively, may be involved in the transmission of these such diseases in rural areas.
Ecology of mosquitoes (Diptera: Culicidae) in areas of Serra do Mar State Park, State of S?o Paulo, Brazil. I - Monthly frequency and climatic factors
Guimar?es, Anthony érico;Mello, Rubens Pinto de;Lopes, Catarina Macedo;Gentile, Carla;
Memórias do Instituto Oswaldo Cruz , 2000, DOI: 10.1590/S0074-02762000000100001
Abstract: the ecology of mosquitoes were studied (diptera: culicidae) in areas of serra do mar state park, state of s?o paulo, brazil. systematized monthly human bait collections were made three times a day, for periods of 2 or 3 h each, in sylvatic and rural areas for 24 consecutive months (january 1991 to december 1992). a total of 24,943 specimens of adult mosquitoes belonging to 57 species were collected during 622 collective periods. coquillettidia chrysonotum was the most frequent collected mosquito (45.8%) followed by aedes serratus (6.8%), cq. venezuelensis (6.5%), psorophora ferox (5.2) and ps. albipes (3.1%). the monthly averages of temperature and relative humidity were inserted in the ten-year average limits of maximum and minimum of the previous ten-years. rainfall accompanied the curve of the ten-year averages. those climatic factors were influential in the incidence of some species; temperature: anopheles cruzii, an. mediopunctatus, ae. scapularis, ae. fulvus, cq. chrysonotum, cq. venezuelensis, runchomyia reversa, wyeomyia dyari, wy. confusa, wy. shannoni, wy. theobaldi and limatus flavisetosus; relative humidity: ae. serratus, ae. scapularis, cq. venezuelensis and ru. reversa; rainfall: an. cruzii, ae. scapularis, ae. fulvus, cq. venezuelensis ru. reversa, wy. theobaldi and li. flavisetosus.
Prevalência de Anofelinos (Diptera: Culicidae) no Crepúsculo Vespertino em áreas da Usina Hidrelétrica de Itaipu, no Município de Guaíra, Estado do Paraná, Brasil
Guimar?es, Anthony érico;Mello, Rubens Pinto de;Lopes, Catarina Macedo;Alencar, Jeronimo;Gentile, Carla;
Memórias do Instituto Oswaldo Cruz , 1997, DOI: 10.1590/S0074-02761997000600004
Abstract: systematic collections of anophelines were conducted from november 1994 to august 1995 from 18:00 to 20:00 hr using shannon traps and human-bait along the lake margin which forms the itaipu hydroelectric reservoir, state of paraná, brazil. species prevalence was studied at 15 min intervals. anopheles albitarsis sensu latu and an. galvaoi, were the most frequently collected mosquitoes. all anopheles species populations peaked between 18:45 and 19:30 hr. the observations illustrate the existence of a haematophagic activity cycle during the early evening hours: exogenous stimulus (the beginning of sunset) ? shannon trap (light attraction) ? human bait (haematophagy) ? rest and digestion ? exogenous stimulus ? shannon trap or surrounding vegetation. the greater abundance of an. albitarsis collected in human-bait and shannon trap suggests it may be a potential malaria vector in the region
Ecology of mosquitoes (Diptera: Culicidae) in areas of Serra do Mar State Park, State of S?o Paulo, Brazil. III - daily biting rhythms and lunar cycle influence
Guimar?es, Anthony érico;Gentile, Carla;Lopes, Catarina Macedo;Mello, Rubens Pinto de;
Memórias do Instituto Oswaldo Cruz , 2000, DOI: 10.1590/S0074-02762000000600002
Abstract: the ecology of mosquito species (diptera: culicidae) was studied in areas of the serra do mar state park, state of s?o paulo, brazil. the influence of the lunar cycle and the daily biting rhythms of mosquito populations were analyzed. systematized biweekly human bait collections were made in a silvatic environment for 24 consecutive months (january 1991 to december 1992). a total of 20,591 specimens of adult mosquitoes belonging to 55 species were collected from 545 catches. sabethini species were captured exclusively during daylight periods, with the exception of trichoprosopon digitatum, while members of anophelinae predominated during nocturnal hours. members of the subfamily culicinae that were collected primary during nocturnal periods included culex nigripalpus, coquillettidia chrysonotum and cq. venezuelensis while daytime catches included psorophora ferox and ps. albipes. others members of culicines mosquitoes that were collected during both day and night included: aedes serratus, ae. scapularis and ae. fulvus. lunar cycles did not appear to influence the daily biting rhythms of most mosquito species in the area, but larger numbers of mosquitoes were collected during the new moon. ae. scapularis were captured mainly during the full moon.
Ecology of Anopheline (Diptera, Culicidae), malaria vectors around the Serra da Mesa Reservoir, State of Goiás, Brazil: 1 - Frequency and climatic factors
Guimar?es, Anthony érico;Gentile, Carla;Alencar, Jeronimo;Lopes, Catarina Macedo;Mello, Rubens Pinto de;
Cadernos de Saúde Pública , 2004, DOI: 10.1590/S0102-311X2004000100047
Abstract: the ecology of anopheline species (diptera, culicidae) was studied in the vicinity of the serra da mesa reservoir, state of goiás, brazil. climatic factors and frequency of anopheline populations were analyzed. bimonthly human-bait and shannon trap captures were conducted for 36 consecutive months (january 1997 through december 1999). a total of 5,205 adult anophelines belonging to five species were collected. anopheles darlingi was the most frequently collected anopheline (61.4%), followed by an. albitarsis s.l. (35.4%), an. triannulatus. (2.5%), an. oswaldoi (0.4%), and an. evansae (0.2%). the water level and vegetation along the banks of the reservoir were crucial to the frequency of the various anopheline species. climatic factors had a secondary influence. the reservoir's water-level stability, increased frequency of an. darlingi, and the arrival of gold prospectors were responsible for the increase in malaria cases.
Ecologia de mosquitos (Diptera, Culicidae) em áreas do Parque Nacional do Igua?u, Brasil: 1 - Distribui??o por hábitat
Guimar?es, Anthony érico;Lopes, Catarina Macedo;Mello, Rubens Pinto de;Alencar, Jeronimo;
Cadernos de Saúde Pública , 2003, DOI: 10.1590/S0102-311X2003000400032
Abstract: a study of the mosquito fauna in the igua?u national park focused on population behavior in four biotopes with different types of plant cover inside the park. systematic bimonthly diurnal and nocturnal human bait and shannon trap captures were conducted in both forest and domiciliary environments over the course of 24 months. a total of 20,273 adult mosquito specimens belonging to 44 species were collected: ochlerotatus serratus (10.3%), haemagogus leucocelaenus (9.7%), mansonia titillans (9.6%), and chagasia fajardoi (8.8%) were the most frequently captured mosquitoes. anopheles cruzii, runchomyia theobaldi, wyeomyia aporonoma, and wy. confusa were captured almost exclusively in well-preserved areas with dense forest cover. culex nigripalpus, oc. pennai, oc. serratus, sabethes purpureus, and sa. albiprivus were captured in three essentially sylvatic biotopes. species captured in the forest areas around a dam were: an. albitarsis s.l., an. galvaoi, an. evansae, an. fluminensis, coquillettidia venezuelensis, cq. juxtamansonia, wy. quasilongirostris, and onirion personatum, ch. fajardoi, cq. fasciolata, cq nitens, and ma. titillans were the most frequently captured species in a residential area.
Comparative biology of the two sister species of Triatominae (Hemiptera: Reduviidae)
Carbajal de la Fuente, Ana Laura;Cunha, Vanda;Rocha, Nathanielly;Lopes, Catarina Macedo;Noireau, Fran?ois;
Revista da Sociedade Brasileira de Medicina Tropical , 2010, DOI: 10.1590/S0037-86822010000100004
Abstract: introduction: triatoma pseudomaculata and t. wygodzinskyi (hemiptera: reduviidae: triatominae) are two brazilian vectors of chagas disease. the first is an arboricolous species in sylvatic environment and considered a vector of t. cruzi in peridomestic structures; the second, a rupicolous species in the wild environment of no epidemiological importance. in order to test the assumption that sister species share biological traits, comparative studies of their development cycle and blood ingestion were conducted. methods: eggs laid by five field females of each species were randomly selected. the nymphs were observed daily and fed on mice weekly. the time required to pass through the different stages to adulthood was recorded in days. the triatomines were weighed individually before and after feeding. the mortality rate according to each nymphal stage was calculated. results and conclusions: analysis of the results shows that they display only minor biological differences even though they exhibit a distinct ecology. this suggests that the biological traits are important criteria to determine the relationship between species.
Microscopia eletr nica de varredura de ovos de Haemagogus leucocelaenus (Diptera: Culicidae)
Alencar Jeronimo,Guimar?es Anthony érico,Mello Rubens Pinto,Lopes Catarina Macedo
Revista de Saúde Pública , 2003,
Abstract: OBJETIVO: Observar detalhes morfológicos de ovos de Haemagogus leucocelaenus visualizados pela primeira vez por microscopia eletr nica de varredura (MEV) e realizar morfometria das principais estruturas. MéTODOS: Foram utilizados ovos de Hg. leucocelaenus provenientes de fêmeas capturadas na Reserva Biológica do Tinguá, RJ, sendo parte destinada à eclos o e outra ao processamento de MEV, dos quais três foram submetidos à análise morfométrica. O material foi fixado em glutaraldeído 2,5% e pós-fixado em tetróxido de ósmio 1%, ambos em tamp o cacodilato de sódio 0.1M, pH 7.2, processado e observado ao MEV Jeol 5310. Medi es foram realizadas com o auxílio do software de análise Semafore. RESULTADOS: Os ovos apresentaram contorno elíptico com aproximadamente 574 μm de comprimento e 169 μm de largura, sendo o índice do ovo (l/wratio) 3,39 μm. O exocório é extremamente regular, possuindo ornamenta o hexagonal e algumas vezes pentagonal. Nas células cori nicas, observaram-se tubérculos simetricamente dispostos com rela o ao eixo longitudinal, e, no interior delas, tubérculos menores, individualizados, dispostos na periferia, e poucos agrupados no centro. A superfície do retículo cori nico n o apresentou rugosidades. O aparelho micropilar apresenta colar proeminente, contínuo, com disco micropilar bem evidente. CONCLUS ES: A ornamenta o do exocório apresenta diferen as em rela o aos tubérculos das células cori nicas e ao retículo cori nico externo entre os ovos de Hg. leucocelaenus comparados aos ovos de Hg. janthinomys e Hg. equinus, bem como com rela o aos de Aedes aegypti, Ae. albopictus e Ae bahamensis.
Prevalência de Anofelinos (Diptera: Culicidae) no Crepúsculo Vespertino em áreas da Usina Hidrelétrica de Itaipu, no Município de Guaíra, Estado do Paraná, Brasil
Guimar?es Anthony érico,Mello Rubens Pinto de,Lopes Catarina Macedo,Alencar Jeronimo
Memórias do Instituto Oswaldo Cruz , 1997,
Abstract: Systematic collections of anophelines were conducted from November 1994 to August 1995 from 18:00 to 20:00 hr using Shannon traps and human-bait along the lake margin which forms the Itaipu Hydroelectric reservoir, State of Paraná, Brazil. Species prevalence was studied at 15 min intervals. Anopheles albitarsis sensu latu and An. galvaoi, were the most frequently collected mosquitoes. All Anopheles species populations peaked between 18:45 and 19:30 hr. The observations illustrate the existence of a haematophagic activity cycle during the early evening hours: exogenous stimulus (the beginning of sunset) Shannon trap (light attraction) human bait (haematophagy) rest and digestion exogenous stimulus Shannon trap or surrounding vegetation. The greater abundance of An. albitarsis collected in human-bait and Shannon trap suggests it may be a potential malaria vector in the region
Ecology of mosquitoes (Diptera: Culicidae) in areas of Serra do Mar State Park, State of S o Paulo, Brazil. III - daily biting rhythms and lunar cycle influence
Guimar?es Anthony érico,Gentile Carla,Lopes Catarina Macedo,Mello Rubens Pinto de
Memórias do Instituto Oswaldo Cruz , 2000,
Abstract: The ecology of mosquito species (Diptera: Culicidae) was studied in areas of the Serra do Mar State Park, State of S o Paulo, Brazil. The influence of the lunar cycle and the daily biting rhythms of mosquito populations were analyzed. Systematized biweekly human bait collections were made in a silvatic environment for 24 consecutive months (January 1991 to December 1992). A total of 20,591 specimens of adult mosquitoes belonging to 55 species were collected from 545 catches. Sabethini species were captured exclusively during daylight periods, with the exception of Trichoprosopon digitatum, while members of Anophelinae predominated during nocturnal hours. Members of the subfamily Culicinae that were collected primary during nocturnal periods included Culex nigripalpus, Coquillettidia chrysonotum and Cq. venezuelensis while daytime catches included Psorophora ferox and Ps. albipes. Others members of culicines mosquitoes that were collected during both day and night included: Aedes serratus, Ae. scapularis and Ae. fulvus. Lunar cycles did not appear to influence the daily biting rhythms of most mosquito species in the area, but larger numbers of mosquitoes were collected during the new moon. Ae. scapularis were captured mainly during the full moon.
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