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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/8383

Title: Aspects of peridomiciliary ecotopes in rural areas of Northeastern Brazil associated to triatomine (Hemiptera, Reduviidae) infestation, vectors of Chagas disease
Authors: Sarquis, Otília
Sposina, Ricardo
Oliveira, Tiago Guedes de
Cord, José Roberto Mac
Cabello, Pedro Hernan
Borges-Pereira, José
Lima, Marli Maria
Keywords: triatomines - ecotopes - peridomicile - Chagas disease - Northeastern Brazil
Issue Date: 31-Dec-2006
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 101 Num 2
Abstract: Artificial ecotopes of 121 peridomiciliary environments in four rural localities in the state of Ceará, Brazil, were studied and the type of material of the ecotopes was identified as triatomine infestation. Two thousand two hundred and four Triatoma brasiliensis   Neiva, 340 Triatoma pseudomaculata   Corrêa and Espínola, 121 Rhodnius nasutus   Stall, and 5 Panstrongylus lutzi   (Neiva and Pinto) were captured. Out of the 323 ecotopes found (x=2.0 ± 1.8 per dwelling) such as pigpens, henhouses, corrals, perches, dovecotes, piles of roofing tiles, bricks, wood, and straw 30.3% were infested by triatomines in all different developmental stages, including eggs. A substantial number of triatomines were found in perches, however the largest infestation took place in roofing materials used in the construction of goat/sheep corrals, henhouses, and pigpens, where 98% of them were captured: 1372 triatomines were located in the roofing tile covers, 285 in the straw, 187 in the perches, 77 in the coverings of roofing tiles and straw, and 13 in the straw and wood. Among all the different pile of materials, roofing tiles were the most infested (50%) followed by bricks (38.9%) and woods (36.1%). T. brasiliensis colonized mainly brick piles (χ2=16.539; p < 0.05) and roofing tiles (χ2=5,090.58; p < 0.05); T. pseudomaculata preferred wood perches (χ2= 472.39; p < 0.05) and woodpiles (χ2 =126.0 p < 0.05), and R. nasutus was principally found in roofing straw (χ2=384.43; p < 0.05). These findings suggest that triatomines tend to colonize peridomiciliary ecotopes similar to their original habitats.
URI: http://hdl.handle.net/1807/8383
Other Identifiers: http://www.bioline.org.br/abstract?id=oc06028
Rights: Copyright 2006 - Instituto Oswaldo Cruz - Fiocruz.
Appears in Collections:Bioline International Legacy Collection

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