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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/23685


Title: Vital statistics of Panstrongylus geniculatus (Latreille 1811) (Hemiptera: Reduviidae) under experimental conditions
Authors: Cabello, Daniel R.
Galindez, Itamar
Keywords: vital statistics - Triatominae - Venezuela - Panstrongylus geniculatus
Issue Date: 31-Dec-1998
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 93 Num 2
Abstract: A statistical evaluation of the population dynamics of Panstrongylus geniculatus is based on a cohort experiment conducted under controlled laboratory conditions. Animals were fed on hen every 15 days. Egg incubation took 21 days; mean duration of 1st, 2nd, 3rd, 4th, and 5th instar nymphs was 25, 30, 58, 62, and 67 days, respectively; mean nymphal development time was 39 weeks and adult longevity was 72 weeks. Females reproduced during 30 weeks, producing an average of 61.6 eggs for female on its lifetime; the average number of eggs/female/week was 2.1. Total number of eggs produced by the cohort was 1379. Average hatch for the cohort was 88.9%; it was not affected by age of the mother. Age specific survival and reproduction tables were constructed. The following population parameters were evaluated, generation time was 36.1 weeks; net reproduction rate was 89.4; intrinsic rate of natural increase was 0.125; instantaneous birth and death rates were 0.163 and 0.039 respectively; finite rate of increase was 1.13; total reproductive value was 1196 and stable age distribution was 31.2% eggs, 64.7% nymphs and 4.1% adults. Finally the population characteristics of P. geniculatus lead to the conclusion that this species is a K strategist.
URI: http://hdl.handle.net/1807/23685
Other Identifiers: http://www.bioline.org.br/abstract?id=oc98049
Rights: Copyright 1998 Fundacao Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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