Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions

Triatominae are widely recognised for their role as vectors of Trypanosoma cruzi. One of the main biological characteristics of this subfamily is their obligate haematophagous condition. However, previous studies on Belminus herreri and Belminus ferroae suggested that cockroaches are their principal...

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Autores principales: Sandoval, C. M., Medone, Paula, Nieves, E. E., Jaimes, D. A., Ortiz, N., Rabinovich, Jorge Eduardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Naturales
Belminus
Demography
Life-history traits
Population parameters
Triatominae
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85643
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85643
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Belminus
Demography
Life-history traits
Population parameters
Triatominae
spellingShingle Ciencias Naturales
Belminus
Demography
Life-history traits
Population parameters
Triatominae
Sandoval, C. M.
Medone, Paula
Nieves, E. E.
Jaimes, D. A.
Ortiz, N.
Rabinovich, Jorge Eduardo
Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
topic_facet Ciencias Naturales
Belminus
Demography
Life-history traits
Population parameters
Triatominae
description Triatominae are widely recognised for their role as vectors of Trypanosoma cruzi. One of the main biological characteristics of this subfamily is their obligate haematophagous condition. However, previous studies on Belminus herreri and Belminus ferroae suggested that cockroaches are their principal hosts in domiciles. Due to this peculiar behaviour, the aim of this study was to analyse several demographic and reproductive parameters of B. ferroae fed on three different hosts (mice, cockroaches and Rhodnius prolixus) and relate B. ferroae fitness to these alternative hosts. The cohorts were reared under constant conditions. The egg hatching rate was similar for cohorts fed on cockroaches (69.4%) and R. prolixus (63.8%), but was much lower for the cohort fed on mice (16%). The development time from the nymph to adult stage and the average age of first reproduction (α) presented lower values in the cohort fed on cockroaches, which is consistent with the higher population growth rate associated with this host. Demographic parameters [intrinsic rate of natural increase, finite rate of population growth, net reproductive rate and damping ratio] showed statistically significant differences between the cohorts. Analysis of the life history of B. ferroae revealed a higher fitness related to the cockroach. The implications of these results for the origin of the subfamily are discussed.
format Articulo
Articulo
author Sandoval, C. M.
Medone, Paula
Nieves, E. E.
Jaimes, D. A.
Ortiz, N.
Rabinovich, Jorge Eduardo
author_facet Sandoval, C. M.
Medone, Paula
Nieves, E. E.
Jaimes, D. A.
Ortiz, N.
Rabinovich, Jorge Eduardo
author_sort Sandoval, C. M.
title Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
title_short Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
title_full Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
title_fullStr Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
title_full_unstemmed Demographic fitness of Belminus ferroae (Hemiptera: Triatominae) on three different hosts under laboratory conditions
title_sort demographic fitness of belminus ferroae (hemiptera: triatominae) on three different hosts under laboratory conditions
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85643
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