Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus

Several triatomine species aggregate over conspecific faeces. In some domestic species, this behaviour might help individuals to find their refuges because faeces are usually deposited around such places. In the present study, the defaecation behaviour of the triatomine bug Rhodnius prolixus Stål (H...

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Autores principales: Lorenzo Figueiras, Alicia Nieves, Manrique, Gabriel
Publicado: 2016
Materias:
Defaecation pattern
Faeces
Refuge marking
Triatominae
aggregation behavior
conspecific
excretion
habitat selection
insect
marking method
nutritional status
olfactory cue
refuge
signal
spatiotemporal analysis
Heteroptera reduviidae
Hexapoda
Rhodnius prolixus
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v41_n1_p24_Falvo
http://hdl.handle.net/20.500.12110/paper_03076962_v41_n1_p24_Falvo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03076962_v41_n1_p24_Falvo
record_format dspace
spelling paper:paper_03076962_v41_n1_p24_Falvo2023-06-08T15:31:33Z Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus Lorenzo Figueiras, Alicia Nieves Manrique, Gabriel Defaecation pattern Faeces Refuge marking Triatominae aggregation behavior conspecific excretion habitat selection insect marking method nutritional status olfactory cue refuge signal spatiotemporal analysis Heteroptera reduviidae Hexapoda Rhodnius prolixus Triatominae Several triatomine species aggregate over conspecific faeces. In some domestic species, this behaviour might help individuals to find their refuges because faeces are usually deposited around such places. In the present study, the defaecation behaviour of the triatomine bug Rhodnius prolixus Stål (Heteroptera: Reduviidae) is described in detail, including the temporal pattern of aggregation of nymphs with different nutritional status to faeces of different post-deposition times. First, using an experimental arena, the spatial distribution of faecal deposition spots released by nymphs, in relation to the position of a refuge, is recorded. The results show that a high density of faeces is deposited inside the refuge, and few and distant spots, in relation to the position of the refuge, are dropped outside. Second, whether the aggregation behaviour of nymphs is altered by the time elapsed from deposition of the faeces, and by the nutritional status of the insects, is determined. The post-deposition time of the faeces strongly modulates the aggregation response of the insects. Differences in aggregation between fed and unfed insects are only marginally significant; however, different temporal windows of aggregation according to the post-deposition times of the faeces are demonstrated between bugs of different nutritional status. The results are discussed with respect to the relevance of the aggregation signal in relation to the characteristics of the natural refuges used by R. prolixus. © 2016 The Royal Entomological Society. Fil:Lorenzo Figueiras, A.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Manrique, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v41_n1_p24_Falvo http://hdl.handle.net/20.500.12110/paper_03076962_v41_n1_p24_Falvo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Defaecation pattern
Faeces
Refuge marking
Triatominae
aggregation behavior
conspecific
excretion
habitat selection
insect
marking method
nutritional status
olfactory cue
refuge
signal
spatiotemporal analysis
Heteroptera reduviidae
Hexapoda
Rhodnius prolixus
Triatominae
spellingShingle Defaecation pattern
Faeces
Refuge marking
Triatominae
aggregation behavior
conspecific
excretion
habitat selection
insect
marking method
nutritional status
olfactory cue
refuge
signal
spatiotemporal analysis
Heteroptera reduviidae
Hexapoda
Rhodnius prolixus
Triatominae
Lorenzo Figueiras, Alicia Nieves
Manrique, Gabriel
Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
topic_facet Defaecation pattern
Faeces
Refuge marking
Triatominae
aggregation behavior
conspecific
excretion
habitat selection
insect
marking method
nutritional status
olfactory cue
refuge
signal
spatiotemporal analysis
Heteroptera reduviidae
Hexapoda
Rhodnius prolixus
Triatominae
description Several triatomine species aggregate over conspecific faeces. In some domestic species, this behaviour might help individuals to find their refuges because faeces are usually deposited around such places. In the present study, the defaecation behaviour of the triatomine bug Rhodnius prolixus Stål (Heteroptera: Reduviidae) is described in detail, including the temporal pattern of aggregation of nymphs with different nutritional status to faeces of different post-deposition times. First, using an experimental arena, the spatial distribution of faecal deposition spots released by nymphs, in relation to the position of a refuge, is recorded. The results show that a high density of faeces is deposited inside the refuge, and few and distant spots, in relation to the position of the refuge, are dropped outside. Second, whether the aggregation behaviour of nymphs is altered by the time elapsed from deposition of the faeces, and by the nutritional status of the insects, is determined. The post-deposition time of the faeces strongly modulates the aggregation response of the insects. Differences in aggregation between fed and unfed insects are only marginally significant; however, different temporal windows of aggregation according to the post-deposition times of the faeces are demonstrated between bugs of different nutritional status. The results are discussed with respect to the relevance of the aggregation signal in relation to the characteristics of the natural refuges used by R. prolixus. © 2016 The Royal Entomological Society.
author Lorenzo Figueiras, Alicia Nieves
Manrique, Gabriel
author_facet Lorenzo Figueiras, Alicia Nieves
Manrique, Gabriel
author_sort Lorenzo Figueiras, Alicia Nieves
title Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
title_short Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
title_full Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
title_fullStr Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
title_full_unstemmed Spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine Rhodnius prolixus
title_sort spatio-temporal analysis of the role of faecal depositions in aggregation behaviour of the triatomine rhodnius prolixus
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v41_n1_p24_Falvo
http://hdl.handle.net/20.500.12110/paper_03076962_v41_n1_p24_Falvo
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AT manriquegabriel spatiotemporalanalysisoftheroleoffaecaldepositionsinaggregationbehaviourofthetriatominerhodniusprolixus
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