Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.

After the decrease of the relative importance of Triatoma infestans, a number of studies reported the occurrence of sylvatic triatomines dispersing actively to domestic environments in the dry western Chaco Region of Argentina. Anthropic modification of the landscape is mentioned as one of the main...

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Autores principales:	Miriam Cardozo, Federico Gastón Fiad, Liliana Beatríz Crocco, David Eladio Gorla
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/6f1585871ecb4f6f9b6d7c24d895b6ff
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spelling	oai:doaj.org-article:6f1585871ecb4f6f9b6d7c24d895b6ff2021-12-02T20:23:46ZEffect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.1935-27271935-273510.1371/journal.pntd.0009579https://doaj.org/article/6f1585871ecb4f6f9b6d7c24d895b6ff2021-07-01T00:00:00Zhttps://doi.org/10.1371/journal.pntd.0009579https://doaj.org/toc/1935-2727https://doaj.org/toc/1935-2735After the decrease of the relative importance of Triatoma infestans, a number of studies reported the occurrence of sylvatic triatomines dispersing actively to domestic environments in the dry western Chaco Region of Argentina. Anthropic modification of the landscape is mentioned as one of the main causes of the increase in domicile invasion. The aim of this study was to describe the occurrence and frequency of sylvatic triatomines invading rural houses, and to evaluate the effect of habitat fragmentation and other ecological factors on the invasion of rural houses in central Argentina. We hypothesized that the decrease in food sources and the loss of wild ecotopes, as a consequence of habitat fragmentation, increase the chances of invasion by triatomines. The entomological data was collected by community-based vector surveillance during fieldwork carried out between 2017-2020, over 131 houses located in fourteen rural communities in the northwest of Córdoba Province (central Argentina). We used generalized linear models to evaluate the effect of (i) the environmental anthropic disturbance in the study area, (ii) the composition and configuration of the landscape surrounding the house, (iii) the spatial arrangement of houses, (iv) and the availability of artificial refuges and domestic animals in the peridomicile, on house invasion by triatomines. We report the occurrence of seven species of triatomines invading rural houses in the study area -T. infestans, T. guasayana, T. garciabesi, T. platensis, T. delpontei, T. breyeri and P. guentheri-. Study data suggest that invasion by triatomines occurs with higher frequency in disturbed landscapes, with houses spatially isolated and in proximity to subdivided fragments of forest. The availability of domestic refuges in the peridomestic structures as well as the presence of a higher number of domestic animals increase the chances of invasion by triatomines.Miriam CardozoFederico Gastón FiadLiliana Beatríz CroccoDavid Eladio GorlaPublic Library of Science (PLoS)articleArctic medicine. Tropical medicineRC955-962Public aspects of medicineRA1-1270ENPLoS Neglected Tropical Diseases, Vol 15, Iss 7, p e0009579 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270
spellingShingle	Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Miriam Cardozo Federico Gastón Fiad Liliana Beatríz Crocco David Eladio Gorla Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
description	After the decrease of the relative importance of Triatoma infestans, a number of studies reported the occurrence of sylvatic triatomines dispersing actively to domestic environments in the dry western Chaco Region of Argentina. Anthropic modification of the landscape is mentioned as one of the main causes of the increase in domicile invasion. The aim of this study was to describe the occurrence and frequency of sylvatic triatomines invading rural houses, and to evaluate the effect of habitat fragmentation and other ecological factors on the invasion of rural houses in central Argentina. We hypothesized that the decrease in food sources and the loss of wild ecotopes, as a consequence of habitat fragmentation, increase the chances of invasion by triatomines. The entomological data was collected by community-based vector surveillance during fieldwork carried out between 2017-2020, over 131 houses located in fourteen rural communities in the northwest of Córdoba Province (central Argentina). We used generalized linear models to evaluate the effect of (i) the environmental anthropic disturbance in the study area, (ii) the composition and configuration of the landscape surrounding the house, (iii) the spatial arrangement of houses, (iv) and the availability of artificial refuges and domestic animals in the peridomicile, on house invasion by triatomines. We report the occurrence of seven species of triatomines invading rural houses in the study area -T. infestans, T. guasayana, T. garciabesi, T. platensis, T. delpontei, T. breyeri and P. guentheri-. Study data suggest that invasion by triatomines occurs with higher frequency in disturbed landscapes, with houses spatially isolated and in proximity to subdivided fragments of forest. The availability of domestic refuges in the peridomestic structures as well as the presence of a higher number of domestic animals increase the chances of invasion by triatomines.
format	article
author	Miriam Cardozo Federico Gastón Fiad Liliana Beatríz Crocco David Eladio Gorla
author_facet	Miriam Cardozo Federico Gastón Fiad Liliana Beatríz Crocco David Eladio Gorla
author_sort	Miriam Cardozo
title	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
title_short	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
title_full	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
title_fullStr	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
title_full_unstemmed	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.
title_sort	effect of habitat fragmentation on rural house invasion by sylvatic triatomines: a multiple landscape-scale approach.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/6f1585871ecb4f6f9b6d7c24d895b6ff
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Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.

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