干旱区生态环境知识资源中心(Arid): Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach

Arid

DOI	10.1371/journal.pntd.0009579
	Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach
	Cardozo, Miriam; Gaston Fiad, Federico; Beatriz Crocco, Liliana; Eladio Gorla, David
通讯作者	Cardozo, M (corresponding author), Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Inst Invest Biol & Tecnol IIBYT CONICET, Catedra Introducc Biol, Cordoba, Argentina.
来源期刊	PLOS NEGLECTED TROPICAL DISEASES
ISSN	1935-2735
出版年	2021
卷号	15 期号:7
英文摘要	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 Cordoba 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. Author summary Triatoma infestans is the main vector of Trypanosoma cruzi, the causal agent of Chagas disease in the southern cone countries of South America. A number of sylvatic species of triatomines have been reported dispersing actively into man-made habitats. The study of the ecological mechanisms associated with the active dispersion of sylvatic triatomines into domestic environments becomes relevant in terms of the potential risk of T. cruzi introduction from the wild cycle into the domestic transmission cycle. Anthropic modification of the landscape is mentioned as one of the possible causes of the increase in the active dispersion, due to the negative impact of habitat fragmentation on the availability of food sources (populations of birds and mammals) and wild ecotopes for sylvatic triatomines. Before the present study there have been no evidences testing this hypothesis. Previous authors focused on determining the effect of environmental disturbance considering one geographical scale. In this article we describe the occurrence and frequency of sylvatic triatomines invasion into rural houses, and discuss the effect of habitat fragmentation considering a multiple landscape-scale approach. This approach allowed testing the effect of compositional and configurational landscape properties around the house and environmental anthropic disturbance, among other ecological factors.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000677730400003
WOS关键词	LAND-USE CHANGE ; CHAGAS-DISEASE ; HEMIPTERA REDUVIIDAE ; TRYPANOSOMA-CRUZI ; ACTIVE DISPERSAL ; GRAN-CHACO ; ARID CHACO ; INFESTANS ; GUASAYANA ; VECTOR
WOS类目	Infectious Diseases ; Parasitology ; Tropical Medicine
WOS研究方向	Infectious Diseases ; Parasitology ; Tropical Medicine
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368634
作者单位	[Cardozo, Miriam; Gaston Fiad, Federico; Beatriz Crocco, Liliana] Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Inst Invest Biol & Tecnol IIBYT CONICET, Catedra Introducc Biol, Cordoba, Argentina; [Eladio Gorla, David] Univ Nacl Cordoba, Inst Diversidad & Ecol Anim IDEA CONICET, Grp Ecol & Control Vectores, Cordoba, Argentina
推荐引用方式 GB/T 7714	Cardozo, Miriam,Gaston Fiad, Federico,Beatriz Crocco, Liliana,et al. Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach[J],2021,15(7).
APA	Cardozo, Miriam,Gaston Fiad, Federico,Beatriz Crocco, Liliana,&Eladio Gorla, David.(2021).Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach.PLOS NEGLECTED TROPICAL DISEASES,15(7).
MLA	Cardozo, Miriam,et al."Effect of habitat fragmentation on rural house invasion by sylvatic triatomines: A multiple landscape-scale approach".PLOS NEGLECTED TROPICAL DISEASES 15.7(2021).