Evaluation of habitat requirements of small rodents and effectiveness of an ecologically-based management in a hantavirus-endemic natural protected area in Argentina  

作　　者：María Victoria VADELL Francisco GARCÍA ERIZE Isabel Elisa GÓMEZ VILLAFAÑE 

机构地区：[1]Department of Ecology,Genetics and Evolution.Institute of Ecology,Genetics and Evolution(IEGEBA-CONICET).University of Buenos Aires,Buenos Aires,Argentina [2]Institute of Research and Environmental Engineering(3iA).University of San Martín,San Martín,Buenos Aires,Argentina

出　　处：《Integrative Zoology》2017年第1期77-94,共18页整合动物学（英文版）

摘　　要：Hantavirus pulmonary syndrome is a severe cardio pulmonary disease transmitted to humans by sylvan rodents found in natural and rural environments.Disease transmission is closely linked to the ecology of animal reservoirs and abiotic factors such as habitat characteristics,season or climatic conditions.The main goals of this research were:to determine the biotic and abiotic factors affecting richness and abundance of rodent species at different spatial scales,to evaluate different methodologies for studying population of small rodents,and to describe and analyze an ecologically-based rodent management experience in a highly touristic area.A 4-year study of small rodent ecology was conducted between April 2007 and August 2011 in the most relevant habitats of El Palmar National Park,Argentina.Management involved a wide range of control and prevention measures,including poisoning,culling and habitat modification.A total of 172 individuals of 5 species were captured with a trapping effort of 13860 traps-nights(1.24 individuals/100 traps-nights).Five rodent species were captured,including 2 hantavirus-host species,Oligoryzomys nigripes and Akodon azarae.Oligoryzomys nigripes,host of a hantavirus that is pathogenic in humans,was the most abundant species and the only one found in all the studied habitats.Our results are inconsistent with the dilution effect hypothesis.The present study demonstrates that sylvan rodent species,including the hantavirus-host species,have distinct local habitat selection and temporal variation patterns in abundance,which may influence the risk of human exposure to hantavirus and may have practical implications for disease transmission as well as for reservoir management.

关 键 词：ABUNDANCE disease prevention habitat use population dynamics ZOONOSIS 

分 类 号：Q95[生物学—动物学]