Defaunation affects the populations and diets of rodents in Neotropical   rainforests

doi:10.1016/j.biocon.2015.04.032

CORC > 北京大学 > 生命科学学院

	Defaunation affects the populations and diets of rodents in Neotropical rainforests
	Galetti, Mauro ; Guevara, Roger ; Neves, Carolina L. ; Rodarte, Raisa R. ; Bovendorp, Ricardo S. ; Moreira, Marcelo ; Hopkins, John B., III ; Yeakel, Justin D.
刊名	BIOLOGICAL CONSERVATION
	2015
关键词	Akodon Defaunation Oligoryzomys Zoonosis Diet overlap Trophic cascade WHITE-LIPPED PECCARIES AFRICAN SAVANNA AMAZONIAN FORESTS LARGE HERBIVORES ATLANTIC FOREST BRAZIL NICHE VERTEBRATES COMPETITION DIVERSITY
DOI	10.1016/j.biocon.2015.04.032
英文摘要	Most tropical rainforests have been defaunated of large-bodied mammals and the cascading effects of such extirpations have been poorly studied, particularly on other animals. We used a natural experiment in the Brazilian Atlantic rainforest to investigate the ecological responses of rodents to the functional extinction of a dominant terrestrial mammal, the white-lipped peccary (Tayassu pecan). We detected a 45% increase in the abundance and a decrease in diversity of rodents in defaunated forests. Two of these species (Akodon montensis and Oligoryzomys nigripes) are important hosts of Hantavirus, a lethal virus for humans. Stable isotope ratios (delta C-13 and delta N-15) derived from the hair of rodents and peccaries and their food resources indicate that at least two rodent species shifted to a diet more similar to peccaries in the defaunated forest. Because most tropical rainforests are facing dramatic extirpation of large mammals, we can expect changes in the composition and structure of small mammal communities with potential consequences for human health even in non-fragmented landscapes. (C) 2015 Elsevier Ltd. All rights reserved.; Fundacao de Amparo 'a Pesquisa do Estado de Sao Paulo - FAPESP [Proc. 2007/03392-6, 2014/01986-0]; CNPq; FAPESP; SCI(E); ARTICLE; mgaletti@rc.unesp.br; 2-7; 190
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416077]
专题	生命科学学院
推荐引用方式 GB/T 7714	Galetti, Mauro,Guevara, Roger,Neves, Carolina L.,et al. Defaunation affects the populations and diets of rodents in Neotropical rainforests[J]. BIOLOGICAL CONSERVATION,2015.
APA	Galetti, Mauro.,Guevara, Roger.,Neves, Carolina L..,Rodarte, Raisa R..,Bovendorp, Ricardo S..,...&Yeakel, Justin D..(2015).Defaunation affects the populations and diets of rodents in Neotropical rainforests.BIOLOGICAL CONSERVATION.
MLA	Galetti, Mauro,et al."Defaunation affects the populations and diets of rodents in Neotropical rainforests".BIOLOGICAL CONSERVATION (2015).