NDLI: Long-term variations in rodent abundance in a rural landscape of the Pampas, Argentina

Content Provider	Springer Nature Link
Author	Fraschina, Jimena León, Vanina A. Busch, María
Copyright Year	2011
Abstract	The goal of this study was to analyze the variations in abundance of rodent communities over the last 24 years in a rural area, and their relation to possible changes in climatic variables and land use. The principal change in the area observed along the study period was an increase in the area covered by soybean. The habitats studied were crop fields and borders. The total abundance of rodents did not show a significant trend of variation over time in crop fields while in borders the abundance in autumn–winter (A–W) showed a significant trend to decrease over time. The different rodent species showed a differential response over time. While Calomys laucha and C. musculinus showed a decrease between the period before and after the soybean expansion, Akodon azarae did not change its abundance over time. The mean minimum temperature increased over time while the number of days with frost decreased. Total rodent abundance in A–W was positively associated with the cumulated precipitation of the previous spring–summer period and negatively with the cumulated precipitation of the same period. We conclude that rodent abundance variations in crop fields and borders of the study area are influenced by precipitation, but the observed trends of variation over time are better explained by changes in agricultural practices than by meteorological variables.
Starting Page	191
Ending Page	202
Page Count	12
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	27
Issue Number	1
e-ISSN	14401703
Language	English
Publisher	Springer Japan
Publisher Date	2011-10-29
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rodent communities Land use Climate variation Agroecosystems Ecology Zoology Forestry Plant Sciences Evolutionary Biology Behavioural Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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