Effects of ENSO-linked clilmate and vegetation on population dynamics of sympatric rodent species in semiarid grasslands of Inner Mongolia, China
文献类型：SCI/SSCI论文
| 作者 | Zhang Z. |
| 发表日期 | 2011 |
| 关键词 | southern-oscillation index climate-change spatial synchrony flying squirrels small mammals responses precipitation outbreaks rainfall chile |
| 英文摘要 | El Nino Southern Oscillation (ENSO) linked climate has been known to be associated with several rodent species, but its effects on rodent community at both spatial and temporal scales are not well studied. In this study, we investigated the possible causal chain relating ENSO, precipitation, temperature, and vegetation index (normalized difference vegetation index, NDVI) to rodent abundance for 14 sympatric rodent species in 21 counties of semiarid grasslands in Inner Mongolia, China, from 1982 to 2006. We found that both precipitation and temperature showed a generally direct positive effect on rodent abundance in many species in the current year, but indirect effects that operate through NDVI in the current or following year could have a reverse effect on abundance. We described one ENSO-linked precipitation bottom-up chain and three ENSO-linked temperature bottom-up chains. These observed bottom-up links reveal that in El Nino years, or 1 year after La Nina years, or 2 years after El Nino years, ENSO-driven climate or vegetation factors tend to increase population abundances of many sympatric rodent species in this region. We also found time-lag effects and the life-history strategy (i.e., functional groups of hibernating behavior, activity rhythm, or food habits) also contribute to the observed complicated effects of SOT on precipitation, temperature, NDVI, and ultimately rodent abundance. |
| 出处 | Canadian Journal of Zoology-Revue Canadienne De Zoologie |
| 卷 | 89 |
| 期 | 8 |
| 页 | 678-691 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0008-4301 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23760]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhang Z.. Effects of ENSO-linked clilmate and vegetation on population dynamics of sympatric rodent species in semiarid grasslands of Inner Mongolia, China. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。