干旱区生态环境知识资源中心(Arid): Rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in Kalmykian rangelands

Arid

DOI	10.1111/1749-4877.12392
	Rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in Kalmykian rangelands
	Surkova, Elena 1; Popov, Sergey 2; Tchabovsky, Andrey 1
通讯作者	Surkova, Elena
来源期刊	INTEGRATIVE ZOOLOGY
ISSN	1749-4877
EISSN	1749-4869
出版年	2019
卷号	14 期号:4 页码:410-420
英文摘要	Rodents play an important role in rangelands through the engineering of extensive burrow systems, which provides key habitats for many animal and plant species. We have analyzed the long-term variation in the abundance and distribution of rodent burrows in grazing ecosystems of southern Russia (Kalmykia) under the landscape change from desert to steppe caused by the drastic reduction of livestock after the collapse of the USSR in the early 1990s. We conducted burrow surveys in the desert (1980) and steppe (2017) periods on 19 3-km transects. We found considerable changes in burrow abundance and distribution, as well as evidence of desert habitat fragmentation and isolation caused by the expansion of tall-grass communities. Burrows of the open-dwelling diurnal ground squirrel (Spermophilus pygmaeus), the dominant and the keystone species during the desert period, almost completely disappeared from the rodent burrow network by 2017, indicating significant habitat loss. In contrast, the burrows of the folivorous social vole (Microtus socialis) which was rare in the 1980s, became abundant and ubiquitously distributed. The burrow density of the desert-dwelling psammophilous midday gerbil (Meriones meridianus) decreased, while the distances between occupied patches increased, indicating desert habitat fragmentation and loss of population connectivity. Burrows of the folivorous tamarisk gerbils (M. tamariscinus) were recorded only sporadically in both 1980 and 2017. The observed changes in the rodent burrow network, the key component of grazing ecosystems, correlate with rodent species ecology and can have long-term and important consequences for ecosystem functioning.
英文关键词	burrows fragmentation grazing impact keystone species rodents
类型	Article
语种	英语
国家	Russia
收录类别	SCI-E
WOS记录号	WOS:000477759700009
WOS关键词	VEGETATION STRUCTURE ; RESPONSE DIVERSITY ; SPECIES-DIVERSITY ; LAND-USE ; ABUNDANCE ; ECOSYSTEMS ; PREDATION ; COMMUNITY ; MAMMALS ; KAROO
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216311
作者单位	1.Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, 33 Leninskii Pr, Moscow 119071, Russia; 2.Lomonosov Moscow State Univ, Dept Vertebrate Zool, Moscow, Russia
推荐引用方式 GB/T 7714	Surkova, Elena,Popov, Sergey,Tchabovsky, Andrey. Rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in Kalmykian rangelands[J],2019,14(4):410-420.
APA	Surkova, Elena,Popov, Sergey,&Tchabovsky, Andrey.(2019).Rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in Kalmykian rangelands.INTEGRATIVE ZOOLOGY,14(4),410-420.
MLA	Surkova, Elena,et al."Rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in Kalmykian rangelands".INTEGRATIVE ZOOLOGY 14.4(2019):410-420.