Document Detail

Seed caching and cache pilferage by three rodent species in a temperate forest in the Xiaoxinganling Mountains.
MedLine Citation:
PMID:  23389982     Owner:  NLM     Status:  In-Data-Review    
Although differences in food-hoarding tactics both reflect a behavioral response to cache pilferage among rodent species and may help explain their coexistence, differentiation in cache pilfering abilities among sympatric rodents with different hoarding strategies is seldom addressed. We carried out semi-natural enclosure experiments to investigate seed hoarding tactics among three sympatric rodent species (Tamias sibiricus, Apodemus peninsulae and Clethrionomys rufocanus) and the relationship of their pilfering abilities at the inter- and intraspecific levels. Our results showed that T. sibiricus exhibited a relatively stronger pilfering ability than A. peninsulae and C. rufocanus, as indicated by its higher recovery rate of artificial caches. Meanwhile A. peninsulae showed a medium pilfering ability and C. rufocanus displayed the lowest ability. We also noted that both cache size and cache depth significantly affected cache recovery in all three species. T. sibiricus scatter-hoarded more seeds than it larder-hoarded, A. peninsulae larder-hoarded more than scatter-hoarded, and C. rufocanus acted as a pure larder-hoarder. In T. sibiricus, individuals with lower pilfering abilities tended to scatter hoard seeds, indicating an intraspecific variation in hoarding propensity. Collectively, these results indicated that sympatric rodent species seem to deploy different food hoarding tactics that allow their coexistence in the temperate forests, suggesting a strong connection between hoarding strategy and pilfering ability.
Ming-Ming Zhang; Zhen Shen; Guo-Qiang Liu; Xian-Feng Yi
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Dong wu xue yan jiu = Zoological research / "Dong wu xue yan jiu" bian ji wei yuan hui bian ji     Volume:  34     ISSN:  0254-5853     ISO Abbreviation:  Zool. Res.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100961499     Medline TA:  Dongwuxue Yanjiu     Country:  China    
Other Details:
Languages:  eng     Pagination:  E13-8     Citation Subset:  IM    
College of Agriculture, Henan University of Science and Technology, Luoyang 471003, China.
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