中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Repeated radicle pruning of Quercus mongolica acorns as a cache management tactic of Siberian chipmunks

文献类型:期刊论文

作者Yang, Yueqin1,2; Yi, Xianfeng1,3; Yu, Fei1
刊名acta ethologica
出版日期2012-04-01
卷号15期号:1页码:9-14
关键词Siberian chipmunks Radicle pruning Acorn storage Quercus mongolica
ISSN号0873-9749
中文摘要many rodents hoard seeds as a means of ensuring food availability during scarcity. siberian chipmunks (tamias sibiricus) feed on acorns of white oak quercus mongolica and hoard them for future use. such caches may deteriorate due to the early germination of the acorns in autumn, which can be inhibited by radicle pruning or embryo excision. siberian chipmunks are found to frequently prune the radicles of germinated acorns of q. mongolica; however, whether this behavior is a kind of cache management tactic remains unclear. here, we performed semi-natural enclosure and field experiments to test the role of radicle pruning in cache management of t. sibiricus. we found that t. sibiricus preferred non-germinated acorns and tended to prune radicles of germinating acorns when scatter-hoarding them, but did not perform the behavior of embryo excision by squirrels. both semi-natural enclosure and field experiments showed that t. sibiricus not only pruned radicles repeatedly but removed radicles varied in length from acorns, which significantly postponed acorn germination and radicle growth. these observations suggest that radicle pruning would be an evolutionary tactic for cache management of siberian chipmunks.
英文摘要many rodents hoard seeds as a means of ensuring food availability during scarcity. siberian chipmunks (tamias sibiricus) feed on acorns of white oak quercus mongolica and hoard them for future use. such caches may deteriorate due to the early germination of the acorns in autumn, which can be inhibited by radicle pruning or embryo excision. siberian chipmunks are found to frequently prune the radicles of germinated acorns of q. mongolica; however, whether this behavior is a kind of cache management tactic remains unclear. here, we performed semi-natural enclosure and field experiments to test the role of radicle pruning in cache management of t. sibiricus. we found that t. sibiricus preferred non-germinated acorns and tended to prune radicles of germinating acorns when scatter-hoarding them, but did not perform the behavior of embryo excision by squirrels. both semi-natural enclosure and field experiments showed that t. sibiricus not only pruned radicles repeatedly but removed radicles varied in length from acorns, which significantly postponed acorn germination and radicle growth. these observations suggest that radicle pruning would be an evolutionary tactic for cache management of siberian chipmunks.
WOS标题词science & technology ; life sciences & biomedicine
类目[WOS]behavioral sciences ; zoology
研究领域[WOS]behavioral sciences ; zoology
关键词[WOS]food perishability ; seedling growth ; tree squirrels ; grey squirrels ; tamias-amoenus ; small mammals ; dispersal ; oak ; germination ; adaptation
收录类别SCI
语种英语
WOS记录号WOS:000303014800002
公开日期2013-03-15
源URL[http://ir.nwipb.ac.cn/handle/363003/3690]  
专题西北高原生物研究所_中国科学院西北高原生物研究所
作者单位1.Henan Univ Sci & Technol, Coll Agr, Luoyang 471003, Peoples R China
2.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China
3.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Pest Management, Beijing 100101, Peoples R China
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GB/T 7714
Yang, Yueqin,Yi, Xianfeng,Yu, Fei. Repeated radicle pruning of Quercus mongolica acorns as a cache management tactic of Siberian chipmunks[J]. acta ethologica,2012,15(1):9-14.
APA Yang, Yueqin,Yi, Xianfeng,&Yu, Fei.(2012).Repeated radicle pruning of Quercus mongolica acorns as a cache management tactic of Siberian chipmunks.acta ethologica,15(1),9-14.
MLA Yang, Yueqin,et al."Repeated radicle pruning of Quercus mongolica acorns as a cache management tactic of Siberian chipmunks".acta ethologica 15.1(2012):9-14.

入库方式: OAI收割

来源:西北高原生物研究所

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