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Scatter-hoarding rodents are better pilferers than larder-hoarders
Wang, Zhenyu; Wang, Bo; Yi, Xianfeng; Yan, Chuan; Cao, Lin; Zhang, Zhibin; Cao, L (reprint author), Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Mengla 666303, Yunnan, Peoples R China.
2018
Source PublicationANIMAL BEHAVIOUR
ISSN0003-3472
Volume141Issue:xPages:151-159
AbstractFood hoarding is critical to rodents for their survival and reproduction. However, the seeds cached by rodents often suffer heavy pilferage by competitors. Therefore, compensation for cache loss is crucial, especially for scatter-hoarding rodents, as they cannot aggressively defend their stored seeds, whereas larder-hoarding rodents can. Pilfering caches of other individuals may be an effective way to compensate for cache loss for rodents. Hence, cache pilfering is likely to be as important as hoarding to food-hoarding rodents. Scatter-hoarding rodents may rely on their olfactory abilities and explore a wide area to retrieve their cached seeds, which may help to increase the probability of encountering and pilfering others' caches, whereas it is not essential for larder-hoarding rodents. We hypothesized that rodents that showed stronger scatter-hoarding behaviour would be better pilferers. To test this hypothesis, we investigated the relationship between scatter-hoarding and pilferage behaviours among four coexisting species of rodents using seminatural enclosure experiments in southwest China. Both hoarding and cache pilfering differed significantly between the four species. The predominant scatter-hoarding rodents, red spiny rats, Maxomys surifer, had a strong cache-pilfering behaviour, whereas yellow-bellied rats, Rattus flavipectus, mainly adopted larder-hoarding strategies and had a weak cache-pilfering behaviour. Chinese white-bellied rats, NMI/enter confucianus, and chestnut rats, Niviventer fulvescens, had moderate scatter-hoarding and cache-pilfering behaviours. The intensity of cache pilfering was negatively correlated with the intensity of larder hoarding, but positively correlated with the intensity of scatter hoarding among the coexisting food-hoarding rodents. Our study suggests that the positive correlation between the intensities of scatter hoarding and cache pilfering is likely to facilitate reciprocal pilferage among scatter-hoarding rodents, which helps to maintain the stability of scatter-hoarding behaviour in these populations. (C) 2018 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.
Department其他
KeywordCache Pilferage Hoarding Behaviour Larder Hoarding Reciprocal Pilferage Scatter Hoarding Seed Dispersal
Subject AreaBehavioral Sciences ; Zoology
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11007
Collection2012年后新成立研究组
Corresponding AuthorCao, L (reprint author), Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Mengla 666303, Yunnan, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Zhenyu,Wang, Bo,Yi, Xianfeng,et al. Scatter-hoarding rodents are better pilferers than larder-hoarders[J]. ANIMAL BEHAVIOUR,2018,141(x):151-159.
APA Wang, Zhenyu.,Wang, Bo.,Yi, Xianfeng.,Yan, Chuan.,Cao, Lin.,...&Cao, L .(2018).Scatter-hoarding rodents are better pilferers than larder-hoarders.ANIMAL BEHAVIOUR,141(x),151-159.
MLA Wang, Zhenyu,et al."Scatter-hoarding rodents are better pilferers than larder-hoarders".ANIMAL BEHAVIOUR 141.x(2018):151-159.
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