小泡巨鼠和社鼠对珍稀濒危植物红豆树种子的捕食和扩散作用

doi:10.3724/SP.J.1003.2011.04197

生物多样性 ›› 2011, Vol. 19 ›› Issue (1): 93-96. DOI: 10.3724/SP.J.1003.2011.04197

小泡巨鼠和社鼠对珍稀濒危植物红豆树种子的捕食和扩散作用

刘鑫¹^,², 王政昆¹, 肖治术²^,^*()

1 云南师范大学生命科学学院, 云南省能源与环境生物技术重点实验室, 昆明 650092
2 中国科学院动物研究所农业虫鼠害综合治理研究国家重点实验室, 北京 100101

收稿日期:2010-08-12 接受日期:2010-09-26 出版日期:2011-01-20 发布日期:2011-04-01
通讯作者: 肖治术
作者简介:*E-mail: xiaozs@ioz.ac.cn
基金资助:
国家基础规划项目“973”(2007CB109102);中国科学院知识创新工程青年人才领域前沿项目

Patterns of seed predation and dispersal of an endangered rare plant Ormosia hosiei by Edward’s long-tailed rats and Chinese white-bellied rats

Xin Liu¹^,², Zhengkun Wang¹, Zhishu Xiao²^,^*()

1 School of Life Science of Yunnan Normal University, The Key Laboratory of Biomass Energy and Environment Biological Technology in Yunnan Province, Kunming 650092
2 State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101

Received:2010-08-12 Accepted:2010-09-26 Online:2011-01-20 Published:2011-04-01
Contact: Zhishu Xiao

摘要/Abstract

摘要：

红豆树(Ormosia hosiei)为我国特有的国家II级保护珍稀濒危植物, 有关动物对种子的捕食和扩散作用是否影响其种群更新目前尚无研究。2009年秋季, 我们在四川省都江堰地区利用大型实验围栏研究了小泡巨鼠(Leopoldamys edwardsi)和社鼠(Niviventor confucianus)对红豆树种子的捕食和贮藏格局, 以便了解鼠类在红豆树种子扩散中的潜在作用。结果表明小泡巨鼠和社鼠均取食红豆树种子, 但二者贮藏种子的方式不同: 社鼠主要集中贮藏种子, 对红豆树种子的扩散作用不大, 而小泡巨鼠则主要分散贮藏种子, 故对红豆树种子有一定的扩散作用。研究结果说明尽管鼠类可通过捕食而降低种子存活, 但分散贮藏的鼠种能促进红豆树种子的扩散, 从而有利于其种群维持。

关键词: Ormosia hosiei, Leopoldamys edwardsi, Niviventor confucianus, 分散贮藏, 种子扩散, 种子捕食, 自然更新

Abstract

Ormosia hosiei (Papilionaceae) is a rare and endangered plant native to China. Currently, it is not understood how seed predation and dispersal by animals affect natural regeneration of the species. During the autumn of 2009, we investigated patterns of predation and hoarding by Edward’s long-tailed rats (Leopoldamys edwardsi) and Chinese white-bellied rats (Niviventor confucianus) of Ormosia hosiei seeds using large semi-natural enclosures in Dujiangyan City of Sichuan Province, southwest China. Both rodent species ate Ormosia hosiei seeds, but their hoarding patterns differed. Chinese white-bellied rats larder-hoarded more seeds in the nest and thus may have a negative impact on seed dispersal while Edward’s long-tailed rats scatter-hoarded more seeds and thus may have a positive impact on seed dispersal. In conclusion, our study indicates that compared with other rodent species as seed predators, scatter-hoarding rodents as seed dispersers may play a significant role in seed dispersal and subsequent establishment of this endangered plant.

Key words: Ormosia hosiei, Edward’s long-tailed rat, Chinese white-bellied rat, scatter-hoarding, seed dispersal, seed predation, natural regeneration

刘鑫, 王政昆, 肖治术 (2011) 小泡巨鼠和社鼠对珍稀濒危植物红豆树种子的捕食和扩散作用. 生物多样性, 19, 93-96. DOI: 10.3724/SP.J.1003.2011.04197.

Xin Liu, Zhengkun Wang, Zhishu Xiao (2011) Patterns of seed predation and dispersal of an endangered rare plant Ormosia hosiei by Edward’s long-tailed rats and Chinese white-bellied rats. Biodiversity Science, 19, 93-96. DOI: 10.3724/SP.J.1003.2011.04197.

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链接本文: https://www.biodiversity-science.net/CN/10.3724/SP.J.1003.2011.04197

https://www.biodiversity-science.net/CN/Y2011/V19/I1/93

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参考文献 22

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小泡巨鼠和社鼠对珍稀濒危植物红豆树种子的捕食和扩散作用

Patterns of seed predation and dispersal of an endangered rare plant Ormosia hosiei by Edward’s long-tailed rats and Chinese white-bellied rats

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