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张琛,王勇,张美文.2018.东方田鼠指名亚种和长江亚种筑巢行为.动物学杂志,53(5):673-681.
东方田鼠指名亚种和长江亚种筑巢行为
Comparison of Nesting Behavior among Two Subspecies of Microtus fortis
投稿时间:2017-12-26  修订日期:2018-08-15
DOI:10.13859/j.cjz.201805001
中文关键词:  东方田鼠  指名亚种  长江亚种  筑巢行为  适应性进化
英文关键词:Microtus fortis  M. f. fortis  M. f. calamorum  Nesting behavior  Adaptive evolution
基金项目:国家自然科学基金项目(No. 31170396)
作者单位E-mail
张琛 中国科学院亚热带农业生态研究所 shanyeyou78@qq.com 
王勇 中国科学院亚热带农业生态研究所 wangy@isa.ac.cn 
张美文 中国科学院亚热带农业生态研究所 zhangmw@isa.ac.cn 
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中文摘要:
      为了解东方田鼠(Microtus fortis)筑巢行为在不同环境条件下的适应性进化。在实验室内采用48 h等级法和连续144 h巢材获取重量法,比较了东方田鼠长江亚种(M. f. calamorumt)和指名亚种(M. f. fortis)筑巢行为。结果表明,东方田鼠指名亚种和长江亚种皆能主动获取巢材并建筑质量良好的巢,具有稳定的筑巢行为;东方田鼠两个亚种的筑巢行为在利用巢材能力(P < 0.01)和获取巢材能力(P < 0.05)上皆具有显著性差异;指名亚种雌雄个体在利用巢材(P < 0.05)和获取巢材的能力(P < 0.05)上皆具有显著差异,而长江亚种在这两个方面都不存在性别差异。
英文摘要:
      Adaptive evolution occurs rapidly under the environment demand and can be an important element in the evolution of animals. Former researches about the adaptive evolution of animals are most focus on the changes of morphological traits, but few studies have compared the behavior. Relative to morphological traits, we know little about the adaptive evolution of complex behavior in nature. To understood the difference for adaptive evolution, we tested the nesting behavior in two subspecies of Microtus fortis, M. f. fortis from Qingtongxia of Ningxia Hui Autonomous Region and M. f. calamorum that from Dongting Lake of Hunan province. In the present study, two methods were used to evaluate the nesting behavior of each vole: the 48 h nesting test for the ability of using nesting materials, which materials were contained in the cage, and we grade a point of the nest that build after 48 hours; the 144 h test for the ability of collecting nesting materials, which the weight of materials used by rodents can be recorded every 24 hours and during the test. Differences of nesting points and nesting materials weight between the two subspecies were analyzed by One-way ANOVA test. We found that two subspecies of M. fortis are both behaved strong capacity of nesting, actively acquired nesting materials, and build good quality nests. However, the nesting behavior is different significantly between two subspecies of M. fortis in their nesting point (P < 0.01, Fig. 2) and the nesting material weight (P < 0.05, Fig. 3). There is a significant difference in nesting point (P < 0.05) and nesting material weight (P < 0.05) between females and males of M. f. fortis; but the differences of the nesting behavior between the male and female individuals did not appear in M. f. calamorum. Our results indicated both the two subspecies of M. fortis have strong nesting requirements, and M. f. fortis own better nesting ability in terms of nesting materials usage and collection rather than M. f. calamorum. For these two closely related species, the difference of nesting behavior can also reflect the adaptive evolution to different environments.
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