阿拉善荒漠区五趾跳鼠不同年龄组体重与体尺特征的关系模型

doi:10.13859/j.cjz.201806001

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阿拉善荒漠区五趾跳鼠不同年龄组体重与体尺特征的关系模型
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                        10.13859/j.cjz.201806001
                    
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作者单位:内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院,内蒙古农业大学草原与资源环境学院
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基金项目:国家自然科学基金项目（No. 31772667，31602003，31560669），内蒙古自然科学基金项目（No. 2016MS0351）

The Age Groups Sectionalization of Five-Toed Jerboa (Allactaga sibirica) by Relational Model between Weight and Body Characteristics

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College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center,College of Grasslad and Resources Environment,Inner Mongolia Agricultural University,Key Laboratory of Prataculture and Grassland Resources,Ministry of Education,Inner Mongolia Agricultural University Rodent Research Center

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摘要:

啮齿动物年龄的划分对研究其年龄结构和种群数量变化等生态学特征具有重要的意义。利用体重来划分年龄组不仅对于野外实验研究方便快捷，而且能够较为真实地反映年龄与其形态特征指标的关系。五趾跳鼠（Allactaga sibirica）是我国北方分布较为广泛的啮齿动物之一，对其年龄组进行划分，是了解其生活史特征的有效方法。本文利用系统聚类法对2012至2014年在内蒙古阿拉善荒漠区捕获的五趾跳鼠体重进行分析，将五趾跳鼠划分为3个年龄组，Ⅰ龄组体重62 ~ 80 g（包括80 g），Ⅱ龄组体重80 ~ 110 g（不包括80，但包括110 g），Ⅲ龄组体重 > 110 g；并建立五趾跳鼠体重（W，g）与4个体尺特征指标体长（LB，mm）、尾长（LT，mm）、后足长（LP，mm）及耳长（LE，mm）的关系模型：Ⅰ龄组WⅠ =﹣1.032 + 0.137LB + 0.259LT，R2 = 0.244，AIC =﹣50.394 1，F = 0.005；Ⅱ龄组WⅡ = 0.072 + 0.099LB + 0.060LT + 0.214LP，R2 = 0.212，AIC =﹣131.021 5，F = 0.001。结果表明，五趾跳鼠的体尺指标在整个生长发育过程中并不是统一生长的，在特定阶段固定的体尺指标会开始生长。耳长在Ⅰ龄时已经完成生长或生长速度减缓；体长与尾长在Ⅰ龄时与体重具有较强的关系，在Ⅱ龄时生长速度减慢；后足长在Ⅱ龄时与体重关系较强，且生长速度加快；Ⅲ龄时体长、尾长和后足长停止生长或生长速度缓慢。荒漠区五趾跳鼠体重与体尺特征关系模型直观地反映了年龄与体尺特征的生长发育关系。

Abstract:

The sectionalization of rodent age have a far-reaching ecological significance for studying their age structure and population density variation. It is more convenience to identify rodent′s age by their body weight in the field study. Based on the systematic clustering method we weighed the body weight of five-toed jerboa captured in 2012﹣2014 and divided them into three different age groups (age group Ⅰ: 60﹣80 g; Age group Ⅱ: 80﹣110 g; Age group Ⅲ: > 110 g, Table 2). Then we established the relational model between weight and body characteristics, and group the captured ive-toed jerboa as three age groups: groupⅠ: WⅠ =﹣1.032 + 0.137LB + 0.259LT; age group Ⅱ: WⅡ = 0.072 + 0.099LB + 0.060LT + 0.214LP. Here, W is body weight, LB is body length, LT is tail length, Lp back feet length. Our results showed that the body characteristics, such body length, tail length, back feet were not simultaneously growing in their body growths process. One body characteristic may grow at a specific stage, such as the ear length was growing or growing slowly at the age. The body length and the tail length had a strong relationship with weight in the ageⅠ, then slowed down during the age stage Ⅱ. The Bacj feet length was strong related with body weight at age Ⅱ and accelerated growth rate at age Ⅱ. However the body length, tail length and back feed length eigher stopped growing or growing slow down at age Ⅲ.

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杨素文,张蓉,袁帅,付和平,纪羽,郭乾伟,温都苏,武晓东.2018.阿拉善荒漠区五趾跳鼠不同年龄组体重与体尺特征的关系模型.动物学杂志,53(6):833-840.

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收稿日期:2018-01-17
最后修改日期:2018-10-19
录用日期:2018-10-12
在线发布日期: 2018-11-23
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