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人工饲养亚成体丹顶鹤群体夏、冬季行为的研究-生收物学;动物学专业毕业论文
CONTENTS
C ONTENTS
Abstract in Chinese.......................... .........................................................................................I Abstract in English.......................... ............. .......................................................................III l Introduction 1
1.1 Appearance and distribution red-crowned crane...........................................................。..。。1 1.2 Introduction ofhabitat.................................。。。。..。。。。...。。......。...,。。.........。.....................,.........1
1.3 Feeding habits ofred-crowned crane................................................................................2
1.4 Life history ofred-crowned crane............................................................ ...................2 1.5 The current protective status ofred-crowned cranes 2
1.5.1 The current status ofthe artificial rearing...............................................................2 1.5.2 The current protective status of wild population.....................................................3
1.6 The current research status ofred.crowned cranes 4
1.7 Winter behavior research of other birds .5
1.8 Animal welfare and species protection......................................... ............................... 7 1.9 The aim and significance of this experiment.....................................................................9
:}Materiais and Method.................. ............................................. ... ..... ..........................1() 2.1 Winter behavior observation ofcaptive sub·mature red-crowned crane.. .... .. ... ....10 2.1.1 Observation objects.. ..................................................................... ... ..........10 2.1.2 0bservation method 10
2.2 Winter behavior observation of semi-c
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