云龙湖黄苇鳽雏鸟生长发育研究
时间:2018-12-16 17:41 来源:毕业论文 作者:毕业论文 点击:次
| 云龙湖黄苇鳽雏鸟生长发育研究摘要：2014年6月-7月,作者对徐州市云龙湖附近地区三个地点的黄苇鳽开展野外调查研究和测量记录，测量了体重、体长、翅长、嘴峰、嘴裂、跖长、最长趾、爪长8个生长指标，共记录了1-13日龄3巢12只37个观测数，并用Excel工具对数据进行了分析处理，求出了不同日龄黄苇鳽雏鸟的体重和各项外部器官的生长发育平均值，做出了各生长指标的生长曲线图，构建了Logistic模型,做出了体重与体长的相关性图。结果发现：黄苇鳽的初生体重约为7 g,初生体长约为7 cm,黄苇鳽雏鸟期的各个生长发育指标的生长曲线大都呈“慢快慢”或“快慢”趋势，拐点(相对生长率最大的时间点)大多集中在4-7d,因此可将黄苇鳽雏鸟生长发育时期分为三个阶段，分别为渐增期、快增期和缓增期。此外，体重与体长之间的线性相关性也十分显著（R2=0.9845）。31556 毕业论文关键词:黄苇鳽；雏鸟；生长发育；Logistic方程 Study on Growth and Development of Ixobrychus sinensis Nestlings of Yunlong Lake Ma Fangfei Guide teacher: Feng Zhaojun (Jiangsu Normal University, College of Life Science, Xuzhou, Jiangsu 221116). Abstract: June to July, 2014, in the three region near Xuzhou YunlongLake, the author conducted field investigation and measurement, recordsfor Ixobrychus sinensis, measures the body weight, body length, wing length, culmem length, rictus length, sole of the foot,the longest toe andclaws length total eight growth index, just recorded 13 nest, 1-13 age,37observation, use the Excel tool for data analysis and find out the weightand various external organ growth average of different age of Ixobrychus sinensis nestling, made the growth index of growth curve, constructed the Logistic model and made the correlation between nestlings’ weightand body length. The result showed that: Ixobrychus sinensis birth weight is about 7 g, the primary body length is about 7 cm, Ixobrychus sinensis nestling period of growth and development of various indicators ofgrowth curve are mostly showed a trend of “slow-fast-slow”or“fast-slow”,inflection point ( the largest relative growth rate) is mostly concentrated in 4 to 7 d. The growth of nestling period is pided into three stages,increasing period,fast growth period, slow growth period.In addtion, the correlation between body weight and body length was also significant(R2=0.9845). Key words: Ixobrychus sinensis; Nestling; Growth; Logistic equation 目录 引言 4 1 研究地区、材料与方法 5 1.1研究地区概况 5 1.2研究工具 5 1.3研究过程与方法 5 1.4数据处理方法 6 2 结果与分析 6 2.1雏鸟的生长 6 2.2雏鸟生长的形态学参数分析 7 2.2.1雏鸟不同日龄各生长指标的平均值 7 2.2.2雏鸟的生长曲线 7 2.2.3 雏鸟生长指标的Logistic方程. 8 2.3雏鸟体重与体长的相关性分析 11 3 讨论 11 3.1 生长发育先后顺序与生活习性的关系 11 3.2 观察研究过程需注意的问题 12 致谢 12 参考文献： 12 引言 黄苇鳽（学名：Ixobrychus sinensis，英文名Yellow Bittern），又名水骆驼，是鹳形目鹭科苇鳽属的鸟类，是苏北夏季常见的一种中型涉禽。经常活动于湖滩挺水植物丛中，羽色为淡土黄色[1]。雄鸟的额部、头顶、枕部和冠羽都呈铅黑色，稍夹杂了灰白色的纵纹，头侧、后颈和颈侧呈棕黄白色；雌鸟似雄鸟，但头顶为栗褐色，具有黑色纵纹。黄苇鳽栖息于平原和低山丘陵地带富有挺水植物的开阔水域中，尤其喜欢栖息在有大片芦苇和蒲草等水边植物的中小型湖泊、沼泽、水塘和水库中。 (责任编辑：qin) |