六种鹭鸟混群营巢地的调查

六种鹭鸟混群营巢地的调查朱红星,聂继山,赵耀宗安徽省扬子鳄繁殖研究中心宣州２４２０００在安徽省扬子鳄繁殖研究中心,每年春夏多种鹭科鸟类陆续迁入繁殖。数量之多,成为当地一大奇观。我们于１９９３年４－５月,对由６种鹭鸟（牛背鹭Ｂｕｂｕｌｃｕｓｉｂｉｓ,白...     

隼形目鹰科四种鸟类线粒体DNA研究

本实验采用ＡｐａＩ,ｆＢａｍＨＩ,ＢｇｉＩＩ,ＥｃｏＲＩ,ＥｃｏＲＶ,ＨｉｎｄⅢＨｐａＩ,ＫｐｎＩ,ＰｓｔＩ,ＰｒｕＩＩ,ＳａｌＩ,ＳｃａＩ,ＸｂａＩ和ＸｈｏＩ１４种限制性内切酶,对鹰科４种鸟类即雀鹰（Ａｃｃｉｐｉｔｅｒｎｉｓｕｓ）,松雀鹰（Ａ．ｖｉｒｇａｔｕｓ）苍鹰（Ａ．ｇｅｎｔｉｌｉｓ）和灰险鹰（Ｂｕｆｔａｔｕｒｉｎｄｉｃｕｓ）ｍｔＤＮＡ限制性片段长度多态分析。结果表明,４种鸟类中雀鹰和松１主     

四川省鸟类吸虫种类调查

四川鸟类寄生吸虫过去报道极少 ,我们于 1 980年以来 ,先后在一些县市和成都动物园解剖鸟类 1 0 0余种共 60 0多只 ,采得一些复殖吸虫 ,已鉴定出 4 1种 ,分隶于 1 6科 2 4属。现将其名录整理报道如下。1　鸟类吸虫名录1 短咽科Ｂｒａｃｈｙｌａｅｍｉｄａｅ(1)拱形短咽吸虫Ｂｒａｃｈｙｌａｅｍｕｓａｒｃｕａｔｕｓ。橙翅噪鹛(Ｇａｒｒｕｌａｘｅｌｌｉｏｔｉ)、眼纹噪鹛 (Ｇ .ｏｃｅｌｌａｔｕｓａｒｔｅｍｉｓｉａｅ)、矛纹草鹛 (Ｂａｂａｘｌａｎｃｅｏｌａｔｕｓ)、棕颈钩嘴鹛 (Ｐｏｍａｔｏｒｈｉｎｕｓｒｕｆｉｃｏｌｌｉｓ)、白领凤…     

红松林不同演替阶段夏季鸟类群落研究

红松林不同演替阶段夏季鸟类群落研究常家传鲁长虎刘伯文许青（东北林业大学,哈尔滨１５００４０）ＳｔｕｄｙｏｆｔｈｅＢｉｒｄｓＣｏｍｍｕｎｉｔｙＳｔｒｕｃｔｕｒｅｉｎＤｉｆｅｒｅｎｔＳｕｃｃｅｓｉｏｎＰｅｒｉｏｄｏｆＫｏｒｅａｎＰｉｎｅＦｏｒｅｓｔ．Ｃｈ...     

青州仰天山地区夏季鸟类垂直分布的研究

青州仰天山地区夏季鸟类垂直分布的研究王庆忠,王大科（山东潍坊教育学院生物系,青州２６２５００）ＶｅｒｔｉｃａｌＤｉｓｔｒｉｂｕｔｉｏｎｏｆＳｕｍｍｅｒＢｉｒｄｓｉｎＹａｎｇｔｉａｎＭｏｕｎｔａｉｎｏｕｓＤｉｓｔｒｉｃｔｏｆＱｉｎｇｚｈｏｕ．￥Ｗａｎｇ...     

庞泉沟冠纹柳莺繁殖习性的观察

冠纹柳莺（Ｐｈｙｌｏｓｃｏｐｕｓｒｅｇｕｌｏｉｄｅｓ）是庞泉沟保护区近几年来新发现的繁殖鸟类,从而使该区繁殖柳莺的种类增加为４种［１,２］。国内关于该种繁殖习性的报道尚少。为了系统搞清本区柳莺的生态资料,１９９３－１９９７年的４－９月,对该种的繁殖习...     

暗绿绣眼鸟的繁殖生态观察

暗绿绣眼鸟的繁殖生态观察朱献恩,朱晓华青岛市崂山区林业局鸟类管理站２６６１００暗绿绣眼鸟（ＺｏｓｔｅｒｏｐｓｊａｐｏｎｉｃａｓｉｍｐｌｅｘＳｗｉｎｈｏｅ）为青岛地区的夏候鸟。每年于５月初迁来青岛崂山繁殖,９月下旬迁回南方越冬。居留期１５０天。笔者于１...     

青州南部山区冬季鸟类群落生态的初步研究

青州南部山区冬季鸟类群落生态的初步研究丛建国（山东潍坊教育学院生物系,青州２６２５００）ＣｏｍｍｕｎｉｔｙＥｃｏｌｏｇｙｏｆＷｉｎｔｅｒＢｉｒｄｓｉｎＳｏｕｔｈｅｒｎＭｏｕｎｔｏｉｎｏｕｓＤｉｓｔｒｉｃｔｏｆＱｉｎｇｚｈｏｕ￥ＣｏｎｇＪｏａｎｇｕｏ（Ｄｅ－ｐａｒｔｍｅｎｔｏｆＢｉｏｌｏｇｙ,ＷｅｉｆａｎｇＥｄｕｃａｔｉｏｎａｌＣｏｌｌｅｇｅ,ＳｈａｎｄｏｎｇＰｒｏｖｉｎｃｅ,Ｑｉｎｇｚｈｏｕ２６２５００）．ＣｈｉｎｅｓｅＪｏｕｒ－ｎａｌｏｆＥｃｏｌｏＬｙｙ,１９９３,１２（５）：５２－５５。ＡｓｕｒｖｅｙｏｎｂｉｒｄｃｏｍｍｕｎｉｔｉｅｓｉｎｓｏｕｔｈｅｒｎｍｏｕｎｔａｉｎｏｕｓｄｉｓｔａｎｃｅｏｆＱｉｎｇＺｈｏｕ,ＳｈａｎｄｏｎｇＰｒｏｖｉｎｃｅ,ｉｓｃｏｕｄｕｃｔｅｄ３０ｓｐｅｃｉｅｓａｒｅｆｏｕｎｄａｎｄ４ｔｉｍｅ;ｄｏｍｉｎａｎｔｓｐｅｃｉｅａ,Ｔｈｅｎｕｍｂｅｒｏｆｓｐｅｃｉｅｓａｎｄｄｅｎｓｉｔｙｏｆｂｉｒｄｃｏｍｍｕｎｉｔｙａｒｅｖａｒｉｅｄｗｉｔｈｄｉｆｆｅｒｅｎｔｈａｂｉｔａｔｓ,ＵｓｉｎｇＦｕｚｚｙａｎａｌｙｓｉｓｍｅｔｈｏｄ,６ｂｉｒｄ．Ｃｏｍｍｕｎｉｔｉｅｓａｒｅｃｌａｓｓｉｔｉｅｄ     

动物园掠影

北京动物园前身是皇家苑囿乐善园,也是中国开放最早,饲养动物最多的动物园之一,距今已有100余年的历史。北京动物园在野生动物的饲养繁殖和人工哺育方面都颇具成果。     

银额果蝇(Drosophila albomicans)B染色体对繁殖的影响

利用遗传背景一致的３类含有不同Ｂ染色体数目的银额果蝇（Ｄｒｏｓｏｐｈｉｌａ ａｌｂｏｍｉｃａｎｓ）品系,对繁殖的２个参数,即净繁殖量和性比进行了比较研究。结果表明Ｂ染色体对净繁殖量有着显著的影响,其影响依赖于Ｂ染色体数目的不同而不同;低数目增加其携带者的净繁殖量,而在高含量时有使其携带者净繁殖量下降的趋势。Ｂ染色体对繁殖的影响还具有一定的时间分布特征,即３类品系净繁殖量的差异主要集中在雌绳繁殖的早     

Topography of the contours of the inner surface of the wall of the left ventricle of the heart in systole

Chosen at random 38 diastolic preparations of human hearts from persons having not any cardiac pathology, as demonstrate the postmortem examination, have been investigated. The left ventricle casts have been made during the first 24 hours after death according to a strictly fixed technique by means of filling the cardiac chambers with polymere mass--protacryl--under a physiological pressure of the diastolic filling. The trabecules are arranged as a spiral from the apex of the ventricle up to the atrioventricular fibrous ring, with approaching the apex the spiral step increases and the trabecules straighten. The left ventricle cast is devided into some planes, the envelopes and the trabecularity lines are measured. Average values of the shift in the trabecularity lines I, II, III and in the cross sections B, C, D, E are defined in relation to the plane A and in every case in relation to the previous plane Cn-1. The data obtained are presented in tables and diagrams. The greatest shift demonstrate the trabecularity lines I running predominantly along the posterior wall of the left ventricle in the planes B and which are situated nearer to the atrioventricular ring projection. Owing to the presence of the spiral-shaped course of the trabecules, it is possible to suppose that it influences the blood stream twisting clockwise in the left ventricle during the diastole phase. This indicates the necessity to work out some new constructions of artificial cardiac valves, securing the twisted blood stream. The condition mentioned should be taken into consideration while making prostheses of the cardiac valves.