森林节肢动物多样性的影响因素

森林节肢动物物种多样性受生物和非生物因素的共同作用 .

凉水自然保护区土壤动物群结构特征

在５种生境中共获土壤动物５１类，６１６１只，隶属４门８纲２１目３９科。其中大型土壤动物优势类群３类，常见类群７类。中小型土壤动物的优势类群为２类，常见类群为８类，构成了本区土壤动物的主要成分。大型土壤动物类群和个体数最多的是原始阔叶红松林。中小型土壤动物类群数最多的是人工红松林，个体数最多的是人工云冷杉林。

谈牡丹江林区野生动物的区划

牡丹江林区地处黑龙江省东南、东部以乌苏里江为界,与苏联隔江相望;完达山、张广才岭盘居正个林区,全区境内地域辽阔、山峦起伏、森林茂密、江河纵横、土地肥沃。人参、木耳、黄芪、平贝、五味子等山特产品甚多;鹿、獐狍等野生动物资源十分丰富;江、湖、河、泡分布密集,对发展种植业与养殖业极为有利。搞好牡丹江林业野生动物资源的保护、积极驯养繁殖,合理经营利用,实行科学化管理。

次生阔叶林中大山雀和沼泽山雀取食行为的研究

The foraging behavior of Parus major and P. palustris in the secondary deciduous wood during winter and summer was studied. All data were gathered from November to February of next year 1988-1991 in winter and from March to July 1989-1991 in summer. Observations were made in secondary deciduous wood of Zuojia Nature Protection region of Jilin Province. The Great tit and Marsh tit are common permanent residents of secondary deciduous wood in the region. The height, positions(Horizontal and vertical of canopy), substrates, trees species, niche breadth and niche overlap of foraging of two species are very different. The height of foraging has been expressed as the distance from 0-4m, 4.1-10m, 10.1-15m and over 15m. Great tit feeds average lower than in Marsh tit. At foraging position of canopy layer in horizontal Great tit feeds on middle layer and out layer in winter and summer, while March tit feeds on out and middle layers. At vertical position of tree canopy, Great tit feeds on up, middle and low layers in winter, and on low and middle layers in summer, while Marsh tit feeds on up and middle layers in winter and summer, concerning the trees utilized for foraging Great tit feeds on Mongotian Oak, River Birch and Pierrot Willow in winter, while Mach tit feeds on Pierrot Willow, River Birch and Manchurian Linden. The results showed that two species did not over lap significantly in the places where they gather their food in order to utilize the common food resource differently.

褐河乌繁殖观察

褐河乌在山河屯林区为留鸟。４月初开始营巢繁殖。领域行为不明显，卵和雏鸟被触动时，亲鸟不弃巢。每窝卵数３～５枚，孵化期１５ｄ。雏鸟平均重４．０３ｇ，晚成鸟。每天早、中、晚有三个喂雏高峰。１７日龄雏鸟每只一天得食２８次，喂雏高峰每小时每雏平均得食４．１次。育雏期２１ｄ。褐河乌是水质清洁无污染的指示动物。

交流大会

一天,森林动物学校召开了一个阶段性的总结会,总结一下多位数乘一位数的乘法都有哪些规律。小猴第一个发言:"各位好,我先说,我发现一个因数和2相乘,积的个位上的数是0、2、4、6、8。

皮皮猴不孤独了

森林动物学新来了位同学皮皮猴,也带来了一系列的“恶作剧”,弄得同学们哭笑不得。他偷偷地把红辣椒粉放在花花猪的馅饼上,把上课回答老师提问的长耳兔的椅子悄悄挪开,还把挺大的毛毛虫塞进灰灰鼠的书包里……这调皮捣蛋的家伙,小眼珠子滴溜溜一转,就给二位同学起个外号……。

热带雨林小生灵

非洲，一个让人着迷和遐想的地方：火热的赤道、巨大的树木、怪异的藤本植物、滂沱的暴雨、动物的世界……不止这些，还有一个更丰富、更神奇却不被不被人所重视的世界，隐藏在这片天地里。因为它太微小，以致我们的眼睛无法看到。这里，一切简直都像科幻。这些非洲丛林的小动物似乎属于另一个星球，殊不知，它们身上拥有先于我们产生的秘密。