广泛分布于亚洲的姬鼠属Apodemus 是研究小型哺乳动物物种分类、物种多样性进化以及亚洲动物地理学非常有趣的类群之一.作者在四川省和山东省采集了四种姬鼠属物种(高山姬鼠A.chevrieri,中华姬鼠A.draco,大耳姬鼠A.latronum,黑线姬鼠A.agrarius)制作了染色体核型,并与已报道的其它姬鼠属物种黑线姬鼠、台湾姬鼠A.semotus、云南姬鼠A.ilex、大耳姬鼠、大林姬鼠
Reproducing females can allocate energy between the productions of eggs of different size or number,both of which can strongly influence fitness.Environmental conditions often drive these reproductive
A diversity of hypotheses have been proposed for phylogenetic relationships and taxonomy within the genus Odorrana,and great progress has been made over the past several decades.
研究了24 只大蹄蝠(Hipposideros armiger) (10♂14♀)在4 种不同状态(飞行、静息、布袋和手持)和3 种不同生境复杂度(0 棵、1 棵、5 棵树)条件下回声定位声波的特征，分析了其回声定位与体形、性别的相关关系。
Temperature profoundly affects the rate and trajectory of embryonic development,and thermal extremes can be fatal.In viviparous species,maternal behaviour and physiology can buffer the embryo from the
We examined sexual size dimorphism (SSD),mating pattern,fertilization efficiency and female reproductive traits in two bufonid toads (Bufo gargarizans and Duttaphrynus melanostictus) to test the idea
Lead (Pb) is a common heavy metal in the natural environment,but its concentration has been increasing alongside widespread industrial and agricultural development.
中国西南山地是全球重要的生物多样性热点地区，该地区的地形地貌、气候和生境复杂，一直被认为是生物多样性产生的基础。然而这些因素造就物种和遗传多样性的机制尚未得到充分的研究。
The Northeastern Qinghai-Tibetan Plateau (NQTP) contains many physical features such as mountains,basins and rivers that may have contributed to its rich biological diversity.
在卵生动物中，巢捕食是影响卵生动物繁殖失败的重要因素之一，巢捕食不仅影响种群的密度，也能改变种群的年龄结构。巢捕食反应了天敌对该物种的选择压力，清楚地了解捕食风险、捕食率及其影响因素对于研究其种群变化、繁殖特征，以及保护对策的提出具有极其重要的意义。