Results 21 to 30 of about 1,330,993 (165)
野生动物学报, 2016 鸱鸮科鸟类的种属分类仍存在一些争议。例如:渔鸮属和雪鸮属是否应并入雕鸮属,四川林鸮是一独立种还是长尾林鸮的一个亚种?线粒体 DNA 中细胞色素 C 氧化酶亚基I(CO I)基因是 DNA 条形编码的主要基因,被广泛应用于鸟类的物种鉴定和系统发育研究。通过测定中国产红角鸮、雕鸮和长尾林鸮COⅠ基因的序列,并结合 GenBank中鸱鸮科鸟类的同源序列,本文对27 种鸟类进行了序列变异和系统发育分析。结果显示,鸱鸮科鸟类多数是种间变异大于种内变异,该科鸟类几乎都是同属的优先聚类 ...
康 慧 丁 鹏 李 波
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New Phytologist, Volume 251, Issue 3, Page 1267-1282, August 2026.Biosynthesis and accumulation of tanshinones in the periderm of Salvia miltiorrhiza during secondary root growth. Summary Perennial herbs develop long‐lived roots that undergo repeated cycles of secondary growth, during which the periderm functions as a protective barrier and a major site of specialized metabolite accumulation.
Licheng Liu +19 more
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Functional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
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Shuitu Baochi Xuebao, 2003 景观格局是地貌格局、土壤格局、植被分布格局、水资源格局及生产力格局等的综合.从景观发育的动力因素角度,分析了洮儿河中下游流域景观格局特征,总结了推动景观格局形成的地质地貌、气象水文及社会生产力因素,重点阐述了水环境系统演化与景观格局发育的耦合过程和特征,探讨不同景观要素对水环境特征分异的关系,分析景观格局对水环境系统中水量、水质及空间分布的整体影响.
郭跃东, 何岩, 邓伟
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四川大学学报. 自然科学版, 1990 报道了白蜡虫卵从产出到孵化的发育过程,包括卵裂、胚盘及胚带的形成、胚动与背合、胚膜与胚层的形成、胚带分节、附肢发育以及内部器官系统的发生等.
赵欣平, 吴次彬
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基于COI和Cytb基因的黄腰响蜜系统发育分析和分歧时间估算
野生动物学报, 2021 随着分子生物技术的迅速发展，物种分化的过程及原因成为进化生物学和生态学研究的热点之一。黄腰响蜜（Indicator xanthonotus）是中国分布的唯一的响蜜科鸟类，其系统发生关系和分化时间尚不清楚。本文运用细胞色素c氧化酶I亚基（COI）和细胞色素b（Cytb）基因作为分子标记，结合NCBI获取到的19个物种的COI和Cytb基因序列，采用最大似然法及贝叶斯法构建系统发育树，探讨了黄腰响蜜的系统发育及起源的问题，通过分子定时的方法估算黄腰响蜜的分化时间。结果表明：黄腰响蜜与响蜜 ...
元青苗 1, 2 段玉宝 1, 2
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Journal of Animal Ecology, Volume 95, Issue 7, Page 1178-1193, July 2026.This population‐comparative study reveals that male and female parents respond differently to social and ecological conditions. This sex‐specific responsive strategy is related to the incongruent parental care systems across populations in Chinese penduline tits.
Jia Zheng +5 more
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Shuitu Baochi Xuebao, 2020 切沟是重要的侵蚀类型，是小流域侵蚀泥沙的主要来源，对其发生发展的动力过程、形态特征、监测方法及预报模型进行系统分析和总结，是揭示切沟侵蚀发生动力学机制、治理切沟侵蚀、保护土地资源的前提和基础。通过系统分析、总结切沟及切沟侵蚀概念、切沟形态特征与测量方法、影响因素、发育动力过程和预报模型等相关研究进展，明晰了切沟概念，对比了不同测定方法的优劣，量化了影响切沟发育的关键因素，明确了切沟发育各子过程的动力机制，比较了典型切沟侵蚀模型的结构与主控因素，提出了切沟侵蚀亟待加强的研究内容。为理解切沟侵蚀形成 ...
张光辉
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Integrative Conservation, Volume 5, Issue 2, Page 217-224, June 2026.This study reconstructs the phylogeny of the Javan Hawk‐Eagle (Nisaetus bartelsi) within the subfamily Aquilinae using Maximum Likelihood and Bayesian Inference algorithms on a blood sample and GenBank data. The analysis reveals that the sampled genus Nisaetus forms a monophyletic group. Furthermore, N. bartelsi occupies a sister‐taxon of N.
Almas Lathifatul Ula +3 more
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浙江大学学报. 农业与生命科学版Lipaphis pseudobrassicae (Davis, 1914) is an important agricultural insect pest. In this study, we sequenced and analyzed the entire mitochondrial genome of L.
LIN Xingyu(林兴雨), SONG Nan(宋南)
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