Results 21 to 30 of about 26,666 (201)
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
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Shuitu Baochi Xuebao, 2022 为探讨物种多样性与地上生物量的相关性以及物种多样性的垂直变化特征。以阿尔泰山布尔津林区5种草地类型为研究对象, 通过对布尔津林区各草地类型的调查, 分析了阿尔泰山布尔津林区各草地类型的物种多样性变化特征。结果表明: (1)5个草地群落类型地上生物量差异明显, 荒漠草原和山地草甸草原较低, 山地草原最高, 而山地草甸和高寒草甸处于两者之间。(2)各草地类型群落间的物种多样性指数、优势度指数、丰富度指数和均匀度指数有明显差异, 高寒草甸的物种优势度、多样性和均匀度的情况最好 ...
殷锡凯 +4 more
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Methods in Ecology and Evolution, EarlyView.Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
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野生动物学报, 2011 2009年5月9日～6月9日,采用样方法对安邦河湿地自然保护区退耕还湿区域鸟类群落多样性进行了研究。根据调查区域生境特点,将调查区划分为3个大样方,分别为恢复初期湿地（样方1）、恢复中后期湿地（样方2）以及农田（旱田,样方3）。本研究共观察到鸟类12目24科61种。该地区春季鸟类群落多样性指数为2.20,其中样方2的多样性指数最高,为1.73;样方1为0.63;样方3为0.18。多样性指数比较结果表明,进行生态恢复可以增加鸟类的群落多样性。鸟类群落多样性是衡量一个地区生态环境的一个重要指标 ...
刘志伟 +5 more
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Zhongguo youzhi为预防花生储藏过程中的黄曲霉污染，从农田土中分离出2株拮抗芽孢杆菌，通过平板对峙法优选出1株作为研究对象，研究其对黄曲霉的抑制效果及对花生采后黄曲霉污染的防控效果。采用平板对峙法检测拮抗菌的抑菌广谱性并绘制生长曲线，并通过生理生化实验、形态特征观察及16S rDNA序列分析对该菌株进行鉴定。结果表明：优选出拮抗菌B419作为研究对象，其可有效抑制黄曲霉的生长，在拮抗菌浓度为1.0×106 CFU/mL，黄曲霉孢子浓度为1.0×103 CFU/mL时，黄曲霉孢子萌发抑制率达到98 ...
郑爱芳1,2,3,4， 何欢1, 高晔1, 张名雪1， 王煦1， 赵凯1,2 ZHENG Aifang1,2,3,4, HE Huan1, GAO Ye1, ZHANG Mingxue1， WANG Xu1，ZHAO Kai1,2
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Lessons learned from screening potential other effective area‐based conservation measures
Conservation Biology, EarlyView.Abstract Other effective area‐based conservation measures (OECMs) are sites that deliver effective biodiversity outcomes irrespective of their management objectives. These areas are widely expected to play an important role in efforts to protect 30% of Earth by 2030.
Carly N. Cook +15 more
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Conservation Biology, EarlyView.Scaling area‐based conservation, including initiatives led or comanaged by Indigenous Peoples and local communities, is a flagship goal of the Kunming‐Montreal Global Biodiversity Framework. Conservationists often aspire to scale initiatives, but this is rarely achieved in practice. Identifying and addressing factors that limit initiative adoption (i.e.
Thomas Pienkowski +39 more
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野生动物学报, 2012 近年来,威海一直致力于生态城市的建设。物种多样性是生态城市的重要指标,而在物种多样性中,城市鸟类多样性起着重要的作用。本文调查了冬季威海7个斑块（2个校园和5个典型生活小区）的鸟类多样性,对其物种多样性指数以及均匀度指数进行分析,得出山东大学校园和哈尔滨工业大学校园的鸟类多样性高于5个小区斑块,而且2个校园斑块的均匀度在7个斑块中也处于较高水平。另外,结合实际情况,文章从绿化面积、城市栖息地的空间异质性、生境破碎化程度以及人为干扰4个方面对城市鸟类丰富度与多样性的影响因素做出讨论 ...
高伟 +5 more
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野生动物学报, 2023 由于人类活动干扰及自然环境变化，东北马鹿（Cervus elaphus xanthopygus）的生存面临诸多问题。为掌握东北马鹿遗传多样性现状，进而为马鹿种群的健康状况提供评估依据，利用线粒体Cyt b基因和微卫星2种分子标记对内蒙古大兴安岭南麓高格斯台罕乌拉国家级自然保护区内的东北马鹿进行种群遗传多样性评估。结果表明：246份新鲜马鹿粪便隶属于182只个体；微卫星标记表明平均期望杂合度为（0.729±0.016），平均观测杂合度为（0.768±0.029），线粒体标记表明单倍型多样性为（0.347 ...
李峥, 郭金昊, 刘鑫鑫, 张明海
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