Results 11 to 20 of about 175,435 (170)
野生动物学报, 1983 数量调查是保护、利用与发展野生动物资源的基础,是野生动物管理工作的重要组成部分。为此,本文专题介绍一些数量调查的方法,供在护、养、猎工作中参考,现简述如下。一、直接相对数量调查法 （一）路线调查法沿着固定的路线,调查路线两侧一定距离内的野生动物数量,
马建章, 罗泽珣
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野生动物学报, 2018 鸟类数量调查受到越来越多生态学家的关注,鸟类数量的调查方法也多种多样。同时,湿地是地球上生物多样性最丰富的生态系统之一,有着巨大的生态服务功能。本文选取湿地鸟类作为生态环境调查的指示生物,对目前常见鸟类调查方法进行深入探讨,介绍湿地鸟类地面调查方法和航空鸟类调查方法,以及“3S”等新兴技术在鸟类调查中的应用,充分展现新兴学科技术在生态环境调查中发挥的重要作用。
周雯慧 朱京海 刘合鑫 刘冬烨 问 鼎
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Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
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Huli yanjiu, 2016 摘要： 调查组织与质量控制本次研究与公交车司机的年度健康体检同步进行，作为健康体检的子项目，调查前与5个公交公司提前联系，说明调查目的，取得单位领导的支持和配合。调查人员为经过统一培训的医护人员，调查方法统一，预调查结果满意，调查量表信度和效度较好。
程玉桂 +5 more
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Regulatory compliance and support for altered management of the exotic pet trade
Conservation Biology, EarlyView.Abstract Globally, the exotic pet trade has contributed to species invasion, disease, and animal welfare risks. Although scientists have advocated for increased trade regulation, the success of management and regulatory efforts depends on compliance by participants in the exotic pet trade. We used a regulatory compliance framework to investigate exotic
Elizabeth N. Pratt +3 more
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Conservation Biology, EarlyView.Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando +54 more
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Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal
Conservation Biology, EarlyView.Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz +5 more
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野生动物学报, 1991 本文作者结合近二年接触的调查实践再一次讨论了目前我国野生动物调查中使用最多的路线调查法产生误差的种种原因,它们是路线的长度、宽度、穿越的各种生境的面积、样线的代表性、不同动物采用单一的调查方法、标准、核算系数,调查时间,人员素质等与路线调查精度有密切关系的因素。作者指出如果能象全面质量管理那样对调查的各个环节加强管理,那么调查质量一定会有大幅度提高的,作者在论述过程中也提出了若干相应的建议。
陈华豪
doaj
Exploring legal‐ and health‐risk messaging to reduce demand for elephant skin
Conservation Biology, EarlyView.Abstract Asian elephants (Elephas maximus) are poached for an illegal trade in their skins, which are used in traditional medicine in Africa and Asia. We explored whether messages about the legal and health risks of using elephant skin for medicinal purposes (stomach illness) could reduce such consumption.
Beilu Duan +10 more
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, 1996 琐论重点调查厦门大学陈仁恩重点调查在过去、现在和将来都不失为重要的统计调查方法，本文琐谈重点调查的一些问题。在国外，把非全面调查全部列入抽样调查的范畴，且依据抽取单位是否按随机原则，分为概率抽样和非概率抽样——有意抽样。从广义上说，重点调查也是非概率..
陈仁恩
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