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相关概念视频

Migration00:53

Migration

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Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
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Conservation of Declining Populations02:07

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Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
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Habitat Fragmentation02:31

Habitat Fragmentation

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Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
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Design Example: Measuring Distance Between Two Points with Obstructions01:10

Design Example: Measuring Distance Between Two Points with Obstructions

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When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
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Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

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A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
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相关实验视频

Updated: May 10, 2025

A Video Surveillance System to Monitor Breeding Colonies of Common Terns Sterna Hirundo
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A Video Surveillance System to Monitor Breeding Colonies of Common Terns Sterna Hirundo

Published on: July 22, 2018

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估计面临威胁的,神秘的,数据稀疏的迁徙海岸鸟的回落距离.

Birgita D Hansen1, Jodie Honan2, Don Stewart2

  • 1Centre for eResearch and Digital Innovation, Federation University, Ballarat, Victoria, Australia.

PloS one
|April 23, 2025
PubMed
概括

保护缓冲器对于保护Latham等神秘物种至关重要.

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科学领域:

  • 保护生物学 保护生物学
  • 野生动物生态生态学
  • 城市生态城市生态学

背景情况:

  • 由于人类的干扰,修改息地的神秘动物面临着重大的保护挑战.
  • 挫折和缓冲是保护息地的法律工具,但缺乏关于适合城市适应物种的适当宽度的数据.
  • 拉瑟姆 (Gallinago hardwickii) 是一个临灭绝的迁徙海岸鸟,利用城市湿地和草原,需要基于证据的保护措施.

研究的目的:

  • 为了获得科学支持的缓冲宽度建议,以减轻人类对Latham's Snipe的干扰.
  • 为了估计这种神秘物种的冲洗距离 (FID),从冲洗距离 (FID) 估计警报距离 (AD).
  • 为提供数据,以告知Latham's Snipe的法律保护和保护计划.

主要方法:

  • 使用1529个冲洗距离 (FID) 来估计警报距离 (AD).
  • 用于物种内部回归和跨物种分析 (Scolopacidae) 来确定AD.
  • 应用启动,以考虑FID在不同地点和观察者之间的变化.

主要成果:

  • 推的最低缓冲宽度为75-110米,适用于拉瑟姆.
  • 据估计,这些缓冲器可以防止80-95%的警觉响应.
  • 开发了一种适用于修改息地的其他神秘物种的方法.

结论:

  • 科学得出的缓冲区对于管理城市化地区的人类与野生动物冲突至关重要.
  • 建议的缓冲区为保护Latham's Snipe提供了一个定量基础.
  • 该研究提供了一种可转移的方法,用于为难以捉摸的动物群建立保护缓冲区.