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相关概念视频

Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

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Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
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Ecological Succession02:17

Ecological Succession

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Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
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Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
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Ecological Disturbance02:26

Ecological Disturbance

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An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
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Responses to Drought and Flooding02:41

Responses to Drought and Flooding

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Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
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Natural Selection and Adaptation01:15

Natural Selection and Adaptation

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Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
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相关实验视频

Updated: Jun 25, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
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Watershed Planning within a Quantitative Scenario Analysis Framework

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复杂的自然系统中的弹性评估.

Camilla Sguotti1,2, Paraskevas Vasilakopoulos3, Evangelos Tzanatos4

  • 1Department of Biology, University of Padova , Padova 35100, Italy.

Proceedings. Biological sciences
|May 29, 2024
PubMed
概括

生态弹性,即生态系统避免不可逆转转移的能力,现在可以使用Cusp弹性评估 (CUSPRA) 方法进行估计. 这种方法有助于在气候变化中可持续地管理生态系统.

关键词:
气候变化 气候变化 气候变化基于生态系统的管理.政权的转变 政权的转变恢复力 恢复力随机顶点模型的随机顶点模型.临界点是指一个临界点.

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科学领域:

  • 生态生态学 生态生态学
  • 环境科学 环境科学
  • 灾难理论就是灾难理论.

背景情况:

  • 生态弹性对于生态系统的稳定性和避免政权转变至关重要.
  • 目前用于估计现实生态系统的弹性方法是有限的.
  • 灾难理论为理解临界点和系统动态提供了一个框架.

研究的目的:

  • 开发一种经验方法来估计生态弹性.
  • 引入基于随机顶点模型的顶点弹性评估 (CUSPRA) 方法.
  • 为在不断变化的环境条件下提供基于生态系统的管理工具.

主要方法:

  • 利用了来自灾难理论的随机顶点模型.
  • 扩展了尖端模型,以识别自然系统中的稳定和不稳定状态.
  • 将Cusp弹性评估 (CUSPRA) 应用于模拟和实证数据.

主要成果:

  • 开发了CUSPRA来估计与歇斯底里交叉临界点的可能性.
  • 评估了与多个外部驱动因素相关的弹性.
  • 使用大西洋鱼种群和北海/地中海生态系统数据证明了CUSPRA的适用性.

结论:

  • 库斯普拉是一个强大的经验方法来估计生态弹性.
  • 该方法为基于生态系统的管理提供了直接的结果.
  • 库斯普拉支持可持续管理适应全球气候变化的生态系统.