相关实验视频
Updated: Jan 10, 2026

08:58
Colonization of Euprymna scolopes Squid by Vibrio fischeri
Published on: March 1, 2012
20.4K
对辅助殖民的生态风险效益分析
Rafael D'Andrea1, György Barabás2,3, Sarah E Dalrymple4,5
1Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, USA.
Global change biology
|November 22, 2025
概括
辅助殖民 (AC),即将物种迁移到新的地区,可以防止灭绝,但存在风险. 本研究提出了一个两步框架,以评估AC对生物多样性保护的风险和好处.
科学领域:
- 保护生物学 保护生物学
- 生态生态学 生态生态学
- 生物多样性管理的管理
背景情况:
- 辅助殖民 (AC) 是一种保护策略,通过将物种转移到其原生范围之外,以防止物种灭绝.
- 由于潜在的负面生态影响,包括对本地物种和新型相互作用的风险,反映了入侵物种的担忧,AC存在争议.
- 现有的AC指南缺乏针对生物多样性的具体案例风险效益分析.
研究的目的:
- 制定一个全面的决策框架,对辅助殖民 (AC) 项目进行决策.
- 区分低风险,高收益的交流场景和高风险,低收益的场景.
- 建立一个定量方法来评估AC对居民物种和全球生物多样性的影响.
主要方法:
- 提出了一种双方向的方法: 1) 对于明确的AC案例的定性标准,和 2) 对于复杂的案例的定量分析.
- 开发了七个定性标准,以识别具有最小风险和最大收益的AC项目,或者反之亦然.
- 概述了基于社区生态理论的定量系统的路线图,以估计灭绝概率.
主要成果:
- 定性标准可以识别明显合适或不合适的AC项目,简化决策.
- 拟议的框架允许进行定量风险评估,估计由于AC导致本地物种灭绝的概率.
- 决策框架只建议采取行动,如果与不采取行动相比,它会增加全球现存物种的数量.
结论:
- 需要一个结构化的,两步的方法 (定性和定量),以进行有助于殖民的风险评估.
- 建议进一步开发和对拟议框架进行大规模测试.
- 广泛的商对于采用AC风险评估的国际准则至关重要,以确保生物多样性保护.
相关概念视频
Ecological Succession
21.2K
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...
21.2K
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
387
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
387
The Colonization of Land
37.0K
Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
37.0K
Conservation of Declining Populations
12.5K
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.
12.5K
Threats to Biodiversity
26.5K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
26.5K

