相关实验视频
Updated: Feb 17, 2026
09:47
Spotting Cheetahs: Identifying Individuals by Their Footprints
Published on: May 1, 2016
15.4K
使用定性风险评估来重新评估卡万戈赞贝西跨境保护区内的兽医范式
Laura E Rosen1,2, Shirley J Atkinson2, Nlingisisi D Babayani3
1Victoria Falls Wildlife Trust, Victoria Falls, Zimbabwe.
Frontiers in veterinary science
|February 16, 2026
概括
在博茨瓦纳拆除兽医围.
科学领域:
- 野生动物保护 野生动物保护
- 兽医科学是一门兽医科学.
- 生态生态学 生态生态学
背景情况:
- 南非的卡万戈赞贝西跨境保护区 (KAZA) 的息地连接受到兽医围的限制.
- 这些旨在防止动物疾病的传播,但往往阻碍了野生动物的关键活动.
- 博茨瓦纳北部的许多围已经破旧,但有些区域仍然限制了野生动物.
研究的目的:
- 评估与拆除兽医围相关的跨境动物疾病 (口病,传染性牛肺炎,小反动物瘟疫) 的风险.
- 在不同的场景下评估疾病风险:当前围状态,围拆除,以及带有风险减轻的围拆除.
- 为了解决拆除围的决定,以改善野生动物息地连接.
主要方法:
- 在特定的围部分 (北水牛,赞比西边境,西部边境) 进行了定性风险评估.
- 评估了三种关键跨境动物疾病的风险途径.
- 分析了三个场景:现状,假设的拆除和假设的拆除与降低风险的措施.
主要成果:
- 假设移除围部分并没有增加研究的跨境动物疾病的风险.
- 与现状相比,实施风险减轻措施 (例如,战略畜牧) 可以降低疾病风险.
- 关键风险路径步骤被确定为具有低风险,非常低风险或可以忽略的风险.
结论:
- 根据低疾病风险,所有三个评估的围的部分都可能适合移除.
- 建议与当地社区进行商,并有条件地实施降低风险的措施.
- 在低风险地区拆除围可以恢复野生动物连接,使大象受益,并可能减少人类与野生动物之间的冲突,支持KAZA的保护目标.
相关概念视频
02:31Habitat Fragmentation
21.5K
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.
21.5K
01:50Threats to Biodiversity
27.2K
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...
27.2K
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
334
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...
334
01:23Toxicity Testing in Animals
16
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
16
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
488
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,...
488