评估新兴疾病对白尾鹿种群的相互作用,使用基于代理物的建模方法
Miranda Strasburg1, Sonja Christensen1
1Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA.
Pathogens (Basel, Switzerland)
|July 26, 2024
概括
在白尾鹿 (WTD) 中频繁的出血性疾病 (HD) 爆发可以降低慢性衰竭疾病 (CWD) 的风险. 然而,只有严重的疾病爆发才会对慢性疾病传播和WTD群体产生重大影响.
科学领域:
- 野生动物生态学野生动物生态学
- 疾病生态学 疾病生态学
- 流行病学 流行病学
背景情况:
- 疾病的同时发生在野生动物中很常见,但研究不足.
- 流血性疾病 (HD) 和慢性衰竭疾病 (CWD) 在白尾鹿 (WTD) 种群中正在增加.
- 疾病爆发可能导致显著的WTD死亡率,可能减少疾病传播.
研究的目的:
- 评估HD疫情是否可以减轻WTD群体中CWD风险.
- 了解HD和CWD动态之间的关系.
- 为野生动物疾病管理策略提供信息.
主要方法:
- 基于代理的建模方法.
- 在WTD群体中模拟了HD和CWD的同时发生.
- 分析了HD爆发频率,强度和时间对CWD传播的影响.
主要成果:
- 频繁和强烈的HD爆发可以减轻CWD风险,特别是如果发生在CWD引入后不久.
- 带有大量WTD死亡率的HD疫情显著减少了CWD病例.
- 轻度的HD疫情对CWD或WTD人口动态的影响很小.
结论:
- 严重的HD疫情可以作为缓冲区,防止CWD在WTD中传播.
- 野生动物管理人员可以利用HD疫情爆发后的时期来加强CWD控制工作.
- 了解疾病相互作用对于有效的野生动物种群管理至关重要.
相关概念视频
Threats to Biodiversity
22.2K
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...
22.2K
Steps in Outbreak Investigation
119
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
119
Predator-Prey Interactions
16.2K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.2K
Conservation of Small Populations
13.1K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.1K


