使用MaxEnt算法预测牛载体Oncomelania hupensis quadrasi在菲律宾的潜在全国分布
Loida M Recopuerto-Medina1, Andrea Bernice M Aguado1, Bianca Manuela M Baldonado1
1Department of Biological Sciences, College of Science, University of Santo Tomas, España, 1008, Manila, Philippines.
Parasitology research
|December 14, 2023
概括
在菲律宾,杆菌病是一个主要问题. 这项研究使用GIS和MaxEnt预测了牛载体Oncomelania hupensis quadrasi的高风险息地,确定了关键的环境驱动因素.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 寄生虫学的寄生虫学
背景情况:
- 菲律宾有1200万人患有杆菌病,原因是疾病信息和控制有限.
- 日本虫 (Schistosoma japonicum) 在其生命周期中依赖于两动物牛Oncomelania hupensis quadrasi (O. h. quadrasi).
研究的目的:
- 为了预测菲律宾O. h. quadrasi的潜在高风险息地.
- 确定影响牛分布和杆菌感染的关键环境因素.
主要方法:
- 采用了地理信息系统 (GIS) 和最大 (MaxEnt) 算法.
- 分析了生物气候决定因素,以建模牛息地的适宜性.
主要成果:
- 创建了一个高性能预测模型 (AUC=0.907),最干旱季度的平均温度是显著因素 (25.3%).
- O. h. quadrasi 呈现焦点分布,喜欢降雨量高和季节潮湿的地区,但也表现出适应各种条件的能力.
- 在奎松,比科尔地区,东维萨亚斯和明达那奥部分地区确定了高适宜性地区.
结论:
- 环境因素,特别是温度和降水,显著影响O. h. quadrasi的分布.
- 气候变化和全球变暖可能会扩大菲律宾的杆菌病传播区域.
- 发现有助于针对性干预,以控制已识别的高风险地区的istosomiasis.
相关概念视频
00:53Migration
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.
00:30What are Populations and Communities?
Populations are groups of individuals of the same species that inhabit a shared environment. Communities include multiple co-existing, interacting populations of different species. Metapopulations span multiple populations of the same species that occupy different areas. Metapopulations interact through immigration and emigration, providing genetic diversity that lends resilience to harsh environments. Population size and density can be estimated using quadrat and mark and recapture...
02:04Conservation of Small Populations
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 likely to...
02:07Conservation of Declining Populations
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.
02:31Habitat Fragmentation
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.
02:51Multi-species Conserved Sequences
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved DNA...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved DNA...