15个两动物种群对三种常用的杀虫剂的天真和诱导耐受性
Devin K Jones1, Devin G DiGiacopo2, Brian M Mattes3
1Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180 USA; Department. of Forestry and Natural Resources, Purdue Univ., West Lafayette, IN 47907 USA.
Aquatic toxicology (Amsterdam, Netherlands)
|May 17, 2024
概括
许多两动物种群表现出天然农药耐受性,并且在暴露时可以迅速增加耐受性. 这种可诱导的耐受性对于适应人类影响引起的环境变化至关重要.
科学领域:
- 生态生态学 生态生态学
- 环境毒理学环境毒理学
- 进化生物学 进化生物学
背景情况:
- 人类活动对生态系统产生重大影响,迫使物种适应或迁移.
- 虽然害虫物种往往会进化耐受农药,但非目标物种的病例较少.
- 诱导性耐受性提供了即时的保护,并可以推动进化适应.
研究的目的:
- 为了研究森林青种群的农药耐受性.
- 评估对常见杀虫剂的天真耐受性和诱导耐受性的变化.
- 探索农业邻近性和耐受性可塑性之间的关系.
主要方法:
- 研究了来自宾夕法尼亚州和纽约州的15个树种群.
- 幼虫暴露在没有杀虫剂,低致命和致命度的卡巴里尔,pyrifos和diazinon.
- 测量了天真耐受性和耐受性可塑性 (MoTP) 的大小.
主要成果:
- 观察到对所有三种杀虫剂的天真耐受性有显著差异.
- 几乎一半的人群表现出可诱导的耐受性,具有不同的MoTP.
- 发现了pyrifos和diazinon之间的交叉耐受性,但不是MoTP.
- 靠近农业与MoTP相关,但没有增加耐受性.
结论:
- 两动物种群表现出对农药的多样化的天真耐受性.
- 许多种群具有迅速诱导耐受性增加的能力.
- 诱导性耐受性是适应农药污染的关键机制.
- 需要进一步研究种类和污染物的诱导性耐受性.
相关概念视频
01:17Hypothesis: Accept or Fail to Reject?
27.7K
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
27.7K
01:21Frequency-dependent Selection
22.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.0K