暖化和阿特拉辛对Lithobates pipiens表型的单独和联合影响:对青减少的影响
Melody J Gavel1, Mark R Forbes1, Derek D N Smith2
1Department of Biology, Carleton University, Ottawa, Ontario, Canada.
概括
气候变化和农药危害两动物. 高温和阿特拉会影响青的发育,免疫力和压力,在本研究中观察到的综合效应.
科学领域:
- 生态毒理学 生态毒理学
- 环境科学 环境科学
- 类学 类学 类学
背景情况:
- 两动物面临着全球的衰退,受到气候变化,农业化学品和病原体的威胁.
- 多种压力因素对两动物健康的综合影响尚未完全理解.
研究的目的:
- 研究高温和农业化学物质阿特拉对Lithobates pipiens表型的单独和联合影响.
- 评估对发育的影响,运动性能,免疫力和压力跨和变形阶段.
主要方法:
- 一个中宇宙实验,将子暴露在环境温度和升温温度和阿特拉 (2.0μg/L) 中.
- 测量头 (2周) 和变形 (变形完成) 的表型终点.
- 分析包括发育,生长,运动能力,免疫力 (中性细胞与淋巴细胞的比例) 和压力指标.
主要成果:
- 仅仅升高的温度就增加了子的生长和发育,但降低了运动能力.
- 单独阿特拉没有显著的影响,但与温度相互作用,抵消发育迟缓.
- 变暖加快了转型的发展,以牺牲大小和免疫力降低为代价,加热和阿特拉辛对免疫细胞比率的影响相结合.
结论:
- 温度是两动物的重要压力因素,影响多种表型特征.
- 联合压力因素 (变暖和阿特拉) 可以产生协同作用或对抗作用,影响两动物的健康和免疫能力.
- 生态毒理学研究必须考虑多种环境相关的压力因素,并评估各种生命阶段,以准确评估两动物下降情况.
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