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有些人喜欢冷:对近乎全球入侵者的长期评估
S Guareschi1, T Cancellario2, F J Oficialdegui3
1Department of Life Sciences and Systems Biology University of Torino Torino Italy.
Ecology and evolution
|December 24, 2024
概括
侵袭性红色沼泽 (Procambarus clarkii) 显示生物气候偏好发生变化,扩展到更冷,更干燥和更高的地区. 这种适应影响了避难所中的脆弱物种,需要更新监测和保护策略.
科学领域:
- 生态生态学 生态生态学
- 侵入性物种 生物学 生物学
- 生物地理学是生物地理学.
背景情况:
- 长期的入侵轨迹研究是有限的,特别是对于无脊椎动物.
- 红色沼泽 (Procambarus clarkii) 是一个记录良好的,非常成功的入侵物种.
- 其广泛的入侵历史允许对分布和生物气候变化的时间分析.
研究的目的:
- 在一个多世纪的时间里分析Procambarus clarkii的全球生物气候趋势.
- 了解这种物种入侵的时间和空间动态.
- 确定影响其传播和潜在未来范围的气候趋势.
主要方法:
- 利用了从1854年到2023年的历史记录.
- 采用线性模型与通用最小方程估计进行时间比较.
- 应用了两个样本的t测试来评估生物气候变量变化.
主要成果:
- 观察到与该物种存在相关的温度和降水变量下降趋势.
- 在被Procambarus clarkii.殖民的地区注意到海拔和干旱的增加.
- 在研究期间,确定了生物气候偏好,包括极端的变化.
结论:
- 克拉克 (Procambarus clarkii) 正在适应新的气候条件,包括更冷,更不湿的环境.
- 该物种的扩张对气候避难所中范围受限制的物种构成威胁.
- 调查结果为入侵物种控制的积极管理,监测和早期检测策略提供了信息.
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