沿着两个世纪的多次鱼入侵的利基动态
Duarte S Viana1, Francisco J Oficialdegui2, María Del Carmen Soriano1
1Estación Biológica de Doñana, CSIC, Sevilla, Spain.
The Journal of animal ecology
|September 21, 2023
概括
意大利的鱼.
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
- 保护生物学 保护生物学
背景情况:
- 生态随着环境变化而变化,特别是在全球快速变化期间.
- 长期物种分布数据对于理解利基动态至关重要.
- 意大利 (Austropotamobius fulcisianus) 在几个世纪前被引入伊比利亚半岛.
研究的目的:
- 为了分析意大利的分布和利基动态,在伊比利亚半岛超过200年.
- 为了调查的宽度和位置如何因环境变化和入侵物种而发生变化.
- 确定环境条件,尽量减少本地和入侵之间的共存.
主要方法:
- 对跨越两个世纪的物种分布数据进行历史分析.
- 检查与环境因素相关的利基变化和入侵北美的引入.
- 侵袭性物种携带的龙瘟疫 (阿法诺米切斯阿斯塔奇) 的影响评估.
主要成果:
- 意大利的利基最初扩大到不那么突如其来的沿海地区,直到20世纪中叶.
- 随着入侵的北美 (Procambarus clarkii, Pacifastacus leniusculus) 和瘟疫的引入,它的位转移到了崎的山地.
- 侵入性鱼占据了意大利鱼历史利基空间的很大一部分,在高海拔,的地区的重叠很小.
结论:
- 种类的实现是高度动态的,特别是在入侵物种压力和疾病下.
- 由于竞争和来自入侵物种的疾病,意大利鱼经历了显著的利基收缩和转移.
- 了解历史的利基动态是预测物种对全球变化的反应和管理入侵物种的关键.
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