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Daochao Xing¹, Xiaoshan Zhu²

¹Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.

Environmental research

|February 4, 2024

概括

侵入性鱼物种,鱼 (Cirrhinus mrigala) 和罗胡 (Labeo rohita),在中国珍珠河流域的鱼 (Cirrhinus molitorella) 与土著泥鱼 (Cirrhinus molitorella) 的息地明显重叠. 这种重叠威胁着本地生物多样性,需要有针对性的管理策略.

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
保护科学保护科学

背景情况:

生物入侵是全球和中国淡水生物多样性丧失的主要驱动因素.
珍珠河流域特别容易受到入侵物种的侵害.
鱼 (Cirrhinus mrigala) 和罗胡 (Labeo rohita) 已经入侵珍珠河,威胁着当地泥鱼 (Cirrhinus molitorella).

研究的目的:

调查息地分布和的侵入性海和罗胡与珍珠河的土著泥的息地重叠.
为管理入侵物种和防止生物多样性进一步下降提供见解.

主要方法:

用nicheROVER分析了和碳的稳定同位素比,以量化使用nicheROVER的利基重叠.
使用Maxent模型根据现有数据和生物气候参数预测息地分布.
分析了鱼类和生物气候数据,以了解息地使用和潜在的传播.

主要成果:

侵入性物种与本地泥鱼有显著的利基重叠,鱼为65%,鱼为74%.
高度的利基重叠表明对当地淡水生物多样性的潜在影响很大.
息地分布模型预测了潜在的范围,并突出了动态息地变化.

结论:

侵入性海和罗胡对原生泥和珍珠河的整体生物多样性构成重大威胁.
了解息地重叠和分布对于有效的入侵物种管理至关重要.
这些发现为全球其他河流系统的入侵物种控制提供了洞察力.

关键词:

息地分布息地分布这是入侵的入侵.利基的重叠利基的重叠它是稳定的同位素.

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