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两个主要的入侵性白物种正在通过人类传播和杂交

Thomas Chouvenc¹, Ericka E Helmick¹, Alvin Brown¹

¹Fort Lauderdale Research and Education Center, University of Florida Institute of Food and Agricultural Sciences, Davie, FL, USA.

Proceedings. Biological sciences

|May 20, 2025

概括

两个入侵性白物种Coptotermes gestroi和Coptotermes formosanus正在佛罗里达州进行杂交. 这些杂交白殖民地对进一步扩散和引入新环境构成重大风险.

科学领域:

生态生态学生态生态学
进化生物学进化生物学
昆虫学昆虫学是一门学科.

背景情况:

人类介导的生物入侵可能会导致独立进化的血统之间的内向杂交.
侵入性物种可能会对进化,生态,经济和社会产生重大影响.
佛罗里达州有两种主要的入侵性虫害物种Coptotermes gestroi和Coptotermes formosanus,它们的分布在佛罗里达州重叠.

研究的目的:

为佛罗里达州Coptotermes gestroi和Coptotermes formosanus之间持续的传播和杂交提供证据.
调查F1杂交物有可能建立可行的F2殖民地.
评估杂交对未来扩散和入侵的影响.

主要方法:

实地观测了 alates.之间的异种求爱行为.
在野外建立和成熟F1杂交殖民地.
实验室反向交叉实验以评估F1杂交的繁殖活力.

主要成果:

在C. gestroi和C. formosanus alates之间的异种求爱导致了野外F1杂交殖民地的建立.
这些F1杂交殖民地已经成熟,产生了F1杂交 alates.
实验室反向交叉证实,F1杂交雌性可以与父母物种的雄性建立可行的F2殖民地.

结论:

在佛罗里达州,C. gestroi和C. formosanus之间的侵入性杂交正在独立发生.
在佛罗里达州,船只工业附近建立的混合殖民地,可以作为进一步分散的来源.
F1杂交物有可能扩散到佛罗里达州以外的地方,从而增加侵袭范围.

关键词:

人类形态的分散分散.这是生物入侵.混合化混合化混合化一个术语的特质.

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