| Autor: |
Lin, Yu-Jen, Yeh, Ching-Hong, Wu, Chen-Zhe, Wu, Li-Hsin |
| Předmět: |
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| Zdroj: |
Biology (2079-7737); Dec2023, Vol. 12 Issue 12, p1482, 14p |
| Abstrakt: |
Simple Summary: This study examines the potential impact of climate and Wolbachia infection (wAgra) on the population dynamics of the yellow crazy ant (Anoplolepis gracilipes) in Taiwan using correlative modeling (MaxEnt), one-year field surveys, and meteorological data. Our analysis revealed that winter temperature and monthly precipitation significantly affect the population dynamics of A. gracilipes, as supported by both MaxEnt models and field observations. Meanwhile, the aggression analysis showed that nests of A. gracilipes obtained from July to October with higher aggression levels had a higher mean maximum temperature and lower prevalence of wAgra in A. gracilipes. Active A. gracilipes workers had a lower prevalence of wAgra than passive workers, indicating increased conflicts between A. gracilipes colonies due to the manipulated dropdown of wAgra prevalence. The yellow crazy ant (Anoplolepis gracilipes (Smith, 1857)) is a prominent invasive species exhibiting variable population dynamics. Through collecting long-term climate data and validating field surveys with MaxEnt SDM projections, our results indicated that winter temperature and precipitation accumulation strongly influence the population dynamics. An aggression analysis showed that A. gracilipes nests with higher aggression levels (over 2.5 scores) experienced a higher mean maximum temperature (31.84 ± 0.43 °C) and lower prevalence of wAgra (84.8 ± 4.70%) in A. gracilipes from June to October. The nest manipulation and aggression experiments confirmed that temperature increases aggression (1.3 to 2.8 scores) among A. gracilipes workers due to the reduced prevalence of wAgra. To the best of our knowledge, this is the first case of a notable reduction in the prevalence of Wolbachia (100 to 66%) within a colony of A. gracilipes while maintaining stable nests for further experiments. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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