Effect of constant and fluctuating temperature on the circadian foraging rhythm of the red imported fire ant,Solenopsis invicta Buren (Hymenoptera: Formicidae) |
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| Authors: | Yanyuan Lei Waqar Jaleel Muhammad Faisal Shahzad Shahbaz Ali Rashid Azad Rao Muhammad Ikram Habib Ali Hamed A. Ghramh Khalid Ali Khan Xiaolong Qiu Yurong He Lihua LYU |
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| Affiliation: | 1. Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, No. 7 Jinying Rd., Tianhe District 510640, Guangzhou, Guangdong, China;2. Department of Entomology, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Pakistan;3. Fareed Biodiversity and Conservation Centre, Department of Agricultural Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan;4. Department of Entomology, The University of Haripur, Pakistan;5. Department of Agronomy, MNS-University of Agriculture, Multan 60,000 Pakistan;6. Department of Agricultural Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan;7. Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;8. Unit of Bee Research and Honey Production, Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;9. Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong Province, China |
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| Abstract: | Understanding circadian foraging rhythms activity of the red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae) foragers at different temperatures is an important step towards developing control measures in Integrated Pest Management (IPM) programs. In this study, the circadian foraging rhythm activities of S. invicta foragersat different temperature were investigated under laboratory and field conditions. Results indicated that the foraging activity increased after sunrise, and maximum foraging occurred at 14:00 (foraging rate was 69.22 ± 0.57 and 72.58 ± 1.15 foragers/min in the first and second year, respectively) in the tea fields of Guangzhou during autumn. Furthermore, foragers demonstrated circadian rhythms and exhibited a unimodal after 24 h. A significant correlation was found between foraging activity and temperature. S. invicta colonies were active at moderate soil temperatures (approximately 26.65 °C to 29.24 °C). The preferred temperature of the colonies was 26 °C, followed by 22 °C and 18 °C in the laboratory. The individual S. invicta activity was maximum at 17:00 (18.67 ± 1.66 times /10 min) and minimum at 5:00 (8.33 ± 2.51 times/10 min) at 26 °C. The fluctuating temperature had a significant impact on individual locomotor activity (r = 0.8979, P < 0.01) but did not alter the rhythm activity. Our results demonstrated that temperature might play an important role in circadian foraging rhythms activity of S. invicta. These results may have implications for the development of more effective fire ant management strategies. |
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| Keywords: | Temperature Circadian foraging rhythms activity |
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