Evidence for facultative migratory flight behavior in Helicoverpa armigera (Noctuidae: Lepidoptera) in India
| Autor: | Patil Jyothi, Shivansh Dave, Patil Shivayogiyappa, J. Ashoka, Prabhuraj Aralimarad, Jason W. Chapman, Vijaya Wali, Ka S. Lim, M. Bheemanna, Sanjay P. Sane |
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Physiology Social Sciences Moths Danaus Animal Wings Ornithology Bird Flight Medicine and Health Sciences Psychology Animal Anatomy Animal Flight Multidisciplinary biology Animal Behavior Eukaryota Insects Aspect Ratio Moths and Butterflies Physical Sciences Insect migration Bird flight Noctuidae Medicine Female Anatomy Research Article animal structures Arthropoda Science Zoology India Geometry Helicoverpa armigera Insect flight Animals Facultative Behavior Wing Biological Locomotion Flight Speeds fungi Organisms Biology and Life Sciences biology.organism_classification Invertebrates Flight Animal Animal Migration Insect Flight Entomology Mathematics |
| Zdroj: | PLoS ONE, Vol 16, Iss 1, p e0245665 (2021) PLoS ONE |
| Popis: | Despite its deleterious impact on farming and agriculture, the physiology and energetics of insect migration is poorly understood due to our inability to track their individual movements in the field. Many insects, e.g. monarch butterflies,Danaus plexippus(L.), are facultative migrants. Hence, it is important to establish whether specific insect populations in particular areas migrate. The polyphagous insect,Helicoverpa armigera(Hübner), is especially interesting in this regard due to its impact on a variety of crops. Here, we used a laboratory-based flight mill assay to show thatHelicoverpa armigerapopulations clearly demonstrate facultative migration in South India. Based on various flight parameters, we categorized male and female moths as long, medium or short distance fliers. A significant proportion of moths exhibited long-distance flight behavior covering more than 10 km in a single night, averaging about 8 flight hours constituting 61% flight time in the test period. The maximum and average flight speeds of these long fliers were greater than in the other categories. Flight activity across sexes also varied; male moths exhibited better performance than female moths. Wing morphometric parameters including forewing length, wing loading, and wing aspect ratio were key in influencing long-distance flight. Whereas forewing length positively correlated with flight distance and duration, wing loading was negatively correlated. |
| Databáze: | OpenAIRE |
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