Overwintering in the Bamboo Mosquito Tripteroides bambusa (Diptera: Culicidae) during a warm, but unpredictably changing, winter
The bamboo mosquito, Tripteroides bambusa (Yamada) (Diptera: Culicidae), is a common insect across forested landscapes in Japan. Several studies have reported its overwintering as larvae and eggs, in both natural and artificial water containers. Nevertheless, it is unclear how sensitive this mosqu...
| Autores Principales: | Chaves, Luis Fernando, Jian, Jiun-Yu, Moji, Kazuhiko |
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| Formato: | Artículo |
| Idioma: | Inglés |
| Publicado: |
Oxford University Press on behalf of Entomological Society of America
2022
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| Materias: | |
| Acceso en línea: |
https://academic.oup.com/ee/article/47/1/148/4773892 http://hdl.handle.net/11056/24393 |
| Sumario: |
The bamboo mosquito, Tripteroides bambusa (Yamada) (Diptera: Culicidae), is a common insect across forested
landscapes in Japan. Several studies have reported its overwintering as larvae and eggs, in both natural and
artificial water containers. Nevertheless, it is unclear how sensitive this mosquito species is to changes in weather
patterns associated with global warming. The El Niño event of 2015 through 2016 was one of the strongest on record
and provided an ideal scenario for observations on the overwintering of the bamboo mosquito during a winter
predicted to be unusually warm. Thus, we set oviposition traps in mid October 2015 and made weekly observations,
from December 2015 to May 2016, on bamboo mosquito larval recruitment and pupation in Nagasaki, Japan. We
found that larvae were pupating as late as the first week of January (prior records from the study site indicated
mosquito pupation ended by mid-late October) and that pupation resumed in mid April (one month earlier than
previous records at the study site). We also found that fourth instar larvae were able to survive in frozen oviposition
traps following an extremely unusual snowstorm and cold spell and that recruitment of larvae from eggs happened
after this unusual event. Our analysis suggested that overwintering and metamorphosis of the bamboo mosquito is
sensitive to average and extreme temperatures, the latter measured by temperature kurtosis. Our results highlight
the need to better understand changes in overwintering strategies in insects, and associated trade-offs and impacts
on population dynamics, in light of climate change. |
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