Food shortage affects flight migration of the giant water bug Lethocerus deyrolli in the prewintering season

Autor:	Shin-ya Ohba, Hideharu Takagi
Rok vydání:	2005
Předmět:	Ecology biology Lethocerus Field experiment fungi Heteroptera Endangered species Aquatic Science biology.organism_classification Belostomatidae Toxicology Habitat parasitic diseases Aquatic insect Paddy field Water Science and Technology
Zdroj:	Limnology. 6:85-90
ISSN:	1439-863X 1439-8621
DOI:	10.1007/s10201-005-0148-7
Popis:	The endangered giant water bug Lethocerus deyrolli (Vuillefroy) is frequently attracted in large numbers to artificial lights in Japan. To examine factors enhancing flight migration for L. deyrolli, we carried out field work in western Hyogo Prefecture, central Japan, in September during the nonreproductive and prewintering season. The body weight of specimens collected under flight migration (flight bugs) was significantly less than that of those collected in ponds (pond bugs). A field experiment using open cages in a rice paddy field was carried out with two treatments, with and without a food supply. The remaining rate of L. deyrolli for the food present treatment was significantly higher than that for the food absent treatment for the first two days. These results suggest that L. deyrolli would fly in search of food when the food supply of the present habitat becomes unsuitable.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b749692fadf7290ce44e88dd0f7a7971 https://doi.org/10.1007/s10201-005-0148-7 Zobrazit plný text záznamu Full text from SpringerLink