Dispersive flight byTriatoma infestansunder natural climatic conditions in Argentina
作者:
C. J. SCHOFIELD,
M. J. LEHANE,
P. McEWEN,
S. S. CATALA,
D. E. GORLA,
期刊:
Medical and Veterinary Entomology
(WILEY Available online 1992)
卷期:
Volume 6,
issue 1
页码: 51-56
ISSN:0269-283X
年代: 1992
DOI:10.1111/j.1365-2915.1992.tb00035.x
出版商: Blackwell Publishing Ltd
关键词: Triatoma infestans;flight;dispersal;wind‐speed;Argentina
数据来源: WILEY
摘要:
Abstract.Male and femaleT. infestanswere released on two consecutive nights in the salinas of Cordoba Province, Argentina, when air temperatures during the flying period averaged 28.5°C. 136 males (43% of the total released) and 170 females (57%) flew on the first night, and 6 males (18%) and 7 females (27%) on the second. Of these, we recovered 23 males and 14 females within loom, and a further female within 200 m, all from the first night's release. The remainder appear to have flown more than 100 m and possibly more than 200 m. In support of this conclusion 4 male and 5 female bugs were recovered in an abandoned brick house 550 m from the release point. Since the proportion of bugs apparently flying more than 200 m is considerably greater than that deduced from previous experiments at lower temperatures (Lehane&Schofield, 1981) it is possible that temperature influences not only the proportion of bugs flying but also the distance flown. Flight appears to be affected by wind speed. On the first night, when there was negligible wind, 43% of male and 57% of female bugs flew. On the second night, with winds gusting at 4–5 m/s, only 18% of the male and 27% of the female bugs fl
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