منابع مشابه
Why do insects bite? A review of blood sucking behaviour.
Introduction There is considerable variation in the extent of the association between a blood sucking insect and its host. Blood sucking Diptera such as mosquitoes are temporary ectoparasites, only visiting the host for long enough to obtain a blood meal. Temporary ectoparasites such as tsetse flies, tabanids and mosquitoes tend to take relatively large blood meals, thus limiting the danger fro...
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C arbon dioxide is a potent ‘‘greenhouse’’ gas. The dramatic increase in its concentration in the atmosphere as a result of human activities, beginning with accelerated fossil fuels combustion in the late 18th century, and perhaps even earlier, with modern agricultural expansion 8,000 years ago (1, 2), is driving a striking rise in global temperature (3). For the past 650,000 years, until relat...
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Honeybees secrete 2-heptanone (2-H) from their mandibular glands when they bite. Researchers have identified several possible functions: 2-H could act as an alarm pheromone to recruit guards and soldiers, it could act as a chemical marker, or it could have some other function. The actual role of 2-H in honeybee behaviour remains unresolved. In this study, we show that 2-H acts as an anaesthetic...
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ژورنال
عنوان ژورنال: Nature
سال: 1997
ISSN: 0028-0836,1476-4687
DOI: 10.1038/37530