Trap Responses of Flying Insects. The Influence of Trap - download pdf or read online

By R. C. Muirhead-Thompson

ISBN-10: 0125097557

ISBN-13: 9780125097550

Insect trapping is a simple box examine instrument for lots of biologists, whether or not they are learning insect pests, ailment vectors or insect ecology for its personal sake. Any box entomologist considering a brand new insect trapping application or trying to enhance or boost an latest scheme will make the most of this vast overview of flying insect traps, during which the writer attracts on a wide selection of tools utilized by assorted study tasks from all around the world.
Over the years a very good many traps were constructed and without end converted to fit specific species, habitats, and study requisites. In nearly each case the layout of the catch interacts with the explicit habit of the bugs concerned to bias catch potency. additionally, the restricted discussion among employees in numerous topic disciplines and habitats has prompted a scarcity of recent details on hand to box entomologists as a complete.

Key Features
* Describes and evaluates the most equipment of trapping flying insects
* Brings jointly effects from agricultural/forest/pest reviews and people from clinical entomology

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Additional info for Trap Responses of Flying Insects. The Influence of Trap Design on Capture Efficiency

Example text

These traps capture only a negligible proportion of the exposed fly population. 1 Introduction Of all the environmental factors likely to influence the efficiency of light traps, attention has long been given to the effect of moonlight and the lunar cycle. One of the most consistent facts emerging from the long series of observations at Rothamsted, the original centre for studies on light trapping of moths, was that the trap catches were at their lowest around the period of full moon, and at their highest at periods of no moon or new moon (Williams, 1936).

In the trap of conventional downdraught type, the air stream has to overcome the lift factor in mosquito flight. In contrast, if the trap produces an upward-moving air stream, the mosquito flight reaction will increase the chances of capture, instead of assisting its escape. It is worth noting that although both New Jersey light traps and CDC traps have been used for other small night-flying Diptera, such as biting midges (Culicoides) and sandflies (Phlebotomus), in the USA Caribbean and Central American region, the former design was found to be ineffective in trapping European species of Phlebotomus in the classical studies in southern France (Rioux and Golvan, 1969).

In the less controlled conditions of the animal houses used in field tests, another variable factor affecting trap efficiency was disclosed: variations in the light intensity of the trap relative to the background light of the environment, especially during the daylight hours of maximum fly activity. The cumulative impact of all these variables influencing fly response to electrocuting light traps almost certainly accounts for the many conflicting and inconsistent results of experimental work in the field.

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Trap Responses of Flying Insects. The Influence of Trap Design on Capture Efficiency by R. C. Muirhead-Thompson

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