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Economic Entomology Volume 116; Pamphlets (Paperback) Loot Price: R793
Discovery Miles 7 930
Economic Entomology Volume 116; Pamphlets (Paperback): Books Group
Economic Entomology Volume 116; Pamphlets (Paperback): Books Group

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Economic Entomology Volume 116; Pamphlets (Paperback)

Books Group

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Loot Price R793 Discovery Miles 7 930 | Repayment Terms: R74 pm x 12*

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 Excerpt: ...the importance of the visual sense as well as the olfactory sense in the teleoste, particularly Fundulus heteroclitus, experiments on the attractiveness of larval shells to Fundulus were hardly necessary. It seemed wise, however, to make a few such experiments. Four medium-sized male F-unduli were placed in a jar containing larval shells and a few mosquito larva?. The larvae were seized instantly, but not all of them had been captured before the voracious killifishes seized and partly devoured larval and pupal shells. The larval shells were spit out rather forcibly on being about half swallowed. The spitting reaction was not limited to larval and pupal shells. however.' In many of my experiments with killifish placed in jars with large numbers of mosquito larva?, a sated individual would act like the small boy at Thanksgsiving, and seize larva? which it could not stomach. After a few such "tries" the fish sometimes rest and meditate on the bottom of the aquarium, occasionally seizing a few other larvae and swallowing them. From our experiments there is little evidence of a selection of one particular species of mosquito larva. The selection of the mosquito larva in preference to water tigers, Notonecta, shrimps, spiders, daphnids and vegetable food, is attributable, I believe, to the stimulus of the extremely active mosquito larva to the visual sense of the fish. The fish always selected motile larvae in preference to dead or quiescent ones; they chose the larva? as they came to the surface to breathe or seized them as they were sinking. While it is true that the fish also ate dead larvae and those which were quietly resting at the bottom of the jar, they also seized other animals, bits of alga, in fact almost anything which appealed to the eye. T...


Imprint: Rarebooksclub.com
Country of origin: United States
Release date: March 2012
First published: March 2012
Authors: Books Group
Dimensions: 246 x 189 x 19mm (L x W x T)
Format: Paperback - Trade
Pages: 352
ISBN-13: 978-1-130-15243-2
Barcode: 9781130152432
Categories: Books
LSN: 1-130-15243-X

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