Letter | Published:

Components of the Catch Curve of Culex annulus in Singapore

Nature volume 180, pages 14961497 (28 December 1957) | Download Citation

Subjects

Abstract

REGULAR cycles of flight and/or feeding activity are known to occur in a variety of insects, particularly mosquitoes, and theories have been advanced to account for the form and regularity of the observed rhythms; references to most recent work on mosquito-biting cycles have been given by Haddow1. In discussing the biting cycle of Anopheles leucosphyrus in Borneo2, I have myself suggested that the catch curve is the resultant of two separate factors: a cycle of arrival at the bait, and a cycle of activation to produce feeding activity; also that arrival at the bait is conditioned by initial spatial distribution, a cycle of activation to flight activity, and factors orientating such flight. With regard bo the latter, it was suggested that the mosquitoes arrive at the bait by a process of random wandering, or at least one not orientated by the bait itself. Recently, my attention has been directed to a paper by Webster and DeCoursey3, demonstrating that the daily catches in a variety of arthropods are in fact determined by a process of random arrival at the trap, in accordance with a theoretically derived equation of the form: where K is the initial population, C the cumulative catch, t time, and a and b are constants.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , Nature, 177, 531 (1956).

  2. 2.

    , Trans. Roy. Ent. Soc. Lond., 108, 37 (1956).

  3. 3.

    , and , Ann. Ent. Soc. Amer., 47, 178 (1954).

Download references

Author information

Affiliations

  1. Department of Parasitology, University of Malaya, Singapore.

    • DONALD H. COLLESS

Authors

  1. Search for DONALD H. COLLESS in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/1801496a0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.