HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Bailey, C. L. Articles by Hayes, D. E. Search for Related Content PubMed PubMed Citation Articles by Bailey, C. L. Articles by Hayes, D. E.

Winter Survival of Blood-Fed and Nonblood-Fed Culex Pipiens L.^*

Comparisons were made between groups of Culex pipiens L. with different physiologic histories to test their ability to sucessfully overwinter under field conditions. On 14 December 1978, each group of mosquitoes was marked with a distinctive fluorescent dust and released inside an abandoned ammunition bunker at Fort Washington, Maryland. To insure that dead mosquitoes could be dissected and information obtained on their ovarian development, a sample of females from each group was also released into a plexiglass cage that was attached to the inside wall of the room. The physiologic histories of each group of mosquitoes were as follows: (a) "wild caught," those which had entered the bunker prior to the release date, (b) "lab-reared diapausing nonblood-fed," (c) "lab-reared diapausing blood-fed nongravid," (d) "lab-reared diapausing blood-fed gravid," (e) "lab-reared nondiapausing nonblood-fed," and (f) "lab-reared nondiapausing blood-fed." By 8 March 1979, all of the lab-reared nondiapausing groups, of mosquitoes released in the room had died, whereas 15.7, 22.4 and 24.7% were recovered from the "lab-reared diapausing nonblood-fed," "lab-reared diapausing blood-fed" (gravid and nongravid) and "wild caught" mosquitoes, respectively. For the mosquitoes in the cage, only 0, 2.1 and 7.0% of the "lab-reared nondiapausing blood-fed," "lab-reared nondiapausing nonblood-fed" and "lab-reared diapausing blood-fed gravid," respectively, survived. This compared to 45.4, 56.8 and 58.0%, respectively, for the "lab-reared diapausing nonblood-fed," "lab-reared diapausing blood-fed nongravid" and the "wild caught" groups. These data provide evidence to support the theory that a significant number of diapausing Cx. pipiens which have taken a prehibernation (possibly viremic) blood meal do not develop eggs and can survive the winter at rates comparable to diapausing nonblood-fed mosquitoes.

Accepted for publication February 9, 1982.

^* In conducting the research described in this report, the investigators adhered to the "Guide for the Care and Use of Laboratory Animals," as promulgated by the Committee on Care and Use of Laboratory Animals of the Institute of Laboratory Animal Resources, National Research Council. The facilities are fully accredited by the American Association for Accreditation of Laboratory Animal Care.

The views of the authors do not purport to reflect the positions of the Department of the Army or the Department of Defense.

Address reprint requests to: Charles L. Bailey, Department of Arboviral Entomology, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland 21701.

This article has been cited by other articles:

				K. E. KUNKEL, R. J. NOVAK, R. L. LAMPMAN, and W. GU MODELING THE IMPACT OF VARIABLE CLIMATIC FACTORS ON THE CROSSOVER OF CULEX RESTAUNS AND CULEX PIPIENS (DIPTERA: CULICIDAE), VECTORS OF WEST NILE VIRUS IN ILLINOIS Am J Trop Med Hyg, January 1, 2006; 74(1): 168 - 173. [Abstract] [Full Text] [PDF]

				R. M. Robich and D. L. Denlinger Diapause in the mosquito Culex pipiens evokes a metabolic switch from blood feeding to sugar gluttony PNAS, November 1, 2005; 102(44): 15912 - 15917. [Abstract] [Full Text] [PDF]