Campus Units

Entomology, Statistics

Document Type

Article

Publication Version

Published Version

Publication Date

7-1992

Journal or Book Title

Journal of Medical Entomology

Volume

29

Issue

4

First Page

678

Last Page

686

DOI

10.1093/jmedent/29.4.678

Abstract

Pterins accumulate in the head capsules of horn flies, Haematobia irritans irritans (L.), as a linear function of time and temperature. Pterin concentrations were used to estimate chronological ages and to establish correlations between chronological age and ovarian development and reproductive success in 12 horn fly populations in 1988 and 1989. Male ages were estimated spectrofluorometrically. There were statistically significant differences between years in population age structure measured by pterins. Survival rates estimated from pterin concentration distributions were consistent with a one-parameter exponential model with constant survival rate. Mean daily survival rates were 0.81 for females and 0.84 for males in 1988 and 0.66 and 0.75 in 1989. Mean lifetime egg production was ≈26 eggs per female in 1988 and 8 in 1989. Female reproductive success was close to the maximum possible, i.e., there were no net delays in oviposition. Analysis of gonotrophic age distributions provided survival estimates that suggested an increasing risk of mortality with age or age-related biases in sampling.

Comments

This article is published as Krafsur, E. S., A. L. Rosales, J. F. Robison-Cox, and J. P. Turner. "Age structure of horn fly (Diptera: Muscidae) populations estimated by pterin concentrations." Journal of medical entomology 29, no. 4 (1992): 678-686. doi: 10.1093/jmedent/29.4.678.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

Share

COinS