Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Variable Iteroparity as a Life-History Tactic in the Pitcher-Plant Mosquito Wyeomyia smithii

William E. Bradshaw
Evolution
Vol. 40, No. 3 (May, 1986), pp. 471-478
DOI: 10.2307/2408570
Stable URL: http://www.jstor.org/stable/2408570
Page Count: 8
  • Read Online (Free)
  • Download ($4.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Variable Iteroparity as a Life-History Tactic in the Pitcher-Plant Mosquito Wyeomyia smithii
Preview not available

Abstract

Larval density, but not geographic origin (Florida to Ontario), affected female fecundity among 12 populations of W. smithii, regardless of whether or not they had opportunity to take blood meals. Neither the degree of iteroparity nor male longevity varied with density or geographic region of origin, but longevity was greater among southern, potentially blood-feeding females, than among northern, nonbiting females. Among the southern females, iteroparity, but not fecundity, increased with opportunity to take blood meals. Specifically, there was no increase in fecundity among females whose larvae were nutritionally deprived relative to females whose larvae were well fed. I interpret the retention of hematophagy and facultatively augmented iteroparity in W. smithii as a means for females developing under predictably impoverished but irregularly opportunistic conditions to reallocate and temporally diversify their reproductive effort.

Page Thumbnails

  • Thumbnail: Page 
471
    471
  • Thumbnail: Page 
472
    472
  • Thumbnail: Page 
473
    473
  • Thumbnail: Page 
474
    474
  • Thumbnail: Page 
475
    475
  • Thumbnail: Page 
476
    476
  • Thumbnail: Page 
477
    477
  • Thumbnail: Page 
478
    478