Factors influencing the seasonal life history of the pitcher-plant mosquito, Wyeomyia smithii

Alan O. Bergland, Marci Agotsch, Derrick Mathias, William E. Bradshaw, Christina M. Holzapfel

Research output: Contribution to journalArticle

Abstract

1. The effects of resource levels, thermal microclimate, and seasonal oviposition patterns on fecundity and survivorship in the pitcher-plant mosquito, Wyeomyia smithii (Coq.), were examined at a northern Wisconsin bog over the course of 2 years. Wyeomyia smithii are bivoltine at this locality, thereby enabling the study of summer and overwintering generations separately. 2. Nutrient resources of W. smithii were not limiting and there was no indication of density-dependent survivorship or fecundity. 3. Oviposition rates were highest in young, large pitchers and individual mosquitoes appeared to allocate only a few eggs to any one leaf. 4. Winter was the harsh season, and the principal manifestation of seasonal harshness was reduced survivorship. 5. Overwintering W. smithii that had been oviposited later in the summer had a higher odds of survival than those oviposited earlier in the summer. 6. It was concluded that dispersal of eggs among many pitchers serves to spread the risk of encountering lethal winter temperatures among spatially unpredictable patches.

Original languageEnglish (US)
Pages (from-to)129-137
Number of pages9
JournalEcological Entomology
Volume30
Issue number2
DOIs
StatePublished - Apr 2005
Externally publishedYes

Fingerprint

Wyeomyia smithii
mosquito
survivorship
life history
overwintering
oviposition
fecundity
summer
egg
survival rate
winter
resource
microclimate
bog
bogs
nutrient
Culicidae
heat
temperature
nutrients

Keywords

  • Fecundity
  • Keystone species
  • Life history
  • Oviposition
  • Prey capture
  • Resource levels
  • Seasonality
  • Survivorship
  • Thermal microclimate
  • Wyeomyia smithii

ASJC Scopus subject areas

  • Ecology
  • Insect Science

Cite this

Factors influencing the seasonal life history of the pitcher-plant mosquito, Wyeomyia smithii. / Bergland, Alan O.; Agotsch, Marci; Mathias, Derrick; Bradshaw, William E.; Holzapfel, Christina M.

In: Ecological Entomology, Vol. 30, No. 2, 04.2005, p. 129-137.

Research output: Contribution to journalArticle

Bergland, AO, Agotsch, M, Mathias, D, Bradshaw, WE & Holzapfel, CM 2005, 'Factors influencing the seasonal life history of the pitcher-plant mosquito, Wyeomyia smithii', Ecological Entomology, vol. 30, no. 2, pp. 129-137. https://doi.org/10.1111/j.0307-6946.2005.00687.x
Bergland, Alan O. ; Agotsch, Marci ; Mathias, Derrick ; Bradshaw, William E. ; Holzapfel, Christina M. / Factors influencing the seasonal life history of the pitcher-plant mosquito, Wyeomyia smithii. In: Ecological Entomology. 2005 ; Vol. 30, No. 2. pp. 129-137.
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