Abstract
Population ecology of Culex tarsalis Coquillett was studied at Hart Park, Kern County, Calif., during the winters of 1982-83 and 1983-84. Female relative abundance declined during autumn to a minimum in December and January. Most females collected during winter were empty, inseminated, and nulliparous, indicating a cessation of gonotrophic activity. However, observations on ovarian morphometry indicated that the hibernating states achieved included reproductive diapause, quiescence, and perhaps oligopause. Females remained vagile and readily repopulated resting sites after removal sampling. Relative abundance increased in late February and March in association with the renewal of gonotrophic activity, but before the emergence of the progeny of overwintering females. Overwintering arboviruses were not isolated from 1,176 C. tarsalis females collected from November 1983 to March 1984. Observations on ovarian dynamics of concurrently collected C. quinquefasciatus indicated that the hibernating states achieved were comparable with those observed for C. tarsalis. Relative abundance declined throughout winter and did not recover coincidentally with the renewal of gonotrophic activity in March.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 677-685 |
| Number of pages | 9 |
| Journal | Annals of the Entomological Society of America |
| Volume | 79 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 1 1986 |
| Externally published | Yes |
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Keywords
- arboviruses
- Culex quinquefasciatus
- Culex tarsalis
- diapause
- overwintering
ASJC Scopus subject areas
- Insect Science
Cite this
Overwintering Studies on Culex tarsalis (Diptera : Culicidae) in Kern County, California: Temporal Changes in Abundance and Reproductive Status with Comparative Observations on C. quinquefasciatus (Diptera: Culicidae). / Reisen, William; Meyer, Richard P.; Milby, Marilyn M.
In: Annals of the Entomological Society of America, Vol. 79, No. 3, 01.05.1986, p. 677-685.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Overwintering Studies on Culex tarsalis (Diptera
T2 - Culicidae) in Kern County, California: Temporal Changes in Abundance and Reproductive Status with Comparative Observations on C. quinquefasciatus (Diptera: Culicidae)
AU - Reisen, William
AU - Meyer, Richard P.
AU - Milby, Marilyn M.
PY - 1986/5/1
Y1 - 1986/5/1
N2 - Population ecology of Culex tarsalis Coquillett was studied at Hart Park, Kern County, Calif., during the winters of 1982-83 and 1983-84. Female relative abundance declined during autumn to a minimum in December and January. Most females collected during winter were empty, inseminated, and nulliparous, indicating a cessation of gonotrophic activity. However, observations on ovarian morphometry indicated that the hibernating states achieved included reproductive diapause, quiescence, and perhaps oligopause. Females remained vagile and readily repopulated resting sites after removal sampling. Relative abundance increased in late February and March in association with the renewal of gonotrophic activity, but before the emergence of the progeny of overwintering females. Overwintering arboviruses were not isolated from 1,176 C. tarsalis females collected from November 1983 to March 1984. Observations on ovarian dynamics of concurrently collected C. quinquefasciatus indicated that the hibernating states achieved were comparable with those observed for C. tarsalis. Relative abundance declined throughout winter and did not recover coincidentally with the renewal of gonotrophic activity in March.
AB - Population ecology of Culex tarsalis Coquillett was studied at Hart Park, Kern County, Calif., during the winters of 1982-83 and 1983-84. Female relative abundance declined during autumn to a minimum in December and January. Most females collected during winter were empty, inseminated, and nulliparous, indicating a cessation of gonotrophic activity. However, observations on ovarian morphometry indicated that the hibernating states achieved included reproductive diapause, quiescence, and perhaps oligopause. Females remained vagile and readily repopulated resting sites after removal sampling. Relative abundance increased in late February and March in association with the renewal of gonotrophic activity, but before the emergence of the progeny of overwintering females. Overwintering arboviruses were not isolated from 1,176 C. tarsalis females collected from November 1983 to March 1984. Observations on ovarian dynamics of concurrently collected C. quinquefasciatus indicated that the hibernating states achieved were comparable with those observed for C. tarsalis. Relative abundance declined throughout winter and did not recover coincidentally with the renewal of gonotrophic activity in March.
KW - arboviruses
KW - Culex quinquefasciatus
KW - Culex tarsalis
KW - diapause
KW - overwintering
UR - http://www.scopus.com/inward/record.url?scp=0012193814&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0012193814&partnerID=8YFLogxK
U2 - 10.1093/aesa/79.4.677
DO - 10.1093/aesa/79.4.677
M3 - Article
AN - SCOPUS:0012193814
VL - 79
SP - 677
EP - 685
JO - Annals of the Entomological Society of America
JF - Annals of the Entomological Society of America
SN - 0013-8746
IS - 3
ER -