COLLECTION OF THE PITCHERPLANT MOSQUITO, WYEOMYIA SMITHII (DIPTERA: CULICIDAE), FROM SASKATCHEWAN

1971 ◽  
Vol 103 (6) ◽  
pp. 886-887 ◽  
Author(s):  
L. Burgess ◽  
J. G. Rempel
Keyword(s):  
Pitcher Plants ◽  
Pitcher Plant ◽  
Wyeomyia Smithii

AbstractLarvae of Wyeomyia smithii (Coquillett) were collected in Saskatchewan from pitcher-plants in swamps near Nipawin, Little Sandy Lake, and Waskesiu. Pupae and adults also were collected at Nipawin. No trace of W. smithii was found in pitcher-plants in a swamp near Duck Lake. Inconclusive evidence was obtained concerning the presence of W. smithii in a pitcher-plant swamp at Prince Albert.

EFFECTS OF FENITROTHION INSECTICIDE ON INHABITANTS OF LEAVES OF THE PITCHER PLANT, SARRACENIA PURPUREA L.

1987 ◽  
Vol 119 (7-8) ◽  
pp. 647-652 ◽  
Author(s):  
W.L. Fairchild ◽  
D.C. Eidt ◽  
C.A.A. Weaver
Keyword(s):  
Sarracenia Purpurea ◽  
Pitcher Plants ◽  
Pitcher Plant ◽  
Wyeomyia Smithii ◽  
Metriocnemus Knabi

AbstractBy injecting fenitrothion into fluid in leaves of pitcher plants, Sarracenia purpurea L., it was determined that the mosquito, Wyeomyia smithii (Coquillett), and the midge, Metriocnemus knabi (Coquillett), are under some risk from fenitrothion forest sprays at the rate of 210 g AI/ha. Wyeomyia smithii is slightly more susceptible than is M. knabi. Other leaf inhabitants, mites and rotifers, were not affected by initial concentrations of fenitrothion in the fluid (up to 9.6 μg/L) that did affect the mosquito and the midge.

scholarly journals NOTES ON THE LARVA OF THE PITCHER - PLANT MOSQUITO

1905 ◽  
Vol 37 (9) ◽  
pp. 332-332 ◽  
Author(s):  
Evelyn Groesbeeck Mitchell
Keyword(s):  
South Carolina ◽  
New Jersey ◽  
Pitcher Plants ◽  
Pitcher Plant ◽  
Wyeomyia Smithii ◽  
Botanical Gardens ◽  
Second Stage

Since the discovery of Wyeomyia Smithiiin the leaves of Pitcher plants in New Jersey, by Dr.J.B. Smith, it has been reported from Massachusetts and Florida.On June 16tg of the present year, the writer found a larva of the second stage in a Pitcher-plant in a greenhouse in the Botanical Gardens, Washington, D.C. July 8th, three more specimens were taken there The plants had been brought from South Carolina, and had been in the greenhouse for several Years.

Aquatic insect populations in transplanted and natural populations of the purple pitcher plant, Sarracenia purpurea, on Prince Edward Island, Canada

1996 ◽  
Vol 74 (11) ◽  
pp. 1956-1963 ◽  
Author(s):  
M. Loretta Hardwick ◽  
Donna J. Giberson
Keyword(s):  
Prince Edward Island ◽  
Aquatic Insect ◽  
Natural Populations ◽  
Sarracenia Purpurea ◽  
Plant Abundance ◽  
Pitcher Plants ◽  
Pitcher Plant ◽  
Wyeomyia Smithii ◽  
Metriocnemus Knabi ◽  
Insect Populations

In early July 1991, 234 pitcher plants (Sarracenia purpurea) were transplanted from a Prince Edward Island bog being mined for peat into three bogs that varied with respect to previous pitcher plant abundance. One bog had a thriving natural pitcher plant population prior to transplant, while the other two had fewer than three pitcher plants. Between mid-June and late August 1993, abundances of the pitcher plant inquilines Wyeomyia smithii (Diptera: Culicidae), Metriocnemus knabi (Diptera: Chironomidae) and an unidentified sarcophagid fly (Diptera: Sarcophagidae) from transplant bogs were compared with remaining populations in the source bog and with other natural populations. Of the three inquilines, W. smithii was the most severely affected by transplant; it was extremely rare or absent in transplanted pitchers, although it was found in all other bogs investigated on Prince Edward Island. Metriocnemus knabi larvae were common in all bogs investigated, except for those transplant bogs where pitcher plants were rare prior to transplant. Sarcophagid larvae were found in all of the bogs sampled, and were apparently unaffected by transplant. Desiccation during the transplant process, as well as the time of the transplant, may play a role in the success of recolonization of the pitcher plants after transplanting.

scholarly journals Epistasis Underlying a Fitness Trait Within a Natural Population of the Pitcher-Plant Mosquito, Wyeomyia smithii

Genetics ◽  
2004 ◽  
Vol 169 (1) ◽  
pp. 485-488 ◽  
Author(s):  
William E. Bradshaw ◽  
Brian P. Haggerty ◽  
Christina M. Holzapfel
Keyword(s):  
Natural Population ◽  
Pitcher Plant ◽  
Wyeomyia Smithii ◽  
Fitness Trait

scholarly journals The white-topped pitcher plant—a case of precarious abundance

Oryx ◽  
1990 ◽  
Vol 24 (4) ◽  
pp. 201-207 ◽  
Author(s):  
George W. Folkerts
Keyword(s):  
Land Use ◽  
Domestic Market ◽  
Wild Populations ◽  
Pitcher Plants ◽  
Pitcher Plant ◽  
Great Demand ◽  
The Usa ◽  
Floral Displays

White-topped pitcher plants, among the most attractive members of the genus Sarracenia, are in great demand for floral displays, in the USA and Europe. It is doubtful whether current levels of exploitation are sustainable; there is no way of controlling harvesting for the domestic market and the monitoring of exports is difficult. As well as this pressure, wild populations are perhaps in even greater danger from changes in land use.

FITNESS CONSEQUENCES OF HIBERNAL DIAPAUSE IN THE PITCHER-PLANT MOSQUITO,WYEOMYIA SMITHII

Ecology ◽  
1998 ◽  
Vol 79 (4) ◽  
pp. 1458-1462 ◽  
Author(s):  
W. E. Bradshaw ◽  
P. A. Armbruster ◽  
C. M. Holzapfel
Keyword(s):  
Pitcher Plant ◽  
Wyeomyia Smithii ◽  
Fitness Consequences

Photoperiodic control of development in the pitcher-plant mosquito, Wyeomyia smithii

1972 ◽  
Vol 50 (6) ◽  
pp. 713-719 ◽  
Author(s):  
William E. Bradshaw ◽  
L. Philip Lounibos
Keyword(s):  
Larval Instar ◽  
Pitcher Plant ◽  
Photoperiodic Control ◽  
Wyeomyia Smithii ◽  
Diapause Termination ◽  
Environmental Consequences ◽  
The Third ◽  
Short Day ◽  
Critical Daylength ◽  
Short Days

Wyeomyia smithii diapause in the third larval instar. Long days avert or terminate and short days promote or maintain diapause. Diapause occurs early in the third instar and may be terminated by photoperiodic stimuli without the intervention of chilling or other factors. Fifty percent termination of diapause requires about 3 long days and another [Formula: see text] days are consumed in the third instar for postdiapause development. The critical daylength is identical for both the initiation and termination of diapause, 14.75 h of light per day. But, the photoperiodic clock monitoring diapause decisions is several times as accurate during initiation as in termination, reflecting the more drastic environmental consequences of development misdirection in the fall than in the spring. This accuracy is further enhanced by a prolongation of the second instar under short-day conditions. The doubling in the duration of the second instar exhibits the same critical daylength properties as diapause determination.The third instar is divisible into four distinct developmental periods: prediapause, diapause, termination of diapause, and postdiapause. Methods for quantifying these periods are presented. Similar manipulations could be employed for other diapausing arthropods, regardless of the stage at which dormancy occurs or the cues used in its regulation.

Reproductive value in a complex life cycle: heat tolerance of the pitcher-plant mosquito, Wyeomyia smithii

2005 ◽  
Vol 18 (1) ◽  
pp. 101-105 ◽  
Author(s):  
P. A. Zani ◽  
L. W. Cohnstaedt ◽  
D. Corbin ◽  
W. E. Bradshaw ◽  
C. M. Holzapfel
Keyword(s):  
Life Cycle ◽  
Heat Tolerance ◽  
Complex Life Cycle ◽  
Reproductive Value ◽  
Pitcher Plant ◽  
Wyeomyia Smithii

scholarly journals Bacteria facilitate prey retention by the pitcher plant Darlingtonia californica

2016 ◽  
Vol 12 (11) ◽  
pp. 20160577 ◽  
Author(s):  
David W. Armitage
Keyword(s):  
Bacterial Community ◽  
Physical Properties ◽  
Bacterial Communities ◽  
Prey Capture ◽  
Surface Tensions ◽  
Pitcher Plants ◽  
Pitcher Plant ◽  
Plant Microbe Interaction

Bacteria are hypothesized to provide a variety of beneficial functions to plants. Many carnivorous pitcher plants, for example, rely on bacteria for digestion of captured prey. This bacterial community may also be responsible for the low surface tensions commonly observed in pitcher plant digestive fluids, which might facilitate prey capture. I tested this hypothesis by comparing the physical properties of natural pitcher fluid from the pitcher plant Darlingtonia californica and cultured ‘artificial’ pitcher fluids and tested these fluids' prey retention capabilities. I found that cultures of pitcher leaves' bacterial communities had similar physical properties to raw pitcher fluids. These properties facilitated the retention of insects by both fluids and hint at a previously undescribed class of plant–microbe interaction.

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