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You searched for: Journal name Physiological entomology Remove constraint Journal name: Physiological entomology Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Source 1997 v.22 no.4 Remove constraint Source: 1997 v.22 no.4
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1. Discontinuous ventilation and energetics of locomotion in the desert-dwelling female mutillid wasp, Dasymutilla gloriosa

Author:
Duncan, F.D.; Lighton, J.R.B.
Source:
Physiological entomology 1997 v.22 no.4 pp. 310-315
ISSN:
0307-6962
Subject:
interspecific variation; locomotion; Hymenoptera; gas exchange; energy metabolism; desert animals; respiratory quotient
Abstract:
... Data on the discontinuous ventilation cycle and cost of pedestrian locomotion in female Dasymutilla gloriosa (Sauss.), a desert-dwelling mutillid, are described and compared with equivalent data from other Hymenoptera. The discontinuous ventilation cycle was intermediate between that found in xeric and mesic hymenopterans, with the open phase being about 20% of the cycle. No noticeable flutter pha ...
DOI:
10.1111/j.1365-3032.1997.tb01174.x

2. Effects of carbon dioxide, acetone and 1-octen-3-ol on the flight responses of the stable fly, Stomoxys calcitrans, in a wind tunnel

Author:
Schofield, S.; Brady, J.
Source:
Physiological entomology 1997 v.22 no.4 pp. 380-386
ISSN:
0307-6962
Subject:
acetone; carbon dioxide; octenol; kairomones; wind tunnels; flight; host seeking; odors; Stomoxys calcitrans
Abstract:
... The flight behaviour of Stomoxys calcitrans (L.) in odour plumes containing carbon dioxide, acetone or 1-octen-3-ol was assessed from video recordings. A downwind bias was evident in clean air, whereas all three test chemicals elicited upwind anemotaxis. Response thresholds were approximately 0.006% for CO2, between 0.001 and 0.01 micrograms/l for acetone, and approximately 0.0002 micrograms/l for ...
DOI:
10.1111/j.1365-3032.1997.tb01183.x

3. Juvenile Hormone biosynthesis and utilization of farnesoic acid during the final larval stadium of the ring-legged earwig

Author:
Lunz, J.G. II.; Rankin, S.M.
Source:
Physiological entomology 1997 v.22 no.4 pp. 365-372
ISSN:
0307-6962
Subject:
Euborellia annulipes; juvenile hormones; biosynthesis; corpora allata; farnesol; larvae; adults; gender differences
Abstract:
... The regulation of Juvenile Hormone (JH) III biosynthesis and release by the corpora allata (CA) was studied in final instar male and female larvae of the earwig, Euborella annulipes, using a radiochemical assay in vitro. In males, maximal biosynthesis of JH III occurred on day 1, then declined to virtually undetectable levels for the following 12 days of the stadium, and finally increased on days ...
DOI:
10.1111/j.1365-3032.1997.tb01181.x

4. Manoeuvres of female Brachymeria intermedia flying towards host-related odours in a wind tunnel

Author:
Kerguelen, V.; Carde, R.T.
Source:
Physiological entomology 1997 v.22 no.4 pp. 344-356
ISSN:
0307-6962
Subject:
parasitoids; wind tunnels; flight; host seeking; odors; Brachymeria tibialis
Abstract:
... Mature female Brachymeria intermedia (Hymenoptera: Chalcididae) were conditioned to fly towards vanilla odour in a wind tunnel. We analysed the tracks of wasps flying along turbulent plumes of either host odour (pupae of the gypsy moth, Lymantria dispar) or vanilla odour, along either a ribbon plume or a turbulent plume of vanilla odour, and before and after plume removal. Wasps flew in similar sh ...
DOI:
10.1111/j.1365-3032.1997.tb01179.x

5. Oxygen uptake in coprophilous beetles (Aphodius, Geotrupes, Sphaeridium) at low oxygen and high carbon dioxide concentrations

Author:
Holter, P.; Spangenberg, A.
Source:
Physiological entomology 1997 v.22 no.4 pp. 339-343
ISSN:
0307-6962
Subject:
interspecific variation; carbon dioxide; dung beetles; hypercapnia; oxygen consumption; Geotrupes; Hydrophilidae; hypoxia; oxygen
Abstract:
... The rate of O2 consumption was measured in five coprophilous beetle species (common in Denmark) at O2 concentrations from 1-21%. With the exception of the mainly soil-living Geotrupes spiniger (Marsham) (Geotrupidae), these beetles are probably exposed to severe hypoxia in fresh cattle pats. Aphodius fossor (Linnaeus), A. contaminatus (Herbst) (Aphodiidae) and Sphaeridium lunatum Fabricius (Hydrop ...
DOI:
10.1111/j.1365-3032.1997.tb01178.x

6. Photoperiodic induction of diapause in the spider mite Tetranychus urticae: qualitative or quantitative time measurement?

Author:
Kroon, A.; Veenendaal, R.L.; Veerman, A.
Source:
Physiological entomology 1997 v.22 no.4 pp. 357-364
ISSN:
0307-6962
Subject:
Tetranychus urticae; diapause; photoperiod; photoperiodism; ambient temperature; measurement; duration
Abstract:
... Insects and mites may measure photoperiods either by classifying them as long or short relative to a critical value (qualitative time measurement) or by using the absolute value (quantitative time measurement). The spider mite Tetranychus urticae is thought to use a qualitative mechanism of time measurement. In this paper we present the results of experiments with an inbred line of the spider mite ...
DOI:
10.1111/j.1365-3032.1997.tb01180.x

7. Variation in rates of nitrogen fixation in termites: response to dietary nitrogen in the field and laboratory

Author:
Curtis, A.D.; Waller, D.A.
Source:
Physiological entomology 1997 v.22 no.4 pp. 303-309
ISSN:
0307-6962
Subject:
diet; Reticulitermes; nitrogen; wood; nitrogen content; nitrogen fixation; nitrogenase; enzyme activity
Abstract:
... Termites contribute nitrogen to their habitat through the nitrogenase activity of their bacterial symbionts. Previous studies indicate that high levels of dietary nitrogen suppress nitrogen fixation in termites. We examined the effects of dietary nitrogen on fixation rates in termites in both field and laboratory experiments. Ten field colonies of Reticulitermes were collected and assayed for nitr ...
DOI:
10.1111/j.1365-3032.1997.tb01173.x

8. The effects of mass and age on standard metabolic rate in house crickets

Author:
Hack, M.A.
Source:
Physiological entomology 1997 v.22 no.4 pp. 325-331
ISSN:
0307-6962
Subject:
metabolism; Acheta domesticus; body weight; oxygen consumption
Abstract:
... This study employed flow-through respirometry to measure the oxygen consumption rates (VO2) of inactive male house crickets, Acheta domesticus L. (Orthoptera: Gryllidae), and to quantify the effects of body mass and adult age on standard metabolic rate (SMR). The VO2 increased with male body mass at a rate similar to that found in other studies of insect aerobic metabolism. The data reported in th ...
DOI:
10.1111/j.1365-3032.1997.tb01176.x

9. Cold tolerance of the aphid predator Episyrphus balteatus (DeGeer) (Diptera: Syrphidae)

Author:
Hart, A.J.; Bale, J.S.
Source:
Physiological entomology 1997 v.22 no.4 pp. 332-338
ISSN:
0307-6962
Subject:
Episyrphus balteatus; cold tolerance; overwintering; ambient temperature; acclimation; mortality; predators; supercooling point; United Kingdom
Abstract:
... Larvae of the hoverfly Episyrphus balteatus (DeGeer) are important predators of aphids in the U.K. A large proportion of the U.K. population migrates south to warmer climes at the end of summer, but a small number are thought to overwinter in the U.K., with the mated female being the overwintering morph. The cold tolerance of adult flies was investigated to assess the overwintering potential of E. ...
DOI:
10.1111/j.1365-3032.1997.tb01177.x

10. Dietary sucrose and oligosaccharide synthesis in relation to osmoregulation in the pea aphid, Acyrthosiphon pisum

Author:
Rhodes, J.D.; Croghan, P.C.; Dixon, A.F.G.
Source:
Physiological entomology 1997 v.22 no.4 pp. 373-379
ISSN:
0307-6962
Subject:
chemical composition; carbohydrate metabolism; biosynthesis; artificial diets; sucrose; osmotic pressure; Acyrthosiphon pisum; hemolymph; digestive tract; stomach; honeydew; osmoregulation
Abstract:
... A major problem for aphids is the avoidance of dehydration due to a high dietary osmotic pressure. Their adaptations include a high osmotic pressure in the haemolymph and polymerization of dietary sugars to oligosaccharides. The pea aphid, Acyrthosiphon pisum (Harris), was fed on an artificial diet containing 14C-labelled sucrose, and the fate of dietary sucrose was studied using quantitative pape ...
DOI:
10.1046/j.1365-3032.1997.d01-4.x

11. Helicoverpa zea males (Lepidoptera: Noctuidae) respond to the intermittent fine structure of their sex pheromone plume and an antagonist in a flight tunnel

Author:
Fadamiro, H.Y.; Baker, T.C.
Source:
Physiological entomology 1997 v.22 no.4 pp. 316-324
ISSN:
0307-6962
Subject:
Helicoverpa zea; animal behavior; flight; sex pheromones; odors; antagonists; wind tunnels; males
Abstract:
... We investigated the behavioural response of male Helicoverpa zea (Boddie) to the fine-scale structure of an odour plume experimentally modified in a wind tunnel by using an air-pulsing device. Male H. zea flew upwind to pulsed filaments of a binary pheromone blend of (Z)-11-hexadecanal (Z11-16:Ald) and (Z)-9-hexadecanal (Z9-16:Ald) in the ratio of 20:1. Sustained upwind flight in experimentally al ...
DOI:
10.1111/j.1365-3032.1997.tb01175.x

12. Monoterpenes emitted by the large pine weevil, Hylobius abietis (L.) feeding on Scots pine, Pinus sylvestris L

Author:
Zagatti, P.; Lemperiere, G.; Malosse, C.
Source:
Physiological entomology 1997 v.22 no.4 pp. 394-400
ISSN:
0307-6962
Subject:
chemical composition; volatile compounds; electroantennography; insect attractants; Hylobius abietis; allelochemicals; beta-pinene; alpha-pinene; nutrition; Pinus sylvestris; emissions; chemical constituents of plants
Abstract:
... Attraction of the large pine weevil, Hylobius abietis (L.) (Coleoptera: Curculionidae) to pine logs was enhanced by the presence of weevils already on the logs. We investigated the volatiles emitted by insects feeding on host trees to determine the mechanism of the attraction. Chemical analyses of the collected volatiles showed large amounts of monoterpenes. There were no qualitative differences i ...
DOI:
10.1111/j.1365-3032.1997.tb01185.x

13. Physiological factors regulating polyandry in Lobesia botrana (Lepidoptera: Tortricidae)

Author:
Torres-Vila, L.M.; Stockel, J.; Rodriguez-Molina, M.C.
Source:
Physiological entomology 1997 v.22 no.4 pp. 387-393
ISSN:
0307-6962
Subject:
Lobesia botrana; insemination; body weight; mating systems; mating frequency
Abstract:
... The effects of several physiological factors related to female multiple mating in the monandrous Lobesia botrana Denis and Schiffermuller (Lepidoptera: Tortricidae) were studied under laboratory conditions. Polyandry was assessed observing the induction of re-calling in previously once-mated females. Female age at first mating had no effect on induction of re-calling during practically the whole o ...
DOI:
10.1111/j.1365-3032.1997.tb01184.x