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You searched for: Journal name Physiological entomology Remove constraint Journal name: Physiological entomology Publication year rev 7993-2007 Remove constraint Publication year rev: 7993-2007 Source 2007 v.32 no.2 Remove constraint Source: 2007 v.32 no.2
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1. Adjustment of vibratory signals to ambient temperature in a host-searching parasitoid

Author:
KRODER, STEFAN; SAMIETZ, JÖRG; SCHNEIDER, DAVID; DORN, SILVIA
Source:
Physiological entomology 2007 v.32 no.2 pp. 105-112
ISSN:
0307-6962
Subject:
Pimpla turionellae; ambient temperature; females; hosts; mechanoreceptors; models; muscles; parasitoids; pupae
Abstract:
... Certain ichneumonid parasitoids (Hymenoptera) use self-produced vibrations transmitted on plant substrate, so-called vibrational sounding, to locate their immobile concealed pupal hosts. An ambient temperature dependency with higher frequencies and intensities at higher temperatures is postulated because signals are of myogenic origin. Here, temperature influence on vibratory signals is analysed i ...
DOI:
10.1111/j.1365-3032.2006.00551.x

2. Cold hardiness in the black rice bug, Scotinophara lurida

Author:
CHO, JUM RAE; LEE, MINHO; KIM, HONG SUN; KIM, YOUNGGYUN; BOO, KYUNG SAENG
Source:
Physiological entomology 2007 v.32 no.2 pp. 167-174
ISSN:
0307-6962
Subject:
Scotinophara; adults; cold tolerance; cryoprotectants; diapause; exposure duration; fenoxycarb; glucose; glycerol; hemolymph; juvenile hormones; osmolality; overwintering; supercooling point; temperature; trehalose
Abstract:
... The mechanisms and strategies for winter survival of the black rice bug Scotinophara lurida are investigated along with the relationship between cold hardiness and diapause. The ability of S. lurida to survive subzero temperatures varies depending on developmental stage, temperature and exposure duration. Mean supercooling point (SCP) varies from -7.6 to -10.7 °C with developmental stage, but is n ...
DOI:
10.1111/j.1365-3032.2007.00565.x

3. Immunity and reproduction during colony foundation in the dampwood termite, Zootermopsis angusticollis

Author:
CALLERI, DANIEL V. II.; ROSENGAUS, REBECA B.; TRANIELLO, JAMES F.A.
Source:
Physiological entomology 2007 v.32 no.2 pp. 136-142
ISSN:
0307-6962
Subject:
Zootermopsis angusticollis; abdomen; confocal microscopy; copulation; dampwood termites; encapsulation; females; immune response; life history; males; nests; nylon; oocytes; oviposition; pathogens; reproductives
Abstract:
... Termite primary reproductives may be exposed to pathogens when dispersing from their parental nest and establishing a new colony. Immunity and reproduction are investigated during colony foundation by implanting a nylon filament into the abdomen of mated and unmated female and male primary reproductives of the dampwood termite Zootermopsis angusticollis. Primary reproductives are paired in combina ...
DOI:
10.1111/j.1365-3032.2007.00559.x

4. Responses to olfactory and visual cues by over-wintered and summer generations of the pollen beetle, Meligethes aeneus

Author:
JÖNSSON, MARTIN; ROSDAHL, KRISTINA; ANDERSON, PETER
Source:
Physiological entomology 2007 v.32 no.2 pp. 188-193
ISSN:
0307-6962
Subject:
buds; oviposition; Brassicogethes aeneus; flowers; pests; color; Brassica napus; summer; odors; olfactometers; adults
Abstract:
... Behavioural responses to odours of oilseed rape in bud and flower stage and to green and yellow colours are studied for the two main phenological stages of pollen beetles, Meligethes aeneus, a major pest of oilseed rape, Brassica napus. Over-wintered individuals oviposit in buds of oilseed rape. Adults of the new generation (i.e. the summer generation) feed on flowers of different plant species be ...
DOI:
10.1111/j.1365-3032.2007.00562.x

5. Sperm storage and utilization in female Queensland fruit flies (Bactrocera tryoni)

Author:
PEREZ-STAPLES, D.; HARMER, A.M.T.; TAYLOR, P.W.
Source:
Physiological entomology 2007 v.32 no.2 pp. 127-135
ISSN:
0307-6962
Subject:
Anastrepha; Bactrocera tryoni; Ceratitis capitata; eggs; females; fruit flies; males; spermatheca; spermatozoa; storage organs; ventral receptacle; Queensland
Abstract:
... Female animals that use sperm from a single mating to fertilize eggs over an extended period require efficient mechanisms for sperm storage and use. There have been few studies of these mechanisms in tephritid flies. Mating, copula duration, sperm storage and sperm usage patterns are assessed in an Australian tephritid, the Queensland fruit fly (Bactrocera tryoni; a.k.a. 'Q-fly'). In particular, t ...
DOI:
10.1111/j.1365-3032.2006.00554.x

6. Teratocytes growth pattern reflects host suitability in a host-parasitoid assemblage

Author:
FIRLEJ, ANNABELLE; LUCAS, ÉRIC; CODERRE, DANIEL; BOIVIN, GUY
Source:
Physiological entomology 2007 v.32 no.2 pp. 181-187
ISSN:
0307-6962
Subject:
Coleomegilla maculata; Dinocampus; Harmonia axyridis; adults; endoparasitoids; hatching; host preferences; host range; host-parasite relationships; hosts; larvae; larval development; linear models; nutrition; parasitism; regression analysis; secretion; serosa; teratocytes
Abstract:
... In some parasitoid species, the serosa membrane breaks apart at hatching and produces teratocyte cells that assume various functions (immunossupression, secretion and nutrition) mediating host-parasitoid relationships. Teratocyte growth pattern may thus reflect the host suitability for a parasitoid. The teratocyte growth pattern (increase in size and number of teratocytes as a function of time) is ...
DOI:
10.1111/j.1365-3032.2006.00548.x

7. Water deprivation tolerance and humidity response in a larval dragonfly: a possible adaptation for survival in drying ponds

Author:
REBORA, MANUELA; PIERSANTI, SILVANA; SALERNO, GIANANDREA; CONTI, ERIC; GAINO, ELDA
Source:
Physiological entomology 2007 v.32 no.2 pp. 121-126
ISSN:
0307-6962
Subject:
Libellula depressa; air flow; drought tolerance; drying; larvae; olfactometers; ponds; relative humidity; water deprivation; water vapor
Abstract:
... Water deprivation tolerance is investigated in the last larval stadium of Libellula depressa under various conditions of relative humidity (60-100% relative humidity; RH). Most of the larvae maintained at 100% RH emerge and, at lower RH levels show some resistance to dehydration because they die after a mean period ranging from 1.4 days at 60% RH up to 6.7 days at 90% RH. In dual-choice chambers w ...
DOI:
10.1111/j.1365-3032.2006.00553.x

8. The effects of temperature, body mass and feeding on metabolic rate in the tsetse fly Glossina morsitans centralis

Author:
TERBLANCHE, JOHN S.; CHOWN, STEVEN L.
Source:
Physiological entomology 2007 v.32 no.2 pp. 175-180
ISSN:
0307-6962
Subject:
Glossina morsitans centralis; Glossina morsitans morsitans; Glossina pallidipes; carbon dioxide; females; foraging; males; metabolism; models; mortality; population dynamics; risk; temperature
Abstract:
... Metabolic rate variation with temperature, body mass, gender and feeding status is documented for Glossina morsitans centralis. Metabolic rate [mean ± SE; VCO₂= 19.78 ± 3.11 μL CO₂ h⁻¹ in males (mean mass = 22.72 ± 1.41 mg) and 27.34 ± 3.86 μL CO₂ h⁻¹ in females (mean mass = 29.28 ± 1.96 mg) at 24 °C in fasted individuals] is strongly influenced by temperature, body mass and feeding status, but no ...
DOI:
10.1111/j.1365-3032.2006.00549.x

9. The function of multiple mating in oviposition and egg maturation in the seed beetle Callosobruchus maculatus

Author:
TSENG, HSIEN-FEN; YANG, ROU-LING; LIN, CHAN; HORNG, SHWU-BIN
Source:
Physiological entomology 2007 v.32 no.2 pp. 150-156
ISSN:
0307-6962
Subject:
Callosobruchus maculatus; copulation; eggs; fecundity; females; longevity; oocytes; ovarioles; oviducts; oviposition; seed maturation
Abstract:
... To comprehend the significance of multiple mating in female Callosobruchus maculatus, the material-benefits hypothesis is tested, as well as the potential function and mechanism of additional mating for females. The results show that longevity and lifetime fecundity are significantly higher in doubly-mated females, whereas females subject to an interrupted second copulation (which transfers no eja ...
DOI:
10.1111/j.1365-3032.2007.00561.x

10. Adult female crickets, Gryllus texensis, maintain reproductive output after repeated immune challenges

Author:
SHOEMAKER, KELLY L.; ADAMO, SHELLEY A.
Source:
Physiological entomology 2007 v.32 no.2 pp. 113-120
ISSN:
0307-6962
Subject:
Gryllus texensis; Serratia marcescens; adults; egg production; egg weight; eggs; females; hatching; immune response; immune system; lipopolysaccharides; longevity; progeny; protein content; reproductive performance
Abstract:
... Both immunity and reproduction are thought to be energetically costly and therefore likely to make trade-offs with one another. To assess whether increasing immune system activity results in a decline in egg production, the immune system in the cricket Gryllus texensis is activated over a period of 12 days with regular injections of lipopolysaccharide (LPS) derived from Serratia marcescens, and th ...
DOI:
10.1111/j.1365-3032.2006.00552.x

11. Characterization of transepithelial transport of salicylate by the Malpighian tubules of Drosophila melanogaster and the effects of changes in fluid secretion rate

Author:
RUIZ-SANCHEZ, ESAU; O'DONNELL, MICHAEL J.
Source:
Physiological entomology 2007 v.32 no.2 pp. 157-166
ISSN:
0307-6962
Subject:
Drosophila melanogaster; Malpighian tubules; anions; cyclic AMP; cyclic GMP; fluorescein; ouabain; phenol; potassium; radiolabeling; secondary metabolites; secretion; sulfonates
Abstract:
... A radioisotope tracer technique is used to study mechanisms and regulation of transepithelial transport of the plant allelochemical salicylate by the Malpighian tubules of Drosophila melanogaster. Transepithelial transport of salicylate is nearly abolished in Na⁺-free saline, and inhibited by ouabain, low K⁺ or K⁺-free bathing saline. In addition, the carboxylates probenecid, unlabelled salicylate ...
DOI:
10.1111/j.1365-3032.2007.00563.x

12. Dynamic egg maturation strategies in an aphid parasitoid

Author:
WU, ZHISHAN; HEIMPEL, GEORGE E.
Source:
Physiological entomology 2007 v.32 no.2 pp. 143-149
ISSN:
0307-6962
Subject:
Aphelinus; Aphis glycines; eggs; females; hosts; oviposition; parasitoids; variance
Abstract:
... Females of the parasitoid Aphelinus albipodus both lay more eggs on younger stages of their aphid host, Aphis glycines, and contain more mature eggs in their ovaries when held with these younger host stages. This suggests that egg maturation is more rapid in the presence of younger host stages. Three factors explaining the difference in the egg loads of A. albipodus females exposed to various host ...
DOI:
10.1111/j.1365-3032.2007.00560.x

13. Potential effects of tyramine on the transition to reproductive workers in honeybees (Apis mellifera L.)

Author:
SASAKI, KEN; HARANO, KEN-ICH
Source:
Physiological entomology 2007 v.32 no.2 pp. 194-198
ISSN:
0307-6962
Subject:
Apis mellifera; brain; dopamine; oral administration; ovarian development; tyramine; worker honey bees
Abstract:
... To explore the role of brain tyramine in reproductive worker honeybees, its effects after injection and oral treatment on brain dopamine levels and ovarian development in queenless worker honeybees are determined. Both tyramine injection and oral treatment in 10-day-old queenless bees leads to tyramine transportation into the brain and significantly elevates brain dopamine levels as a function of ...
DOI:
10.1111/j.1365-3032.2007.00566.x