Corpus ID: 51808531

Thermographic Determination of Body Temperatures in Honey Bees and Hornets: Calibration and Applications

  title={Thermographic Determination of Body Temperatures in Honey Bees and Hornets: Calibration and Applications},
  author={A. Stabentheiner and Sigurd Schmaranzer},
!This study presents calibrations allowing absolute thermographic temperature measurements in honey bees and hornets. The band emissivity ( 3.5-5.6 µm) of a heated ~ honey bee thorax (mesosoma) is limited to a range of 0.955-0.990. The development of thoracic heat production was investigated in young honey bees (Apis mellifera carnica). Five-hour-old bees did not actively produce heat in their thoraces, whereas l- and 2-day-old bees did. We made continuous thermograpbic temperature recordings… Expand
Respiration of resting honeybees.
A novel mathematical model allows description of the relationship of resting (standard) metabolic rate and temperature across the entire functional temperature range of bees and indicates a higher efficiency of ventilation at high ambient temperatures. Expand
Thermoregulation of honeybees (Apis mellifera) foraging in spring and summer at different plants
It was remarkable that in spring at an ambient temperature from 12–20 °C on average the thorax was warmer by 6.4 °C and the head by 4.1°C than in summer (ambient temperature: 20–26 °C), and the temperatures of all three parts of the body always exceeded ambient temperature. Expand
Thermal Behaviour of Honeybees During Aggressive Interactions.
Guard bees, foragers, drones, and queens involved in aggressive interactions were always endothermic, i.e. had their flight muscles activated, and the hypothesis that heating of examinees facilitates odour identification by guards is supported. Expand
Mechanisms of thermal stability during flight in the honeybee apis mellifera
  • Roberts, Harrison
  • Chemistry, Medicine
  • The Journal of experimental biology
  • 1999
Variation in metabolic heat production is the dominant mechanism of maintaining thermal stability during flight between Ta values of 21 and 33 degrees C, but variations in metabolicHeat production and evaporative heat loss are equally important to the prevention of overheating during flight at Ta values between 33 and 45 degrees C. Expand
Thermoregulation of water collecting honey bees (Apis mellifera).
  • Schmaranzer
  • Biology, Medicine
  • Journal of insect physiology
  • 2000
Honey bees (Apis mellifera carnica, Apidae, Hymenoptera) visited a pond in order to collect water. During their stays at the pond the body surface temperature of water foragers was measured usingExpand
The energetics and thermoregulation of water collecting honeybees
The hypothesis that the bees’ motivational status determines the energetic performance during foraging is strongly supported, and the energy demand of water collecting bees under natural conditions is investigated. Expand
Hot bumble bees at good food: thoracic temperature of feeding Bombus wilmattae foragers is tuned to sugar concentration
It is suggested that this modulation of pitching Tth to sucrose concentration is a general phenomenon in all social bees and may be a widespread adaptation facilitating rapid food collection in flying Hymenoptera. Expand
Thermal behavior of round and wagtail dancing honeybees
Evidence is furnished that dancing honeybees follow a strategy of “selective heterothermy” by tuning their thermal behavior to the needs of the behavior performed at the moment, andThoracic temperature is regulated to a high level and more accurately when fast exploitation of profitable food sources is recommended. Expand
Oxygen consumption and body temperature of active and resting honeybees.
Thermographic measurements of body temperature showed that with increasing activity, the bees invested more energy to regulate the thorax temperature at increasingly higher levels (38.8-41.2 degrees C in highly active bees) and were more accurate. Expand
Hot bees in empty broodnest cells: heating from within
It is found that the heating bees can be distinguished from the resting bees not only by their higher body temperatures but also by the continuous, rapid respiratory movements of their abdomens. Expand


Temperature regulation of honey bees (Apis mellifera) foraging in the Sonoran desert
Observations of honey bees returning to their hives at high ambient temperatures support the conjecture that honey bees regulate head and thorax temperatures at high Ta by regurgitating droplets of honey stomach contents which are then evaporated. Expand
Thermoregulation of African and European Honeybees during Foraging, Attack, and Hive Exits and Returns
The data suggest that the bees regulate thoracic temperature by both behavioural and physiological means, and it can be inferred that the African bees have a higher metabolic rate than the European, but their smaller size, which facilitates more rapid heat loss, results in similarThoracic temperatures. Expand
Effect of solar radiation on temperatures of working honey bees.
THE body temperature of insects is closely related to their activity and is therefore of considerable importance physiologically and economically. It is difficult, however, to measure insectExpand
Mechanical and electrical activity in the indirect flight muscles of the honey bee
Summary1.Recordings were made from single elements in the indirect flight muscles of the honey bee with the usual insulated metal electrodes uninsulated at the tip. With the “indifferent” electrodeExpand
Emissivity of Human Skin in vivo between 2.0µ and 5.4µ measured at Normal Incidence
THE discovery1 that the temperature of skin overlying malignant tumours is frequently raised has led to an increasing medical interest in thermal patterns over the surface of the body. Attempts2,3Expand
Spectral emissivity of skin and pericardium.
  • J. Steketee
  • Physics, Medicine
  • Physics in medicine and biology
  • 1973
A monochromator was modified to measure the emissivity of living tissue in the infrared region between 1 and 14 μm and it appeared that e(λ) for skin is independent of the wavelength and equal to 0.98+-0.01. Expand
V. vhersichtliche Darstellung des Warniehaushaltes von sozialen Hymenopteren zusarnmenfassung . Expand
Emissivity of Human Skin in the Waveband between 2µ and 6µ
THE emissivity of human skin ε(λ) in the range 2µ to 6µ has recently assumed considerable importance because of the increasing medical use of infrared scanners to measure skin temperature (t).Expand
Untersuchungen über den Temperatursinn der Honigbiene (Apis mellifica) unter besonderer Berücksichtigung der Wahrnehmung strahlender Wärme
  • H. Heran
  • Art
  • Zeitschrift für vergleichende Physiologie
  • 2004
ZusammenfassungEine Anordnung wird beschrieben, durch die Bienen auf warme Räume dressiert werden können; es ist für den Erfolg gleichgültig ob die Dressurtemperatur über oder unter derExpand
A water surface as thermal reference object for thermography.
The work reported indicates that a continuously stirred water bath forms an adequate reference target for the calibration of thermographs. Targets of various sizes can be produced easily and areExpand