Calorimetric investigations on social thermogenesis in the hornet Vespa crabro L. (Hymenoptera: Vespinae)

Schmolz, Erik; Lamprecht, I.; Schricker, B.

doi:10.1016/0040-6031(93)80324-4

Cited by 12 publications

(11 citation statements)

References 10 publications

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“…The same has to be assumed for the nest of vespine wasps. Basal metabolism of the ectothermic insects provides a considerable amount of heat for social thermoregulation (Kovac et al, 2007; Petz et al, 2004; Schmolz et al, 1993; Stabentheiner et al, 2010). As in the wasps’ nests temperature varies more than in honeybee nests (e.g.…”

Section: Introductionmentioning

confidence: 99%

Resting metabolism and critical thermal maxima of vespine wasps (Vespula sp.)

Käfer

Kovac

Stabentheiner

2012

Journal of Insect Physiology

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Section: Introductionmentioning

confidence: 99%

Resting metabolism and critical thermal maxima of vespine wasps (Vespula sp.)

Käfer

Kovac

Stabentheiner

2012

Journal of Insect Physiology

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“…We carried out a series of different calorimetric investigations on ants , performed experiments on bumblebees and hornets and focused on multiple questions regarding the honeybee. Experiments on the European honeybee Apis mellifera carnica are described in , on the red‐tailed bumblebee Bombus lapidarius in , and on Vespa crabro , called “the” hornet, in . All of them belong to the group of protected animals in Germany and were therefore kept in colonies at the Institute for Zoology, from where individuals were taken for investigations and replaced afterwards.…”

Section: Resultsmentioning

confidence: 99%

“…A 24‑L twin PMC with a sensitivity of 14.8 mV/W was used to determine the heat production rate of an intact colony of the hornet Vespa crabro . The foragers of the colony had free access to the outdoor environment.…”

Section: Resultsmentioning

confidence: 99%

“…Once a week, the mass of the whole calorimeter was measured to determine the increasing mass of the nest construction and of the biomass (number of hornets). At the end of the season, the empty nest was stepwise reduced in size to the states at specific days, weighed again, and the number of hornets was then calculated for these dates of the season .…”

Section: Resultsmentioning

confidence: 99%

“…A special Calvet‐type calorimeter with an active volume of 25 mL and a sensitivity of 55 μV/mW was small enough to be transported to a cold room and was adjusted to 10, 15 and 20°C for investigations on hornets (MV Meßgerätevertrieb, München, Germany ).…”

Section: Methodsmentioning

confidence: 99%

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Monitoring the heat production of small terrestrial animals by a twin calorimeter

Lamprecht

2013

Engineering in Life Sciences

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Calorimetric investigations of terrestric animals of smaller size were performed in (1) Calvet‐type isoperibol twin instruments of up to 100 mL in content, (2) a “poor man's calorimeter” of up to 24 L in volume, in single and twin setups for colonies of honeybees, stingless bees, bumblebees, and hornets, and (3) a roundabout flight calorimeter for smaller insects. Special questions of metabolism concerning sleep and heat output rates of different castes in honeybees or of increasing numbers of individuals in a group were of interest. The most simple animals in these investigations were soil‐living species like earthworms, woodlice, pill bugs, and carabid beetles; they were investigated for their routine heat production rates and the rates under the influence of the effective uncoupler of oxidative phosphorylation, pentachlorophenol. The highest animals were lacertide lizards and snails, which were monitored for their standard metabolism and for stimulated reactions, to gather information about their scope of metabolism.

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Thermal investigations on social insects

Schmolz

Lamprecht

Hot Topics in Thermal Analysis and Calorimetry

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So cial in sects (honey-and bum ble bees, wasps, hor nets, ants and ter mites) are in ter est ing in many as pects, among them the en er getic ad van tages of so cial life and con quer ing of un fa vour able ter ri to ries. Own in ves ti ga tions and data from lit er a ture deal with the en ergy me tab o lism of these in sects (ex cept ter mites because of ex per i men tal dif fi cul ties), with lo co mo tor ac tiv i ties, en ergy bal ances of for ag ing, en ergy sav ing by in su la tion of wasp nests com pared with the af ford to con struct the wooden en ve lope, bee clus ter strat egy for sur viv ing at low temper a tures, and rear ing of brood.The en ergy and heat flow data were ob tained by in di rect and isoperibol di rect cal o rim e try, bomb cal o rim e try, ex per i ments with a cus tomer con structed car ou sel flight cal o rim e ter, ther mom e try, and false col our thermography.

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Calorimetric investigations on social thermogenesis in the hornet Vespa crabro L. (Hymenoptera: Vespinae)

Cited by 12 publications

References 10 publications

Resting metabolism and critical thermal maxima of vespine wasps (Vespula sp.)

Resting metabolism and critical thermal maxima of vespine wasps (Vespula sp.)

Monitoring the heat production of small terrestrial animals by a twin calorimeter

Thermal investigations on social insects

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