Search Results - "KIRCHNER, W. H"

Influence of test tasks with different cognitive demands on salivary cortisol concentrations in school students by Minkley, Nina, Kirchner, Wolfgang H

“…This study aimed to investigate the effects of test tasks with different cognitive demands on salivary cortisol concentrations in school students. The salivary…”
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Academic self-concept of ability and cortisol reactivity by Minkley, N., Westerholt, D.M., Kirchner, W.H.

“…The present study aimed to clarify the relationship between a school-specific trait (academic self-concept of ability [ASCA]) and hormonal stress response by…”
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Nest specificity of the bacterial community in termite guts (Hodotermes mossambicus) by MINKLEY, N, FUJITA, A, BRUNE, A, KIRCHNER, W. H

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The effect of food profitability on foraging behaviors and vibrational signals in the African stingless bee Plebeina hildebrandti by Krausa, K., Hager, F. A., Kirchner, W. H.

“…The study of stingless bee foraging strategies and communication about food sources focused mainly on neotropical species. African stingless bees have received…”
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Nestmate discrimination in the harvester termite Hodotermes mossambicus by Kirchner, W. H, Minkley, N

“…Nestmate discrimination was studied in the African harvester termite Hodotermes mossambicus in trophallactic feeding experiments. The results show that…”
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Vibrational signals of African stingless bees by Krausa, K., Hager, F. A., Kiatoko, N., Kirchner, W. H.

“…Many bee species produce thoracic vibrations in various contexts. Among the social stingless bees (Meliponini) pulsed thoracic vibrations are used to…”
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Olfactory associative learning in two African stingless bee species (Meliponula ferruginea and M. bocandei, Meliponini) by Henske, J, Krausa, K, Hager, F. A, Nkoba, K, Kirchner, W. H

“…Worldwide only a few of the more than 500 stingless bee species has been studied in any detail. Most studies on stingless bees have been conducted in the…”
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Hissing in bumblebees: an interspecific defence signal by Kirchner, W. H, Röschard, J

“…Bumblebees (Bombus terrestris) react to disturbances within the nest by a conspicuous hissing sound. The sound is characterised by a high intensity in the…”
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Vibrational alarm communication in the african fungus-growing termite genus Macrotermes (Isoptera, Termitidae) by RÖHRIG, A, KIRCHNER, W. H, LEUTHOLD, R. H

“…A sophisticated system of vibrational long distance alarm communication was found in the African fungus growing termites Macrotermes bellicosus and M…”
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Range perception through apparent image speed in freely flying honeybees by Srinivasan, M V, Lehrer, M, Kirchner, W H, Zhang, S W

“…When negotiating a narrow gap, honeybees tend to fly through the middle of the gap, balancing the distances to the boundary on either side. To investigate the…”
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Signals and Signal Choices made by the Araneophagic Jumping Spider Portia fimbriata while Hunting the Orb-Weaving Web spiders Zygiella x-notata and Zosis geniculatus by Tarsitano, Michael, Jackson, Robert R., Kirchner, Wolfgang H.

“…Portia fimbriata is a web‐invading araneophagic jumping spider (Salticidae). The use of signal‐generating behaviours is characteristic of how P. fimbriata…”
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Vibrational Signals in the Tremble Dance of the Honeybee, Apis mellifera by Kirchner, Wolfgang H.

“…The tremble dance is a behavior sometimes performed by honeybee foragers returning to the hive. The biological significance of this behavior was unclear until…”
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How honeybees perceive communication dances, studied by means of a mechanical model by Michelsen, A, Andersen, B.B, Storm, J, Kirchner, W.H, Lindauer, M

“…A mechanical model of a dancing honeybee was used to investigate the role of various components of the wagging dance in the transfer of information to follower…”
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Hearing in honeybees: the mechanical response of the bee's antenna to near field sound by Kirchner, W.H

“…In the dance language, honeybees use airborne near field sound signals to inform their nestmates of the location of food sources. In behavioral experiments it…”
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Hearing in the honeybees: localization of the auditory sense organ by Dreller, C, Kirchner, W.H

“…Airborne sound signals emitted by dancing honeybees (Apis mellifera) contain information about the locations of food sources. Honeybees can perceive these near…”
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The significance of odor cues and dance language information for the food search behavior of honeybees (Hymenoptera: Apidae) by Kirchner, W.H, Grasser, A

“…Although several independent lines of evidence show that bees can make use of information provided by their dance language, there is an ongoing controversy…”
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causes of the tremble dance of the honeybee, Apis mellifera by Kirchner, W.H, Lindauer, M

“…Tremble dances are sometimes performed by returning forager bees instead of waggle dances. Recent studies by Seeley (1992) and Kirchner (1993) have revealed…”
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Discrimination of nestmate workers and drones in honeybees by KIRCHNER, W. H, GADAGKAR, R

“…Discrimination of nestmates from non-nestmates has mainly been investigated in female social insects. Little is known about discrimination of males. Here we…”
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Hearing in the Asian honeybees Apis dorsata and Apis florea by DRELLER, C, KIRCHNER, W. H

“…In the dance language of the western honeybee, Apis mellifera, airborne near field sound signals and a sense of hearing are used to communicate the locations…”
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Sound and vibrational signals in the dance language of the honeybee, Apis mellifera by Michelsen, A, Kirchner, W.H, Lindauer, M

“…Sound and vibrational signals exchanged by honeybees during the performance of wagging dances were simultaneously recorded by means of a microphone and a laser…”
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