TY  - THES
A1  - Schneider, Christof
T1  - Detecting the influence of different potential stress factors on the behavior of the honeybee Apis mellifera using Radiofrequency Identification (RFID)
T1  - Erfassung des Einflusses von unterschiedlichen Stressfaktoren auf das Verhalten der Honigbiene Apis mellifera mittels Radiofrequenz Identifikation (RFID)
N2  - This study was conducted to determine the influence of different stress factors on the honeybee Apis mellifera. The investigation was motivated by previous experiments that suggested the existence of an unspecific defense mechanism causing a generalized change of flight behavior after the onset of different diseases. This mechanism is thought to impede the ability of flight bees to return to their respective colonies thereby removing the disease from the colony over time. During the last years, the existence of such a “suicidal behavior” was supported by further studies. Thus, an unnoticed, potentially highly effective defense mechanism of social insects was revealed whose spectrum of activity and physiological basics require further investigation. Suggesting that the reaction by the bees is unspecific to different diseases as well as to other potential stress factors, this study was designed to investigate the influence of pathogens, insecticides, and different brood rearing temperatures on different parameters like lifespan, foraging activity, and foraging trip duration of worker bees.
N2  - Im Rahmen dieser Studie wurden Untersuchungen bezüglich der Auswirkungen von unterschiedlichen Belastungsfaktoren auf die Honigbiene Apis mellifera durchgeführt. Hintergrund waren Vermutungen, die nahe legten, dass Bienen auf Parasiten und Pathogene durch eine generalisierte Verhaltensänderung reagieren, die die Rückkehr der Bienen in das Volk behindert und damit Krankheit nach und nach aus dem Volk entfernt. Die Existenz eines solchen „suizidalen Verhaltens“ wurde zwischenzeitlich durch weitere Untersuchungen unterstützt. Hiermit wurde ein bislang unbeachteter und potentiell hochwirksamer Abwehrmechanismus sozialer Insekten gegen Pathogene und Parasiten aufgedeckt, dessen Wirkspektrum und physiologische Grundlagen noch erheblichen Aufklärungsbedarf haben. Es lag nun nahe, eine allgemeine und unspezifische Reaktion auf Stressfaktoren zu vermuten. In dieser Studie sollte daher der Einfluss von Pathogenen, Insektiziden sowie unterschiedlichen Brutaufzuchtbedingungen auf die Aktivität, das Flugverhalten und das Sammelverhalten messbar gemacht und untersucht werden.
KW  - Biene
KW  - Bienenkrankheit
KW  - Stress
KW  - Verhalten
KW  - Carnica-Biene
KW  - Nosema
KW  - Nosema apis
KW  - Imidacloprid
KW  - Bienenbrut
KW  - honey bee
KW  - imidacloprid
KW  - clothianidin
KW  - coumaphos
KW  - Nosema
KW  - brood development
KW  - behavioral change
KW  - RFID
KW  - radiofrequency identification
Y1  - 2011
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-71344
ER  - 
TY  - JOUR
A1  - Kablau, Arne
A1  - Berg, Stefan
A1  - Rutschmann, Benjamin
A1  - Scheiner, Ricarda
T1  - Short-term hyperthermia at larval age reduces sucrose responsiveness of adult honeybees and can increase life span
JF  - Apidologie
N2  - Honeybees are very sensitive to their breeding temperature. Even slightly lower temperatures during larval development can significantly affect adult behavior. Several devices which are employed for killing the honeybee ectoparasite Varroa destructor rely on short-term hyperthermia in the honeybee hive. The device used here applies 43.7 °C for 2 h, which is highly effective in killing the mites. We study how short-term hyperthermia affects worker brood and behavior of emerging adult bees. Sucrose responsiveness was strongly reduced after treatment of larvae early or late of larval development. Hyperthermia significantly enhanced life span, particularly in bees receiving treated early in larval development. To ask whether increased life span correlated with foraging performance, we used radio frequency identification (RFID). Onset and offset of foraging behavior as well as foraging trip duration and lifetime foraging effort were unaffected by hyperthermia treatment as prepupa.
KW  - temperature
KW  - Varroa destructor
KW  - worker behavior
KW  - Apis mellifera
KW  - RFID
KW  - température
KW  - Varroa destructor
KW  - comportement des travailleurs
KW  - Apis mellifera
KW  - RFID
KW  - Temperatur
KW  - Varroa destructor
KW  - Bienenverhalten
KW  - Apis mellifera
KW  - RFID
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-232462
SN  - 0044-8435
VL  - 51
ER  -