Die Erfahrung des Unsichtbaren

Ethnologie und Dokumentarfilm sind im Kern mit der Vermittlung von Erfahrung befasst. Zugleich werden in ihrem Kontext die RezipientInnen dokumentarischer Repräsentationen meist als unbekannte Größe verhandelt, ihr filmisches Erleben als schwer zugänglich. In ihrer Studie analysiert die Autorin die Rezeptionsästhetiken zeitgenössischer Dokumentarfilme und deren Vermittlung von Unsichtbarem und Abwesendem. Dabei wird die wissenschaftshistorisch gewachsene Dialektik von Sehen und Wissen in der ethnologischen Theoriengeschichte und Audiovisuellen Anthropologie herausgearbeitet und herausgefordert, um die Aufmerksamkeit zu verlagern: Vom Sicht- und Sagbaren zu den multisensorischen Dimensionen von Erfahrung, zur Beschäftigung mit Sinnen, Emotionen und nicht-menschlichen AkteurInnen. Der Fokus der Ethnografie liegt einerseits auf filmischen Strategien wie dem Arbeiten mit Archivmaterial und Partizipation, narrativen Lücken und multisensorischer Evokation. Andererseits werden die Kontexte und Dynamiken von Rezeptionssituationen und damit die AkteurInnen, Atmosphären und Resonanzen des dokumentarischen Feldes erfahrbar

Reduced parasite burden in feral honeybee colonies

Abstract Bee parasites are the main threat to apiculture and since many parasite taxa can spill over from honeybees (Apis mellifera) to other bee species, honeybee disease management is important for pollinator conservation in general. It is unknown whether honeybees that escaped from apiaries (i.e. feral colonies) benefit from natural parasite‐reducing mechanisms like swarming or suffer from high parasite pressure due to the lack of medical treatment. In the latter case, they could function as parasite reservoirs and pose a risk to the health of managed honeybees (spillback) and wild bees (spillover). We compared the occurrence of 18 microparasites among managed (N = 74) and feral (N = 64) honeybee colony samples from four regions in Germany using qPCR. We distinguished five colony types representing differences in colony age and management histories, two variables potentially modulating parasite prevalence. Besides strong regional variation in parasite communities, parasite burden was consistently lower in feral than in managed colonies. The overall number of detected parasite taxa per colony was 15% lower and Trypanosomatidae, chronic bee paralysis virus, and deformed wing viruses A and B were less prevalent and abundant in feral colonies than in managed colonies. Parasite burden was lowest in newly founded feral colonies, intermediate in overwintered feral colonies and managed nucleus colonies, and highest in overwintered managed colonies and hived swarms. Our study confirms the hypothesis that the natural mode of colony reproduction and dispersal by swarming temporally reduces parasite pressure in honeybees. We conclude that feral colonies are unlikely to contribute significantly to the spread of bee diseases. There is no conflict between the conservation of wild‐living honeybees and the management of diseases in apiculture

A Protocol for Monitoring Populations of Free-Living Western Honey Bees in Temperate Regions

Despite their ecological significance, wild Apis mellifera populations remain critically understudied. Addressing this research gap requires the study and monitoring of free-living colonies to identify potential self-sustaining populations. However, a lack of standardized methodologies has hindered these efforts. To address this challenge, Honey Bee Watch, an international coalition dedicated to studying free-living honey bees, has developed a comprehensive monitoring protocol. This protocol offers a consistent methodology for researchers and citizen scientists to collect vital data on colony survival, activity, and environmental conditions. It emphasizes monitoring at five key phenological stages throughout the year to ensure the collection of scientifically robust data. Additionally, an illustrated guideline is provided to help users accurately identify and track colonies, enhancing data accuracy. The adoption of this protocol by both the scientific community and citizen scientists will not only strengthen research efforts and foster public engagement, but also help close existing knowledge gaps regarding the distribution and density of wild A. mellifera populations, ultimately guiding more effective conservation strategies.M5115101

A Protocol for Monitoring Populations of Free-Living Western Honey Bees in Temperate Regions

International audienceDespite their ecological significance, wild Apis mellifera populations remain critically understudied. Addressing this research gap requires the study and monitoring of free-living colonies to identify potential self-sustaining populations. However, a lack of standardized methodologies has hindered these efforts. To address this challenge, Honey Bee Watch, an international coalition dedicated to studying free-living honey bees, has developed a comprehensive monitoring protocol. This protocol offers a consistent methodology for researchers and citizen scientists to collect vital data on colony survival, activity, and environmental conditions. It emphasizes monitoring at five key phenological stages throughout the year to ensure the collection of scientifically robust data. Additionally, an illustrated guideline is provided to help users accurately identify and track colonies, enhancing data accuracy. The adoption of this protocol by both the scientific community and citizen scientists will not only strengthen research efforts and foster public engagement, but also help close existing knowledge gaps regarding the distribution and density of wild A. mellifera populations, ultimately guiding more effective conservation strategies.</div