Christoph Otten

ORCID: 0000-0001-5324-2255
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About
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Research Areas
  • Insect and Pesticide Research
  • Plant and animal studies
  • Insect and Arachnid Ecology and Behavior
  • Plant Virus Research Studies
  • Bee Products Chemical Analysis
  • Yersinia bacterium, plague, ectoparasites research
  • Insect Resistance and Genetics
  • Insect Utilization and Effects
  • European history and politics
  • Forensic Entomology and Diptera Studies
  • Microbial infections and disease research
  • Species Distribution and Climate Change
  • Maritime Transport Emissions and Efficiency
  • Plant Pathogens and Resistance
  • German Literature and Culture Studies
  • biodegradable polymer synthesis and properties
  • Ship Hydrodynamics and Maneuverability
  • Lignin and Wood Chemistry
  • Environmental Chemistry and Analysis
  • Animal Behavior and Welfare Studies
  • Animal and Plant Science Education
  • Rangeland and Wildlife Management
  • Zoonotic diseases and public health
  • Identification and Quantification in Food

Dienstleistungszentrum Ländlicher Raum Westerwald-Osteifel
2012-2023

Dienstleistungszentrum Ländlicher Raum
2012-2023

SummaryIn 2008 the COLOSS network was formed by honey bee experts from Europe and USA. The primary objectives set this scientific were to explain prevent large scale losses of (Apis mellifera) colonies. In June obtained four years support European Union COST designated as Action FA0803—COLOSS (Prevention Colony Losses). To enable comparison loss data between participating countries, a standardized questionnaire developed. Using information on has been collected over two years. Survey...

10.3896/ibra.1.51.1.12 article EN Journal of Apicultural Research 2012-01-01

SummaryThis article presents results of an analysis winter losses honey bee colonies from 19 mainly European countries, most which implemented the standardised 2013 COLOSS questionnaire. Generalised linear mixed effects models (GLMMs) were used to investigate several factors on risk colony loss, including different treatments for Varroa destructor, allowing random beekeeper and region. Both summer considered, common combinations treatment timing define factor levels. Overall within country...

10.3896/ibra.1.53.1.02 article EN Journal of Apicultural Research 2014-01-01

In this short note we present comparable loss rates of honey bee colonies during winter 2015/16 from 29 countries, obtained with the COLOSS questionnaire. Altogether, received valid answers 19,952 beekeepers. These beekeepers collectively wintered 421,238 colonies, and reported 18,587 unsolvable queen problems 32,048 dead after winter. This gives an overall rate 12.0% (95% confidence interval 11.8–12.2%) 2015/16, marked differences among countries. Beekeepers in study assessed 7.6% CI...

10.1080/00218839.2016.1260240 article EN cc-by Journal of Apicultural Research 2016-12-02

Winter loss rates of honey bee colonies may fluctuate highly between years in temperate climates. The present study combined survey data autumn and winter Germany (2012-2021) with estimates flow-assessed automated hive scales as the start flow spring its magnitude summer-with aim understanding annual fluctuations rates. Autumn colony were positively significantly correlated rates, whereas inversely related to following year. An early net predicted high both winter, cumulative led lower was...

10.3390/insects13090829 article EN cc-by Insects 2022-09-12

American Foulbrood (AFB) of honey bees caused by the spore-forming bacterium Paenibacillus larvae is a notifiable epizootic in most countries. Authorities often consider rigorous eradication policy only sustainable control measure. However, early diagnosis infected but not yet diseased colonies opens up possibility ridding these P. spores shook swarm method, thus preventing colony destruction AFB or official orders. Therefore, surveillance bee for infection followed appropriate sanitary...

10.3390/vetsci10020103 article EN cc-by Veterinary Sciences 2023-02-01

Abstract The BEEHAVE model simulates the population dynamics and foraging activity of a single honey bee colony ( Apis mellifera ) in great detail. Although it still makes numerous simplifying assumptions, appears to capture wide range empirical observations. It could, therefore, principle, also be used as tool beekeeper education, allows implementation comparison different management options. Here, we focus on treatments aimed at controlling mite Varroa destructor . However, since was...

10.1002/ece3.9456 article EN Ecology and Evolution 2022-11-01
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