Uncovering the drivers of honey bee colony declines and losses

Scientists have announced the results of research conducted on honey bee colony declines and the factors attributed to honey bee losses.

Scientists have announced the results of research conducted on honey bee colony declines and the factors attributed to honey bee losses. In a paper published this week in the journal EcoHealth, scientists at EcoHealth Alliance investigated the causes of long-term declines of colony numbers and annual colony losses. The work shows that socioeconomic and political pressures on honey production over the past few decades has caused a long-term reduction in the number of colonies in production in the USA, Europe and many other countries. However, more recently honey bee managers have reported increased losses in their stocks each year (so-called ‘annual colony losses’), and the new research shows that pests, pathogens and management issues likely play a major role in this, and are under researched and poorly understood drivers.

Honey bees provide ecosystem services through pollination of crops worth $215 billion annually worldwide. Concern over honey bee declines in recent decades as well as annual losses has sparked debate over their causes and has led to hypotheses that a specific novel syndrome ‘Colony Collapse Disorder’ (CCD) is plaguing bee populations. Many scientists have proposed new drivers such as pollution from pesticides as the cause of these declines. EcoHealth Alliance conducted an in-depth, critical review of the science behind these declines and losses and have shown that:

1. The long-term multi-decadal downward trend in the number of bee colonies in many countries reflects a reduction in the profitability of bee keeping due to economic and/or political change, with many bee keepers leaving the profession;

2. Data on annual losses is sparse and collected in a non-uniform way that makes comparing the extent and potential cause of losses to those in previous years difficult

Read the full story here.

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About jensera

Jennifer Harrington is a Toronto-based illustrator, writer and graphic designer. She illustrated the best-selling children’s book series 'A Moose in a Maple Tree,' which includes the titles 'A Moose in a Maple Tree,' 'The Night Before a Canadian Christmas' and 'Canadian Jingle Bells.' She is also the owner of JSH Graphics, a boutique graphic design agency that specializes in print and web advertising. With her latest project, Eco Books 4 Kids, Jennifer has partnered with illustrator Michael Arnott to create a series of ecologically-themed ebooks for children. Her next book, 'Spirit Bear,' is due for release in the Summer of 2013. Jennifer offers two different school presentations for her 'Moose in a Maple Tree' collection, an illustration demonstration and a Christmas concert series, which can be booked at www.amooseinamapletree.com. She will be taking bookings for school readings of 'Spirit Bear' beginning in October 2013.

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