Gary S Reuter University of Minnesota wwwbeelabumnedu Your breakfast without bees Scientific American April 2009 V alue of crops in US that depend on pollination gt189 billion ID: 368944
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Slide1
The Impact of ROW Management on Apiary Populations
Gary S. Reuter, University
of
Minnesota
www.beelab.umn.eduSlide2
Your breakfast without bees
Scientific American April 2009
V
alue
of crops in US
that depend on pollination: >$18.9 billion
$217 billion worldwideSlide3
Alfalfa Hay – Bee Pollination – Dairy and BeefSlide4
Your grocery store without beesSlide5
Healthy Bees
Healthy Food
Healthy LivesSlide6
Honey
BeesSlide7
Decline in U.S. honey bee colonies 1945-2007
Since 2007, 30-40% of all honey bee colonies die annually
Beekeepers struggle to replace lossesSlide8Slide9
Wild Bee Pollinators Also in Decline
Bumblebee
Sweat bee
Miner bee
Leafcutter bee
Orchard Mason beeSlide10
Photo:
Matthew Shepherd
Ground-nesting (
~
70%)
Wild Bee Nests
Tunnel-nesting (
~
30%)Slide11
Wild Bees:
Larva
feeds on pollen ball provisioned by mother beeSlide12Slide13
750,000 acres of almonds in Central CA requires 1.5 million colonies of honey bees for pollination
No Bees, No NutsSlide14
72,000 acres of blueberries across U.S. requires 150,000 colonies of honey bees for pollination
No Bees, No BerriesSlide15
Colonies trucked in and out because after bloom there are no flowers and many pesticide applicationsSlide16
Protect
Bees Food
If there are flowers blooming, there will be bees foragingSlide17
What bees eat
Pollen - protein
Nectar – carbsWater
Pollination HappensSlide18
“
Bee
”
Flowers
Major Honey
Plants
Clover
Alfalfa
Basswood
Buckwheat
Wildflowers/ weeds
Mustards
Vetch
Dandelion
Goldenrod
Sumac
Trees - pollen
Maple
Willow
Oak
Gardens/ fruit trees
Vine crops
Berries
Can
ola
AppleSlide19
Bees collect corn pollen but only when hungry (low protein content)
Bees
may collect
nectar from soybeans in MN only when hot and humid Slide20
Bees forage 2.5 miles from colony, on averageSlide21
What can the public do?
Plant flowers!
www.xerces.org
/pollinator-conservation/
Pay attention to
neonicotinoid
systemic insecticide use, especially in urban landscapes!
Plant bee gardens
Encourage roadside plantings of flowers
CRP land: put legumes in
mixSlide22
What can the public do?
Plant flowers!
www.xerces.org
/pollinator-conservation/
Pay attention to
neonicotinoid
systemic insecticide use, especially in urban landscapes!
Plant bee gardens
Encourage roadside plantings of flowers
CRP land: put legumes in
mixSlide23
Ice fishing in MinnesotaSlide24Slide25Slide26
Collecting Pollen and NectarSlide27Slide28Slide29Slide30
Foraging trip of a weakened bee in our modern landscape:Slide31Slide32Slide33Slide34Slide35Slide36Slide37Slide38Slide39Slide40Slide41Slide42Slide43
What can you do to help?
Turn off the sprayer.Slide44
What can you do to help?
Turn off the sprayer.
Learn what the noxious weed look like.Slide45
Questions?
The end
References
Gary S. Reuter reute001@umn.edu
University of Minnesota, 1980 Folwell Ave. Rm 219, St. Paul, MN 55108
www.tc.umn.edu/~reute001
Equipment plansCool Pictures
Beekeeping information
BeeLab.umn.eduHelp build bee lab
Bee Squad information“Healthy Bees” on-line course!
open for registration, $25 for 4 year accessBumble bee rearing manual, for sale!Book on “Alternative Pollinators” to be published
Protecting Pollinators poster
Beekeeping Manual & video
Honey bee Queen Rearing Manual & video
Beekeeping Posters
Mead Making PosterSlide46
1/3 of the food you eat is dependent
on pollination
by honeybees.Slide47
allspice
Macadamia
Crops Pollinated by Honey BeesSlide48
Burdock
Thistle
Sunflower
Canola
Clover
Dandelion
Berries
Milkweed
Butterfly weed
Sumac
Berries
Basswood
Vetch
Vine crops
“Bee”
FlowersSlide49Slide50
Bumblebee Rearing
Maunual available on web siteSlide51
PERSPECTIVE – Two Level Option
www.BeeLab.UMN.EDUSlide52
References
Gary S. Reuter reute001@umn.edu
University of Minnesota, 1980 Folwell Ave. Rm 219, St. Paul, MN 55108
www.tc.umn.edu/~reute001
Equipment plans
Cool PicturesBeekeeping information
Its Back!
BeeLab.umn.eduHelp build bee lab
“Healthy Bees” on-line course!open for registration, $25 for 4 year access
Bumble bee rearing manual, for sale!Book on “Alternative Pollinators” to be publishedProtecting Pollinators poster
Beekeeping Manual & videoHoney bee Queen Rearing Manual & video
Beekeeping Posters
Mead Making PosterSlide53