Bartomeus SCAPE-2012
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Transcript of Bartomeus SCAPE-2012
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When is pollination the limiting ecosystem service for crops?
Ignasi [email protected]#SCAPE2012 @ibartomeus
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(Tilman et al. 2011)
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Bommarco et al. 2012
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Bommarco et al. 2012
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Bommarco et al. 2012
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Landscape Pollinators Yield
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(Garibaldi 2011)
Landscape Pollinators Yield
z-sc
ores
of V
isita
tion
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(Garibaldi 2011)
Landscape Pollinators Yield
z-sc
ores
of f
ruit
set
z-sc
ores
of V
isita
tion
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(Garibaldi 2011)
Landscape Pollinators Yield
z-sc
ores
of f
ruit
set
z-sc
ores
of V
isita
tion
-Effect size-Proper control (Rickets 2008)
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Open pollinated
Wind pollinated
Tran
sect
s
4 of the main crops in EU
*Field Bean*Oils seed rape*Strawberry*Buckwheat
Field
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Same varietySame methodsSame geographical variationRealistic yield measure (weight)
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2%6%
57%
35%
Honeybees Bumblebees Wild bees Hoverflies
11%6%
83%
Oils seed rapeField Bean
2%6%11%
81%
7%2%
1%
90%
BuckwheatStrawberry
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Also Honeybees!
*Field Bean*Oils seed rape*Strawberry*Buckwheat
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BuckWheat
Field Bean
Strawberry
Oil Seed Rape
0 20 40 60 80
Mean % gain with pollinators
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Landscape Pollinators Yield
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Landscape Pollinators Yield
effect ? shape of the limitation?
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Field Bean Oil Seed rape Strawberry Buckwheat
Treatment *** *** *** ***
T*land use ns ns ns ns
T*richness ns ns ns ***
T*Visits ns ns ns ***
GLMM with block nested in field as random factors
also for Bumble bee visits only
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Yield
Visits
100%
0%
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Field Bean Oils seed rape
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BuckwheatStrawberry
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Yield
Visits
100%
0%
*Soil quality (water, nutrients, AFM)*Stress (Herbivory)
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Yield
Pollinator Visits
100%
0%
Stress
No stress
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Thank you!
- [email protected]@ibartomeus
Thanks to Riccardo Bommarco, Simon Potts, Ingolf Steffan-Dewenter & Michal Woyciechowski
SAPES
Funding:
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Fruit
weig
ht
0
80
40
Open pollinated
Wind pollinated
Field Bean