When is pollination the limiting ecosystem service for crops?
Ignasi [email protected]#SCAPE2012 @ibartomeus
(Tilman et al. 2011)
Bommarco et al. 2012
Bommarco et al. 2012
Bommarco et al. 2012
Landscape Pollinators Yield
(Garibaldi 2011)
Landscape Pollinators Yield
z-sc
ores
of V
isita
tion
(Garibaldi 2011)
Landscape Pollinators Yield
z-sc
ores
of f
ruit
set
z-sc
ores
of V
isita
tion
(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)
Open pollinated
Wind pollinated
Tran
sect
s
4 of the main crops in EU
*Field Bean*Oils seed rape*Strawberry*Buckwheat
Field
Same varietySame methodsSame geographical variationRealistic yield measure (weight)
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
Also Honeybees!
*Field Bean*Oils seed rape*Strawberry*Buckwheat
BuckWheat
Field Bean
Strawberry
Oil Seed Rape
0 20 40 60 80
Mean % gain with pollinators
Landscape Pollinators Yield
Landscape Pollinators Yield
effect ? shape of the limitation?
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
Yield
Visits
100%
0%
Field Bean Oils seed rape
BuckwheatStrawberry
Yield
Visits
100%
0%
*Soil quality (water, nutrients, AFM)*Stress (Herbivory)
Yield
Pollinator Visits
100%
0%
Stress
No stress
Thank you!
- [email protected]@ibartomeus
Thanks to Riccardo Bommarco, Simon Potts, Ingolf Steffan-Dewenter & Michal Woyciechowski
SAPES
Funding:
Fruit
weig
ht
0
80
40
Open pollinated
Wind pollinated
Field Bean