1. When is pollination the limiting
ecosystem service for crops?
Ignasi Bartomeus
nacho.bartomeus@gmail.com
#SCAPE2012 @ibartomeus

2. (Tilman et al. 2011)

3. Bommarco et al. 2012

4. Bommarco et al. 2012

5. Bommarco et al. 2012

7. Landscape Pollinators Yield

8. Landscape Pollinators Yield
z-scores of Visitation
(Garibaldi 2011)

9. z-scores of Visitation
Landscape
z-scores of fruit set
Pollinators
Yield
(Garibaldi 2011)

10. Landscape Pollinators Yield
z-scores of Visitation
z-scores of fruit set
-Effect size
-Proper control (Rickets 2008)
(Garibaldi 2011)

11. 4 of the main crops in EU
*Field Bean
*Oils seed rape
*Strawberry Field
*Buckwheat
Wind
pollinated
Transects
Open
pollinated

12. Same variety
Same methods
Same geographical variation
Realistic yield measure (weight)

13. Honeybees Bumblebees Wild bees Hoverflies
2%
6% 11%
35% 6%
57%
83%
Field Bean Oils seed rape
2%
1% 7%
11%6% 2%
81% 90%
Strawberry Buckwheat

14. *Field Bean
*Oils seed rape
*Strawberry
*Buckwheat
Also Honeybees!

15. Mean % gain with pollinators
BuckWheat
Field Bean
Strawberry
Oil Seed Rape
0 20 40 60 80

16. Landscape Pollinators Yield

17. Landscape Pollinators Yield
effect ? shape of the limitation?

18. GLMM with block nested in field as random factors
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 ***
also for Bumble bee visits only

19. 100%
Yield
0%
Visits

20. Field Bean Oils seed rape

21. Strawberry Buckwheat

22. 100%
Yield
*Soil quality (water, nutrients, AFM)
0% *Stress (Herbivory)
Visits

24. 100%
No stress
Yield
Stress
0%
Pollinator Visits

25. Thanks to Riccardo Bommarco, Simon Potts, Ingolf
Steffan-Dewenter & Michal Woyciechowski
Funding:
SAPES
Thank you!
- nacho.bartomeus@gmail.com
@ibartomeus

26. 80 Wind
pollinated
Open
pollinated
Fruit weight
40
0
Field Bean