bartomeus scape-2012

When is pollination the limiting ecosystem service for crops?

Ignasi [email protected]#SCAPE2012 @ibartomeus

(Tilman et al. 2011)

Bommarco et al. 2012

Landscape Pollinators Yield

(Garibaldi 2011)


z-sc

ores

of V

isita

tion

(Garibaldi 2011)


z-sc

ores

of f

ruit

set

z-sc

ores

of V

isita

tion

(Garibaldi 2011)


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


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

bartomeus scape-2012

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