Download Flower strips ‐a measure to enhance biodiversity?

Flower strips
‐ameasure to enhance biodiversity?
Flower strips
• Subsidized inmany European
countries (notinSweden)
• Only pollinator abundance in thestripshas
been investigated
• MajRundlöf iscurrently looking
atpopulationeffects inthe
surrounding landscape
Why important?
• Important to biodiversity?
‐>subsidize!
• Competition with wild plants?
‐>choose native species!
• Nogood effect?
‐>use themoney forother
purposes!
What happens with wild plant
pollination?
• Promote pollinators
‐>increased pollination?
• Promote pollinator but attract allpollinators
‐>reduced pollination?
• Donotpromote pollinators,
but attract them
‐>reduced pollination
What happens with wild plant
pollination?
”Treated”landscape,
with flower strip
100m
Controllandscape,
noflower strip
100m
Field work
• Time depends onthespecies;springand/or
summer(but before 31Aug2013,when
flower stripsare removed,orafter if Veronica
spicata isused…)
• Watering &harvesting
• Forstrawberries:assessing
pollination
Important to use plantswith
differenttraits!
Effects may depend on
• flowering time
• shape of corolla (determines
thepollinator)
• ability to self‐fertilize
Periodsof work
Species
Trifolium
pratense
April
‐
Fragaria
vesca
May
June
July
August
Autumn
Count
seeds
‐
Put out
pots
Watering
Bring back
pots and
harvest
inflorascenses
Put out
pots
Watering
and
assessing
pollination
Watering
and
assessing
pollination
Bring back
pots
Primula
veris
Put out
pots
Watering
Bring back
pots
Harvest
capsulas
Veronica
spicata?
‐
‐
‐
‐
‐
Everything…
?
?
?
?
?
?
Mabye not
possible….
Other
species?
Count
seeds
Possibility to collaborate with other exam workers,anduse differentspeciesinthesamestudy!
• Supervised by:
Lina Herbertsson
070‐296 42 55
046‐222 86 34
[email protected]