Turf lawns account for 2% of continental US land cover Outside - - PowerPoint PPT Presentation

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Feb 22, 2024 302 likes •441 views

Turf lawns account for 2% of continental US land cover Outside homes, public parks, commercial areas/storefronts Urban/Suburban expansion Reconciliation Ecology: Encouraging biodiversity in human-dominated landscapes.

SLIDE 1

SLIDE 2

Turf lawns account for 2% of

continental US land cover

Outside homes, public parks,

commercial areas/storefronts

Urban/Suburban expansion

Reconciliation Ecology: Encouraging

biodiversity in human-dominated landscapes.

Middle-ground for humans and

bees

SLIDE 3

Redesigning the turf lawn

How can we remodel the turf lawn to meet the

needs of both humans and bees

Enhance turf areas with angiosperms

SLIDE 4

Build from the bottom up

Selecting a turf species (Ian Lane)
Selecting floral species
Evaluating management practices
Quantifying bee communities

SLIDE 5

Which turfgrass species

Low maintenance
Non-competetive species

Density Growth rate

SLIDE 6

Testing turf species for forb establishment

Grass species

Kentucky bluegrass Hard fescue Tall fescue Perennial ryegrass

Forb Species

Kura clover

Two trials (2013, 2014)

SLIDE 7

8 forbs

evaluated for establishment

6 native, 2 non-

native

Compared two

difgerent sites

SPRF (Sandy soil)
TROE (Clay-loam)

SLIDE 8

White clover, Self-heal,

creeping thyme, ground plum established successfully

Ground plum only at SPRF

Consistent results between

years.

Bloom totals difger, trends similar

Thyme establishment at SPRF

Bloom totals low, high vegetation counts

SLIDE 9

Pre-seeding disruption

Altering grass/soil surface

Scalping, aeration, control

Between site difgerences

High management vs low management

Floral species

Clover, Heal, Thyme

SLIDE 10

Establishment more

successful at low management site.

Scalping benefits

establishment of clover

Results for heal/thyme

not definitive

SLIDE 11

How can we quantify the

efgects of turf lawn enhancement

Establish a baseline

Sample bees on existing

patches of white clover in Minneapolis parks

Parks sampled

SLIDE 12

Phase Two

Enhanced parks vs clover only parks

Site setup

Dormant seeding
Pre-seeding disruption
Comparing bee communities

SLIDE 13

Dr. Marla Spivak
Dr. Eric Watkins

Ian Lane, Ph.D candidate Andrew Hollman Umn Bee lab Umn Turf lab

Money