creating ecological networks - villanova
TRANSCRIPT
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CREATING ECOLOGICAL NETWORKS
BEYOND THE STORMWATER FUNCTION OF LID: Creating Ecological Networks
Mark Merkelbach, PWSHerrera Environmental Consultants
Seattle, Washington
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Transformation of a City
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CREATING ECOLOGICAL NETWORKS
Ecological Monographs 80:651–669
Fragmentation
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CREATING ECOLOGICAL NETWORKS
Movement
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Connectivity – Riparian Landscapes
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CREATING ECOLOGICAL NETWORKS
Connectivity – Hedgerows
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Connectivity – Patterns
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Functions
•Water Transport•Flood Retention•Groundwater Recharge•Shade•Nutrient Transport•Food and Shelter•Wildlife Movement•Soil Conditioning
Riparian Corridor
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CREATING ECOLOGICAL NETWORKS
Functions
•Water Transport•Flood Retention•Groundwater Recharge•Shade•Nutrient Transport•Food and Shelter•Wildlife Movement•Soil Conditioning
Riparian Corridor Road Corridor
•Water Transport•Flood Retention•Groundwater Recharge•Shade•Nutrient Transport•Food and Shelter•Wildlife Movement•Soil Conditioning
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CREATING ECOLOGICAL NETWORKS
Functions
•Shade•Nutrient Transport•Water Transport•Flood Retention•Groundwater Recharge
•Food and Shelter•Wildlife Movement•Soil Conditioning
LID Corridor
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CREATING ECOLOGICAL NETWORKS
FOOD
WATER
SHELTER
Urban Wildlife Requirements
•Food and Shelter•Wildlife Movement
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CREATING ECOLOGICAL NETWORKS
Wildlife – Food Sources
•Native plants Seeds Fruits Nuts Berries Nectar
•Adult butterflies are attracted to red, yellow, orange, pink and purple blossoms that are flat‐topped or clustered and have short flower tubes.
•Know who is feeding in your backyard
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CREATING ECOLOGICAL NETWORKS
Wildlife– Cover and Rearing
•Examples:Thicket (multiple vegetation canopies)Rock Pile Woody DebrisDense Shrubs Nesting box
Lawns have little value to birds or other wildlife, and they require more energy for mowing, applying fertilizers and watering.
•Recreate the plant ecosystem native to your area. •Evergreen trees and shrubs provide excellent cover through all seasons,
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CREATING ECOLOGICAL NETWORKS
American Kestrel 3Ash‐Throated Flycatcher 1 1/2Barn Owl 6
Black‐Capped Chickadee 1 1/8
Carolina Wren 1 1/2Downy Woodpecker 1 1/4Eastern Bluebird 1 1/2House Finch 2House Wren 1 1/4Northern Flicker 2 1/2Prothonotary Warbler 1 1/8Purple Martin 2 1/2Tufted Titmouse 1 1/4Violet‐Green Swallow 1 1/2White‐Breasted Nuthatch 1 1/4
Optimum Hole Sizes (Inches) for Common Birdhouse Nesting Species
Size Matters
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CREATING ECOLOGICAL NETWORKS
Wildlife– Cover and Rearing
Canopy Levels
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CREATING ECOLOGICAL NETWORKS
Wildlife ‐ Pollinators
•A minimum of 15 blooming species in any plant palette
•Include species that bloom throughout the year (extend blooming periods with native species that flower or provide habitat at different times of year)
•Plants in massings, groupings, or clumps (not as individual plants); massings of desirable species are easier for pollinators to find
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CREATING ECOLOGICAL NETWORKS
Guangzhou Wetland ParkGuangdong Province, China
•26 square kilometers
•Master Plan – support development and restore and protect last remaining green areas in Guangzhou City
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Longmu Bay ResortHainan Island, China
•5 square kilometers
•Ocean Beach Resort– LID design of roadways and development properties to protect canal and ocean water quality
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
Lots of Sand
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CREATING ECOLOGICAL NETWORKS
5 Year Event 5年一遇 Performance: 80%
(10.74 in)
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CREATING ECOLOGICAL NETWORKS
Birds and Pollinators•Palms and dense herbaceous•18 Flowering species •Min. 3 blooming per season
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CREATING ECOLOGICAL NETWORKS
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CREATING ECOLOGICAL NETWORKS
The Last Slide