going with the flow: conserving resilient and connected ... · going with the flow: conserving...
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D A V I D P A T R I C K & M A R K A N D E R S O ND A V I D . P A T R I C K @ T N C . O R G
Going with the Flow: Conserving Resilient and Connected
Landscapes
Acknowledgements
Mark Anderson and his team
75 scientists, 8 years of work
The world is changing
npr.org
Plants and animals must adapt or relocate
Habitat alteration
Climate change and habitat alteration
Source Unoccupied habitat
Distance
Permeability
Where should we focus land conservation efforts to maximize the likelihood that terrestrial biodiversity in eastern North America can persist in a changing world?
Focal question
A continuing journey for The Nature Conservancy
1. Conserving Nature’s Stage
2. Climate-Resilient Sites
3. Resilient and Connected Landscapes
1. Conserving Nature’s Stage
Species diversity is strongly correlated with Geophysical diversity
Anderson and Ferree. 2010. Conserving the Stage: Climate change and the geophysical underpinnings of species diversity
Species Diversity predicted from:LandformBedrockSoilTopography
Create arenas for evolution, not museums of the past
Mafic (amphibolite) Moderately Calcareous Coarse Sand
Coastal Sand Limestone Fine Silt/Organic
Sedimentary (sandstone) Granite
H O W C A N W E I D E N T I F Y S I T E S W H E R E B I O D I V E R S I T Y I S L I K E L Y T O B E A B L E T O
P E R S I S T I N T H E F A C E O F C L I M A T E C H A N G E ?
2. Climate-Resilient Sites
What creates natural resilience?
Many microclimates leading to Landscape Diversity
Landform
Elevation range
Wetland density
Soil variety
Diversity is only useful if organisms can access better conditions
Local connectedness
Less fragmented areas are more connected
Areas for each Geophysical Setting with the highest landscape diversity and the highest local connectedness
Resilience Index
PRODUCT: RESILIENCE
R E S I L I E N T A N D C O N N E C T E D L A N D S C A P E S F O R T E R R E S T R I A L C O N S E R V A T I O N
3. Adding Connectivity
How we identified connecting landscapes
Circuitscape: Imagines “current” passing through landscape
Suitable habitat allows current to flow more easily
Habitat alteration creates “anthropogenic resistance”, reducing flow
Inlandbays.org
Resistance
PRODUCT: FLOW DATA
W H A T S P A T I A L C O N F I G U R A T I O N I S N E E D E D T O P R O D U C E A N E C O L O G I C A L L Y C O H E R E N T N E T W O R K T H A T A L L O W S F O R A D A P T A T I O N
A N D C H A N G E ?
Integration: Developing a Resilient and Connected Landscape
Go with the Flow!
1. Start with Resilient sites 2. Add in Flow3. Identified & emphasized important biodiversity features*4. Prioritize among resilient sites based on flow and biodiversity
Important biodiversity features
1. Resilience patches: Large roadless patches
2. Large contiguous areas of each geophysical setting
3. Underrepresented geophysical settings
4. Confirmed presence of rare species
5. Confirmed presence of exemplary natural communities
The Results
Prioritized resilient sites and linkages combined to create a resilient and connected network of sites covering 23% (106 million acres) of region
Represents all geophysical settings
Contains over 8,000 known rare species or communities
23 million acres of riparian corridors
Resilient and Connected Landscapes
Applications: A Stronger Network
Ohio DNR
Regional vision for connectivity science
Identifies priorities for land protection and management
Guides priorities for road mitigation
Resources available
Spatial datasets
Web mapper
Technical report
Connectivity white paper
Technical support
Thanks and Questions