ecological condition of the lower 48 states
DESCRIPTION
Ecological Condition of the Lower 48 States. TNC ’ s Mission. …to preserve the plants, animals and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive. Project Objectives:. - PowerPoint PPT PresentationTRANSCRIPT
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Ecological Condition of the
Lower 48 States
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TNC’s Mission
…to preserve the plants,
animals and natural
communities that represent the
diversity of life on Earth by
protecting the lands and waters
they need to survive.
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Project Objectives:
The objectives of this analysis are to calculate ecological departure inside and outside of various landscape classes and ownerships.
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Ecological Departure
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Ecological Departure
reference condition current condition
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Standard 5-Box Model
Succession Disturbance
C) Mid-openB) Mid-closed
A) Early, post-replacement
D) Late-openE) Late-closed
Ecological Departure cont…
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Ecological Departure Cont…
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Ecological Departure
(aka fire regime condition class)
Class Departure Name
1 0-33% Low
2 34-66% Moderate
3 67-100% High
1924 1999
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Data & Methods
Departure
Dominate Cover Lifeform
TNC Portfolio Sites
Fire Regime GroupsTNC Divisions
States
Ownership
Ecoregions
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Data & Methods
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Jobs for “the Calculator”
Explore vegetation departure for BIG areas:– Regions– States
Compare departure between agencies for the country or particular states
Learn about historic fire regimes by state, agency, TNC portfolio sites, departure level
Let’s try it!
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Results
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Appropriate Use
Zumwalt Preserve ~ 33, 000 Acres
Middle Rockies Blue Mountains Ecoregion ~50 million Acres
Greater than ½ million Acres as a rule of thumb
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Where to get the Calculator -
http://www.tncfire.org/AssessingVegetationConditions.htm
Google: Landfire Vegetation Departure Calculator
OR go to -
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Take Home Messages
•Ecological conditions across the L48 are highly departed
•This tool is useful for evaluating program and policy decisions at the state, regional and national level.
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Questions Comments Feedback
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Results
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Results
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Results
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Take Home Messages
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Ecological Departure
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Results