landscape integrity jamie trammell-aknhp. landscape integrity landscape integrity dataset for...
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Landscape IntegrityJamie Trammell-AKNHP
Landscape Integrity
• Landscape Integrity dataset for current, near-term, and long-term– Landscape Condition Model (LCM)– Large Intact Blocks (LIB)
• Conservation Element status for current, near-term, and long-term
• Ecological Intactness for current, near-term, and long-term
Landscape Condition Model
NatureServe (Comer and Hak)
1. Identify any/all human footprint2. Assign impact factors to each
footprint type3. Assign distance decay values to
each impact4. Sum total impact over landscape
Approach to LCM
Theme Data SourceSite
Impact Score
Est. Relative Stress
Decay Distance (m)
Transportation Dirt roads, 4-wheel drive ESRI StreetMap 0.7 Low 500Local and connecting roads ESRI StreetMap 0.5 Medium 500Secondary and connecting roads ESRI StreetMap 0.2 High 1000Primary Highways with limited access ESRI StreetMap 0.05 Very High 5000Primary Highways w/out limited access ESRI StreetMap 0.05 Very High 5000Urban and Industrial Development Low Density Development NLCD 2001 0.6 Medium 1000Medium Density Development NLCD 2001 0.5 Medium 1000Powerline/Transmission lines DNR 0.5 Medium 500Oil /gas Wells DNR 0.5 Medium 500High Density Development NLCD 2001 0.05 Very High 5000Mines USGS 0.05 Very High 500Managed and Modified Land Cover Ruderal Forest & Upland AK Mosaic 0.9 Very Low 0Native Veg. with introduced Species AK Mosaic/AKEPIC 0.9 Very Low 0Recently Logged AK Mosaic 0.9 Very Low 200Managed Tree Plantations AK Mosaic 0.8 Low 200Introduced Tree & Shrub AK Mosaic/AKEPIC 0.5 Medium 200Introduced Upland grass & forb AK Mosaic/AKEPIC 0.5 Medium 200Introduced Wetland AK Mosaic/AKEPIC 0.3 High 200Cultivated Agriculture AK Mosaic 0.3 High 200
Approach to LCM-YKL
Theme Data SourceSite
Impact Score
Est. Relative Stress
Decay Distance (m)
Transportation Dirt roads, 4-wheel drive ESRI StreetMap 0.7 Low 500Local and connecting roads ESRI StreetMap 0.5 Medium 500Secondary and connecting roads ESRI StreetMap 0.2 High 1000Primary Highways with limited access ESRI StreetMap 0.05 Very High 5000Primary Highways w/out limited access ESRI StreetMap 0.05 Very High 5000Urban and Industrial Development Low Density Development NLCD 2001 0.6 Medium 1000Medium Density Development NLCD 2001 0.5 Medium 1000Powerline/Transmission lines DNR 0.5 Medium 500Oil /gas Wells DNR 0.5 Medium 500High Density Development NLCD 2001 0.05 Very High 5000Mines USGS 0.05 Very High 500Managed and Modified Land Cover Ruderal Forest & Upland AK Mosaic 0.9 Very Low 0Native Veg. with introduced Species AK Mosaic/AKEPIC 0.9 Very Low 0Recently Logged AK Mosaic 0.9 Very Low 200Managed Tree Plantations AK Mosaic 0.8 Low 200Introduced Tree & Shrub AK Mosaic/AKEPIC 0.5 Medium 200Introduced Upland grass & forb AK Mosaic/AKEPIC 0.5 Medium 200Introduced Wetland AK Mosaic/AKEPIC 0.3 High 200Cultivated Agriculture AK Mosaic 0.3 High 200
YKL LCM Data
YKL LCM Data
YKL LCM Data
YKL LCM Data
Landscape Condition Model
Used Euclidean Distance to calculate distance decay• Create a gradient increasing in values as
you move toward the end of the buffer• Multiply by impact factor
YKL LCM Data
YKL LCM Data
YKL LCM Data
Landscape Condition Model
Combined all individual models into final LCM• Merged the datasets using MIN rules–Originally proposed a fuzzy sum, but
doesn’t make sense to reduce (by averaging) the impact of the high impact footprints
Current Landscape Condition
As expected, most of the YKL is relatively pristine
Intense, localized impact
Spatial resolution (60 m)
Current Landscape Condition
As expected, most of the YKL is relatively pristine
Intense, localized impact
Spatial resolution (60 m)
Current Landscape Condition
As expected, most of the YKL is relatively pristine
Intense, localized impact
Spatial resolution (60 m)
Current Landscape Condition
As expected, most of the YKL is relatively pristine
Intense, localized impact
Spatial resolution (60 m)
Current Landscape Condition
As expected, most of the YKL is relatively pristine
Intense, localized impact
Spatial resolution (60 m)
Current Landscape Integrity
However, this scale is not appropriate (very likely we have missed impacts)
98.4% of the ecoregion is completely intact
Using the raw LCM, we can segment into Large Intact Blocks
Current Landscape Condition
Summarized by 10-digit HUC
Overall condition still very high
Some patterns begin to emerge
Current Landscape Integrity
83% of the ecoregion (by HUC) is completely intact
If we take the top 4 of the 5 quintiles, we see a partially fragmented landscape
All are Large Intact Blocks > 50,000 acres
Current Landscape Integrity
49% of the ecoregion (by HUCs) is completely intact
If we look at HUCs where there is no human footprint whatsoever, we get an even more fragmented landscape
Current Landscape Integrity
49% of the ecoregion (by HUCs) is completely intact
If we look at HUCs where there is no human footprint whatsoever, we get an even more fragmented landscape
All are Large Intact Blocks > 50,000 acres
Next Steps
Assess the status of each CE according to the LCM– Using the 10-digit HUC summarized LCM– First done for current time period, then near and
long-term time periods
Current CE Status
We will be examining the distribution of each CE and assessing it’s habitat status according to the Landscape Integrity
Summary1. Landscape condition of the YKL is
very good2. When summarized at the 10-digit
HUC (5th level watershed) there are some clear patterns that can be used to infer overall intactness
3. Level of landscape integrity an important management question
Questions or Comments?
Jamie [email protected]