Current Terrestrial Landscape Intactness (1km), DRECP

Aug 12, 2013 (Last modified Sep 29, 2014)
1KM Results: Current Terrestrial Landscape Intactness in the DRECP Study Area, 12km Buffer (v15a).

Terrestrial intactness quantifies the signature of human impact on the landscape. Ecological intactness is high in areas where development is low, vegetation quality is high, and fragmentation is low. 

This dataset provides an estimate of current terrestrial intactness, based on an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness.

See EEMS model diagram attached.

This model integrates agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces), linear development (from Tiger 2012 Roads, utility lines, and pipelines), OHV recreation areas, energy and mining development (from state mine and USGS national mines datasets as well as geothermal wells, oil/gas wells, wind turbines, and power plant footprints), vegetation departure (from LANDFIRE VDEP),  invasive vegetation (multiple sources combined for invasives analyses), and measures of natural vegetation fragmentation calculated using FRAGSTATS. In this version, Maxent modeled Sahara Mustard was included in the Invasive's branch as well as in the Fragstats model run. 

Caution is warranted in interpreting this dataset because it provides a single estimate of terrestrial intactness based on available data. The degree of terrestrial intactness likely varies for a particular species or conservation element, and may depend on additional factors or thresholds not included in this model. Instead, this model should be taken as a general measure of intactness that can serve as a template for evaluating across many species at the ecoregion scale, and provides a framework within which species-specific parameters can be incorporated for more detailed analyses.

Change log:

1. Vegetation (Fire Regime) Departure was reclassified as follows:
Agriculture, Urban, Departure Not Calculated -> NoData
Sparse Vegetation, Barren, Snow/Ice, Water -> 0In previous versions, all of the aforementioned categories were calculated as NoData.
2. Change Vegetation Departure weight from 0.05 (v14a) to 0.2
3. Change Agricultural Development weight from 0.7 (v14a) to 0.5
Data Provided By:
Conservation Biology Institute
Content date:
Contact Organization:
Conservation Biology Institute
Contact Person(s):
Use Constraints:
This work is licensed under a Creative Commons Attribution 3.0 License.
Layer Type:
Currently Visible Layer:
All Layer Options:
Layers in this dataset are based on combinations of the following options. You may choose from these options to select a specific layer on the map page.
Spatial Resolution:
Other Information:
Time Period:
Layer Accuracy:
Attribute Accuracy:
FGDC Standard Metadata XML
Click here to see the full FGDC XML file that was created in Data Basin for this layer.
Original Metadata XML
Click here to see the full XML file that was originally uploaded with this layer.
This dataset is visible to everyone
Dataset Type:
Layer Package
Includes Environmental Evaluation Modeling System Logic model
Downloaded by 25 Members
Bookmarked by 4 Members , 6 Groups
Included in 1 Public Map , 41 Private Maps
Included in 5 Public Galleries

About the Uploader

Conservation Biology Institute

The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.