EarthEnv

The EarthEnv project is a collaborative project of biodiversity scientists and remote sensing experts to develop near-global standardized, 1km resolution layers for monitoring and modeling biodiversity, ecosystems, and climate. The work is supported by NCEAS, NASA, NSF, and Yale University.

For more information about this provider: https://www.earthenv.org/

HabitatHeterogeneity

using SpeciesDistributionToolkit
layer = SDMLayer(RasterData(EarthEnv, HabitatHeterogeneity))  

The dataset contains 14 metrics quantifying spatial heterogeneity of global habitat at multiple resolutions based on the textural features of Enhanced Vegetation Index (EVI) imagery acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS). For additional information about the metrics and the evaluations of their utility for biodiversity modeling, please see the associated journal article:

Citation

Tuanmu, M.-N. and W. Jetz. (2015) A global, remote sensing-based characterization of terrestrial habitat heterogeneity for biodiversity and ecosystem modeling. Global Ecology and Biogeography. DOI: 10.1111/geb.12365.

For more information about this dataset: https://www.earthenv.org/texture

Keyword argument layer

Layer code	Description
Variance	Variance
Range	Range
Simpson	Simpson
Shannon	Shannon
Contrast	Contrast
Uniformity	Uniformity
Coefficient of variation	Coefficient of variation
Evenness	Evenness
Standard deviation	Standard deviation
Correlation	Correlation
Entropy	Entropy
Dissimilarity	Dissimilarity
Homogeneity	Homogeneity
Maximum	Maximum

Keyword argument resolution

25km - 12.5

1km - 0.5

5km - 2.5

LandCover

using SpeciesDistributionToolkit
layer = SDMLayer(RasterData(EarthEnv, LandCover))  

The dataset integrates multiple global remote sensing-derived land-cover products and provide consensus information on the prevalence of 12 land-cover classes at 1-km resolution. For additional information about the integration approach and the evaluations of the datasets, please see the associated journal article:

Citation

Tuanmu, M.-N. and W. Jetz. 2014. A global 1-km consensus land-cover product for biodiversity and ecosystem modeling. Global Ecology and Biogeography 23(9): 1031-1045.

For more information about this dataset: https://www.earthenv.org/landcover

Keyword argument layer

Layer code	Description
Evergreen/Deciduous Needleleaf Trees	Evergreen/Deciduous Needleleaf Trees
Shrubs	Shrubs
Herbaceous Vegetation	Herbaceous Vegetation
Deciduous Broadleaf Trees	Deciduous Broadleaf Trees
Open Water	Open Water
Regularly Flooded Vegetation	Regularly Flooded Vegetation
Cultivated and Managed Vegetation	Cultivated and Managed Vegetation
Evergreen Broadleaf Trees	Evergreen Broadleaf Trees
Mixed/Other Trees	Mixed/Other Trees
Urban/Built-up	Urban/Built-up
Snow/Ice	Snow/Ice
Barren	Barren

Keyword argument full

Version with GlobCover (2005-06; v2.2), MODIS land-cover product (MCD12Q1; v051), GLC2000 (global product; v1.1), and DISCover (GLCC; v2) - true

Version without DISCover - false