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Service Description: This layer shows the number of threatened amphibians, birds, mammals, reptiles and plant taxa whose distribution overlaps in each 10 km cell. Species ranges were rasterised at 1 km resolution from polygon maps from:
Additional vascular plant species ranges were created from point data from the IUCN Red List, Botanic Gardens Conservation International (BGCI) (
www.bgci.org), and the Global Biodiversity Information Facility (GBIF) (
www.gbif.org). Species range maps were refined, when possible, by removing unsuitable areas using information on species’ habitat preferences and species' known altitudinal limits. This refinement process produced Areas of Habitat (AOH) maps for each species (Brooks et al. 2019).
Other References:
- Brooks, T. M. et al. (2019). Measuring Terrestrial Area of Habitat (AOH) and Its Utility for the IUCN Red List. Trends in Ecology & Evolution 34:977–986. doi.org/10.1016/j.tree.2019.06.009
- BGCI (2019). ThreatSearch online database. bgci.org/threat_search.
- Enquist, B.J. et al. (In prep.). Botanical big data shows that plant diversity in the New World is driven by climatic-linked differences in evolutionary rates and biotic exclusion.
- Jung, M., et al.(2020). A global map of terrestrial habitat types. Sci. Data 7, 256. www.nature.com/articles/s41597-020-00599-8.
- Maitner, B.S. et al. (2017). The BIEN R package: A tool to access the Botanical Information and Ecology Network (BIEN) database. Methods in Ecology and Evolution; 9:373–379. doi/10.1111/2041-210X.12861
- Roll, U. et al. (2017), The global distribution of tetrapods reveals a need for targeted reptile conservation, Nature Ecology & Evolution, 1: 1677–1682, doi.org/10.1038/s41559-017-0332-2.
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Description: Global island data broken into four layers: continental mainlands, big islands (> 1km2), small islands (<= 1km2 AND >= 0.0036km2), and very small islands (< 0.0036km2).
This dataset builds on a USGS Esri product produced in 2018 through global classification of composite 2015 Landsat imagery as water or land with a minimum mapping unit of 3600 square meters (the area of four contiguous Landsat pixels) (Sayer et al. 2018). The USGS Esri data was compared and merged with a global islands dataset created and maintained by WCMC and Island Conservation. Islands that were missing from the original USGS Esri dataset were gathered and included from the WCMC Island Conservation data and further polygon attribute information was collected as well.
Service Item Id: 3c69348bdc1845f3a71fa2858dbcbe78
Copyright Text: UNEP-WCMC (2020) Threatened species richness. Derived from Areas of Habitat maps created from data from the IUCN Red List, BirdLife International, the Global Assessment of Reptile Distributions (GARD), the Botanical Information and Ecology Network (BIEN) database and additional vascular plant species ranges were created from point data from the IUCN Red List, Botanic Gardens Conservation International (BGCI), the Global Biodiversity Information Facility (GBIF) and iNaturalist. Cambridge, UK.
Spatial Reference:
102100
(3857)
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- Spatial Reference: 102100
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Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Data_Mgmt.aprx
Author:
Comments: Global island data broken into four layers: continental mainlands, big islands (> 1km2), small islands (<= 1km2 AND >= 0.0036km2), and very small islands (< 0.0036km2).
This dataset builds on a USGS Esri product produced in 2018 through global classification of composite 2015 Landsat imagery as water or land with a minimum mapping unit of 3600 square meters (the area of four contiguous Landsat pixels) (Sayer et al. 2018). The USGS Esri data was compared and merged with a global islands dataset created and maintained by WCMC and Island Conservation. Islands that were missing from the original USGS Esri dataset were gathered and included from the WCMC Island Conservation data and further polygon attribute information was collected as well.
Subject: Global island data as a result of collaboration between USGS, Esri and WCMC.
Category:
Keywords: IUCN Red List,UNEP-WCMC,NatureMap,Threatened Species Richness
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