Sources

GBIF data used

GBIF.org (11 April 2020) GBIF Occurrence Download: https://doi.org/10.15468/dl.5gzpc3.

Sources for species distribution information

Species group	Dataset	Source
Birds	Jetz Bird Maps	Jetz et al. 2012
Mammals	IUCN Mammal Range Maps	IUCN (2017)
Amphibians	IUCN Amphibian Range Maps	IUCN (2016)
Reptiles	Global Assessment of Reptile Distributions	Roll et al. 2017

Species group

Dataset

Source

Birds

Jetz Bird Maps

Jetz et al. 2012

Mammals

IUCN Mammal Range Maps

IUCN (2017)

Amphibians

IUCN Amphibian Range Maps

IUCN (2016)

Reptiles

Global Assessment of Reptile Distributions

Roll et al. 2017

Sources of taxonomic information

Species group	Master taxonomy	Additional sources of names
Birds	Clements et al. 2019	ITIS, IUCN, AviBase
Mammals	Upham et al. 2019	Wilson and Reeder 2005, Mammal Diversity Database V2, IUCN, Wikipedia
Amphibians	AmphibiaWeb 2019	ITIS, IUCN, Wikipedia, Frost
Reptiles	Uetz et al. 2019	ITIS, IUCN, Wikipedia

Taxonomic resolution summary

Species Group	Total GBIF records (n)	Total non-duplicates (n)	Total validated (n)
Birds	1,009,055,809	749,320,288	447,393,137
Mammals	11,068,306	6,743,399	4,268,927
Amphibians	3,183,717	1,637,351	1,232,468
Reptiles	3,495,145	2,204,082	1,485,259

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