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. 2022 May;49(5):979-992.
doi: 10.1111/jbi.14330. Epub 2022 Mar 27.

Expert range maps of global mammal distributions harmonised to three taxonomic authorities

Charles J Marsh  1   2 Yanina V Sica  1   2 Connor J Burgin  3 Wendy A Dorman  1   2 Robert C Anderson  1   2 Isabel Del Toro Mijares  1   2 Jessica G Vigneron  1   2 Vijay Barve  4 Victoria L Dombrowik  1   2 Michelle Duong  1   2 Robert Guralnick  4 Julie A Hart  1   2   5 J Krish Maypole  1   2 Kira McCall  1   2 Ajay Ranipeta  1   2 Anna Schuerkmann  1   2 Michael A Torselli  1   2 Thomas Lacher Jr  6   7 Russell A Mittermeier  7 Anthony B Rylands  7 Wes Sechrest  7 Don E Wilson  8 Agustín M Abba  9 Luis F Aguirre  10 Joaquín Arroyo-Cabrales  11 Diego Astúa  12 Andrew M Baker  13   14 Gill Braulik  15 Janet K Braun  16 Jorge Brito  17 Peter E Busher  18 Santiago F Burneo  19 M Alejandra Camacho  19 Paolo Cavallini  20 Elisandra de Almeida Chiquito  21 Joseph A Cook  22 Tamás Cserkész  23 Gábor Csorba  23 Erika Cuéllar Soto  24 Valeria da Cunha Tavares  25   26 Tim R B Davenport  27 Thomas Deméré  28 Christiane Denys  29 Christopher R Dickman  30 Mark D B Eldridge  31 Eduardo Fernandez-Duque  32 Charles M Francis  33 Greta Frankham  31 William L Franklin  34 Thales Freitas  35 J Anthony Friend  36 Elizabeth L Gadsby  37 Guilherme S T Garbino  38 Philippe Gaubert  39 Norberto Giannini  40 Thomas Giarla  41 Jason S Gilchrist  42 Jaime Gongora  43 Steven M Goodman  44 Sharon Gursky-Doyen  45 Klaus Hackländer  46 Mark S Hafner  47 Melissa Hawkins  8 Kristofer M Helgen  31 Steven Heritage  48 Arlo Hinckley  49 Stefan Hintsche  50 Mary Holden  51 Kay E Holekamp  52 Rodney L Honeycutt  53 Brent A Huffman  54 Tatyana Humle  55 Rainer Hutterer  56 Carlos Ibáñez Ulargui  49 Stephen M Jackson  57 Jan Janecka  58 Mary Janecka  59 Paula Jenkins  60 Rimvydas Juškaitis  61 Javier Juste  49 Roland Kays  62 C William Kilpatrick  63 Tigga Kingston  64 John L Koprowski  65 Boris Kryštufek  66 Tyrone Lavery  67 Thomas E Lee Jr  68 Yuri L R Leite  69 Roberto Leonan M Novaes  70 Burton K Lim  71 Andrey Lissovsky  72 Raquel López-Antoñanzas  73 Adrià López-Baucells  74 Colin D MacLeod  75 Fiona G Maisels  76   77 Michael A Mares  16 Helene Marsh  78 Stefano Mattioli  79 Erik Meijaard  80 Ara Monadjem  81   82 F Blake Morton  83 Grace Musser  84 Tilo Nadler  85 Ryan W Norris  86 Agustina Ojeda  87 Nicté Ordóñez-Garza  17 Ulyses F J Pardiñas  88 Bruce D Patterson  44 Ana Pavan  89 Michael Pennay  90 Calebe Pereira  91 Joyce Prado  92 Helder L Queiroz  93 Matthew Richardson  94 Erin P Riley  95 Stephen J Rossiter  96 Daniel I Rubenstein  97 Dennisse Ruelas  98   99 Jorge Salazar-Bravo  64 Stéphanie Schai-Braun  100 Cody J Schank  101   7 Christoph Schwitzer  102 Lori K Sheeran  103 Myron Shekelle  104 Georgy Shenbrot  105 Pipat Soisook  106 Sergio Solari  107 Richard Southgate  108 Mariella Superina  109 Andrew B Taber  110 Maurício Talebi  111 Peter Taylor  112 Thong Vu Dinh  113 Nelson Ting  114 Diego G Tirira  115 Susan Tsang  51 Samuel T Turvey  116 Raul Valdez  117 Victor Van Cakenberghe  118 Geraldine Veron  119 Janette Wallis  120 Rod Wells  121 Danielle Whittaker  122 Elizabeth A Williamson  77 George Wittemyer  123 John Woinarski  124 Dietmar Zinner  125 Nathan S Upham  1   2   126 Walter Jetz  1   2
Affiliations

Expert range maps of global mammal distributions harmonised to three taxonomic authorities

Charles J Marsh et al. J Biogeogr. 2022 May.

Abstract

Aim: Comprehensive, global information on species' occurrences is an essential biodiversity variable and central to a range of applications in ecology, evolution, biogeography and conservation. Expert range maps often represent a species' only available distributional information and play an increasing role in conservation assessments and macroecology. We provide global range maps for the native ranges of all extant mammal species harmonised to the taxonomy of the Mammal Diversity Database (MDD) mobilised from two sources, the Handbook of the Mammals of the World (HMW) and the Illustrated Checklist of the Mammals of the World (CMW).

Location: Global.

Taxon: All extant mammal species.

Methods: Range maps were digitally interpreted, georeferenced, error-checked and subsequently taxonomically aligned between the HMW (6253 species), the CMW (6431 species) and the MDD taxonomies (6362 species).

Results: Range maps can be evaluated and visualised in an online map browser at Map of Life (mol.org) and accessed for individual or batch download for non-commercial use.

Main conclusion: Expert maps of species' global distributions are limited in their spatial detail and temporal specificity, but form a useful basis for broad-scale characterizations and model-based integration with other data. We provide georeferenced range maps for the native ranges of all extant mammal species as shapefiles, with species-level metadata and source information packaged together in geodatabase format. Across the three taxonomic sources our maps entail, there are 1784 taxonomic name differences compared to the maps currently available on the IUCN Red List website. The expert maps provided here are harmonised to the MDD taxonomic authority and linked to a community of online tools that will enable transparent future updates and version control.

Keywords: GIS; Mammalia; biodiversity; biogeography; conservation planning; mapping; species distributions.

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Conflict of interest statement

CONFLICT OF INTEREST The authors declare no competing interests.

Figures

FIGURE 1
FIGURE 1
Range maps georeferenced from the Handbook of the Mammals of the World (HMW) for four South American species, (a) Alouatta caraya, (b) Pteronura brasiliensis, (c) Hydrochoerus hydrochaeris and (d) Panthera onca. Different maps species show different levels of precision (i.e., how roughly it approximates the edge of the species' range and how finely they demarcate different populations) and so will differ in their accuracy at different grain sizes
FIGURE 2
FIGURE 2
Global richness maps of terrestrial mammals generated by all species with digitisable range maps in (a) the Handbook of the Mammals of the World (HMW), (b) the Illustrated Checklist of the Mammals of the World (CMW) and (c) the CMW harmonised to the latest taxonomy from the Mammal Diversity Database (MDD), as well as the difference in species richness between (d) the HMW minus the CMW, (e) the HMW minus the MDD and (f) the CMW minus the MDD. Detailed regions (sub‐Saharan Africa) for each map of difference are presented to the right, with main differences attributed to the inclusion (HMW, CMW) or exclusion (MDD) of ungulate species from Groves and Grubb (2011). Richness maps were generated by intersecting each species' range map with a global equal‐area grid with cell widths of 0.5° and cell height variable by latitude in the Behrmann cylindrical equal‐area projection
FIGURE 3
FIGURE 3
Comparisons with expert maps contributed to IUCN assessment. (a and c) Richness patterns and absolute differences with the Mammal Diversity Database (MDD) calculated as MDD minus IUCN (for details see Figure 2). (b and d) Map differences for the antelope Kobus kob in West and Central Africa. In the IUCN source (b), it is treated as a single species and includes information on the type of distribution and seasonality, but it is separated into four species in the Handbook of the Mammals of the World (HMW) and the Illustrated Checklist of the Mammals of the World (CMW) (d)

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