The relative importance of the different processes that determine the
distribution of species and the assembly of communities is a key question
in ecology. The distribution of any individual species is affected by a
wide range of environmental variables as well as through interactions with
other species; the resulting distributions determine the pool of species
available to form local communities at fine spatial scales. A challenge in
community ecology is that these interactions (e.g., competition,
facilitation, etc.) often are not directly measurable. Here, we used
Hierarchical Modelling of Species Communities (HMSC), a recently developed
framework for joint species distribution modelling, to estimate the role
of biotic effects alongside environmental factors using latent variables.
We investigate the role of these factors determining species distributions
in communities of Artiodactyla, Perissodactyla and Proboscidea in the
Afrotropics, an area of peak species richness for hoofed mammals. We also
calculate pairwise trait dissimilarity between these species, from a
mixture of morphological and behavioural traits, and investigate the
relationship between dissimilarity and estimated residual co-occurrence in
the model. We find that while ungulate distributions appear to be
predominantly determined (~70%) by climatic variables, such as
precipitation, a substantial proportion of the variance in ungulate
species distributions (~30%) can also be attributed to modelled latent
variables that likely represent a combination of dispersal barriers and
biotic factors. Although we find only a weak relationship between residual
co-occurrence and trait dissimilarity, we suggest that our results may
show evidence that biotic factors, likely influenced by historical
barriers to species dispersal, are important in determining species
communities over a continental area. The HMSC framework can be used to
provide insight into factors affecting community assembly at broad scales,
and to make more powerful predictions about future species distributions
as we enter an era of increasing impacts from anthropogenic change. Data were collected as described in the manuscript. # Data from: **Climatic Variables Alone do not Determine Ungulate
Distributions in the Afrotropics** --- This repository contains all data
used for the paper "Climatic Variables Alone do not Determine
Ungulate Distributions in the Afrotropics". ## Description of the
Data and file structure
**Presab_plus_climate_variables_PROTECTEDAREASONLY_Res10arcminutes.csv,
\_OpenHabitats.csv, \_TropicalForests.csv** These three files contain
presence/absence data for all ungulate species included in the analysis
for all points in the **Afrotropics at 10 arcminute resolution**, with
data derived from IUCN species range maps processed using the letsR
package. Additionally, they contain environmental data for all points in
the matrix for all 19 bioclimatic variables (from WorldClim) and land
cover data (from the FAO Land and Water Division.)
**Trait_Data_AllUngulates.csv** This file contains all trait data used in
the calculation of Gower's Distance. ## Sharing/Access Information
Other data (i.e. shp files for species ranges, protected areas boundaries)
used in this analysis is not posted in order to comply with policies on
reposting and/or redistribution of unmodified data, however, for more
details on these, please feel free to contact the corresponding author
(**Alex Cranston**) All data was derived from the following sources: 1.
Shapefiles for species' distributions (except rhinos) taken from:
IUCN. (2018). The IUCN Red List of Threatened Species (spatial data).
Version 2018-2 .
[
iucnredlist.org](
iucnredlist.org). Downloaded on
9 November 2021. Rhino distributions taken from Rookmaaker, K., &
Antoine, P.-O. (2012). New maps representing the historical and recent
distribution of the African species of rhinoceros: Diceros bicornis,
Ceratotherium simum and Ceratotherium cottoni. Pachyderm, 52, 91–96.
Retrieved from
[
pachydermjournal.org](
pachydermjournal.org). 2. Global Land Cover map taken from: Latham, J., Cumani, R., Rosati, I., & Bloise, M. (2014). FAO Global Land Cover (GLC-SHARE) Beta-Release 1.0 Database. FAO Land and Water Division. [
data.apps.fao.org](
data.apps.fao.org) 3. Bioclimatic variables taken from: Fick, S. E., & Hijmans, R. J. (2017). WorldClim 2: new 1-km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37(12), 4302-4315. [
doi.org](
doi.org) 4. Shapefiles for African protected areas taken from: UNEP-WCMC, & IUCN. Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online]. UNEP-WCMC and IUCN. Retrieved June 2022 from [www.protectedplanet.net](
protectedplanet.net) 5. Shapefiles for African biomes taken from: Dinerstein, E., Olson, D., Joshi, A., Vynne, C., Burgess, N. D., Wikramanayake, E., Hahn, N., Paminteri, S., Hedao, P., Noss, R., Hansen, M., Locke, H., Ellis, E. C., Jones, B., Barber, C. V., Hayes, R., Kormos, C., Martin, V., Crist, E., Sechrest, W., Price, L., Baillie, J. E. M., Weeden, D., Suckling, K., Davis, C., Sizer, N., Moore, R., Thau, D., Birch, T., Potapov, P.,Turubanova, S., Tyukavina, A., de Souza, N., Pintea, L., Brito, J. C., Llewellyn, O. A., Miller, A. G., Patzelt, A., Ghazanfar, S. A., Timberlake, J., Klser, H., Shennan-Farpn, Y., Kindt, R., Lilles, J. B., van Breugel, P., Graudal, L., Voge, M., Al-Shammari, K. F., & Saleem, M. (2017). An ecoregion-based approach to protecting half the terrestrial realm. BioScience, 67(6), 534-545. [
doi.org](
doi.org) 6. Trait data for body mass and body length taken from: Soria, C. D., Pacifici, M., Di Marco, M., Stephen, S. M., & Rondinini, C.. 2021. COMBINE: a coalesced mammal database of intrinsic and extrinsic traits. Ecology 102( 6):e03344. 10.1002/ecy.3344 7. Trait data on diet mostly taken from: Gagnon, M., Chew, A. E., (2000) Dietary Preferences in Extant African Bovidae, Journal of Mammalogy, 81(2), 490511,[
doi.org)081<0490:DPIEAB>2.0.CO;2](
doi.org)081<0490:DPIEAB>2.0.CO;2) 8. Additional trait data on diet estimated using Schlitter, D. A., Ferguson, A. W., & McDonough, M. M. (2014). Mammals of Africa (Vol. I-VI.). Journal of Mammalogy, 95(6), 1299-1303.999. 9. Additional trait on migratory behaviour taken from Abraham, J. O., Hempson, G. P., Faith, J. T., & Staver, A. C.(2022). Seasonal strategies differ between tropical and extratropical herbivores. Journal of Animal Ecology, 91, 681–692. [
doi.org](
doi.org)