Mapping potential connections between Southern Africa's elephant populations.

Journal Article (Review;Journal Article)

Southern Africa spans nearly 7 million km2 and contains approximately 80% of the world's savannah elephants (Loxodonta africana) mostly living in isolated protected areas. Here we ask what are the prospects for improving the connections between these populations? We combine 1.2 million telemetry observations from 254 elephants with spatial data on environmental factors and human land use across eight southern African countries. Telemetry data show what natural features limit elephant movement and what human factors, including fencing, further prevent or restrict dispersal. The resulting intersection of geospatial data and elephant presences provides a map of suitable landscapes that are environmentally appropriate for elephants and where humans allow elephants to occupy. We explore the environmental and anthropogenic constraints in detail using five case studies. Lastly, we review all the major potential connections that may remain to connect a fragmented elephant metapopulation and document connections that are no longer feasible.

Full Text

Duke Authors

Cited Authors

  • Huang, RM; van Aarde, RJ; Pimm, SL; Chase, MJ; Leggett, K

Published Date

  • January 2022

Published In

Volume / Issue

  • 17 / 10

Start / End Page

  • e0275791 -

PubMed ID

  • 36219597

Pubmed Central ID

  • PMC9553058

Electronic International Standard Serial Number (EISSN)

  • 1932-6203

International Standard Serial Number (ISSN)

  • 1932-6203

Digital Object Identifier (DOI)

  • 10.1371/journal.pone.0275791

Language

  • eng