Desert biodiversity conservation and challenges

Alaaeldin Soultan, Swiss Ornithological Institute

July 18, 2025 | 15h30 | Hybrid Seminar (Zoom Link: https://videoconf-colibri.zoom.us/j/99797933081)

The Sahara and Arabian Deserts, collectively the largest warm desert region on Earth, encompass approximately 17% of the planet’s total landmass. Despite their vast expanse, these deserts have historically been overlooked by conservation communities. However, they are home to roughly one-quarter of the world’s terrestrial vertebrate fauna, many of which are endemic species uniquely adapted to survive in harsh environmental conditions. The biodiversity patterns of these desert ecosystems have been profoundly influenced by the long-term biogeographical connectivity between Africa and Asia, which facilitated significant faunal interchange over millennia. This historical dynamic has shaped the unique assemblage of species found in the region today. This presentation will explore how climate change is expected to alter the distribution ranges of desert species and the implications of these changes for the conservation of endemic mammals. Using case studies, the talk will highlight key ecological and conservation projects aimed at preserving desert biodiversity. For instance, it will examine habitat selection patterns of the Dorcas gazelle (Gazella dorcas), an iconic desert-adapted ungulate, and the conservation efforts targeting the endemic Sinai Baton Blue butterfly (Pseudophilotes sinaicus), one of the world’s smallest butterflies. Finally, the presentation will address the multifaceted challenges facing biodiversity conservation in desert habitats. These include limited resources for conservation initiatives, increasing anthropogenic pressures, and the compounding effects of climate change on already fragile ecosystems. By shedding light on these issues, this talk aims to highlight the urgent need for greater attention and action toward conserving the unique biodiversity of desert regions.

More information here