New research shows invasive species are reducing insect populations worldwide and weakening ecosystems people rely on.

Insects are often seen as invaders due to high-profile species like the yellow-legged (Asian) hornet, the harlequin ladybird ...

Clearing water-guzzling and soil-damaging alien invasive plants costs South Africa several hundred million rands every year.

Insects are often seen as invaders due to high-profile species like the yellow-legged (Asian) hornet, the harlequin ladybird ...

Effective management of invasive alien vegetation is one of the most critical ways to protect South Africa’s natural water sources. According to WWF South Africa’s Water Gains Calculator Tool, in 2025 ...

Erik Irmer has been documenting the spread of invasive plant and animal species that disrupt native ecology across Europe. He focuses on humans’ interactions with these plants and animals. Aliens is p ...