Even environmentally conscious hikers are neglecting to clean their boots before heading for the mountains and thus may be introducing alien plants to the environment, according to a survey. “Visitors ...

There are approximately 27 000 indigenous species in South Africa and 9 000 foreign plant species that have been introduced over the past few centuries. Of these 9 000 exotic or alien introductions, ...

The spread of species beyond their native habitat is a human-made environmental change on a global scale. Among vascular plants, over 16,000 species have now permanently settled in foreign countries.

The beauty of the pink and purple carpets of digitalis flowers increasingly seen on hillsides in Japan conceals a potential menace to ecosystems and even human health. The flowers, which blossom in ...

Restoring natives to suburbia -- The vital new role of the suburban garden -- No place to hide -- Who cares about biodiversity? -- Why can't insects eat alien plants? -- What is native and what is not ...

Invasive species are reshaping ecosystems and local people's relationship with nature in the tropics, a study led by Danish researchers Ninad Avinash Mungi and Jens Christian Svenning from Aarhus ...