Related topics: plants · invasive species

How climate change drives the spread of invasive plants

As the climate warms, the number of alien species on every continent is expected to increase 36% by 2050. Some alien species—that is, plants or animals that live outside their natural range—are invasive and can harm ecosystems ...

Invasive plant time bombs: A hidden ecological threat

Invasive plants can stay dormant for decades or even centuries after they have been introduced into an environment before rapidly expanding and wreaking ecological havoc, according to a new study led by the University of ...

Study finds drought fuels invasive species after wildfires

In a study recently published in the journal Ecology, University of California, Irvine scientists uncover the intricate dance between drought, wildfires and invasive species in Southern California's coastal sage scrub ecosystems.

Gardeners can help identify potentially invasive plants

The critical role of gardeners in identifying 'future invaders'—ornamental plants that could become invasive species—has been revealed by researchers from the University of Reading and the Royal Horticultural Society.

Examining a century of change in a New York City urban forest

There haven't been many long-term studies on urban forests, but data collected from the Thain Family Forest, which the New York Botanical Garden (NYBG) has been stewarding for more than a century, has provided an opportunity ...

Invasive rodent research may help protect Hawaiian forests

O'ahu, Hawaii, is an island rife with lush nature, expansive ocean views and, increasingly, invasive rodents. House mice, black rats and Pacific rats all have contributed to ecological destruction in Oʻahu's forests, and ...

page 1 from 35

Invasive species

Invasive species is a phrase with several definitions. The first definition expresses the phrase in terms of non-indigenous species (e.g. plants or animals) that adversely affect the habitats they invade economically, environmentally or ecologically. It has been used in this sense by government organizations as well as conservation groups such as the IUCN (International Union for Conservation of Nature).

The second definition broadens the boundaries to include both native and non-native species that heavily colonize a particular habitat.

The third definition is an expansion of the first and defines an invasive species as a widespread non-indigenous species. This last definition is arguably too broad as not all non-indigenous species necessarily have an adverse effect on their adopted environment. An example of this broader use would include the claim that the common goldfish (Carassius auratus) is invasive. Although it is common outside its range globally, it almost never appears in harmful densities.

Because of the ambiguity of its definition, the phrase invasive species is often criticized as an imprecise term within the field of ecology. This article concerns the first two definitions; for the third, see introduced species.

This text uses material from Wikipedia, licensed under CC BY-SA