(Phys.org) —Ants have long been known to choose the shortest of several routes to a food source, but what happens when the shortest route is not the fastest? This situation can occur, for example, when ants are forced to ...
Pacific oysters, non-native to the United States but farmed in the U.S. for aquaculture, are an invasive species. During the Pacific Blob heat wave in the mid-2010s, as sea temperatures in Washington state's Puget Sound rose ...
The Prussian carp is considered one of the most successful invasive fish species in Europe. Its ability to reproduce asexually gives it a major advantage over competing fish. An international research team has now managed ...
Ecology
Jul 19, 2022
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191
When tawny crazy ants move into a new area, the invasive species is like an ecological wrecking ball—driving out native insects and small animals and causing major headaches for homeowners. But scientists at The University ...
Plants & Animals
Mar 28, 2022
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Marine life hitching a ride on ocean-crossing ships poses a threat to Antarctica's pristine ecosystems, with the potential for invasive species to arrive from almost anywhere across the globe, say the authors of a new study.
Ecology
Jan 10, 2022
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624
Watching paint dry has nothing on watching a forest grow.
Ecology
Sep 6, 2021
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195
An Australian mammal thought to have been wiped out over 150 years ago can now be crossed off our list of extinct animals, following a new study.
Plants & Animals
Jun 28, 2021
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Disease-carrying mosquitoes, crop-ravaging rodents, forest-eating insects and even the domestic cat are all "exotic" intruders whose cost to humanity and the environment is vast and growing, according to a sweeping study ...
Ecology
Mar 31, 2021
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628
Some invasive species targeted for total eradication bounce back with a vengeance, especially in aquatic systems, finds a study led by the University of California, Davis.
Plants & Animals
Mar 15, 2021
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The damage caused by the catastrophic 2019-2020 Australian bushfires could lead to a dramatic jump in the number of native species at risk, according to new research.
Ecology
Jul 21, 2020
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109
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
