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Invasions! Gassó, N. La
creixent amenaça de les invasions biològiques The growing threat of biological invasions Biological invasions are not novel but the acceleration and intensification of such human activities as global trade, tourism, and migration has been led to the intentional, or unintentional, transport of species to regions far from their natural habitats. Some of these species can become invasive, while others may have various ecological impacts; e.g., altering disturbance regimes, impairing ecosystem functionality, and/or threatening native biodiversity, thereby causing homogenization of Earth’s biota. Human economic wealth can also be affected by biological invasions. Thus, they are now regarded as a major component of global change. The difficulties in accurately predicting the fate of a given introduction has led to increased interest in identifying situations where the risk of invasion is particularly high. Biological invasions ecology is focused on identifying those traits and circumstances related to species success and regional invasion levels. |
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