Invasion ecology was established as a science of invasion of animals and plants in the beginning of the second half of the 20th century by English ecologist Charles Sutherland Elton (1900-1991). Rapid development of the field of ecology is evident since the end of last century and following decades of 21st century. The paper deals with current development, diversity of concepts and hypotheses, including critiques of invasion terminology, invasion species concepts, introduced species as bad species and xenophobe appeared related to aliens as invaders. Invasion biology was an attempt to integrate alien animals and plants research into one science. In last decade new science of invasions is developed, characterised by multi- and interdisicplinarity, supported by social and economy sciences. To facilitate generalisations, and to improve the link between science, policy, and management, numerous frameworks have been developed in an attempt to unify different concepts and definitions.
New science policy minister for the Netherlands
