000			01728nab a22002657a 4500
003			EC-PaCDF
005			20200228110932.0
008			170306t20172017xxu|||||||||||||||||eng||
040			_aEC-PaCDF _bspa _cEC-PaCDF
041			_aeng
082	0	4	_223 _a333.9523
100	1		_aSeebens, Hanno _eautor
245	1	3	_aNo saturation in the accumulation of alien species worldwide / _cHanno Seebens.
260			_c2017.
300			_a1-9 p.
520	0		_aAlthough research on human-mediated exchanges of species has substantially intensified during the last centuries, we know surprisingly little about temporal dynamics of alien species accumulations across regions and taxa. Using a novel database of 45,813 first records of 16,926 established alien species, we show that the annual rate of first records worldwide has increased during the last 200 years, with 37% of all first records reported most recently (1970–2014). Inter-continental and inter-taxonomic variation can be largely attributed to the diaspora of European settlers in the nineteenth century and to the acceleration in trade in the twentieth century. For all taxonomic groups, the increase in numbers of alien species does not show any sign of saturation and most taxa even show increases in the rate of first records over time. This highlights that past efforts to mitigate invasions have not been effective enough to keep up with increasing globalization.
546			_aInglés
653			_aAlien species.
653			_aEspecies exóticas.
653			_aSaturation.
653			_aSaturación.
773	0		_gVol. 8, No. 14435 (Feb 2017), p. 1-9. _tNature Communications.
856	4	0	_uhttp://dx.doi.org/10.1038/ncomms14435
942			_2ddc _cARTICLE
999			_c12981 _d12981