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Areas of high conservation value in Georgia: present and future threats by invasive alien plants

Thalmann, Daniela ; Kikodze, David ; Khutsishvili, Manana ; Kharazishvili, David ; Guisan, Antoine ; Broennimann, Olivier ; Müller-Schärer, Heinz

In: Biological Invasions, 2015, vol. 17, no. 4, p. 1041-1054

Cytotypes of Centaurea stoebe found to differ in root growth using growth pouches

Collins, Alexandra R. ; Thalmann, Daniela ; Müller-Schärer, Heinz

In: Weed Research, 2013, p. -

Centaurea stoebe is native to Europe and Western Asia and was introduced into North America in the late 19th century, where it has become highly invasive. In its native range, C. stoebe occurs in two cytotypes, namely diploids (2n = 18) and tetraploids (2n = 36), but only the tetraploid form has been identified in the invaded range. We used special growth pouches to determine whether diploid and...