Propagule pressure and environmental conditions interact to determine establishment success of an invasive plant species, glossy buckthorn (Frangula alnus), across five different wetland habitat types

Berg, J.A., Meyer, G.A. & Young, E.B. Biol Invasions (2016) 18: 1363. Brief Abstract.


Many invasive plant species are able to establish within a wide range of community types. This study aimed to investigate interactions between propagule pressure and environmental resistance to seedling recruitment of the invasive shrub, glossy buckthorn (Frangula alnus Mill.), over a range of wetland habitat types. Results showed that drier habitats supported more woody species and provided more raised hummock surfaces essential for successful buckthorn recruitment and establishment; and provides empirical evidence that environmental resistance can be overcome by higher propagule pressure.