Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Utilization and transfer of forest genetic resources by introduction of alien species.


Emerging needs for wood, non-wood forest products, different ecosystem services and research programs in the last two centuries have affected the transfer of forest genetic resources within and outside of their natural distribution area. The transfer of species to the new habitats outside their range of distribution involves the well - known risks - reduced growth and (or) dieback as a result of the low adaptive potential of the introduced species to the new environmental conditions. The methods of close and distant-intraspecific and interspecific hybridization have been applied together with the establishment and analysis of the provenance tests throughout the 20 th century in Serbia in order to provide a reliable assessment of the adaptive, productive and reproductive potential of the introduced species. The extensive establishment of the plantations for the production of timber for mechanical and chemical wood processing has been one of the main reasons for the introduction of alien species, especially conifers of Pinus, Picea, Pseudotsuga genera and the species of Populus and Salix genera. This paper deals with the attitude of the human population towards the introduction of alien species, their effects on native habitats and indirect influence on the progress of woody plant improvement.