Identification Handbook for non native tree species in the Alpine Space

Ljubljana

2022

208 S.

Monographie

978-3-903258-38-9

18116BU

40002786

Non-native trees are sometimes also referred to as “aliens” or as “introduced” or “exotic” trees. Those are tree species growing outside their native range or ecotype. Trees are classified as “native” only if they grow within an area in which they traditionally occurred prior to the introduction – wether intentional or unintentional. Climate change and human activity represent major threats to the ecosystems in the Alpine space. Adaptation efforts are therefore required to respond to negative effects on the Alpine environment, economy, and society. Originating in environments with warmer and dryer conditions, non-native tree species can support the adaptation of European forests and urban areas to climate change. The expected benefits and potential risks of the use of non-native trees for the regions of the Alpine space have polarized the opinions of experts and citizens. Benefits include adaptation to climate change, contributions to bioeconomy, urban and peri-urban green infrastructure, and mitigation of natural hazards, while risks include invasiveness by non-native tree species and their effects on native biodiversity. The distinction between non-native and native is important because some non-native tree species are considered invasive and can alter the ecosystem of the area they grow in. Observing nature and being able to identify potentially invasive species can help to better evaluate the dissemination of non-native species and their invasiveness in forests and cities. The Interreg-funded ALPTREES project is dedicated to investigating the opportunities and risks that non-native tree species provide for the future of our urban und forest areas as well as developing guidelines for their use and management within the Alpine space.Inhalt: Abies bornmuelleriana (Mattf.); Abies cephalonica Loudon; Abies grandis (Douglas ex D. Don) Lindley; Abies nordmanniana (Steven) Spach; Acer negundo L.; Acer saccharinum L.; Acer tataricum L.; Aesculus x carnea Zeyh.; Ailanthus altissima (Mill.) Swingle; Alnus cordata (Loisel.); Broussonetia papyrifera Vent.; Catalpa bignonioides Walt; Catalpa ovata G. Don; Cedrus deodara (Roxb.) G.Don; Cedrus libani A.Rich.; Chamaecyparis lawsoniana; Corylus colurna L. ; Cupressus sempervirens L.; Fraxinus pennsylvanica Marshall; Ginkgo biloba L.; Gleditsia triacanthos L.; Juglans nigra L.; Koelreuteria paniculata Laxm.; Larix kaempferi (Lamb.) Carr .; Liquidambar styraciflua L.; Liriodendron tulipifera L.; Magnolia grandiflora L.; Magnolia x soulangeana Soul.-Bod.; Paulownia tomentosa (Thunb.) Steud.; Picea omorika (Pančič) Purkyne; Picea pungens Engelm.; Picea sitchensis (Bong.) Carr.; Pinus strobus L.; Pinus wallichiana A. B. Jacks.; Platanus x acerifolia (Aiton) Willd.; Populus x canadensis Moench Prunus cerasifera Ehrh.; Prunus serotina Ehrh.; Prunus serrulata Lindl.; Pseudotsuga menziesii (Mirb.) Franco; Quercus coccinea Münchh.; Quercus rubra L.; Quercus suber L.; Rhus typhina L.; Robinia pseudoacacia L.; Styphnolobium japonicum (L.) Schott; Thuja occidentalis (L.); Tsuga canadensis (L.) Carr.; Ulmus pumila L.