* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Patterns of Biological Invasions
Survey
Document related concepts
Conservation biology wikipedia , lookup
Overexploitation wikipedia , lookup
Holocene extinction wikipedia , lookup
Biogeography wikipedia , lookup
Biodiversity wikipedia , lookup
Extinction debt wikipedia , lookup
Restoration ecology wikipedia , lookup
Biological Dynamics of Forest Fragments Project wikipedia , lookup
Ecological fitting wikipedia , lookup
Occupancy–abundance relationship wikipedia , lookup
Latitudinal gradients in species diversity wikipedia , lookup
Invasive species wikipedia , lookup
Reconciliation ecology wikipedia , lookup
Introduced species wikipedia , lookup
Habitat conservation wikipedia , lookup
Theoretical ecology wikipedia , lookup
Transcript
Patterns of Biological Invasions Public Lecture by Professor Erik Arndt (Anhalt University of Applied Sciences) Tuesday, 28 May 2013 at 1800 NBRR, Department of Biology University of Malta Attendance is free of charge. Anybody wishing to attend is kindly asked to contact Ms Michaela Stivala, at the Department of Biology, University of Malta. Tel: 2340 2272 Email: [email protected] Patterns of biological invasions Biological invasions describe range expansion of species in which the transport was mediated directly or indirectly by humans. "Invasive Alien Species" (IAS) are defined by the European Union as those that are, firstly, outside their natural area of distribution, and secondly, which threaten native biological diversity (EU 2008). The presentation will demonstrate the typical pattern of invasion (i.e. introduction; range expansion; establishment of an ecological equilibrium) and will examine which factors promote biological invasions. Colonisation by IAS are often accompanied by the extinction of native species, especially on islands. Extinction of species and alteration of whole ecosystems are the worst impacts of biological invasions. The presentation will address the question if all IAS affect native ecosystems and their species and will discuss pathways of invasion.