Programme

  • 08:30-09:00
    Arrival
  • 09:00-09:30
    Welcome and Introductions
  • 09:30-10:00
    Tim Blackburn: Following birds along the invasion pathway

    Human-mediated species invasions are a major component of environmental change, and there is a pressing need to understand the process by which a species becomes invasive. In that regard, many important insights have come from the study of exotic birds. There are >700 known exotic bird populations (>200 species), and the quality of information available for exotic (and native) birds means that we can explore causes of invasion better in birds than in any taxon. The process through which a species has to pass to become an invader is typically divided into four stages: transport, release, establishment, and spread. In this talk, I will consider what we know about the causes of success at each of these invasion stages for birds. I will discuss how the invasion process should be studied in an ideal world, and then what such studies tell us about avian invasions. I will try to highlight common themes and gaps in our knowledge, and where possible I will compare the conclusions obtained from birds with what we know about invasions by other taxa.

  • 10:00-10:30
    Discussion
  • 10:30-11:00
    Tea break
  • 11:00-11:20
    Phill Cassey: Introduced birds in New Zealand: Lessons from a land of exotics

    The acclimatisation societies of New Zealand were among the most active in the British Empire with the aim of “the introduction, acclimatization and domestication of all animal, birds, fishes, and plants, whether useful or ornamental”. Their result being, that at least 120 bird species were introduced to New Zealand, of which 34 succeeded in establishing exotic populations. The quality of records that were maintained by these societies and subsequently summarised in the secondary literature has meant that this dataset is one of the most highly analysed for any single regional set of an exotic taxon. The influence that this dataset has had on the study of exotic birds is profound. I will discuss how representative the particular set of birds introduced to New Zealand is for other regions and how ongoing studies from New Zealand can help inform future research and management of invasive birds generally.

  • 11:20-11:35
    Discussion
  • 11:35-11:55
    Les Underhill: Range changes for introduced bird species as suggested by sabap1 and sabap2
  • 11:55-12:10
    Discussion
  • 12:10-12:30
    Cang Hui: Dispersal of starlings in Britain and South Africa
  • 12:30-12:45
    Discussion
  • 12:45-13:40
    Lunch and group photos
  • 13:40-14:00
    Berndt van Rensburg: The distribution and spread of the invasive alien common myna in southern Africa
  • 14:00-14:15
    Discussion
  • 14:15-14:35
    Louise Stafford: Control of the Indian House Crow in the City of Cape Town (ML Stafford & M Tafeni)

    The Cape Town House Crow population established itself in the early 1980ís and increased to approximately 10,000 in November 2008. Various attempts to control the population failed mainly as a result of unsustainable funding and opposition from the National Society for the Prevention of Cruelty to Animals. Reports of attacks on residents in the informal settlements and on learners during school breaks became more frequent. When reports of these attacks appeared in the media, the city leadership realized the need to act and committed to fund the control programme. In this talk I will discuss the management strategies, the control methods and results since the restart of house crow control programme in December 2009.

  • 14:35-14:50
    Discussion
  • 14:50-15:20
    Tea break
  • 15:20-15:40
    Cecile Berthouly-Salazar: Understanding population dynamics of invasive birds: a landscape genetics approach
  • 15:40-16:00
    Discussion
  • 16:00-17:00
    Group discussion on research approach, questions and trends