rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    non sort: The
    title: role of parasitism and communities structure in resistance to invasion
    sub title: a modeling approach
  name:
    name part: Ramsayer, Johan.
    role:
      role term: creator
  name:
    name part: Poulin, Robert.
    role:
      role term: ths
  name:
    name part: Πανεπιστήμιο Αιγαίου Ελληνογαλλικό Πρόγραμμα Μεταπτυχιακών Σπουδών Διατήρηση της Βιοποικιλότητας
    name part: Σχολή Περιβάλλοντος.
  name:
    name part: Universite des sciences et techniques du Languedoc
  type of resource: text
  origin info:
    date issued: 2009
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: 37 σ. : πιν. ; 30 εκ.
  abstract: Invasions by exotic species are a major threat for biodiversity, understanding the processes which control communities vulnerability is essential for biodiversity preservation. Studies of the communities' susceptibility to invasions usually focus on the relationship between species richness and invasibility. However, the other component of communities' complexity, the connectance, as well as parasites whose complex life-cycles affect communities' structure, might also play a role. To explore these questions, we simulate invasions of stable communities, varying by their species richness, connectance, and the number of species used as hosts by a single parasite species : Food-webs are generated using a cascade-like model; the corresponding Lotka-Volterra systems are solved to get the communities equilibrium states; then invasion events are triggered. The success of invasions and their consequences : native species extinctions and change in community total biomass, are analyzed. Our results confirm that resistance to invasions increases with species richness, and show that complexity provides stability against invasion consequences. But conversely, communities harboring a parasite with a complex life-cycle tend to be more susceptible to invasions, and to post-invasion change in total biomass.
  note: Johan Ramsayer ; thesis supervisor: Robert Poulin.
  note: Ηλεκτρονική διάθεση μόνο λέξεων κλειδιών - περιλήψεων.
  note: Διατριβή (μεταπτυχιακή) – Πανεπιστήμιο Αιγαίου, Λέσβος, 2009.
  note: Βιβλιογραφία: σ. 12-14
  subject:
    topic: Biological invasions
  subject:
    topic: Food chains (Ecology)
  subject:
    topic: Resilience (Ecology)
  subject:
    topic: Biotic communities
  subject:
    topic: Parasitism
  subject:
    topic: Dissertations, Academic
    geographic: Greece
  classification: 577
  identifier: http://hdl.handle.net/11610/11679
  location:
    physical location: INST LESVOS 20100903
  location:
    physical location: INST LESVOS 20100903
  access condition: Ηλεκτρονική διάθεση μόνο λέξεων κλειδιών - περιλήψεων.
  record info:
    record content source: GR-MY-UA
    record creation date: 100903
    record identifier: 1/10149
    language of cataloging:
      language term: gre