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Lessons from the establishment of exotic species: a meta‐analytical case study using birds
Author(s) -
CASSEY PHILLIP,
BLACKBURN TIM M.,
DUNCAN RICHARD P.,
LOCKWOOD JULIE L.
Publication year - 2005
Publication title -
journal of animal ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.134
H-Index - 157
eISSN - 1365-2656
pISSN - 0021-8790
DOI - 10.1111/j.1365-2656.2005.00918.x
Subject(s) - propagule pressure , biodiversity , ecology , scale (ratio) , introduced species , propagule , geography , event (particle physics) , environmental resource management , biology , cartography , demography , biological dispersal , environmental science , population , physics , quantum mechanics , sociology
Summary1 The establishment of species outside their natural geographical ranges is an important driver of changes in global biodiversity. This creates an imperative to understand why some species are more successful than others at establishing viable populations following introduction. 2 Historical data are particularly useful in this regard, and those for birds especially comprehensive. This has resulted in the publication of regional‐scale studies that have used these data to attempt to quantify relationships between establishment success and characteristics of bird introductions. 3 We use a meta‐analytical approach to summarize quantitatively the results of these studies, and to assess the influence of variables invoked to explain the variation in establishment success in birds. 4 We find that variables describing characteristics specific to the individual introduction event (i.e. event‐level variables), such as introduction effort (or ‘propagule pressure’), are the most consistent predictors of establishment success.