- Species pool size and invasibility of island communities: a null mode…
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Species pool size and invasibility of island communities: a null model of sampling effects

  1. 1.
    0026842 - BÚ 2006 RIV GB eng J - Článek v odborném periodiku
    Herben, Tomáš
    Species pool size and invasibility of island communities: a null model of sampling effects.
    [Zásobník druhů a invasibilita ostrovních společenstev.]
    Ecology Letters. Roč. 8, - (2005), s. 909-917. ISSN 1461-023X. E-ISSN 1461-0248
    Grant CEP: GA ČR(CZ) GA206/04/0081
    Výzkumný záměr: CEZ:AV0Z60050516
    Klíčová slova: population growth rate * species pool * species sorting
    Kód oboru RIV: EF - Botanika
    Impakt faktor: 5.151, rok: 2005

    Here I examine whether differences in species pools can affect invasibility in a lottery model with pools of identical native and exotic species. While in a neutral model with all species identical, invasibility does not depend on the species pool, a model with non-zero variation in population growth rates predicts higher invasibility of communities of smaller pools. This is due to species sampling; drawing species from larger pools increases the probability that an assemblage will include fast growing species. Such assemblages are more likely to exclude random invaders. This constitutes a mechanism through which smaller species pools (such as those of isolated islands) can directly underlie differences in invasibility.

    Zásobník druhů ovlivňuje invasibilitu ostrovních společenstev.
    Trvalý link: http://hdl.handle.net/11104/0117012
     
Počet záznamů: 1  

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