Počet záznamů: 1
Species pool size and invasibility of island communities: a null model of sampling effects
- 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