Controls on pathogen species richness in plants’ introduced and native ranges: roles of residence time, range size and host traits

0365031 - BÚ 2012 RIV GB eng J - Journal Article
Mitchell, C. E. - Blumenthal, D. - Jarošík, Vojtěch - Puckett, E. E. - Pyšek, Petr
Controls on pathogen species richness in plants’ introduced and native ranges: roles of residence time, range size and host traits.
Ecology Letters. Roč. 13, č. 12 (2010), s. 1525-1535. ISSN 1461-023X. E-ISSN 1461-0248
R&D Projects: GA MŠMT LC06073
Grant - others:European Union(XE) KBBE-212459
Institutional research plan: CEZ:AV0Z60050516
Keywords : enemy release * plant invasions * biogeographical comparison
Subject RIV: EF - Botanics
Impact factor: 15.253, year: 2010

We analyzed fungal and viral pathogen species richness on 124 plant species in both their native European range and introduced North American range. Hosts introduced 400 years ago supported six times more pathogens than those introduced 40 years ago. In hosts’ native range, pathogen richness was greater on hosts occurring in more habitat types, with a history of agricultural use, and adapted to greater resource supplies. In hosts’ introduced range, pathogen richness was correlated with host geographic range size, agricultural use, and time since introduction, but not any measured biological traits. Introduced species have accumulated pathogens at rates that are slow relative to most ecological processes, and contingent on geographic and historic circumstance.
Permanent Link: http://hdl.handle.net/11104/0200371