Convergent evolution of sunbird pollination systems of Impatiens species in tropical Africa and hummingbird systems of the New World

0447993 - BÚ 2016 RIV GB eng J - Článek v odborném periodiku
Janeček, Štěpán - Bartoš, Michael - Njabo, K. Y.
Convergent evolution of sunbird pollination systems of Impatiens species in tropical Africa and hummingbird systems of the New World.
Biological Journal of the Linnean Society. Roč. 115, č. 1 (2015), s. 127-133. ISSN 0024-4066. E-ISSN 1095-8312
Grant CEP: GA ČR(CZ) GAP505/11/1617
Institucionální podpora: RVO:67985939
Klíčová slova: Cameroon * co-evolution * pollination
Kód oboru RIV: EF - Botanika
Impakt faktor: 1.984, rok: 2015

In this study we focus on the pollination systems of the bird pollination syndrome Impatiens species on Mt. Cameroon, West Africa. We show that despite the high diversity of sunbirds on Mt. Cameroon, only Cyanomitra oritis appear to be important pollinator of all Impatiens species. This asymmetry indicates the absence of pair wise co-evolution and points to a diffuse co-evolutionary process resulting in guilds of highly specialized plants and birds; a situation well known from hummingbirds and specialized plant communities of the New World. Additionally, the herbaceous habits of Impatiens species, the frequent adaptations to pollination by hovering birds, and the habitat preference for understory in tropical forests or epiphytic growth, resemble the highly specialized Neotropical plants.
Trvalý link: http://hdl.handle.net/11104/0249752