@article {34448,
	title = {High proportion of smaller ranged hummingbird species coincides with ecological specialization across the Americas},
	journal = {Proceedings of the Royal Society of London B: Biological Sciences},
	volume = {283},
	number = {1824},
	year = {2016},
	month = {2016-02-10 00:00},
	pages = {20152512},
	abstract = {Ecological communities that experience stable climate conditions have been speculated to preserve more specialized interspecific associations and have higher proportions of smaller ranged species (SRS). Thus, areas with disproportionally large numbers of SRS are expected to coincide geographically with a high degree of community-level ecological specialization, but this suggestion remains poorly supported with empirical evidence. Here, we analysed data for hummingbird resource specialization, range size, contemporary climate, and Late Quaternary climate stability for 46 hummingbird{\textendash}plant mutualistic networks distributed across the Americas, representing 130 hummingbird species (ca 40\% of all hummingbird species). We demonstrate a positive relationship between the proportion of SRS of hummingbirds and community-level specialization, i.e. the division of the floral niche among coexisting hummingbird species. This relationship remained strong even when accounting for climate, furthermore, the effect of SRS on specialization was far stronger than the effect of specialization on SRS, suggesting that climate largely influences specialization through species\&$\#$039; range-size dynamics. Irrespective of the exact mechanism involved, our results indicate that communities consisting of higher proportions of SRS may be vulnerable to disturbance not only because of their small geographical ranges, but also because of their high degree of specialization.},
	author = {Sonne, Jesper and Mart{\'\i}n Gonz{\'a}lez, Ana M. and Maruyama, Pietro K. and Sandel, Brody and Jeferson Vizentin-Bugoni and Schleuning, Matthias and Stefan Abrahamczyk and Ruben Alarc{\'o}n and Andr{\'e}a C. Araujo and Francielle P. Ara{\'u}jo and Mendes de Azevedo, Severino and Andrea C. Baquero and Peter A. Cotton and Tanja Toftemark Ingversen and Glauco Kohler and Carlos Lara and Flor Maria Guedes Las-Casas and Adriana O. Machado and Caio Graco Machado and Mar{\'\i}a Alejandra Maglianesi and Alan Cerqueira Moura and Nogu{\'e}s-Bravo, David and Genilda M. Oliveira and Paulo E. Oliveira and Juan Francisco Ornelas and Licl{\'e}ia da Cruz Rodrigues and Liliana Rosero-Lasprilla and Rui, Ana Maria and Marlies Sazima and Allan Timmermann and Varassin, Isabela Galarda and Wang, Zhiheng and Stella Watts and Fjelds{\r a}, Jon and Svenning, Jens-Christian and Rahbek, Carsten and Dalsgaard, Bo}
}
