High proportion of smaller ranged hummingbird species coincides with ecological specialization across the Americas.

Autor:	Sonne J; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark jsonne@snm.ku.dk., Martín González AM; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark Pacific Ecoinformatics and Computational Ecology Lab, 1604 McGee Avenue, Berkeley, CA 94703, USA., Maruyama PK; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark Programa de Pós-Graduação em Ecologia, Universidade Estadual de Campinas (UNICAMP), Cx. Postal 6109, Campinas, SP 13083-865, Brazil., Sandel B; Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, Aarhus C 8000, Denmark., Vizentin-Bugoni J; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark Programa de Pós-Graduação em Ecologia, Universidade Estadual de Campinas (UNICAMP), Cx. Postal 6109, Campinas, SP 13083-865, Brazil., Schleuning M; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, Frankfurt (Main) 60325, Germany., Abrahamczyk S; Nees Institute of Plant Biodiversity, Meckenheimer Allee 170, Bonn 53115, Germany Institute of Systematic Botany, Zollikerstrasse, Zurich 107, Switzerland., Alarcón R; Biology Program, California State University Channel Islands, Camarillo, CA 93012, USA., Araujo AC; Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79070-900, Brazil., Araújo FP; Programa de Pós-Graduação em Ecologia, Universidade Estadual de Campinas (UNICAMP), Cx. Postal 6109, Campinas, SP 13083-865, Brazil., Mendes de Azevedo S Jr; Department of Biology, Rural Federal University of Pernambuco, Recife, Pernambuco, Brazil., Baquero AC; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark., Cotton PA; Marine Biology and Ecology Research Centre, Plymouth University, Plymouth PL4 8AA, UK., Ingversen TT; Dybbøl Bygade 73, Sønderborg 6400, Denmark., Kohler G; Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo 2936, Petrópolis, Manaus CEP 69080-971, Brazil., Lara C; Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Km 10.5 Autopista Tlaxcala-San Martín Texmelucan, San Felipe Ixtacuixtla, Tlaxcala 90120, Mexico., Guedes Las-Casas FM; Department of Zoology, Federal University of Pernambuco, Recife, Pernambuco, Brazil., Machado AO; Instituto de Biologia, Universidade Federal de Uberlândia -UFU, Uberlândia, Minas Gerais, Brazil., Machado CG; Laboratório de Ornitologia, Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia 44036-900, Brazil., Maglianesi MA; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, Frankfurt (Main) 60325, Germany Vicerrectoría de Investigación, Universidad Estatal a Distancia (UNED), San José, Costa Rica., Moura AC; Vicerrectoría de Investigación, Universidad Estatal a Distancia (UNED), San José, Costa Rica., Nogués-Bravo D; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark., Oliveira GM; Instituto Federal do Triângulo Mineiro, Campus Uberlândia, Uberlândia, Minas Gerais, Brazil., Oliveira PE; Instituto de Biologia, Universidade Federal de Uberlândia -UFU, Uberlândia, Minas Gerais, Brazil., Ornelas JF; Departamento de Biología Evolutiva, Instituto de Ecología AC, Carretera antigua aCoatepec 351, El Haya, Xalapa, Veracruz 91070, Mexico., Rodrigues Lda C; Laboratory of Ornithology, Department of Zoology, ICB, Minas Gerais Federal University, PO Box 486, Belo Horizonte, Minas Gerais 31270-901, Brazil., Rosero-Lasprilla L; Grupo de Investigación Biología para la Conservación, Escuela de Ciencias Biológicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia., Rui AM; Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Universidade Federal de Pelotas, Capao do Leao, Rio Grande do Sul, Brazil., Sazima M; Departamento de Biologia Vegetal, Universidade Estadual de Campinas (UNICAMP), Cx. Postal 6109, Campinas-SP 13083-970, Brazil., Timmermann A; Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, Aarhus C 8000, Denmark., Varassin IG; Laboratório de Ecologia Vegetal, Departamento de Botânica, Universidade Federal do Paraná, Curitiba, Paraná 81531-980, Brazil., Wang Z; Department of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, College of Urban and Environmental Sciences, Beijing 100871, People's Republic of China., Watts S; Landscape and Biodiversity Research Group, Department of Geographical and Environmental Sciences, University of Northampton, Avenue Campus, St George's Avenue, Northampton NN2 6JD, UK., Fjeldså J; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark., Svenning JC; Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, Aarhus C 8000, Denmark., Rahbek C; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark Imperial College London, Silwood Park Campus, Ascot, Berkshire SL5 7PY, UK., Dalsgaard B; Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen Ø 2100, Denmark.
Jazyk:	angličtina
Zdroj:	Proceedings. Biological sciences [Proc Biol Sci] 2016 Feb 10; Vol. 283 (1824).
DOI:	10.1098/rspb.2015.2512
Abstrakt:	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-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' 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. (© 2016 The Author(s).)
Databáze:	MEDLINE
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