globalchange  > 气候变化与战略
DOI: 10.1111/jbi.13759
论文题名:
Thermal niche traits of high alpine plant species and communities across the tropical Andes and their vulnerability to global warming
作者: Cuesta F.; Tovar C.; Llambí L.D.; Gosling W.D.; Halloy S.; Carilla J.; Muriel P.; Meneses R.I.; Beck S.; Ulloa Ulloa C.; Yager K.; Aguirre N.; Viñas P.; Jácome J.; Suárez-Duque D.; Buytaert W.; Pauli H.
刊名: Journal of Biogeography
ISSN: 3050270
出版年: 2020
卷: 47, 期:2
语种: 英语
英文关键词: climate change ; climate seasonality ; endemics ; mountains ; niche breadth ; thermal optimum
Scopus关键词: alpine environment ; biodiversity ; biogeography ; bootstrapping ; endemic species ; global warming ; mountain region ; niche breadth ; plant community ; seasonality ; tropical region ; Andes ; Tracheophyta
英文摘要: Aim: The climate variability hypothesis (CVH) predicts that locations with reduced seasonal temperature variation select for species with narrower thermal ranges. Here we (a) test the CVH by assessing the effect of latitude and elevation on the thermal ranges of Andean vascular plant species and communities, and (b) assess tropical alpine plants vulnerability to warming based on their thermal traits. Location: High tropical Andes. Taxon: Vascular plants. Methods: Temperature data for 505 vascular plant species from alpine communities on 49 summits, were extracted from 29,627 georeferenced occurrences. Species thermal niche traits (TNTs) were estimated using bootstrapping for: minimum temperature, optimum (mean) temperature and breadth (maximum-minimum). Plant community-weighted scores were estimated using the TNTs of their constituent species. CVH was tested for species, biogeographical species groups and communities. Vulnerability to global warming was assessed for species, biogeographical species groups and communities. Results: Species restricted to the equator showed narrower thermal niche breadth than species whose ranges stretch far from the equator, however, no difference in niche breadth was found across summits’ elevation. Biogeographical species groups distributed close to the equator and restricted to alpine regions showed narrower niche breadth than those with broader ranges. Community-weighted scores of thermal niche breadth were positively related to distance from equator but not to elevation. Based on their TNTs, species restricted to equatorial latitudes and plant communities dominated by these species were identified as the most vulnerable to the projected 1.5°C warming, due to a potentially higher risk of losing thermal niche space. Main conclusions: Our study confirms that the CVH applies to high tropical Andean plant species and communities, where latitude has a strong effect on the thermal niche breadth. TNTs are identified as suitable indicators of species’ vulnerability to warming and are suggested to be included in long-term biodiversity monitoring in the Andes. © 2019 The Authors. Journal of Biogeography published by John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159501
Appears in Collections:气候变化与战略

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作者单位: Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud -BIOMAS - Universidad de Las Américas (UDLA), Quito, Ecuador; Department of Ecosystem & Landscape Dynamics, Institute for Biodiversity & Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, Netherlands; Biodiversity Department - Consorcio para el Desarrollo Sostenible de la Ecorregión Andina (CONDESAN), Quito, Ecuador; Biodiversity Informatics & Spatial Analysis, Royal Botanic Gardens Kew, The Jodrell Laboratory, Kew, United Kingdom; Instituto de Ciencias Ambientales y Ecológicas, Universidad de los Andes, Mérida, Venezuela; Ministry for Primary Industries, Wellington, New Zealand; Instituto de Ecología Regional, Universidad Nacional de Tucumán, San Miguel de Tucuman, Argentina; Laboratorio de Ecofisiología, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador; Herbario Nacional de Bolivia, Museo Nacional de Historia Natural - Instituto de Ecología (UMSA), La Paz, Bolivia; Universidad Católica del Norte, San Pedro de Atacama, Chile; Missouri Botanical Garden, St. Louis, MO, United States; NASA Goddard Space Flight Center, New York, NY, United States; Biodiversity and Ecosystem Services Research Program, Universidad Nacional de Loja, Loja, Ecuador; Naturaleza y Cultura Internacional, Piura, Peru; Departamento de Biología, Unidad de Ecología y Sistemática (UNESIS), Pontificia Universidad Javeriana, Bogota, Colombia; Food and Agriculture Organization of the United Nations (FAO), Quito, Ecuador; Department of civil and environmental engineering, Imperial College London, London, United Kingdom; Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences, Vienna, Austria

Recommended Citation:
Cuesta F.,Tovar C.,Llambí L.D.,et al. Thermal niche traits of high alpine plant species and communities across the tropical Andes and their vulnerability to global warming[J]. Journal of Biogeography,2020-01-01,47(2)
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