首页|Woody plant taxonomic,functional,and phylogenetic diversity decrease along elevational gradients in Andean tropical montane forests:Environmental filtering and arrival of temperate taxa

Woody plant taxonomic,functional,and phylogenetic diversity decrease along elevational gradients in Andean tropical montane forests:Environmental filtering and arrival of temperate taxa

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Mountains are paramount for exploring biodiversity patterns due to the mosaic of topographies and climates encompassed over short distances.Biodiversity research has traditionally focused on taxonomic diversity when investigating changes along elevational gradients,but other facets should be considered.For first time,we simultaneously assessed elevational trends in taxonomic,functional,and phylogenetic diversity of woody plants in Andean tropical montane forests and explored their underlying ecological and evolutionary causes.This investigation covered four transects(traversing ca.2200 m a.s.l.)encom-passing 114 plots of 0.1 ha across a broad latitudinal range(ca.10°).Using Hill numbers to quantify abundance-based diversity among 37,869 individuals we observed a consistent decrease in taxonomic,functional,and phylogenetic diversity as elevation increased,although the decrease was less pronounced for higher Hill orders.The exception was a slight increase in phylogenetic diversity when dominant species were over-weighted.The decrease in taxonomic and functional diversity might be attributed to an environmental filtering process towards highlands,where the increasingly harsher conditions exclude species and functional strategies.Besides,the differences in steepness decrease between Hill orders suggest that rare species disproportionately contribute to functional diversity.For phylogenetic diversity the shifting elevational trend between Hill orders indicates a greater than previously considered influ-ence in central Andean highlands of tropical lowlands originated species with strong niche conservatism relative to distantly related temperate lineages.This could be explained by a decreasing presence and abundance of temperate,extratropical taxa towards the central Andes relative to northern or southern Andes,where they are more prevalent.

Altitudinal gradientsAndesEnvironmental filteringOut of the Tropical LowlandsFunctional rarityTropical Niche Conservatism

Guillermo Ba?ares-de-Dios、Manuel J.Macía、Gabriel Arellano、í?igo Granzow-de la Cerda、Julia Vega-álvarez、Itziar Arnelas、Carlos I.Espinosa、Norma Salinas、Luis Cayuela

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Departamento de Biología y Geología,Física y Química Inorgánica,Universidad Rey Juan Carlos,Calle Tulipán s/n,Móstoles,Madrid,ES-28933,Spain

Departamento de Biología,Área de Botánica,Universidad Autónoma de Madrid,Calle Darwin 2,Madrid,ES-28049,Spain

Centro de Investigación en Biodiversidad y Cambio Global(CIBC-UAM),Universidad Aut6noma de Madrid,Calle Darwin 2,Madrid,ES-28049,Spain

Ecology and Evolutionary Biology,University of Michigan,Ann Arbor,MI 48109,USA

Oikobit LLC,www.oikobit.com,Albuquerque,NM,87120,USA

Real Jardín Botánico-CSIC,Plaza Murillo 2,Madrid,ES-28014,Spain

Departamento de Biología Animal,Ecología,Parasitología,Edafología y Química Agrícola,Universidad de Salamanca,Calle Donantes de Sangre s/n,Salamanca,ES-37007,Spain

Departamento de Biodiversidad,Ecología y Evolución,Universidad Complutense de Madrid,Calle José Antonio Nováis 12,Ciudad Universitaria,ES-28040,Spain

Departamento de Ciencios Biológicas y Agropecuarias,Universidad Técnica Particular de Loja,A.P.11-01-608 Loja,Ecuador

Sección Química,Pontificia Universidad Católica del Perú,A.P.Lima 32,Lima,Peru

ECI,School of Geography and Environment,University of Oxford,OX1 3QY,Oxfordshire,United Kingdom

Instituto de Investigación en Cambio Global(IICG-URJC),Universidad Rey Juan Carlos,Calle Tulipán s/n,Móstoles,Madrid,ES-28933,Spain

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Spanish Ministry of EducationEscuela Internacional de Doctorado-Universidad Rey Juan Carlos(Doctor Internacional )(2017)Education and Research Department of Madrid Autonomous Region Government(REMED1NAL TE)Spanish Ministries of Economy and Competitiveness and Science and TechnologySpanish Ministries of Economy and Competitiveness and Science and TechnologySpanish Ministries of Economy and Competitiveness and Science and TechnologyCentro de Estudios de América Latina(CEAL)at Universidad Autónoma de Madrid and Banco Santandernational authorities:Ecuadornational authorities:Ecuadornational authorities:Perunational authorities:Bolivia

FPU14/05303S2018/EMT-4338CGL2013-45634-PCGL2016-75414-PPID2019-105064 GB-100MAE-DNB-CM-2015-0016N°001-2019-IC-FLO-FAU-DPAZCH-UPN-VS/MA001-2016-SERNANP-PNRA-JEFMDRAyMA-VBRFMA-DGBAP-UAPVS N°2869/08

2024

10.1016/j.pld.2024.03.005

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCD
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2024.46(4)
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