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

Guillermo Ba?ares-de-Dios ¹Manuel J.Macía ²Gabriel Arellano ³í?igo Granzow-de la Cerda ⁴Julia Vega-álvarez ⁵Itziar Arnelas ⁶Carlos I.Espinosa ⁷Norma Salinas ⁸Luis Cayuela⁹

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作者信息

1. Departamento de Biología y Geología,Física y Química Inorgánica,Universidad Rey Juan Carlos,Calle Tulipán s/n,Móstoles,Madrid,ES-28933,Spain
2. 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
3. Ecology and Evolutionary Biology,University of Michigan,Ann Arbor,MI 48109,USA;Oikobit LLC,www.oikobit.com,Albuquerque,NM,87120,USA
4. Real Jardín Botánico-CSIC,Plaza Murillo 2,Madrid,ES-28014,Spain;Departamento de Biología y Geología,Física y Química Inorgánica,Universidad Rey Juan Carlos,Calle Tulipán s/n,Móstoles,Madrid,ES-28933,Spain
5. Departamento de Biología Animal,Ecología,Parasitología,Edafología y Química Agrícola,Universidad de Salamanca,Calle Donantes de Sangre s/n,Salamanca,ES-37007,Spain
6. 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
7. Departamento de Ciencios Biológicas y Agropecuarias,Universidad Técnica Particular de Loja,A.P.11-01-608 Loja,Ecuador
8. 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
9. Departamento de Biología y Geología,Física y Química Inorgánica,Universidad Rey Juan Carlos,Calle Tulipán s/n,Móstoles,Madrid,ES-28933,Spain;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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Abstract

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.

Key words

Altitudinal gradients/Andes/Environmental filtering/Out of the Tropical Lowlands/Functional rarity/Tropical Niche Conservatism

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基金项目

Spanish Ministry of Education(FPU14/05303)

Escuela Internacional de Doctorado-Universidad Rey Juan Carlos(Doctor Internacional )(2017)()

Education and Research Department of Madrid Autonomous Region Government(REMED1NAL TE)(S2018/EMT-4338)

Spanish Ministries of Economy and Competitiveness and Science and Technology(CGL2013-45634-P)

Spanish Ministries of Economy and Competitiveness and Science and Technology(CGL2016-75414-P)

Spanish Ministries of Economy and Competitiveness and Science and Technology(PID2019-105064 GB-100)

Centro de Estudios de América Latina(CEAL)at Universidad Autónoma de Madrid and Banco Santander()

national authorities:Ecuador(MAE-DNB-CM-2015-0016)

national authorities:Ecuador(N°001-2019-IC-FLO-FAU-DPAZCH-UPN-VS/MA)

national authorities:Peru(001-2016-SERNANP-PNRA-JEF)

national authorities:Bolivia(MDRAyMA-VBRFMA-DGBAP-UAPVS N°2869/08)

出版年

2024

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)

CSTPCDCSCD

影响因子：0.617

ISSN：2096-2703

参考文献量2

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