Latitudinal and altitudinal patterns of plant community diversity on mountain summits across the tropical Andes

Simple item page
dc.careerCiencias Biológicases
dc.category.authoraddeden_US
dc.contributor.authorMuriel Mera, Erika Priscila
dc.contributor.correspondingMuriel Mera, Erika Priscila
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:40:14Z
dc.date.available2023-11-04T21:40:14Z
dc.date.issued2016-11-10
dc.dedication.authorTCes
dc.description.abstractThe high tropical Andes host one of the richest alpine floras of the world, with exceptionally high levels of endemism and turnover rates. Yet, little is known about the patterns and processes that structure altitudinal and latitudinal variation in plant community diversity. Herein we present the first continental-scale comparative study of plant community diversity on summits of the tropical Andes. Data were obtained from 792 permanent vegetation plots (1m2) within 50 summits, distributed along a 4200 km transect; summit elevations ranged between 3220 and 5498 m.a.s.l. We analyzed the plant community data to assess: (1) differences in species abundance patterns in summits across the region, (2) the role of geographic distance in explaining floristic similarity, and (3) the importance of altitudinal and latitudinal environmental gradients in explaining plant community composition and richness. On the basis of species abundance patterns, our summit communities were separated into two major groups: Puna and Páramo. Floristic similarity declined with increasing geographic distance between study-sites, the correlation being stronger in the more insular Páramo than in the Puna (corresponding to higher species turnover rates within the Páramo). Ordination analysis (CCA) showed that precipitation, maximum temperature and rock cover were the strongest predictors of community similarity across all summits. Generalized Linear Model (GLM) quasi-Poisson regression indicated that across all summits species richness increased with maximum air temperature and above-ground necromass and decreased on summits where scree was the dominant substrate. Our results point to different environmental variables as key factors for explaining vertical and latitudinal species turnover and species richness patterns on high Andean summits, offering a powerful tool to detect contrasting latitudinal and altitudinal effects of climate change across the tropical Andes.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1713388617
dc.id.type1
dc.identifier.doihttps://doi.org/10.1111/ecog.02567
dc.identifier.issn1600-0587
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/5806
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/ecog.02567
dc.indexed.databaseScimago Journal Rankes
dc.language.isoen
dc.list.authorsCuesta, F., Muriel, P., Llambí, D., Halloy, S., Aguirre, N., Beck, S., Carilla, J., Meneses, R., Cuello, S., Grau, A., Gámez, L., Irazábal, J., Jácome, J., Jaramillo, R., Ramírez, L., Samaniego, N., Suárez, D., Thompson, et al.
dc.magazine.pageRange1381-1394
dc.magazine.titleEcographyen_US
dc.magazine.volumeChapter40(12)
dc.rightsClosedAccessen
dc.stateaccepteden_US
dc.subjectBotánicaes
dc.subjectBiodiversidades
dc.subjectRegión andinaes
dc.subjectBotánica
dc.subjectBiodiversidad
dc.subjectRegión andina
dc.titleLatitudinal and altitudinal patterns of plant community diversity on mountain summits across the tropical Andesen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Latitudinal and altitudinal patterns of plant communit.pdf
Size:
435.06 KB
Format:
Adobe Portable Document Format
Download
Collections
Artículos en revistas científicas indexadas (Journals)