Functional diversity and redundancy of tropical forests shift with elevation and forest‐use intensity

Monge‐González, María Leticia; Guerrero‐Ramírez, Nathaly R.; Krömer, Thorsten; Kreft, Holger; Craven, Dylan

doi:10.1111/1365-2664.13955

Cited by 23 publications

(13 citation statements)

References 94 publications

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“…However, as we did not sample forest patches proportionately, we were not able to detect indirect sampling effects. This variability is consistent with a recent study on the interactive effects of elevation and anthropogenic activity on multiple facets of biodiversity of tropical forests in Mexico, which showed that the impacts of anthropogenic activity were inconsistent across elevations (Monge‐González et al, 2021).…”

Section: Discussionsupporting

confidence: 92%

Water and energy availability mediate biodiversity patterns along an elevational gradient in the tropical Andes

Tolmos

Kreft

Ramirez-Correa

et al. 2022

Journal of Biogeography

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Aim: How tree taxonomic and phylogenetic diversity vary with elevation at multiple spatial scales may provide new insights into the ecological and evolutionary processes influencing biogeographical patterns. The effect of water-and energy-related climatic variables on forests diversity across elevations, as well as how clades have evolved on and established across mountain regions lack consensus. Here, we tested whether changes in biodiversity with elevation are consistent with one of, or multiple, competing hypotheses: the water-energy dynamics (WED), species-energy relationship (SER), Tropical Niche Conservatism (TNC) and Out of The Tropics hypothesis (OTT). Location: Patia watershed, ColombiaTaxon: Seed plants (trees) Methods: We used a large dataset of 490 0.1 ha forest plots in nine elevational belts (545-3410 m a.s.l) that correspond to three different life zones, and quantified alpha and gamma scales using taxonomic and phylogenetic diversity indices. We fitted linear mixed-effects models to evaluate how taxonomic and phylogenetic alpha diversity changed with elevation, precipitation and aboveground biomass. We assessed taxonomic and phylogenetic beta diversity using the Sørensen index and its spatial turnover and nestedness components.Results: Taxonomic and phylogenetic alpha diversity decrease with elevation. Yet, at the gamma scale, taxonomic and phylogenetic diversity predominantly increased with elevation. Taxonomic and phylogenetic beta diversity were strongly influenced by species turnover, and followed a hump-shaped pattern with elevation.Main conclusions: Overall, diversity shows a decreasing trend at the local scale, while coarse-scale gamma diversity followed a pattern of nonlinear increases for both taxonomic and phylogenetic diversity. Evidence supports the influence of SER and WED on diversity patterns across elevations, yet neither evolutionary hypotheses had sufficient empirical support to be conclusive.

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Section: Discussionsupporting

confidence: 92%

Water and energy availability mediate biodiversity patterns along an elevational gradient in the tropical Andes

Tolmos

Kreft

Ramirez-Correa

et al. 2022

Journal of Biogeography

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“…The results of the correlation analysis also confirmed this result ( Figure S2 ). The observed mismatches between phylogenetic and functional diversity in the study might have also been due to nonrandom filtering of species with unfit traits ( Hacala et al., 2021 ; Monge-González et al., 2021 ). On the other hand, the taxonomic and functional plant diversity indices showed relatively strong positive correlations, suggesting that the community assemblages of mountain plants are ruled by functional differentiation ( Freitas et al., 2021 ; Vega-Álvarez et al., 2019 ).…”

Section: Discussionmentioning

confidence: 90%

“…The results of the correlation analysis also confirmed this result (Figure S2). The observed mismatches between phylogenetic and functional diversity in the study might have also been due to nonrandom filtering of species with unfit traits (Hacala et al, 2021;Monge-Gonzaĺez et al, 2021). On the other hand, the Model predictions (lines) with 95% confidence intervals for each q order (q = [0, 1, 2]) and plant diversity (taxonomic, functional and phylogenetic levels) along elevation gradient.…”

Section: Diversity Indicesmentioning

confidence: 90%

Assessing the effect of roads on mountain plant diversity beyond species richness

Luo

et al. 2022

Front. Plant Sci.

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A comprehensive understanding of the effects of mountain roads on plant diversity is critical to finding the most effective solutions for managing this particular driver. Little is known, however, about the simultaneous effects that road have on the multiple facets of biodiversity, although roads are considered to be one of the major disturbances in the Qionglai mountain range. In this study, we analyzed the impact of roads on the multiple facets of plant diversity (taxonomic, functional and phylogenetic diversity) in the study area using Hill numbers by comparing plant diversity between roadside and interior plots at the landscape scale, then, we used linear mixed models to analyze the effect of mountain roads on the multiple facets of plant diversity along an elevational gradient. The results showed that the roadside plots lacked 29.45% of the total number of species with particular functional traits (such as a relatively high specific leaf area (SLA), a relatively low leaf dry matter content (LDMC) and relatively old clades) and exclusively contained 14.62% of the total number of species. Compared with the interior community, the taxonomic, functional and phylogenetic diversity of roadside community decreased by no more than 26.78%, 24.90% and 16.62%, respectively. Taxonomic and functional diversity of dominant and common species showed greater changes to road disturbances, while rare species showed the greatest change in phylogenetic diversity. Taxonomic homogenization of roadside communities was accompanied by functional and phylogenetic homogenization. Additionally, the impact of roads on these three facets of plant diversity showed the characteristics of peak clipping along the elevation gradient. Our findings highlight the negative impact of roads on the taxonomic, functional and phylogenetic diversity of the Qionglai mountain range, as roads promote communities that are more similar in taxonomic, functional, and phylogenetic composition, and to a greater extent contributed to compositional evenness. These effects tend to be functionally and phylogenetically non-random, and species in some clades or with some functional traits are at higher risk of loss. Our results are important for the conservation and management of nature reserves, especially for local governments aiming to create new infrastructure to connect natural mountainous areas.

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“…Con respecto a la primera predicción relacionada con la composición y la dominancia de especies arbóreas, las pequeñas diferencias encontradas pueden estar asociadas, en parte, al manejo forestal. La menor dominancia en la AAF +50 puede deberse a que su composición es representativa de las selvas maduras, caracterizadas por una menor dominancia y mayor equidad de especies (Lebrija-Trejos et al, 2008;Monge-González et al, 2021). Asimismo, las diferencias en los usos de las dos especies más importantes en esta AAF, Bursera simaruba y Piscidida piscipula, podrían explicar los patrones de importancia relativa de estas especies en las áreas que sí fueron aprovechadas.…”

Section: Discussionunclassified

Diversidad arbórea y carbono almacenado en selvas bajo manejo forestal comunitario en Yucatán, México

Hurtado-Torres¹,

Dupuy

Montañez-Escalante

et al. 2022

MYB

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El manejo forestal comunitario sustentable favorece la economía de las comunidades rurales sin comprometer la capacidad de regeneración ni los servicios ecosistémicos que brindan las selvas, como el almacenamiento de carbono. Esta actividad ha sido ampliamente documentada en la Península de Yucatán, pero escasamente evaluada en el estado de Yucatán. En esta investigación se hizo una comparación de composición arbórea, estructura, diversidad y carbono almacenado en la biomasa aérea en tres áreas de selva mediana subcaducifolia con diferente tiempo de regeneración después de un aprovechamiento forestal en el ejido San Agustín (AAF1, AAF10 y AAF+50 años). En cada una se establecieron dos conglomerados conformados por cuatro parcelas circulares de 400 m2, en las que se identificaron y midieron (diámetro y altura) todos los árboles de diámetro mayor o igual a 7.5 cm. Se analizó la distribución de tamaños de los árboles, la diversidad de especies, su valor de importancia relativo y la biomasa aérea (a partir de ecuaciones alométricas). La especie más dominante fue Bursera simaruba y el AAF+50 presentó la menor dominancia. La distribución de clases diamétricas no varió entre las áreas de aprovechamiento y mostró un patrón de J invertida, lo cual sugiere un alto potencial de regeneración. La diversidad tampoco varió entre las áreas de aprovechamiento, mientras que el carbono almacenado en la biomasa aérea sí, siendo mayor en el AAF+50 (65.2 t /ha). Los resultados indican que el plan de manejo establecido por el ejido no ha afectado la diversidad arbórea ni su potencial de regeneración y permite un alto almacenamiento de carbono.

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Functional diversity and redundancy of tropical forests shift with elevation and forest‐use intensity

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 23 publications

References 94 publications

Water and energy availability mediate biodiversity patterns along an elevational gradient in the tropical Andes

Water and energy availability mediate biodiversity patterns along an elevational gradient in the tropical Andes

Assessing the effect of roads on mountain plant diversity beyond species richness

Diversidad arbórea y carbono almacenado en selvas bajo manejo forestal comunitario en Yucatán, México

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