How do distinct facets of tree diversity and community assembly respond to environmental variables in the subtropical Atlantic Forest?

被引:5
|
作者
Klipel, Joice [1 ]
Bergamin, Rodrigo Scarton [1 ,2 ,3 ]
Cianciaruso, Marcus Vinicius [4 ]
da Silva, Ana Carolina [5 ]
Jurinitz, Cristiane Follmann [6 ]
Jarenkow, Joao Andre [7 ]
Bordin, Kauane Maiara [1 ]
Molz, Martin [8 ]
Higuchi, Pedro [5 ]
Picolotto, Rayana Caroline [1 ]
Debastiani, Vanderlei Julio [9 ]
Muller, Sandra Cristina [1 ]
机构
[1] Univ Fed Rio Grande Do Sul, Dept Ecol, Lab Ecol Vegetal LEVEG, Programa Posgrad Ecol, Ave Bento Goncalves 9500, Porto Alegre, RS, Brazil
[2] Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, England
[3] Univ Birmingham, Birmingham Inst Forest Res BIFoR, Birmingham, England
[4] Univ Fed Goias, Dept Ecol, Goiania, Brazil
[5] Univ Estado Santa Catarina, Ctr Ciencias Agrovet, Dept Engn Florestal, Lages, Brazil
[6] Pontificia Univ Catolica Rio Grande Do Sul PUCRS, Escola Ciencias Saude & Vida, Porto Alegre, Brazil
[7] Univ Fed Rio Grande Do Sul, Dept Bot, Lab Ecol Vegetal & Fitogeog, Porto Alegre, Brazil
[8] Museu Ciencias Nat SEMA RS, Porto Alegre, Brazil
[9] Univ Fed Rio Grande Do Sul, Dept Ecol, Lab Ecol Quantitat, Programa Posgrad Ecol, Porto Alegre, Brazil
来源
ECOLOGY AND EVOLUTION | 2023年 / 13卷 / 07期
关键词
altitude; biodiversity; community trait composition; functional traits; precipitation; soil variables; species richness; FUNCTIONAL TRAITS; PHYLOGENETIC STRUCTURE; SEED MASS; PLANT-COMMUNITIES; BETA DIVERSITY; SOIL FERTILITY; PATTERNS; COEXISTENCE; MECHANISMS; CLIMATE;
D O I
10.1002/ece3.10321
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
This study assessed the impact of altitude, precipitation, and soil conditions on species richness (SR), phylogenetic diversity (PD), and functional diversity (FD) standardized effect sizes in subtropical Brazilian Atlantic Forest tree communities. We considered specific trait information (FDs) for FD, reflecting recent adaptive evolution, contrasting with deeper phylogenetic constraints in FD. Three functional traits (leaf area-LA, wood density-WD, and seed mass-SM) were examined for their response to these gradients. Generalized least squares models with environmental variables as predictors and diversity metrics as response variables were used, and a fourth-corner correlation test explored trait-environmental relationships. SR decreased with altitude, while PD increased, indicating niche convergence at higher altitudes. Leaf area and seed mass diversity also decreased with altitude. For LA, both FD and FDs were significant, reflecting filtering processes influenced by phylogenetic inheritance and recent trait evolution. For SM, only the specific trait structure responded to altitude. LA and SM showed significant trait-environmental relationships, with smaller-leaved and lighter-seeded species dominant at higher altitudes. Soil gradients affect diversity. Fertile soils have a wider range of LA, indicating coexistence of species with different nutrient acquisition strategies. WD variation is lower for FDs. SM diversity has different relationships with soil fertility for FDs and FD, suggesting phylogeny influences trait variation. Soil pH influences WD and LA under acidic soils, with deeper phylogenetic constraints (FD). Environmental factors impact tree communities, with evidence of trait variation constraints driven by conditions and resources. Subtropical Atlantic forests' tree assemblies are mainly influenced by altitude, pH, and soil fertility, selecting fewer species and narrower trait spectra under specific conditions (e.g., higher altitudes, pH). Functional diversity patterns reflect both phylogenetic and recent evolution constraints, with varying strength across traits and conditions. These findings highlight the intricate processes shaping long-lived species assembly across diverse environments in the Southern Brazilian Atlantic Forest.
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页数:13
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