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Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation

(2017) BIOGEOSCIENCES. 14(23). p.5313-5321
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Abstract
The Amazon and Congo basins are the two largest continuous blocks of tropical forest with a central role for global biogeochemical cycles and ecology. However, both biomes differ in structure and species richness and composition. Understanding future directions of the response of both biomes to environmental change is paramount. We used one elevational gradient on both continents to investigate functional and stoichiometric trait shifts of tropical forest in South America and Africa. We measured community-weighted functional canopy traits and canopy and topsoil delta N-15 signatures. We found that the functional forest composition response along both transects was parallel, with a shift towards more nitrogen-conservative species at higher elevations. Moreover, canopy and topsoil delta N-15 signals decreased with increasing altitude, suggesting a more conservative N cycle at higher elevations. This cross-continental study provides empirical indications that both South American and African tropical forest show a parallel response with altitude, driven by nitrogen availability along the elevational gradients, which in turn induces a shift in the functional forest composition. More standardized research, and more research on other elevational gradients is needed to confirm our observations.
Keywords
TROPICAL RAIN-FORESTS, NITROGEN ISOTOPE PATTERNS, LEAF ECONOMICS SPECTRUM, N-15 NATURAL-ABUNDANCE, BIOAVAILABLE NITROGEN, ALTITUDINAL TRANSECT, FOLIAR NITROGEN, CHEMICAL TRAITS, GLOBAL CHANGE, SOIL

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Chicago
Bauters, Marijn, Hans Verbeeck, Miro Demol, Stijn Bruneel, Cys Taveirne, Dries Van der Heyden, Landry Cizungu, and Pascal Boeckx. 2017. “Parallel Functional and Stoichiometric Trait Shifts in South American and African Forest Communities with Elevation.” Biogeosciences 14 (23): 5313–5321.
APA
Bauters, Marijn, Verbeeck, H., Demol, M., Bruneel, S., Taveirne, C., Van der Heyden, D., Cizungu, L., et al. (2017). Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation. BIOGEOSCIENCES, 14(23), 5313–5321.
Vancouver
1.
Bauters M, Verbeeck H, Demol M, Bruneel S, Taveirne C, Van der Heyden D, et al. Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation. BIOGEOSCIENCES. 2017;14(23):5313–21.
MLA
Bauters, Marijn, Hans Verbeeck, Miro Demol, et al. “Parallel Functional and Stoichiometric Trait Shifts in South American and African Forest Communities with Elevation.” BIOGEOSCIENCES 14.23 (2017): 5313–5321. Print.
@article{8540735,
  abstract     = {The Amazon and Congo basins are the two largest continuous blocks of tropical forest with a central role for global biogeochemical cycles and ecology. However, both biomes differ in structure and species richness and composition. Understanding future directions of the response of both biomes to environmental change is paramount. We used one elevational gradient on both continents to investigate functional and stoichiometric trait shifts of tropical forest in South America and Africa. We measured community-weighted functional canopy traits and canopy and topsoil delta N-15 signatures. We found that the functional forest composition response along both transects was parallel, with a shift towards more nitrogen-conservative species at higher elevations. Moreover, canopy and topsoil delta N-15 signals decreased with increasing altitude, suggesting a more conservative N cycle at higher elevations. This cross-continental study provides empirical indications that both South American and African tropical forest show a parallel response with altitude, driven by nitrogen availability along the elevational gradients, which in turn induces a shift in the functional forest composition. More standardized research, and more research on other elevational gradients is needed to confirm our observations.},
  author       = {Bauters, Marijn and Verbeeck, Hans and Demol, Miro and Bruneel, Stijn and Taveirne, Cys and Van der Heyden, Dries and Cizungu, Landry and Boeckx, Pascal},
  issn         = {1726-4170},
  journal      = {BIOGEOSCIENCES},
  keyword      = {TROPICAL RAIN-FORESTS,NITROGEN ISOTOPE PATTERNS,LEAF ECONOMICS SPECTRUM,N-15 NATURAL-ABUNDANCE,BIOAVAILABLE NITROGEN,ALTITUDINAL TRANSECT,FOLIAR NITROGEN,CHEMICAL TRAITS,GLOBAL CHANGE,SOIL},
  language     = {eng},
  number       = {23},
  pages        = {5313--5321},
  title        = {Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation},
  url          = {http://dx.doi.org/10.5194/bg-14-5313-2017},
  volume       = {14},
  year         = {2017},
}

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