Distribution of functional traits in subtropical trees across environmental and forest use gradients

Blundo, Cecilia; Malizia, Lucio R.; González‐Espinosa, Mario

doi:10.1016/j.actao.2015.09.008

Cited by 16 publications

(14 citation statements)

References 52 publications

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“…The observed relationship between local abundance and niche breadth was not significantly different than expected from the null model in all three regions [Colour figure can be viewed at wileyonlinelibrary.com] the Bolivian Amazon (c. 593 m) and Missouri Ozarks (c. 295 m). In addition, plots in the Argentinian Andes are located across two mountain ranges, in which climate varies strongly among sites (Blundo et al, 2016) and included some early-successional forests comprised of tree species with functional traits related to resource acquisition in disturbed habitats (Blundo, Malizia, & González-Espinosa, 2015).…”

Section: Discussionmentioning

confidence: 99%

Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

Díaz

Blundo

Cayola

et al. 2020

Global Ecol Biogeogr

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Aim: Ecological niches shape species commonness and rarity, yet, the relative importance of different niche mechanisms within and across ecosystems remains unresolved. We tested the influence of niche breadth (range of environmental conditions where species occur) and niche position (marginality of a species' environmental distribution relative to the mean environmental conditions of a region) on tree-species abundance and occupancy across three biogeographic regions.

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Section: Discussionmentioning

confidence: 99%

Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

Díaz

Blundo

Cayola

et al. 2020

Global Ecol Biogeogr

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“…(2017) reported that high plot‐mean WSG increases AGB gain, and they argue that high stand‐level WSG indicates dominance of shade‐tolerant trees with less volumetric growth. In premontane forests, tree species with high WSG and high rates of DBH growth are canopy dominants (e.g., Anadenanthera colubrina , Myracrodruon urundeuva, and Myroxylon peruiferum , Blundo et al., 2015). Our results suggest that the main determinants of AGB dynamics (gain and loss rates) are abiotic variables (e.g., MAT and/or other factors that covary with elevation), but forest structure and species composition may also affect AGB dynamics to some degree.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, some plots had low‐intensity selective logging prior to the initial census. Forests in this region with low‐intensity logging largely recover to their pre‐logging condition, in terms of forest structure and species composition, within 20 years (Blundo, Malizia, & González‐Espinosa, 2015). In summary, 48 out of 60 plots were old‐growth forests (28 with grazing and 20 without), and 12 out of 60 plots were forests with low‐intensity logging (>20 years since the last selective logging) (Table S1).…”

Section: Methodsmentioning

confidence: 99%

Forest biomass stocks and dynamics across the subtropical Andes

Blundo

Malizia

et al. 2020

Biotropica

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Forest biomass plays an important role in the global carbon cycle. Therefore, understanding the factors that control forest biomass stocks and dynamics is a key challenge in the context of global change. We analyzed data from 60 forest plots in the subtropical Andes (22–27.5° S and 300–2300 m asl) to describe patterns and identify drivers of aboveground biomass (AGB) stocks and dynamics. We found that AGB stocks remained roughly constant with elevation due to compensating changes in basal area (which increased with elevation) and plot‐mean wood specific gravity (which decreased with elevation). AGB gain and loss rates both decreased with elevation and were explained mainly by temperature and rainfall (positive effects on both AGB gains and losses). AGB gain was also correlated with forest‐use history and weakly correlated with forest structure. Mean annual temperature and rainfall showed minor effects on AGB stocks and AGB change (gains minus losses) over recent decades. Although AGB change was only weakly correlated with climate variables, increases in AGB gains and losses with increasing rainfall—together with observed increases in rainfall in the subtropical Andes—suggest that these forests may become increasingly dynamic in the future. Abstract in Spanish is available with online material

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“…Ocotea puberula , Chrysophyllum gonocarpum ). In premontane forest, biomass distribution varies according to climate at a regional spatial scale and to selective logging history at the landscape scale (Blundo et al 2015). Finally, variation in forest biomass may affect the phenological timing in DCF (Table 2), i.e.…”

Section: Discussionmentioning

confidence: 99%

Relationships among phenology, climate and biomass across subtropical forests in Argentina

et al. 2018

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Abstract:Phenology is a key ecosystem process that reflects climate–vegetation functioning, and is an indicator of global environmental changes. Recently, it has been suggested that land-use change and timber extraction promote differences in forest phenology. We use remote-sensing data to describe regional leaf phenological patterns in combination with field data from 131 plots in old-growth and disturbed forests distributed over subtropical forests of Argentina (54–65°W). We assessed how climate is related to phenological patterns, and analysed how changes in forest structural characteristics such as stock of above-ground biomass relate to the observed phenological signals across the gradient. We found that the first three axes of a principal component analysis explained 85% of the variation in phenological metrics across subtropical forests, ordering plots mainly along indicators of seasonality and productivity. At the regional scale, the relative importance of forest biomass in explaining variation in phenological patterns was about 15%. Climate showed the highest relative importance, with temperature and rainfall explaining Enhanced Vegetation Index metrics related to seasonality and productivity patterns (27% and 47%, respectively). Within forest types, climate explains the major fraction of variation in phenological patterns, suggesting that forest function may be particularly sensitive to climate change. We found that forest biomass contributed to explaining a proportion of leaf phenological variation within three of the five forest types studied, and this may be related to changes in species composition, probably as a result of forest use.

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Distribution of functional traits in subtropical trees across environmental and forest use gradients

Cited by 16 publications

References 52 publications

Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

Forest biomass stocks and dynamics across the subtropical Andes

Relationships among phenology, climate and biomass across subtropical forests in Argentina

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