Abstract
The growth-survival trade-off hypothesis states that functional traits of stem, wood, leaves and fruits govern acquisitive and conservative strategies of plant species that grow/survive differently in forests. We aimed to determine whether heterogeneity during the colonization of a secondary Atlantic Forest fragment causes differences in colonization-related traits and determines taxonomic composition of subplots. A total of 5,078 subplots were censused with leaf and fruit traits and height measurements being determined for each tree of each species, and with averaged-abundance-weighted values calculated for each subplot. A dendrogram was generated from the taxonomic composition of subplots using Sorensen similarity and UPGMA clustering. A total of 74,335 trees of 178 species were recorded. Clustering revealed five main groups of subplots that were tested against each other and found to differ in terms of average leaf width, leaf-width/petiole-width, wood density, mean height, height mode, fruit width and fruit length. Greater leaf averages in subplots were associated with greater fruit averages, and with higher wood densities and greater heights among groups of subplots, revealing that heterogeneity during colonization directed the communities of the 50-ha plot. The averaged values of functional traits detected subplots associated with conditions favorable to colonization, thereby reinforcing the growth-survival trade-off hypothesis.
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Claims 7
Claim · model-written summary
The forest plot contained 74,335 trees from 178 species.
Verbatim
e0“A total of 74,335 trees of 178 species were recorded”
Claim · model-written summary
Clustering identified five principal groups of tree subplots.
Verbatim
e0“Clustering revealed five main groups of subplots”
e1“each tree of each species”
Claim · model-written summary
The five groups differed in average leaf width, leaf-width/petiole-width, and wood density.
Verbatim
e0“found to differ in terms of average leaf width, leaf-width/petiole-width, wood density, mean height, height mode, fruit width and fruit length”
e1“each tree of each species”
Claim · model-written summary
The five groups differed in mean height, height mode, fruit width, and fruit length.
Verbatim
e0“found to differ in terms of average leaf width, leaf-width/petiole-width, wood density, mean height, height mode, fruit width and fruit length”
e1“each tree of each species”
Claim · model-written summary
Higher subplot leaf averages were associated with higher fruit averages.
Verbatim
e0“Greater leaf averages in subplots were associated with greater fruit averages, and with higher wood densities and greater heights among groups of subplots”
e1“each tree of each species”
Claim · model-written summary
Higher subplot leaf averages were associated with higher wood density and tree height.
Verbatim
e0“Greater leaf averages in subplots were associated with greater fruit averages, and with higher wood densities and greater heights among groups of subplots”
e1“each tree of each species”
Claim · model-written summary
Average functional trait values detected subplots favorable to colonization.
Not reportedComparatorValue
Verbatim
e0“The averaged values of functional traits detected subplots associated with conditions favorable to colonization”
e1“each tree of each species”