@InProceedings{BerenguerGFAMTVB:2016:UsWoDe,
author = "Berenguer, Erika and Gardner, Toby and Ferreira, Joice and
Arag{\~a}o, Luiz Eduardo Oliveira e Cruz de and Mac Nally, Ralph
and Thomson, James and Vieira, Ima and Barlow, Jos",
affiliation = "{Lancaster University} and {Stockholm Environment Institute} and
{Embrapa Amaz{\^o}nia Oriental} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {University of Canberra} and
{University of Canberra} and {Museu Paraense Em{\'{\i}}lio
Goeldi} and {Lancaster University}",
title = "Seeing the woods through the saplings: using wood density to
assess post-disturbance recovery of human-modified tropical
forests",
year = "2016",
organization = "Annual Meeting of the Association for Tropical Biology and
Conservation, 53.",
abstract = "Most of the worlds humid tropical forests have already been
modified by human activities such as selective logging, understory
fires, and clear-felling. Despite the ubiquity of these
human-modified forests, we have a limited knowledge of their
potential to recover key traits linked to ecosystem functioning.
Here we propose a novel approach to further our understanding of
tropical forests recovery to human-driven impacts. We analyze the
wood density of trees and saplings in 121 plots (0.25ha each)
located across a disturbance gradient in the eastern Brazilian
Amazon. Wood density (wd) is a key plant trait, closely linked to
important ecosystem functions and services, such as carbon
storage. Saplings respond faster to human impacts than large trees
and effectively represent the future of a forest stand, thus
allowing us to make valuable inferences about the future
ecological state of a forest. We combined the analysis of 31,095
stems with a 22-year chronosequence of satellite imagery data and
plot-level environmental variables, including recovery time of
forest plots, distance to the nearest forest edge, density of
lianas, the amount of surrounding forest cover, soil clay content
and mean plot slope. We found that wood density of saplings in
undisturbed primary forests (wd = 0.70; SE = ±0.004) is
significantly higher than in disturbed primary forests (wd = 0.59;
SE = ±0.007) and in secondary forests (wd = 0.58; SE = ±0.016),
indicating that the human-modified forests of the future may
present a different set of traits, and therefore perform a
different set of functions, than the future undisturbed forests.
We also found that forests located less than 130m away from
human-made edges or with high density of lianas (\≥900
stems per hectare) may be impeded in their recovery from
disturbance or clear-felling. These results indicate that future
human-modified tropical forests may hold less carbon than
currently expected. We urge scientists, governments and the civil
society alike to start addressing the cryptic but severe impacts
of human disturbances in remaining areas of standing primary
forests and regenerating secondary forests.",
conference-location = "Le Corum",
conference-year = "19-23 June",
language = "en",
targetfile = "being_seeing.pdf",
urlaccessdate = "28 abr. 2024"
}