Title
Fire effects and ecological recovery pathways of tropical montane cloud forests along a time chronosequence
Date Issued
01 February 2018
Access level
open access
Resource Type
journal article
Author(s)
Oliveras I.
Román-Cuesta R.M.
Quintano Loayza J.A.
Huamán V.
Lizárraga N.
Sans G.
Quispe K.
Lopez E.
Lopez D.
Cuba Torres I.
Enquist B.J.
Malhi Y.
Publisher(s)
Blackwell Publishing Ltd
Abstract
Tropical montane cloud forests (TMCFs) harbour high levels of biodiversity and large carbon stocks. Their location at high elevations make them especially sensitive to climate change, because a warming climate is enhancing upslope species migration, but human disturbance (especially fire) may in many cases be pushing the treeline downslope. TMCFs are increasingly being affected by fire, and the long-term effects of fire are still unknown. Here, we present a 28-year chronosequence to assess the effects of fire and recovery pathways of burned TMCFs, with a detailed analysis of carbon stocks, forest structure and diversity. We assessed rates of change of carbon (C) stock pools, forest structure and tree-size distribution pathways and tested several hypotheses regarding metabolic scaling theory (MST), C recovery and biodiversity. We found four different C stock recovery pathways depending on the selected C pool and time since last fire, with a recovery of total C stocks but not of aboveground C stocks. In terms of forest structure, there was an increase in the number of small stems in the burned forests up to 5–9 years after fire because of regeneration patterns, but no differences on larger trees between burned and unburned plots in the long term. In support of MST, after fire, forest structure appears to approximate steady-state size distribution in less than 30 years. However, our results also provide new evidence that the species recovery of TMCF after fire is idiosyncratic and follows multiple pathways. While fire increased species richness, it also enhanced species dissimilarity with geographical distance. This is the first study to report a long-term chronosequence of recovery pathways to fire suggesting faster recovery rates than previously reported, but at the expense of biodiversity and aboveground C stocks.
Start page
758
End page
772
Volume
24
Issue
2
Language
English
OCDE Knowledge area
Ciencias de las plantas, Botánica
Conservación de la Biodiversidad
Subjects
Scopus EID
2-s2.0-85041316615
PubMed ID
Source
Global Change Biology
ISSN of the container
13541013
Sponsor(s)
This paper is a product of the Andes Biodiversity and Ecosystems Research Group (ABERG) research consortium. The authors wish to thank to the research assistants for field assistance, and to MNP forest rangers for allowing us to use their facilities. We also thank the Amazon Basin Conservation Association for institutional support. This material is based upon work supported by the UK Natural Environment Research Council under grant NE/G006385/ 1. BJE was supported by National Science Foundation awards 106586 and DEB 1457812. M is supported by the Jackson Foundation and a European Research Grant Advanced Investigator Award GEM-TRAIT (ACRYQY00). We warmly thank and remember our beloved Flor Zamora and Rommel, whom shared many of the field adventures while data collection, but today are not among us anymore.
Natural Environment Research Council, Grant/Award Number: NE/G006385/1; National Science Foundation, Grant/Award Number: 106586, DEB 1457812; Jackson Foundation and a European Research Grant Advanced Investigator Award GEM-TRAIT, Grant/Award Number: ACRYQY00
Sources of information:
Directorio de Producción Científica
Scopus