1. Tyranny of trees in grassy biomes.

    Science 347(6221):484 (2015) PMID 25635078

  2. Tyranny of trees in grassy biomes.

    Science 347(6221):484 (2015) PMID 25635078

  3. Tyranny of trees in grassy biomes.

    Science 347(6221):484 (2015) PMID 25635078

  4. Outer bark thickness decreases more with height on stems of fire-resistant than fire-sensitive Floridian oaks (Quercus spp.; Fagaceae).

    American Journal of Botany 101(12):2183 (2014) PMID 25480714

    • In ecosystems maintained by low-intensity surface fires, tree bark thickness is a determinant of fire-survival because it protects underlying tissues from heat damage. However, it has been unclear whether relatively thick bark i S: maintained at all heights or only near the ground where damage...
  5. Outer bark thickness decreases more with height on stems of fire-resistant than fire-sensitive Floridian oaks (Quercus spp.; Fagaceae).

    American Journal of Botany 101(12):2183 (2014) PMID 25480714

    • In ecosystems maintained by low-intensity surface fires, tree bark thickness is a determinant of fire-survival because it protects underlying tissues from heat damage. However, it has been unclear whether relatively thick bark i S: maintained at all heights or only near the ground where damage...
  6. Outer bark thickness decreases more with height on stems of fire-resistant than fire-sensitive Floridian oaks (Quercus spp.; Fagaceae).

    American Journal of Botany 101(12):2183 (2014) PMID 25480714

    • In ecosystems maintained by low-intensity surface fires, tree bark thickness is a determinant of fire-survival because it protects underlying tissues from heat damage. However, it has been unclear whether relatively thick bark i S: maintained at all heights or only near the ground where damage...
  7. Abrupt increases in Amazonian tree mortality due to drought-fire interactions.

    PNAS 111(17):6347 (2014) PMID 24733937 PMCID PMC4035969

    Interactions between climate and land-use change may drive widespread degradation of Amazonian forests. High-intensity fires associated with extreme weather events could accelerate this degradation by abruptly increasing tree mortality, but this process remains poorly understood. Here we present...
  8. Abrupt increases in Amazonian tree mortality due to drought-fire interactions.

    PNAS 111(17):6347 (2014) PMID 24733937 PMCID PMC4035969

    Interactions between climate and land-use change may drive widespread degradation of Amazonian forests. High-intensity fires associated with extreme weather events could accelerate this degradation by abruptly increasing tree mortality, but this process remains poorly understood. Here we present...
  9. Carbon emissions performance of commercial logging in East Kalimantan, Indonesia.

    Global Change Biology 20(3):923 (2014) PMID 24022913

    Adoption of reduced-impact logging (RIL) methods could reduce CO2 emissions by 30-50% across at least 20% of remaining tropical forests. We developed two cost effective and robust indices for comparing the climate benefits (reduced CO2 emissions) due to RIL. The indices correct for variability i...
  10. Carbon emissions performance of commercial logging in East Kalimantan, Indonesia.

    Global Change Biology 20(3):923 (2014) PMID 24022913

    Adoption of reduced-impact logging (RIL) methods could reduce CO2 emissions by 30-50% across at least 20% of remaining tropical forests. We developed two cost effective and robust indices for comparing the climate benefits (reduced CO2 emissions) due to RIL. The indices correct for variability i...
  11. Forest biomass recovery after conventional and reduced-impact logging in Amazonian Brazil

    Forest Ecology and Management 314:59 (2014)

    • Logging-induced biomass losses were greater in the plot under CL than RIL. • By 16years post-logging, the RIL plot recovered 100% of its original ABG biomass. ...
  12. The Global Economics of Forestry, Hyde, William F. Resources for the Future Press, New York, NY (2012). 476 p., Hardback, Price $99.95, ISBN13: 978-0-415-51828-4

    Biological Conservation 166:2 (2013)

  13. Testing the Amazon savannization hypothesis: fire effects on invasion of a neotropical forest by native cerrado and exotic pasture grasses.

    Philosophical Transactions of the Royal Society... 368(1619):20120427 (2013) PMID 23610179 PMCID PMC3638439

    Changes in climate and land use that interact synergistically to increase fire frequencies and intensities in tropical regions are predicted to drive forests to new grass-dominated stable states. To reveal the mechanisms for such a transition, we established 50 ha plots in a transitional forest ...
  14. Testing the Amazon savannization hypothesis: fire effects on invasion of a neotropical forest by native cerrado and exotic pasture grasses.

    Philosophical Transactions of the Royal Society... 368(1619):20120427 (2013) PMID 23610179 PMCID PMC3638439

    Changes in climate and land use that interact synergistically to increase fire frequencies and intensities in tropical regions are predicted to drive forests to new grass-dominated stable states. To reveal the mechanisms for such a transition, we established 50 ha plots in a transitional forest ...
  15. Certified and uncertified logging concessions compared in Gabon: changes in stand structure, tree species, and biomass.

    Environmental Management 51(3):524 (2013) PMID 23277438

    Forest management certification is assumed to promote sustainable forest management, but there is little field-based evidence to support this claim. To help fill this gap, we compared a Forest Stewardship Council (FSC)-certified with an adjacent uncertified, conventionally logged concession (CL)...
  16. Certified and uncertified logging concessions compared in Gabon: changes in stand structure, tree species, and biomass.

    Environmental Management 51(3):524 (2013) PMID 23277438

    Forest management certification is assumed to promote sustainable forest management, but there is little field-based evidence to support this claim. To help fill this gap, we compared a Forest Stewardship Council (FSC)-certified with an adjacent uncertified, conventionally logged concession (CL)...
  17. Helping curb tropical forest degradation by linking REDD+ with other conservation interventions: a view from the forest

    Current Opinion in Environmental Sustainability 4(6):670 (2012)

    Highlights ► Reducing GHG emissions from forest degradation requires concerted policies and institutions. ► Understanding forest degradation drivers is needed to design efficient REDD+ programs. ► Likewise learning from past interventions will promote effective REDD+ design. ...
  18. Helping curb tropical forest degradation by linking REDD+ with other conservation interventions: a view from the forest

    Current Opinion in Environmental Sustainability 4(6):670 (2012)

    Highlights ► Reducing GHG emissions from forest degradation requires concerted policies and institutions. ► Understanding forest degradation drivers is needed to design efficient REDD+ programs. ► Likewise learning from past interventions will promote effective REDD+ design. ...
  19. Cost comparisons of reduced-impact and conventional logging in the tropics

    Journal of Forest Economics 18(3):242 (2012)

    Comparisons of the costs of reduced-impact (RIL) and conventional logging (CL) based on new data from Gabon and 10 previously published studies revealed that some tropical forest operators should adopt RIL out of financial self-interest but many may require other motivation. Among the ...
  20. Grass-dominated vegetation, not species-diverse natural savanna, replaces degraded tropical forests on the southern edge of the Amazon Basin

    Biological Conservation 144(5):1419 (2011)

    Changes in land-uses, fire regimes, and climate are expected to promote savanna expansion in the Amazon Basin, but most studies that come to this conclusion fail to define “savanna” clearly or imply that natural savannas of native species will spread at the expense of forest. Given their di...