Katy Roucoux co-organized a session on “Palaeoecology of tropical ecosystems” at Annual Meeting of the Society for tropical Ecology (GTö) in Brussels, on 6th–10th February 2017. She also presented a talk on “The contribution of palaeoecology to tropical peatland science.”
Drs Ed Mitchard, Ian Lawson and Simon Mudd are advertising a PhD position under the SAGES competition. Based in Edinburgh, the student will develop remote-sensing and fieldwork-based approaches to mapping peat properties in the Peruvian Amazon, building on previous work by Draper et al. For more information, see FindAPhd.
A new paper led by Greta Dargie and co-authored by Ian Lawson in Nature reports the existence of 145,000 km2 of peatlands in the Cuvette Centrale of the Congo Basin. We estimate carbon storage at around 31.4 Gt C. This discovery increases the best estimate of carbon storage in tropical peatlands by about 30%.
A new paper in Palaeo3 by our group is now online here. The paper, “The vegetation history of an Amazonian domed peatland” by Kelly et al., reports the first pollen record from a domed mire in Amazonia. The record includes the first evidence from the region for discontinuous peat accumulation, which suggests that carbon sequestration may be sensitive to changes in boundary conditions (including climate). The record indicates that, unlike some domed peatlands in Panama and SE Asia, the pattern of change down-core appears not to match the spatial pattern of vegetation across the site. Finally, it indicates that the present-day vegetation at the site, a type of pole forest, has only been present in its current form for c. 200 years. Overall the record shows that these systems are impressively dynamic, with several substantial changes in vegetation composition over the ~2000 years that peat has been accumulating at the site. This work was funded by a NERC grant to Katy Roucoux et al., and by Tom Kelly’s NERC-funded PhD project, with additional fieldwork support from the RGS.
Ian Lawson and colleagues from the UK Tropical Peat Working Group are organizing a session on “Tropical Peatlands” at EGU in April 2017. The call for abstracts is open with a deadline of 11 January 2017. All submissions welcome! The details of the session are here – the hope is to stimulate comparisons of peatlands across the tropics, building particularly on recent results from the Americas and Africa, but also benefiting from progress in SE Asia.
Ian Lawson has contributed to a blog post for the Journal of Applied Ecology on the impact of the ongoing destruction of Indonesia peatlands on the research community. With SE Asian peatlands rapidly diminishing, the importance of Amazonian and African peatlands as records of tropical environmental and ecological change is heightened. You can read the post here.
Katy Roucoux, Tom Kelly and Freddie Draper presented their research on peatlands in the Pastaza-Marañón Foreland Basin of Peru at the European Conference of Tropical Ecology. A fuller report can be found here.
PAGES C-PEAT is a new working group on the long-term history of peatlands around the globe. Drawing mainly on geological (including Holocene) perspectives, the group aims to synthesize our understanding of past change in peatland ecosystems and use that to help predict their future. Ian Lawson presented a summary of the group’s work on Pastaza-Marañón Basin peatlands at C-PEAT’s inaugural meeting at the Lamont-Doherty Earth Observatory in New Jersey. This was one of a number of papers emphasizing the vulnerability of tropical peatlands to land-use change. Mapping future threats to peatlands – and opportunities for conservation – emerged as the basis of a new theme for the working group, which will be co-led by Ian.
Ian Lawson presented a summary of the group’s work in Peru at the Congress of the International Union for Quaternary Science in Nagoya, Japan.
Two recent reports suggest that the potential threats to Amazonian peatlands from deforestation for oil palms and cacao, and gold mining and other extractive industries, are growing. The EIA published a particularly critical report last month, and MAAP also claims to have found evidence of significant deforestation in the Peruvian Amazon in its analyses of LandSat imagery. This raises the concern that the relatively unglamorous and little-known, but very carbon-dense peatlands in Loreto (Draper et al. 2014) could come under pressure if (often very badly needed) agricultural and industrial development is deflected away from terra firme forest.