Liverpool Skylilne

Natural Sciences and Psychology

Dr Stephanie Evers

Dr Stephanie Evers

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Biography

-Senior Lecturer in Aquatic Ecology and Biogeochemistry, School of Natural Sciences and Psychology, Liverpool John Moores University,
-Honorary Associate Professor in Environmental Science, School of Geographical and Environmental Sciences, University of Nottingham Malaysia Campus,

Overview:

My research focuses on wetlands ecology and biogeochemistry. Primarily I am interested in the impact of conversion of tropical peat swamp forests to agriculture and the impact to Greenhouse Gas (GHG) emissions, alteration to soil physicochemistry and ecological functioning of these unique tropical ecosystems with conversion as well as in relation to rehabilitation activities.

I am founder and Principal Investigator (PI) of an international multi-disciplinary research consortium called TROCARI (Tropical Catchment Research Initiative) whose focus is on research related to tropical peat ecosystem function, degradation impacts to ecology, GHG emissions and climate change, ecosystem services and socio-political implications. The consortium is bound by a MoU but more recently has been extended into a larger international network of academic, government, NGO and industry partners. Though this, I have 5 current PhD students and one completed.

Background to tropical peatlands:

Tropical peatlands in Southeast Asia are a globally important ecosystem for carbon storage, biodiversity provision and hydrological regulation. The region comprises approximately 24.8 MHa and stores 68.5Gt of carbon (C). However, tropical peat swamp forests (PSFs) are under increasing threat from agricultural conversion, deforestation, drainage and fires. Alteration of the soil environment via drainage and the resulting peat oxidation alters the microbial community composition, abundance, and activity levels. This increases rates of organic matter decomposition and greenhouse gas (GHG) emissions. Consequently, drained peats revert from C stores to sources, with soil CO2 emissions and fluvial emissions (from drainage ditches) of carbon being many millions of tonnes per year. On top of that fire emissions driven by drained and dried peatlands, are equivalent to 2.3–8.2% of global CO2 emissions from fossil fuel burning. With the increasing recognition of the fundamental unsustainability of drainage-based agricultural conversion on peatlands, research undertaken by the research group TROCARI, considers the extent to these losses, implications to ecosystem services and effective methods for rehabilitation/wiser use of peatlands into the future.

Publications

Highlighted publications

Evers S, Yule CM, Padfield R, O'Reilly P, Varkkey H. 2017. Keep wetlands wet: the myth of sustainable development of tropical peatlands – implications for policies and management Global Change Biology, 23 :534-549 >DOI

Editorials and letter to the editor

Wijedasa LS, Jauhiainen J, Kononen M, Lampela M, Vasander H, Leblanc M-C, Evers S, Smith TEL, Yule CM, Varkkey H, Lupascu M, Parish F, Singleton I, Clements GR, Aziz SA, Harrison ME, Cheyne S, Anshari GZ, Meijaard E, Goldstein JE, Waldron S, Hergoualc'h K, Dommain R, Frolking S, Evans CD, Posa MRC, Glaser PH, Suryadiputra N, Lubis R, Santika T, Padfield R, Kurnianto S, Hadisiswoyo P, Lim TW, Page SE, Gauci V, Van der Meer PJ, Buckland H, Garnier F, Samuel MK, Choo LNLK, O'Reilly P, Warren M, Suksuwan S, Sumarga E, Jain A, Laurance WF, Couwenberg J, Joosten H, Vernimmen R, Hooijer A, Malins C, Cochrane MA, Perumal B, Siegert F, Peh KS-H, Comeau L-P, Verchot L, Harvey CF, Cobb A, Jaafar Z, Wosten H, Manuri S, Muller M, Giesen W, Phelps J, Yong DL, Silvius M, Wedeux BMM, Hoyt A, Osaki M, Hirano T, Takahashi H, Kohyama TS, Haraguchi A, Nugroho NP, Coomes DA, Quoi LP, Dohong A, Gunawan H, Gaveau DLA, Langner A, Lim FKS, Edwards DP, Giam X, Van der Werf G, Carmenta R, Verwer CC, Gibson L, Gandois L, Graham LLB, Regalino J, Wich SA, Rieley J, Kettridge N, Brown C, Pirard R, Moore S, Capilla BR, Ballhorn U, Ho HC, Hoscilo A, Lohberger S, Evans TA, Yulianti N, Blackham G, Onrizal , Husson S, Murdiyarso D, Pangala S, Cole LES, Tacconi L, Segah H, Tonoto P, Lee JSH, Schmilewski G, Wulffraat S, Putra EI, Cattau ME, Clymo RS, Morrison R, Mujahid A, Miettinen J, Liew SC, Valpola S, Wilson D, D'Arcy L, Gerding M, Sundari S, Thornton SA, Kalisz B, Chapman SJ, Su ASM, Basuki I, Itoh M, Traeholt C, Sloan S, Sayok AK, Andersen R. 2017. Denial of long-term issues with agriculture on tropical peatlands will have devastating consequences GLOBAL CHANGE BIOLOGY, 23 :977-982 >DOI >Link

Journal Articles

Tonks AJ, Aplin P, Beriro DJ, Cooper H, Evers S, Vane CH, Sjogersten S. 2017. Impacts of conversion of tropical peat swamp forest to oil palm plantation on peat organic chemistry, physical properties and carbon stocks GEODERMA, 289 :36-45 >DOI >Link

Evers S, Yule CM, Padfield R, O'Reilly P, Varkkey H. 2017. Keep wetlands wet: the myth of sustainable development of tropical peatlands – implications for policies and management Global Change Biology, 23 :534-549 >DOI

Padfield R, Drew S, Syayuti K, Page S, Evers S, Campos-Arceiz A, Kangayatkarasu N, Sayok A, Hansen S, Schouten G, Maulidia M, Papargyropoulou E, Tham MH. 2016. Landscapes in transition: an analysis of sustainable policy initiatives and emerging corporate commitments in the palm oil industry Landscape Research, 41 :744-756 >DOI

Wijedasa LS, Jauhiainen J, Könönen M, Lampela M, Vasander H, LeBlanc M, Evers SL, et al., . 2016. Denial of long-term issues with agriculture on tropical peatlands will have devastating consequences GLOBAL CHANGE BIOLOGY, >DOI

Hansen SB, Padfield R, Syayuti K, Evers S, Zakariah Z, Mastura S. 2015. Trends in global palm oil sustainability research Journal of Cleaner Production, 100 :140-149 >DOI

Padfield R, Waldron S, Drew S, Papargyropoulou E, Kumaran S, Page S, Gilvear D, Armstrong A, Evers S, Williams P, Zakaria Z, Chin SY, Balle Hansen S, Campos-Arceiz A, Latif MT, Sayok A, Tham MH. 2015. Research agendas for the sustainable management of tropical peatland in Malaysia Environmental Conservation, 42 :73-83 >DOI

Sjögersten S, Black CR, Evers S, Hoyos-Santillan J, Wright EL, Turner BL. 2014. Tropical wetlands: A missing link in the global carbon cycle? Global Biogeochemical Cycles, 28 :1371-1386 >DOI

Caffrey J, Millane M, Evers S, Moran H. 2011. Management of Lagarosiphon major (ridley) moss in lough corrib-a review Biology and Environment, 111 >DOI

Caffrey JM, Evers S, Millane M, Moran H. 2011. Current status of Ireland's newest invasive species -the Asian clam Corbicula fluminea (Müller, 1774) Aquatic Invasions, 6 :291-299 >DOI

Caffrey JM, Millane M, Evers S, Moran H, Butler M. 2010. A novel approach to aquatic weed control and habitat restoration using biodegradable jute matting Aquatic Invasions, 5 :123-129 >DOI

Matysek M, Evers SL, Samuel MK, Sjogersten S. High heterotrophic CO2 emissions from a Malaysian oil palm plantations during dry-season Wetlands Ecology and Management,