I am an ecosystems ecologist/biogeochemist, with a main research focus on northern high latitude (and altitude) ecosystems and environmental change. I have worked in the Arctic since 1993, having previously research on air pollution effects on soils and ecosystems. I am passionate about ‘The North’, and attribute my love of cold, snowy and windswept places to my maternal heritage (from Sutherland, in the north of Scotland), going on expedition to North Iceland as an undergrad (back in 1983), reading Jack London novels, and possibly also to the lyrics of a Led Zeppelin song!
More specifically; I graduated in 1984 with a BSc Combined Honours in Biology and Geography from the University of Exeter, and completed a PhD in 1988 at Lancaster University and the Institute of Terrestrial Ecology on the effects of air pollutants on forest soils. After a post-doctoral term at Lancaster University, continuing with air pollution research for the EU, my career path took me to the Arctic (in 1991), where I have continued to research ever since. My first academic position, however, was back at my Alma Mater, Exeter, as Lecturer in Ecology. Since then I have held appointments at Royal Holloway, University of London (Lecturer in Environmental Geography; 1996 – 1997), the University of Uppsala, Sweden (Associate Professor, then Docent, and finally Professor in Physical Geography; 1997 – 2004), and then back to the UK as Reader, then Professor of Ecosystems Ecology (2004-2009) at the University of Stirling, and Professor in Physical Geography (2012-2013), University of Sheffield, and Chair in Ecosystem Science at Heriot-Watt University, Edinburgh (2013-2017). I am now back in Stirling, as Professor of Ecosystem Science.
Chair of the International Arctic Science Committee's (IASC) Terrestrial Working Group
https://iasc.info/ The International Arctic Science Committee (IASC; https://iasc.info/) is a non-governmental, international scientific organization. The Founding Articles committed IASC to pursue a mission of encouraging and facilitating cooperation in all aspects of Arctic research, in all countries engaged in Arctic research and in all areas of the Arctic region. Overall, IASC promotes and supports leading-edge multi-disciplinary research in order to foster a greater scientific understanding of the Arctic region and its role in the Earth system.
The scientific scope of the Terrestrial Working Group (https://iasc.info/working-groups/terrestrial) includes scientific research on arctic terrestrial and freshwater environments, landscapes and biota, and their responses to, and interactions with, other components of the Earth system. The remit encompasses the dynamics of the Arctic system; past, present and future.
Chair (and co-founding member) of the UK Arctic and Antarctic Partnership (UKAAP); https://ukaapartnership.org/
https://ukaapartnership.org/ UK Arctic and Antarctic Partnership (UKAAP) is a community led initiative, aimed at bringing together researchers across a full range of disciplines who are interested in the polar regions.
Chair of the International Tundra Experiment (ITEX)
Chair of the Science Advisory Group Abisko (SAGA) Swedish Polar Research Secretariat https://polar.se/forskning-i-abisko/ Independent Chair of the Science Advisory Group Abisko (SAGA), at the invitation of the Swedish Polar Research Secretariat (Polarforsknings Secretariatet)
SAGA's mission is to provide a scientific perspective on the ambition of the Abisko Scientific Research Station, Sweden. For example, how the research station can maintain, develop and attract advanced research, and develop proposals for research areas that should be given priority support.
Co-Chair of the IASC (International Arctic Science Committee) Carbon Footprint Action Group https://iasc.info/ An Action Group convened by the IASC Executive "to provide recommendations for an IASC carbon policy and ways to reduce IASC’s carbon footprint, considering the direct and indirect impacts of IASC funding and activities."
At core, I am a process ecologist/biogeochemist, but I'm particularly keen to see process studies placed into Earth System context.
I currently lead the Environmental Biogeochemistry Research Group at Stirling. Externally, I have chaired the International Tundra Experiment (ITEX) and, until May 2019, the Terrestrial Working Group (TWG) of the International Arctic Science Committee (IASC). His process mechanistic work, published for example in Nature, Nature Climate Change, Global Change Biology (GCB) and Ecology Letters, has indicated that the massive C stores in Arctic and boreal soils are more vulnerable to climate warming than previously predicted. Recent NERC-funded work (NE/K000284 and NE/P002722), in particular, has highlighted the importance of rhizosphere processes for the fate of recently assimilated C and the turnover of soil organic carbon.
Research highlights have been the publication of three International Tundra Experiment (ITEX) meta-analysis papers (in Ecological Monographs, PNAS and Ecology Letters), each of which is a citation classic. Phil and colleagues’ more recent work on soil processes and global change has been published in Nature and Nature Climate Change. This research hints at some looming and unwelcome ‘surprises’ in the global greenhouse, and challenges the validity of some of the basic logic underpinning key models of the global carbon cycle and climate system.
Parker TC, Clemmensen KE, Friggens NL, Hartley IP, Johnson D, Lindahl BD, Olofsson J, Siewert MB, Street LE, Subke J & Wookey PA (2020) Rhizosphere allocation by canopy-forming species dominates soil CO2 efflux in a subarctic landscape. New Phytologist, 227 (6), pp. 1818-1830. https://doi.org/10.1111/nph.16573
Pascual D, Åkerman J, Becher M, Callaghan TV, Christensen TR, Dorrepaal E, Emanuelsson U, Giesler R, Hammarlund D, Hanna E, Hofgaard A, Jin H, Johansson C, Jonasson C & Wookey P (2020) The missing pieces for better future predictions in subarctic ecosystems: A Torneträsk case study. AMBIO: A Journal of the Human Environment. https://doi.org/10.1007/s13280-020-01381-1
Friggens NL, Hester AJ, Mitchell RJ, Parker TC, Subke J & Wookey PA (2020) Tree planting in organic soils does not result in net carbon sequestration on decadal timescales. Global Change Biology, 26 (9), pp. 5178-5188. https://doi.org/10.1111/gcb.15229
Street LE, Garnett MH, Subke J, Wookey PA, Baxter R & Dean JF (2020) Plant carbon allocation drives turnover of old soil organic matter in permafrost tundra soils. Global Change Biology, 26 (8), pp. 4559-4571. https://doi.org/10.1111/gcb.15134
Friggens NL, Aspray TJ, Parker TC, Subke J & Wookey PA (2020) Spatial patterns in soil organic matter dynamics are shaped by mycorrhizosphere interactions in a treeline forest. Plant and Soil, 447 (1), pp. 521-535. https://doi.org/10.1007/s11104-019-04398-y
Parker TC, Sanderman J, Holden RD, Blume-Werry G, Sjögersten S, Large D, Castro-Díaz M, Street LE, Subke J & Wookey PA (2018) Exploring drivers of litter decomposition in a greening Arctic: Results from a transplant experiment across a treeline. Ecology, 99 (10), pp. 2284-2294. https://doi.org/10.1002/ecy.2442
Street LE, Subke J, Baxter R, Dinsmore KJ, Knoblauch C & Wookey PA (2018) Ecosystem carbon dynamics differ between tundra shrub types in the western Canadian Arctic. Environmental Research Letters, 13 (8), Art. No.: 084014. https://doi.org/10.1088/1748-9326/aad363
Tetzlaff D, Piovano T, Ala-Aho P, Smith A, Carey SK, Marsh P, Wookey PA, Street LE & Soulsby C (2018) Using stable isotopes to estimate travel times in a data-sparse Arctic catchment: Challenges and possible solutions. Hydrological Processes, 32 (12), pp. 1936-1952. https://doi.org/10.1002/hyp.13146
Dean J, van der Velde Y, Garnett MH, Dinsmore KJ, Baxter R, Lessels JS, Smith P, Street LE, Subke J, Tetzlaff D, Washbourne I, Wookey P & Billett M (2018) Abundant pre-industrial carbon detected in Canadian Arctic headwaters – implications for the permafrost carbon feedback. Environmental Research Letters, 13 (3), Art. No.: 034024. https://doi.org/10.1088/1748-9326/aaa1fe
Barrio IC, Linden E, te Beest M, Olofsson J, Rocha A, Soininen EM, Alatalo JM, Andersson T, Asmus A, Boike J, Brathen KA, Bryant JP, Buchwal A, Bueno CG & Wookey P (2017) Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome. Polar Biology, 40 (11), pp. 2265-2278. https://doi.org/10.1007/s00300-017-2139-7
Parker T, Sadowsky J, Dunleavy H, Subke J, Frey S & Wookey P (2017) Slowed biogeochemical cycling in sub-arctic birch forest linked to reduced mycorrhizal growth and community change after a defoliation event. Ecosystems, 20 (2), pp. 316-330. https://doi.org/10.1007/s10021-016-0026-7
Dean J, Billett M, Baxter R, Dinsmore KJ, Lessels JS, Street LE, Subke J, Tetzlaff D, Washbourne I & Wookey P (2016) Biogeochemistry of “pristine” freshwater stream and lake systems in the western Canadian Arctic. Biogeochemistry, 130 (3), pp. 191-213. https://doi.org/10.1007/s10533-016-0252-2
Street LE, Dean J, Billett M, Baxter R, Dinsmore KJ, Lessels JS, Subke J, Tetzlaff D & Wookey P (2016) Redox dynamics in the active layer of an Arctic headwater catchment; examining the potential for transfer of dissolved methane from soils to stream water. Journal of Geophysical Research: Biogeosciences, 121 (11), pp. 2776-2792. https://doi.org/10.1002/2016JG003387
Auffret M, Karhu K, Khachane A, Dungait J, Fraser F, Hopkins DW, Wookey P, Singh B, Freitag TE, Hartley I & Prosser J (2016) The Role of Microbial Community Composition in Controlling Soil Respiration Responses to Temperature. PLoS ONE, 11 (10), Art. No.: e0165448. https://doi.org/10.1371/journal.pone.0165448
Wrona FJ, Johansson M, Culp JM, Jenkins A, Mard J, Myers-Smith IH, Prowse TD, Vincent WF & Wookey P (2016) Transitions in Arctic ecosystems: Ecological implications of a changing hydrological regime. Journal of Geophysical Research: Biogeosciences, 121 (3), pp. 650-674. https://doi.org/10.1002/2015JG003133
Hartley I, Hill TC, Wade TJ, Clement RJ, Moncrieff JB, Prieto-Blanco A, Disney M, Huntley B, Williams M, Howden NJK, Wookey P & Baxter R (2015) Quantifying landscape-level methane fluxes in subarctic Finland using a multiscale approach. Global Change Biology, 21 (10), pp. 3712-3725. https://doi.org/10.1111/gcb.12975
Parker T, Subke J & Wookey P (2015) Rapid carbon turnover beneath shrub and tree vegetation is associated with low soil carbon stocks at a subarctic treeline. Global Change Biology, 21 (5), pp. 2070-2081. https://doi.org/10.1111/gcb.12793
Hartley IP, Garnett MH, Sommerkorn M, Hopkins DW & Wookey PA (2013) The age of CO2 released from soils in contrasting ecosystems during the arctic winter. Soil Biology and Biochemistry, 63, pp. 1-4. https://doi.org/10.1016/j.soilbio.2013.03.011
Karhu K, Auffret M, Dungait J, Fraser F, Hopkins D, Prosser J, Singh B, Subke J, Wookey P, Agren G & Hartley I (2013) Microbial adaptation to temperature increases the vulnerability of carbon stocks in Arctic and Boreal soils to climate change. In: EGU General Assembly 2013. Geophysical Research Abstracts, 15. European Geosciences Union General Assembly 2013, Vienna, Austria, 07.04.2013-12.04.2013. Munich, Germany: European Geosciences Union, pp. EGU2013-2624. http://meetingorganizer.copernicus.org/EGU2013/EGU2013-2624.pdf
Fraser F, Hallett PD, Wookey P, Hartley I & Hopkins D (2013) How do enzymes catalysing soil nitrogen transformations respond to changing temperatures?. Biology and Fertility of Soils, 49 (1), pp. 99-103. https://doi.org/10.1007/s00374-012-0722-1
Hartley I, Garnett MH, Sommerkorn M, Hopkins D, Fletcher BJ, Sloan V, Phoenix GK & Wookey P (2012) A potential loss of carbon associated with greater plant growth in the European Arctic. Nature Climate Change, 2 (12), pp. 875-879. https://doi.org/10.1038/nclimate1575
Kaarlejarvi E, Baxter R, Hofgaard A, Hytteborn H, Khitun O, Molau U, Wookey P & Olofsson J (2012) Effects of Warming on Shrub Abundance and Chemistry Drive Ecosystem-Level Changes in a Forest-Tundra Ecotone. Ecosystems, 15 (8), pp. 1219-1233. https://doi.org/10.1007/s10021-012-9580-9
Elmendorf SC, Henry GHR, Hollister RD, Bjork RG, Bjorkman AD, Callaghan TV, Collier LS, Cooper EJ, Cornelissen JHC, Day TA, Fosaa AM, Gould WA, Gretarsdottir J, Harte J & Wookey P (2012) Global assessment of experimental climate warming on tundra vegetation: Heterogeneity over space and time. Ecology Letters, 15 (2), pp. 164-175. https://doi.org/10.1111/j.1461-0248.2011.01716.x
Hartley I, Hopkins D, Sommerkorn M & Wookey P (2010) The response of organic matter mineralisation to nutrient and substrate additions in sub-arctic soils. Soil Biology and Biochemistry, 42 (1), pp. 92-100. https://doi.org/10.1016/j.soilbio.2009.10.004
Post E, Forchhammer MC, Bret-Harte MS, Callaghan TV, Christensen TR, Elberling B, Fox AD, Gilg O, Hik DS, Hoye TT, Ims RA, Jeppesen E, Klein DR, Madsen J, McGuire AD, Rysgaard S, Schindler DE, Stirling I, Tamstorf MP, Tyler NJC, van der Wal R, Wookey P, Schmidt NM & Aastrup P (2009) Ecological Dynamics Across the Arctic Associated with Recent Climate Change. Science, 325 (5946), pp. 1355-1358. http://www.sciencemag.org/cgi/content/abstract/325/5946/1355; https://doi.org/10.1126/science.1173113
Hartley I, Hopkins D, Garnett MH, Sommerkorn M & Wookey P (2009) No evidence for compensatory thermal adaptation of soil microbial respiration in the study of Bradford et al. (2008). Ecology Letters, 12 (7), pp. E12-E14. https://doi.org/10.1111/j.1461-0248.2009.01300.x
Garnett MH, Hartley I, Sommerkorn M & Wookey P (2009) A passive sampling method for radiocarbon analysis of soil respiration using molecular sieve. Soil Biology and Biochemistry, 41 (7), pp. 1450-1456. http://www.sciencedirect.com/science/journal/00380717; https://doi.org/10.1016/j.soilbio.2009.03.024
Wookey P, Aerts R, Bardgett RD, Baptist F, Brathen KA, Cornelissen JHC, Gough L, Hartley I, Hopkins D, Lavorel S & Shaver GR (2009) Ecosystem feedbacks and cascade processes: understanding their role in the responses of arctic and alpine ecosystems to environmental change. Global Change Biology, 15 (5), pp. 1153-1172. https://doi.org/10.1111/j.1365-2486.2008.01801.x
Sjogersten S & Wookey P (2009) The Impact of Climate Change on Ecosystem Carbon Dynamics at the Scandinavian Mountain Birch Forest–Tundra Heath Ecotone. AMBIO: A Journal of the Human Environment, 38 (1), pp. 2-10. https://doi.org/10.1579/0044-7447-38.1.2
Hartley I, Hopkins D, Garnett MH, Sommerkorn M & Wookey P (2008) Soil microbial respiration in arctic soil does not acclimate to temperature. Ecology Letters, 11 (10), pp. 1092-1100. https://doi.org/10.1111/j.1461-0248.2008.01223.x
Sjogersten S, Melander E & Wookey P (2007) Depth distribution of net methanotrophic activity at a mountain birch forest-tundra heath ecotone, northern Sweden. Arctic, Antarctic, and Alpine Research, 39 (3), pp. 477-480. https://doi.org/10.1657/1523-0430%2806-009%29%5BSJOGERSTEN%5D2.0.CO%3B2
Walker MD, Wahren CH, Hollister RD, Henry GHR, Ahlquist LE, Alatalo JM, Bret-Harte MS, Calef MP, Callaghan TV, Carroll AB, Epstein HE, Jonsdottir IS, Klein JA, Magnussonm B, Molau U, Oberbauer SF, Rewa SP, Robinson CH, Shaver GR, Suding KN, Thompson CC, Tolvanen A, Totland O, Turner PL, Tweedie CE, Webber PJ & Wookey P (2006) Plant community responses to experimental warming across the tundra biome. Proceedings of the National Academy of Sciences, 103 (5), pp. 1342-1346. https://doi.org/10.1073/pnas.0503198103
Sjogersten S & Wookey P (2005) The role of soil organic matter quality and physical environment for nitrogen mineralization at the forest-tundra ecotone in Fennoscandia. Arctic, Antarctic, and Alpine Research, 37 (1), pp. 118-126. https://doi.org/10.1657/1523-0430%282005%29037%5B0118%3ATROSOM%5D2.0.CO%3B2
Sjogersten S & Wookey P (2004) Decomposition of mountain birch leaf litter at the forest-tundra ecotone in the Fennoscandian mountains in relation to climate and soil conditions. Plant and Soil, 262 (1-2), pp. 215-227. https://doi.org/10.1023/B%3APLSO.0000037044.63113.fe
Cooper EJ & Wookey P (2003) Floral Herbivory of Dryas octopetala by Svalbard Reindeer. Arctic, Antarctic, and Alpine Research, 35 (3), pp. 369-376. https://doi.org/10.1657/1523-0430%282003%29035%5B0369%3AFHODOB%5D2.0.CO%3B2
Sjogersten S, Turner BL, Mahieu N, Condron LM & Wookey P (2003) Soil organic matter biochemistry and potential susceptibility to climatic change across the forest-tundra ecotone in the Fennoscandian mountains. Global Change Biology, 9 (5), pp. 759-772. https://doi.org/10.1046/j.1365-2486.2003.00598.x
Sjogersten S & Wookey P (2002) Climatic and resource quality controls on soil respiration across a forest-tundra ecotone in Swedish Lapland. Soil Biology and Biochemistry, 34 (11), pp. 1633-1646. https://doi.org/10.1016/S0038-0717%2802%2900147-5
Sjogersten S & Wookey P (2002) Spatio-temporal variability and environmental controls of methane fluxes at the forest-tundra ecotone in the Fennoscandian mountains. Global Change Biology, 8 (9), pp. 885-894. https://doi.org/10.1046/j.1365-2486.2002.00522.x
Gough L, Wookey P & Shaver GR (2002) Dry heath arctic tundra responses to long-term nutrient and light manipulation. Arctic, Antarctic, and Alpine Research, 34 (2), pp. 211-218. https://doi.org/10.2307/1552473
Aanes R, Saether B, Smith FM, Cooper EJ, Wookey P & Oritsland NA (2002) The Arctic Oscillation predicts effects of climate change in two trophic levels in a high-arctic ecosystem. Ecology Letters, 5 (3), pp. 445-453. https://doi.org/10.1046/j.1461-0248.2002.00340.x
Wookey P, Bol R, Caseldine CJ & Harkness DD (2002) Surface age, ecosystem development, and C isotope signatures of respired CO2 in an alpine environment, north Iceland. Arctic, Antarctic, and Alpine Research, 34 (1), pp. 76-87. https://doi.org/10.2307/1552511
Cooper EJ & Wookey P (2001) Field measurements of the growth rates of forage lichens, and the implications of grazing by Svalbard reindeer. Symbiosis, 31 (1-3), pp. 173-186. https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034917917&partnerID=40&md5=bd08866d7730cbafd2df6522030ca3a7
Cooper EJ, Smith FM & Wookey P (2001) Increased rainfall ameliorates the negative effect of trampling on the growth of High Arctic forage lichens. Symbiosis, 31 (1-3), pp. 153-171. https://www.scopus.com/record/display.uri?eid=2-s2.0-0034921540&origin=resultslist&sort=plf-f&src=s&st1=Increased+rainfall+ameliorates+the+negative+effect+of+trampling+on+the+growth+of+High+Arctic+forage+lichens+&st2=&sid=a10ec9212f55966a54b5035a20b7bad9&s
Bradford M, Ineson P, Wookey P & Lappin-Scott H (2001) The effects of acid nitrogen and acid sulphur deposition on CH4 oxidation in a forest soil: A laboratory study. Soil Biology and Biochemistry, 33 (12-13), pp. 1695-1702. https://doi.org/10.1016/S0038-0717%2801%2900091-8
Bradford M, Ineson P, Wookey P & Lappin-Scott H (2001) Role of CH4 oxidation, production and transport in forest soil CH4 flux. Soil Biology and Biochemistry, 33 (12-13), pp. 1625-1631. https://doi.org/10.1016/S0038-0717%2801%2900078-5
Bradford M, Wookey P, Ineson P & Lappin-Scott H (2001) Controlling factors and effects of chronic nitrogen and sulphur deposition on methane oxidation in a temperate forest soil. Soil Biology and Biochemistry, 33 (1), pp. 93-102. https://doi.org/10.1016/S0038-0717%2800%2900118-8
Bradford M, Ineson P, Wookey P & Lappin-Scott H (2000) Soil CH4 oxidation: response to forest clearcutting and thinning. Soil Biology and Biochemistry, 32 (7), pp. 1035-1038. https://doi.org/10.1016/S0038-0717%2800%2900007-9
Wookey P, Arft AM, Walker MD, Gurevitch J, Alatalo JM, Bret-Harte S, Dale M, Diemer M, Gugerli F, Henry GHR, Jones MH, Hollister RD, Jonsdottir I, Laine K & Levesque E (1999) Responses of Tundra plants to experimental warming: Meta-analysis of the International Tundra Experiment. Ecological Monographs, 69 (4), pp. 491-511. https://doi.org/10.1890/0012-9615%281999%29069%5B0491%3AROTPTE%5D2.0.CO%3B2
Hodkinson ID & Wookey P (1999) Functional ecology of soil organisms in tundra ecosystems: Towards the future. Applied Soil Ecology, 11 (2-3), pp. 111-126. https://doi.org/10.1016/S0929-1393%2898%2900142-5
Robinson CH, Wookey P, Lee JA, Callaghan TV & Press MC (1998) Plant community responses to simulated environmental change at a high arctic polar semi-desert. Ecology, 79 (3), pp. 856-866. https://doi.org/10.1890/0012-9658%281998%29079%5B0856%3APCRTSE%5D2.0.CO%3B2
Wookey P & Robinson CH (1997) Responsiveness and resilience of high Arctic ecosystems to environmental change. Variation and Evolution in Arctic and Alpine Plants - VI International Symposium of International Organisation of Plant Biosystematists (IOPB). Opera Botanica, (132), pp. 215-232. https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030729011&partnerID=40&md5=927cca2e2a54a0378dfe7438a44328cd
Welker JM, Molau U, Parsons AN, Robinson CH & Wookey P (1997) Responses of Dryas octopetala to ITEX environmental manipulations: a synthesis with circumpolar comparisons. Global Change Biology, 3 (S1), pp. 61-73. https://doi.org/10.1111/j.1365-2486.1997.gcb143.x
Robinson CH, Wookey P, Parsons AN, Potter JA, Callaghan TV, Lee JA, Press MC & Welker JM (1995) Responses of plant litter decomposition and nitrogen mineralisation to simulated environmental change in a high arctic polar semi-desert and a subarctic dwarf shrub heath. Oikos, 74 (3), pp. 503-512. https://doi.org/10.2307/3545996
Wookey P, Robinson CH, Parsons AN, Welker JM, Press MC, Callaghan TV & Lee JA (1995) Environmental constraints on the growth, photosynthesis and reproductive development of Dryas octopetala at a high Arctic polar semi-desert, Svalbard. Oecologia, 102 (4), pp. 478-489. https://doi.org/10.1007/BF00341360
Parsons AN, Press MC, Wookey P, Welker JM, Robinson CH, Callaghan TV & Lee JA (1995) Growth responses of Calamagrostis lapponica to simulated environmental change in the sub-arctic. Oikos, 72 (1), pp. 61-66. https://doi.org/10.2307/3546038
Parsons AN, Welker JM, Wookey P, Press MC, Callaghan TV & Lee JA (1994) Growth responses of four sub-Arctic dwarf shrubs to simulated environmental change. Journal of Ecology, 82 (2), pp. 307-318. https://doi.org/10.2307/2261298
Wookey P, Welker JM, Parsons AN, Press MC, Callaghan TV & Lee JA (1994) Differential growth, allocation and photosynthetic responses of Polygonum viviparum to simulated environmental change at a high Arctic polar semi-desert. Oikos, 70 (1), pp. 131-139. https://doi.org/10.2307/3545708
Welker JM, Wookey P, Parsons AN, Press MC, Callaghan TV & Lee JA (1993) Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard. Oecologia, 95 (4), pp. 463-469. https://doi.org/10.1007/BF00317428
Wookey P, Parsons AN, Welker JM, Potter JA, Callaghan TV, Lee JA & Press MC (1993) Comparative responses of phenology and reproductive development to simulated environmental change in sub-Arctic and high Arctic plants. Oikos, 67 (3), pp. 490-502. https://doi.org/10.2307/3545361
Wookey P & Ineson P (1991) Chemical changes in decomposing forest litter in response to atmospheric sulphur dioxide. Journal of Soil Science, 42 (4), pp. 615-628. https://doi.org/10.1111/j.1365-2389.1991.tb00108.x
Wookey P & Ineson P (1991) Combined use of open-air and indoor fumigation systems to study effects of SO2 on leaching processes in Scots pine litter. Environmental Pollution, 74 (4), pp. 325-343. https://doi.org/10.1016/0269-7491%2891%2990079-C
Wookey P, Atkinson CJ, Mansfield TA & Wilkinson JR (1991) Control of plant water deficits using the 'snow and tingey system' and their influence on the water relations and growth of sunflower. Journal of Experimental Botany, 42 (5), pp. 589-595. https://doi.org/10.1093/jxb/42.5.589
Atkinson CJ, Wookey P & Mansfield TA (1991) Atmospheric pollution and the sensitivity of stomata on barley leaves to abscisic acid and carbon dioxide. New Phytologist, 117 (4), pp. 535-541. https://doi.org/10.1111/j.1469-8137.1991.tb00958.x
Wookey P, Ineson P & Mansfield TA (1991) Effects of atmospheric sulphur dioxide on microbial activity in decomposing forest litter. Agriculture, Ecosystems and Environment, 33 (3), pp. 263-280. https://doi.org/10.1016/0167-8809%2891%2990006-J