A full list of publications can be found on my Google
Scholar page. Feel free to email me to request copies any of these
articles.
Hagan JG, Gamfeldt L, Brophy C, Fanin N, Gamfeldt L, Hautier Y, Manning P, Meyer S, Slade E, Rogier F (in prep.). A guide to quantifying multifunctionality in ecology, conservation and ecosystem management.
Hagan JG, Bergmann R, Snoeks J, Dolmans V, Vanschoenwinkel B (in prep). InvTraitR: Improving biomass estimations for freshwater invertebrates using taxonomic backbones and habitat similarity. Manuscript and R-package.
Hagan JG (2023). Compensation alters estimates of the number of species required to maintain ecosystem functioning across an emersion gradient: A case study with intertidal macroalgae. Functional Ecology Early view.
Hagan JG, Henn JJ, Osterman WHA (2022). Matters Arising: Plant traits alone are good predictors of ecosystem properties when used carefully. Nature Ecology and Evolution 7. Response to: van der Plas et al. (2020, Nature Ecology and Evolution).
Hagan JG, Schrofner-Brunner B, Gamfeldt L (2023, preprint). Quantifying biodiversity effects on ecosystem functioning across space and time in natural and semi-natural ecosystems. ResearchSquare.
Gould E, … Hagan JG, et al. (2023, preprint). Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology. EcoEvoRxiv.
Gamfeldt L, Hagan JG, Farewell A, Palm M, Warringer J, Roger F. (2023). Scaling-up the biodiversity–ecosystem functioning relationship: the effect of environmental heterogeneity on transgressive overyielding. Oikos 2023: e09652.
Scrofner-Brunner B, Hagan JG, Cappelatti L, Hassellöv J, Wißmann M, Gamfeldt L (2023). Macroalgae maintain growth outside their observed distributions: Implications for biodiversity-ecosystem functioning at landscape scales. Journal of Ecology 111: 1362-1373.
Hagan JG, Gamfeldt L, Vanschoenwinkel BJ (2021). We should not necessarily expect positive relationships between biodiversity and ecosystem functioning in observational field data. Ecology Letters 24 (12), 2537-2548.
Bushke FT, Hagan JG, Santini S, Coetzee BWT (2021). Random population fluctuations bias the Living Planet Index. Nature Ecology and Evolution 5: 1145–1152.
Olofsson M, Hagan JG, Karlson B, Gamfeldt L (2020). Large seasonal and spatial variation in nano- and microphytoplankton diversity along a Baltic Sea—North Sea salinity gradient. Scientific Reports 10: 17666.
Joseph GS, Seymour CL, Coetzee BW, Ndlovu M, Deng L, Fowler K, Hagan JG, Brooks BJ, Seminara JA, Foord SH. (2018). Elephants, termites and mound thermoregulation in a progressively warmer world. Landscape Ecology 33: 731-742.
Hagan JG, Du Toit JCO, Cramer MD. (2017). Long-term
livestock grazing influences the recruitment success of epigeal
termites: Insights from >75-year grazing experiment in the Karoo,
South Africa. African Journal of Range and Forage Science
34: 123-132.
Sanden O with expert commentary from Hagan JG (2022). Ny studie i Science: Klimatkrisen kan orsaka massdöd till havs. Syre.
Hagan JG, Cramer MD (2018). Termites and grazers: a complex, subtle relationship. Farmer’s Weekly.