Varun Varma

677 total citations
16 papers, 439 citations indexed

About

Varun Varma is a scholar working on Nature and Landscape Conservation, Plant Science and Global and Planetary Change. According to data from OpenAlex, Varun Varma has authored 16 papers receiving a total of 439 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Nature and Landscape Conservation, 6 papers in Plant Science and 6 papers in Global and Planetary Change. Recurrent topics in Varun Varma's work include Ecology and Vegetation Dynamics Studies (7 papers), Plant Water Relations and Carbon Dynamics (3 papers) and Remote Sensing in Agriculture (2 papers). Varun Varma is often cited by papers focused on Ecology and Vegetation Dynamics Studies (7 papers), Plant Water Relations and Carbon Dynamics (3 papers) and Remote Sensing in Agriculture (2 papers). Varun Varma collaborates with scholars based in United Kingdom, India and United States. Varun Varma's co-authors include Daniel P. Bebber, Alistair J. Campbell, Jacobus C. Biesmeijer, Felix Wäckers, Anand M. Osuri, Mahesh Sankaran, Christine Fletcher, David Kenfack, Matt Bradford and Francesco Rovero and has published in prestigious journals such as Nature Communications, Philosophical Transactions of the Royal Society B Biological Sciences and Nature Climate Change.

In The Last Decade

Varun Varma

14 papers receiving 422 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Varun Varma United Kingdom	10	195	163	135	119	82	16	439
Sándor Bordács Hungary	7	146 0.7×	112 0.7×	152 1.1×	97 0.8×	107 1.3×	18	464
Sarah Redlich Germany	9	134 0.7×	170 1.0×	122 0.9×	110 0.9×	83 1.0×	20	439
Eva Diehl Germany	8	138 0.7×	214 1.3×	148 1.1×	106 0.9×	118 1.4×	12	494
Andreas Flohre Germany	7	157 0.8×	249 1.5×	239 1.8×	220 1.8×	108 1.3×	7	522
Hsun‐Yi Hsieh United States	4	80 0.4×	146 0.9×	122 0.9×	88 0.7×	89 1.1×	5	321
R. C. Stuart United Kingdom	6	169 0.9×	188 1.2×	220 1.6×	184 1.5×	108 1.3×	11	491
Judith Girard Canada	4	90 0.5×	193 1.2×	182 1.3×	149 1.3×	102 1.2×	7	403
Yvonne Fabian Switzerland	11	101 0.5×	181 1.1×	105 0.8×	101 0.8×	86 1.0×	19	381
Friederike Riesch Germany	10	77 0.4×	110 0.7×	142 1.1×	179 1.5×	87 1.1×	18	384
Sarah Cusser United States	11	132 0.7×	241 1.5×	118 0.9×	65 0.5×	46 0.6×	17	416

Countries citing papers authored by Varun Varma

Since Specialization

Citations

This map shows the geographic impact of Varun Varma's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Varun Varma with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Varun Varma more than expected).

Fields of papers citing papers by Varun Varma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Varun Varma. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Varun Varma. The network helps show where Varun Varma may publish in the future.

Co-authorship network of co-authors of Varun Varma

This figure shows the co-authorship network connecting the top 25 collaborators of Varun Varma. A scholar is included among the top collaborators of Varun Varma based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Varun Varma. Varun Varma is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Varma, Varun, et al.. (2025). Extraction and physicochemical characterization of microcrystalline cellulose from canal weed (Eichhornia crassipes) biomass: Biomass valorization approach. International Journal of Biological Macromolecules. 323(Pt 2). 147203–147203.

Varma, Varun, et al.. (2025). Socio-economic factors constrain climate change adaptation in a tropical export crop. Nature Food. 6(4). 343–352. 3 indexed citations

Varma, Varun, Jonas Joerin, Daniel P. Bebber, et al.. (2023). Smallholder farmer resilience to extreme weather events in a global food value chain. Climatic Change. 176(11). 152–152. 6 indexed citations

Varma, Varun & Mahesh Sankaran. (2021). Nutrient deposition enhances post‐fire survival in non‐N‐fixing savanna tree seedlings. Journal of Vegetation Science. 32(2).

Osuri, Anand M., et al.. (2020). Hunting and Forest Modification Have Distinct Defaunation Impacts on Tropical Mammals and Birds. Frontiers in Forests and Global Change. 2. 16 indexed citations

Varma, Varun & Daniel P. Bebber. (2019). Climate change impacts on banana yields around the world. Nature Climate Change. 9(10). 752–757. 77 indexed citations

Chaloner, Thomas M., Helen N. Fones, Varun Varma, Daniel P. Bebber, & Sarah J. Gurr. (2019). A new mechanistic model of weather-dependent Septoria tritici blotch disease risk. Philosophical Transactions of the Royal Society B Biological Sciences. 374(1775). 20180266–20180266. 17 indexed citations

Varma, Varun, et al.. (2018). Nitrogen fixation ability explains leaf chemistry and arbuscular mycorrhizal responses to fertilization. Plant Ecology. 219(4). 391–401. 5 indexed citations

Kunin, William E., John Harte, Fangliang He, et al.. (2018). Upscaling biodiversity: estimating the species–area relationship from small samples. Ecological Monographs. 88(2). 170–187. 38 indexed citations

10.

Varma, Varun, et al.. (2018). Effects of increased N and P availability on biomass allocation and root carbohydrate reserves differ between N‐fixing and non‐N‐fixing savanna tree seedlings. Ecology and Evolution. 8(16). 8467–8476. 16 indexed citations

11.

Osuri, Anand M., Jayashree Ratnam, Varun Varma, et al.. (2016). Contrasting effects of defaunation on aboveground carbon storage across the global tropics. Nature Communications. 7(1). 11351–11351. 97 indexed citations

12.

Varma, Varun, et al.. (2016). Effects of nutrient addition and soil drainage on germination of N-fixing and non-N-fixing tropical dry forest tree species. Plant Ecology. 217(8). 1043–1054. 14 indexed citations

13.

Varma, Varun, et al.. (2014). Identifying geographic hot spots of reassortment in a multipartite plant virus. Evolutionary Applications. 7(5). 569–579. 6 indexed citations

14.

Benton, Tim G., et al.. (2014). Stressful environments can indirectly select for increased longevity. Ecology and Evolution. 4(7). 1176–1185. 13 indexed citations

15.

Varma, Varun & Anand M. Osuri. (2013). Black Spot: a platform for automated and rapid estimation of leaf area from scanned images. Plant Ecology. 214(12). 1529–1534. 29 indexed citations

16.

Campbell, Alistair J., Jacobus C. Biesmeijer, Varun Varma, & Felix Wäckers. (2012). Realising multiple ecosystem services based on the response of three beneficial insect groups to floral traits and trait diversity. Basic and Applied Ecology. 13(4). 363–370. 102 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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