Geraldine D. Ryan

1.3k total citations
14 papers, 923 citations indexed

About

Geraldine D. Ryan is a scholar working on Plant Science, Ecology, Evolution, Behavior and Systematics and Atmospheric Science. According to data from OpenAlex, Geraldine D. Ryan has authored 14 papers receiving a total of 923 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Plant Science, 4 papers in Ecology, Evolution, Behavior and Systematics and 3 papers in Atmospheric Science. Recurrent topics in Geraldine D. Ryan's work include Plant Parasitism and Resistance (6 papers), Plant responses to elevated CO2 (6 papers) and Plant and fungal interactions (4 papers). Geraldine D. Ryan is often cited by papers focused on Plant Parasitism and Resistance (6 papers), Plant responses to elevated CO2 (6 papers) and Plant and fungal interactions (4 papers). Geraldine D. Ryan collaborates with scholars based in Canada, New Zealand and United Kingdom. Geraldine D. Ryan's co-authors include Jonathan A. Newman, Emily A. Robinson, N. Mrosovsky, Michael C. James, Susanne Rasmussen, A. J. Parsons, Hong Xue, Karl Fraser, Barry J. Shelp and Heather A. Hager and has published in prestigious journals such as New Phytologist, Oecologia and Plant Cell & Environment.

In The Last Decade

Geraldine D. Ryan

14 papers receiving 893 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Geraldine D. Ryan Canada	12	532	361	251	183	118	14	923
A. Donald A′Bear United Kingdom	12	295 0.6×	192 0.5×	161 0.6×	197 1.1×	107 0.9×	13	574
Kezia Goldmann Germany	14	487 0.9×	338 0.9×	162 0.6×	180 1.0×	172 1.5×	28	722
Ivan P. Edwards United States	11	401 0.8×	170 0.5×	129 0.5×	312 1.7×	74 0.6×	13	706
Laurence Affre France	18	471 0.9×	180 0.5×	483 1.9×	202 1.1×	384 3.3×	45	916
Damian P. Donnelly United Kingdom	10	704 1.3×	299 0.8×	252 1.0×	78 0.4×	149 1.3×	15	838
Bettina Zimdars Germany	9	206 0.4×	128 0.4×	214 0.9×	124 0.7×	65 0.6×	10	487
Minna Santalahti Finland	12	230 0.4×	182 0.5×	110 0.4×	151 0.8×	103 0.9×	13	474
E. R. Jasper Wubs Netherlands	16	455 0.9×	87 0.2×	279 1.1×	274 1.5×	312 2.6×	27	944
Nathaniel S. Pope United States	16	299 0.6×	440 1.2×	659 2.6×	105 0.6×	161 1.4×	34	891
Michael E. Van Nuland United States	16	706 1.3×	305 0.8×	298 1.2×	221 1.2×	469 4.0×	28	1.1k

Countries citing papers authored by Geraldine D. Ryan

Since Specialization

Citations

This map shows the geographic impact of Geraldine D. Ryan'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 Geraldine D. Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Geraldine D. Ryan more than expected).

Fields of papers citing papers by Geraldine D. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Geraldine D. Ryan. 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 Geraldine D. Ryan. The network helps show where Geraldine D. Ryan may publish in the future.

Co-authorship network of co-authors of Geraldine D. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of Geraldine D. Ryan. A scholar is included among the top collaborators of Geraldine D. Ryan 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 Geraldine D. Ryan. Geraldine D. Ryan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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14 of 14 papers shown

Hager, Heather A., Geraldine D. Ryan, & Jonathan A. Newman. (2020). Effects of elevated CO2 on competition between native and invasive grasses. Oecologia. 192(4). 1099–1110. 2 indexed citations

Hager, Heather A., et al.. (2016). Effects of elevated CO2 on photosynthetic traits of native and invasive C3 and C4 grasses. BMC Ecology. 16(1). 28–28. 26 indexed citations

Ryan, Geraldine D., et al.. (2016). North American invasion of Spotted-Wing Drosophila (Drosophila suzukii): A mechanistic model of population dynamics. Ecological Modelling. 336. 70–81. 27 indexed citations

Ryan, Geraldine D., et al.. (2016). Thermal Tolerances of the Spotted-Wing DrosophilaDrosophila suzukii(Diptera: Drosophilidae). Journal of Economic Entomology. 109(2). 746–752. 104 indexed citations

Ryan, Geraldine D., Emma V. A. Sylvester, Barry J. Shelp, & Jonathan A. Newman. (2015). Towards an understanding of how phloem amino acid composition shapes elevated CO ₂ ‐induced changes in aphid population dynamics. Ecological Entomology. 40(3). 247–257. 24 indexed citations

Ryan, Geraldine D., Susanne Rasmussen, A. J. Parsons, & Jonathan A. Newman. (2015). The effects of carbohydrate supply and host genetic background on Epichloë endophyte and alkaloid concentrations in perennial ryegrass. Fungal ecology. 18. 115–125. 21 indexed citations

Rasmussen, Susanne, A. J. Parsons, Hong Xue, et al.. (2014). Transcript profiling of fructan biosynthetic pathway genes reveals association of a specific fructosyltransferase isoform with the high sugar trait in Lolium perenne. Journal of Plant Physiology. 171(7). 475–485. 11 indexed citations

Ryan, Geraldine D., et al.. (2014). Aphid and host‐plant genotype × genotype interactions under elevated CO ₂ . Ecological Entomology. 39(3). 309–315. 11 indexed citations

Ryan, Geraldine D., et al.. (2014). Development, Reproductive Output and Population Growth of the Fruit Fly Pest <I>Drosophila suzukii</I> (Diptera: Drosophilidae) on Artificial Diet. Journal of Economic Entomology. 107(4). 1392–1398. 113 indexed citations

10.

Ryan, Geraldine D., et al.. (2014). Phloem phytochemistry and aphid responses to elevated CO ₂ , nitrogen fertilization and endophyte infection. Agricultural and Forest Entomology. 16(3). 273–283. 25 indexed citations

11.

Ryan, Geraldine D., Susanne Rasmussen, Hong Xue, A. J. Parsons, & Jonathan A. Newman. (2013). Metabolite analysis of the effects of elevated CO₂ and nitrogen fertilization on the association between tall fescue (Schedonorus arundinaceus) and its fungal symbiont Neotyphodium coenophialum. Plant Cell & Environment. 37(1). 204–212. 47 indexed citations

12.

Robinson, Emily A., Geraldine D. Ryan, & Jonathan A. Newman. (2012). A meta‐analytical review of the effects of elevated CO₂ on plant–arthropod interactions highlights the importance of interacting environmental and biological variables. New Phytologist. 194(2). 321–336. 292 indexed citations

13.

Parsons, A. J., Hong Xue, Karl Fraser, et al.. (2011). Competition between foliar Neotyphodium lolii endophytes and mycorrhizal Glomus spp. fungi in Lolium perenne depends on resource supply and host carbohydrate content. Functional Ecology. 25(4). 910–920. 91 indexed citations

14.

Mrosovsky, N., Geraldine D. Ryan, & Michael C. James. (2009). Leatherback turtles: The menace of plastic. Marine Pollution Bulletin. 58(2). 287–289. 129 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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