Greg Spyreas

1.8k total citations
38 papers, 1.4k citations indexed

About

Greg Spyreas is a scholar working on Nature and Landscape Conservation, Ecology and Plant Science. According to data from OpenAlex, Greg Spyreas has authored 38 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Nature and Landscape Conservation, 20 papers in Ecology and 14 papers in Plant Science. Recurrent topics in Greg Spyreas's work include Ecology and Vegetation Dynamics Studies (23 papers), Rangeland and Wildlife Management (11 papers) and Botany, Ecology, and Taxonomy Studies (11 papers). Greg Spyreas is often cited by papers focused on Ecology and Vegetation Dynamics Studies (23 papers), Rangeland and Wildlife Management (11 papers) and Botany, Ecology, and Taxonomy Studies (11 papers). Greg Spyreas collaborates with scholars based in United States, Austria and Canada. Greg Spyreas's co-authors include Jeffrey W. Matthews, David J. Gibson, Adam S. Davis, Victoria Nuzzo, Richard A. Lankau, Anton G. Endress, David N. Zaya, Ian S. Pearse, Brenda Molano‐Flores and Jamie Ellis and has published in prestigious journals such as Proceedings of the National Academy of Sciences, PLoS ONE and Ecology.

In The Last Decade

Greg Spyreas

37 papers receiving 1.3k citations

Peers

Greg Spyreas
Kelly G. Lyons United States
Diane L. Larson United States
Emily C. Farrer United States
Ian T. Carroll United States
Rainer Waldhardt Germany
Jodi N. Price Australia
Sandra Díaz Argentina
Lara Souza United States
Valentin H. Klaus Switzerland
Sabine Tischew Germany
Kelly G. Lyons United States
Greg Spyreas
Citations per year, relative to Greg Spyreas Greg Spyreas (= 1×) peers Kelly G. Lyons

Countries citing papers authored by Greg Spyreas

Since Specialization
Citations

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

Fields of papers citing papers by Greg Spyreas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Greg Spyreas. 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 Greg Spyreas. The network helps show where Greg Spyreas may publish in the future.

Co-authorship network of co-authors of Greg Spyreas

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

All Works

20 of 20 papers shown
1.
Spyreas, Greg, et al.. (2025). What is Ecological Conservatism? A Template Analysis of Its Definitions. Natural Areas Journal. 45(2).
2.
Pearse, Ian S., Helen R. Sofaer, Stephanie N. Kivlin, et al.. (2023). Invasion‐mediated mutualism disruption is evident across heterogeneous environmental conditions and varying invasion intensities. Ecography. 2023(7). 7 indexed citations
3.
Beaury, Evelyn M., Jeffrey D. Corbin, Helen R. Sofaer, et al.. (2022). SPCIS: Standardized Plant Community with Introduced Status database. Ecology. 104(3). e3947–e3947. 9 indexed citations
4.
5.
Spyreas, Greg, et al.. (2020). Dramatic long-term restoration of an oak woodland due to multiple, sustained management treatments. PLoS ONE. 15(10). e0241061–e0241061. 5 indexed citations
6.
Molano‐Flores, Brenda, et al.. (2019). An Assessment of the Vulnerability of Illinois' Rarest Plant Species to Climate Change. Castanea. 84(2). 115–115. 5 indexed citations
7.
Spyreas, Greg. (2019). Floristic Quality Assessment: a critique, a defense, and a primer. Ecosphere. 10(8). 45 indexed citations
8.
Muthukrishnan, Ranjan, et al.. (2017). Lack of Impacts during Early Establishment Highlights a Short-Term Management Window for Minimizing Invasions from Perennial Biomass Crops. Frontiers in Plant Science. 8. 767–767. 5 indexed citations
9.
Spyreas, Greg, et al.. (2017). Biotic homogenization of regional wetland plant communities within short time‐scales in the presence of an aggressive invader. Journal of Ecology. 106(3). 1180–1190. 36 indexed citations
10.
Spyreas, Greg. (2016). Scale and Sampling Effects on Floristic Quality. PLoS ONE. 11(8). e0160693–e0160693. 17 indexed citations
11.
Matthews, Jeffrey W., Greg Spyreas, & Colleen M. Long. (2014). A null model test of Floristic Quality Assessment: Are plant species’ Coefficients of Conservatism valid?. Ecological Indicators. 52. 1–7. 50 indexed citations
12.
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Matthews, Jeffrey W. & Greg Spyreas. (2010). Convergence and divergence in plant community trajectories as a framework for monitoring wetland restoration progress. Journal of Applied Ecology. 47(5). 1128–1136. 150 indexed citations
14.
Lankau, Richard A., Victoria Nuzzo, Greg Spyreas, & Adam S. Davis. (2009). Evolutionary limits ameliorate the negative impact of an invasive plant. Proceedings of the National Academy of Sciences. 106(36). 15362–15367. 205 indexed citations
15.
Matthews, Jeffrey W., Greg Spyreas, & Anton G. Endress. (2009). Trajectories of vegetation‐based indicators used to assess wetland restoration progress. Ecological Applications. 19(8). 2093–2107. 137 indexed citations
16.
Spyreas, Greg & Jeffrey W. Matthews. (2006). FLORISTIC CONSERVATION VALUE, NESTED UNDERSTORY FLORAS, AND THE DEVELOPMENT OF SECOND-GROWTH FOREST. Ecological Applications. 16(4). 1351–1366. 49 indexed citations
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Spyreas, Greg, et al.. (2004). Non-native plant commonness and dominance in the forests, wetlands, and grasslands of Illinois, USA. Natural Areas Journal. 24(4). 290–299. 25 indexed citations
19.
Spyreas, Greg, et al.. (2003). Can volunteers provide reliable data for forest vegetation surveys. Natural Areas Journal. 23(3). 254–261. 55 indexed citations
20.
Spyreas, Greg, et al.. (2003). Vascular flora of the Pembroke Savannas, Kankakee County, Illinois. Illinois Digital Environment for Access to Learning and Scholarship (University of Illinois at Urbana-Champaign). 1 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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