Thomas J. Givnish

17.6k total citations · 7 hit papers
128 papers, 12.6k citations indexed

About

Thomas J. Givnish is a scholar working on Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation and Plant Science. According to data from OpenAlex, Thomas J. Givnish has authored 128 papers receiving a total of 12.6k indexed citations (citations by other indexed papers that have themselves been cited), including 82 papers in Ecology, Evolution, Behavior and Systematics, 49 papers in Nature and Landscape Conservation and 45 papers in Plant Science. Recurrent topics in Thomas J. Givnish's work include Plant and animal studies (57 papers), Plant Diversity and Evolution (48 papers) and Ecology and Vegetation Dynamics Studies (47 papers). Thomas J. Givnish is often cited by papers focused on Plant and animal studies (57 papers), Plant Diversity and Evolution (48 papers) and Ecology and Vegetation Dynamics Studies (47 papers). Thomas J. Givnish collaborates with scholars based in United States, Australia and Canada. Thomas J. Givnish's co-authors include Kenneth J. Sytsma, Mark K. Leach, L. D. Gottlieb, S. Appanah, Peter S. Ashton, Thomas B. Patterson, J. ANTONIO VÁZQUEZ-GARCÍA, Geerat J. Vermeij, Paul E. Berry and Timothy M. Evans and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Thomas J. Givnish

125 papers receiving 11.9k citations

Hit Papers

On the Economy of Plant Form and Function. 1987 2026 2000 2013 1988 1998 1987 1988 2011 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. On the Economy of Plant Form and Function.
    1988 849 citations Thomas J. Givnish et al. profile →
  2. Molecular Evolution and Adaptive Radiation.
    1998 789 citations Thomas J. Givnish, Kenneth J. Sytsma et al. Systematic Botany profile →
  3. COMPARATIVE STUDIES OF LEAF FORM: ASSESSING THE RELATIVE ROLES OF SELECTIVE PRESSURES AND PHYLOGENETIC CONSTRAINTS
    1987 522 citations Thomas J. Givnish New Phytologist profile →
  4. Staggered Flowering in the Dipterocarpaceae: New Insights Into Floral Induction and the Evolution of Mast Fruiting in the Aseasonal Tropics
    1988 474 citations Thomas J. Givnish et al. profile →
  5. Phylogeny, adaptive radiation, and historical biogeography in Bromeliaceae: Insights from an eight‐locus plastid phylogeny
    2011 389 citations Thomas J. Givnish, Timothy M. Evans et al. American Journal of Botany profile →
  6. Orchid phylogenomics and multiple drivers of their extraordinary diversification
    2015 379 citations Thomas J. Givnish, Daniel Spalink et al. profile →
  7. Adaptive radiation, correlated and contingent evolution, and net species diversification in Bromeliaceae
    2013 299 citations Thomas J. Givnish, Timothy M. Evans et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Thomas J. Givnish United States 58 7.3k 4.7k 4.7k 2.8k 2.4k 128 12.6k
R. Toby Pennington United Kingdom 52 6.7k 0.9× 3.5k 0.7× 2.8k 0.6× 2.8k 1.0× 1.3k 0.5× 161 10.7k
H. Peter Linder Switzerland 51 7.0k 1.0× 5.0k 1.1× 3.5k 0.7× 2.3k 0.8× 1.5k 0.6× 160 12.3k
Phyllis D. Coley United States 44 5.7k 0.8× 4.7k 1.0× 4.2k 0.9× 1.1k 0.4× 1.3k 0.5× 95 11.1k
Sherwin Carlquist United States 50 7.9k 1.1× 2.6k 0.5× 4.5k 1.0× 3.6k 1.3× 2.2k 0.9× 354 12.5k
Mary T. K. Arroyo Chile 43 4.7k 0.6× 2.9k 0.6× 3.0k 0.6× 1.3k 0.5× 871 0.4× 147 7.2k
Ove Eriksson Sweden 59 6.8k 0.9× 8.2k 1.7× 5.9k 1.3× 874 0.3× 1.8k 0.7× 209 12.9k
Nicolas Salamin Switzerland 53 4.3k 0.6× 2.4k 0.5× 2.6k 0.5× 2.8k 1.0× 1.0k 0.4× 160 9.9k
Susan J. Mazer United States 43 6.3k 0.9× 5.0k 1.1× 4.2k 0.9× 1.4k 0.5× 1.1k 0.5× 151 9.3k
Ladislav Mucina South Africa 40 3.5k 0.5× 3.9k 0.8× 3.6k 0.8× 637 0.2× 1.7k 0.7× 252 9.7k
Jeannine Cavender‐Bares United States 65 5.1k 0.7× 7.9k 1.7× 3.9k 0.8× 1.3k 0.5× 4.9k 2.0× 194 15.6k

Countries citing papers authored by Thomas J. Givnish

Since Specialization
Citations

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

Fields of papers citing papers by Thomas J. Givnish

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas J. Givnish. 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 Thomas J. Givnish. The network helps show where Thomas J. Givnish may publish in the future.

Co-authorship network of co-authors of Thomas J. Givnish

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas J. Givnish. A scholar is included among the top collaborators of Thomas J. Givnish 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 Thomas J. Givnish. Thomas J. Givnish 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.
Landis, Jacob B., et al.. (2025). Reference genome of Calochortus tolmiei Hook. & Arn. (Liliaceae), a cat's ear mariposa lily. G3 Genes Genomes Genetics. 15(3).
2.
Givnish, Thomas J., et al.. (2025). Flood‐driven survival and growth of dominant C4 grasses helps set their distributions along tallgrass prairie moisture gradients. American Journal of Botany. 112(1). e16457–e16457.
3.
Krieg, Christopher P., Daniel Spalink, Alan R. Lemmon, et al.. (2024). Chromosomal evolution, environmental heterogeneity, and migration drive spatial patterns of species richness in Calochortus (Liliaceae). Proceedings of the National Academy of Sciences. 121(10). e2305228121–e2305228121. 4 indexed citations
4.
Landis, Jacob B., Fay‐Wei Li, Jing Zhang, et al.. (2023). Balancing read length and sequencing depth: Optimizing Nanopore long‐read sequencing for monocots with an emphasis on the Liliales. Applications in Plant Sciences. 11(3). e11524–e11524. 15 indexed citations
5.
Timilsena, Prakash Raj, Craig F. Barrett, Alma Piñeyro‐Nelson, et al.. (2022). Phylotranscriptomic Analyses of Mycoheterotrophic Monocots Show a Continuum of Convergent Evolutionary Changes in Expressed Nuclear Genes From Three Independent Nonphotosynthetic Lineages. Genome Biology and Evolution. 15(1). 13 indexed citations
6.
Henn, Jonathan J., et al.. (2021). Mistletoes and their eucalypt hosts differ in the response of leaf functional traits to climatic moisture supply. Oecologia. 195(3). 759–771. 11 indexed citations
7.
Givnish, Thomas J., Ricardo Kriebel, Jeffrey P. Rose, et al.. (2020). Adaptive associations among life history, reproductive traits, environment, and origin in the Wisconsin angiosperm flora. American Journal of Botany. 107(12). 1677–1692. 5 indexed citations
8.
Fleischmann, Andreas, Jan Schlauer, Stephen A. Smith, & Thomas J. Givnish. (2018). Evolution of carnivory in angiosperms. Oxford University Press eBooks. 29 indexed citations
9.
Givnish, Thomas J., et al.. (2018). Why are plants carnivorous? Cost/benefit analysis, whole-plant growth, and the context-specific advantages of botanical carnivory. Oxford University Press eBooks. 9 indexed citations
10.
Spalink, Daniel, Ricardo Kriebel, Pan Li, et al.. (2018). Spatial phylogenetics reveals evolutionary constraints on the assembly of a large regional flora. American Journal of Botany. 105(11). 1938–1950. 19 indexed citations
11.
Givnish, Thomas J., Mercedes Ames, Joel R. McNeal, et al.. (2010). Assembling the Tree of the Monocotyledons: Plastome Sequence Phylogeny and Evolution of Poales1. Annals of the Missouri Botanical Garden. 97(4). 584–616. 189 indexed citations
12.
Evans, Timothy M., Kenneth J. Sytsma, Robert B. Faden, & Thomas J. Givnish. (2009). Phylogenetic Relationships in the Commelinaceae: II. A Cladistic Analysis of rbcL Sequences and Morphology. Systematic Botany. 28(2). 270–292. 34 indexed citations
13.
López, Omar R., et al.. (2008). Leaf phenology in relation to canopy closure in southern Appalachian trees. American Journal of Botany. 95(11). 1395–1407. 58 indexed citations
14.
Majer, Jonathan, Robert R. Dunn, Aaron D. Gove, Timothy G. Barraclough, & Thomas J. Givnish. (2007). Convergent evolution of an ant-plant mutualism across plant families, continents and time. Evolutionary ecology research. 9(8). 1349–1362. 40 indexed citations
15.
Givnish, Thomas J.. (2005). On the economy of plant form and function : proceedings of the Sixth Maria Moors Cabot Symposium, "Evolutionary Constraints on Primary Productivity: Adaptive Patterns of Energy Capture in Plants," Harvard Forest, August 1983. Cambridge University Press eBooks. 38 indexed citations
16.
Gargas, Andrea, et al.. (2005). The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 2. Plant competition. Mycorrhiza. 15(7). 555–562. 8 indexed citations
17.
18.
Givnish, Thomas J., Kendra C. Millam, Timothy M. Evans, et al.. (2004). Ancient Vicariance or Recent Long‐Distance Dispersal? Inferences about Phylogeny and South American–African Disjunctions in Rapateaceae and Bromeliaceae Based onndhF Sequence Data. International Journal of Plant Sciences. 165(S4). S35–S54. 186 indexed citations
19.
Gargas, Andrea, et al.. (2004). Relationships among arbuscular mycorrhizal fungi, vascular plants and environmental conditions in oak savannas. New Phytologist. 164(3). 493–504. 246 indexed citations
20.
Givnish, Thomas J., Roy W. McDiarmid, & William R. Buck. (1986). Fire adaptation in Neblinaria celiae (Theaceae), a high-elevation rosette shrub endemic to a wet equatorial tepui. Oecologia. 70(4). 481–485. 23 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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