Thomas P. Hahn

16.1k total citations · 2 hit papers
162 papers, 10.8k citations indexed

About

Thomas P. Hahn is a scholar working on Ecology, Evolution, Behavior and Systematics, Ecology and Global and Planetary Change. According to data from OpenAlex, Thomas P. Hahn has authored 162 papers receiving a total of 10.8k indexed citations (citations by other indexed papers that have themselves been cited), including 98 papers in Ecology, Evolution, Behavior and Systematics, 82 papers in Ecology and 36 papers in Global and Planetary Change. Recurrent topics in Thomas P. Hahn's work include Animal Behavior and Reproduction (87 papers), Avian ecology and behavior (59 papers) and Plant and animal studies (45 papers). Thomas P. Hahn is often cited by papers focused on Animal Behavior and Reproduction (87 papers), Avian ecology and behavior (59 papers) and Plant and animal studies (45 papers). Thomas P. Hahn collaborates with scholars based in United States, Sweden and Canada. Thomas P. Hahn's co-authors include Per Olsson, Carl Folke, Jon Norberg, John C. Wingfield, Creagh W. Breuner, Scott A. MacDougall‐Shackleton, Gregory F. Ball, Jamie M. Cornelius, Stephan J. Schoech and Haruka Wada and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and SHILAP Revista de lepidopterología.

In The Last Decade

Thomas P. Hahn

156 papers receiving 10.1k citations

Hit Papers

align trajectories

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.

ADAPTIVE GOVERNANCE OF SOCIAL-ECOLOGICAL SYSTEMS

2005 3.6k citations Carl Folke, Thomas P. Hahn et al. profile →
Social-Ecological Transformation for Ecosystem Management: the Development of Adaptive Co-management of a Wetland Landscape in Southern Sweden

2004 614 citations Per Olsson, Carl Folke et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Thomas P. Hahn United States	48	4.0k	3.7k	3.6k	1.5k	1.3k	162	10.8k
Nathalie Seddon United Kingdom	43	3.2k 0.8×	2.8k 0.7×	2.7k 0.8×	472 0.3×	723 0.5×	86	8.9k
Joanna Burger United States	74	3.4k 0.9×	4.7k 1.3×	10.7k 3.0×	2.5k 1.7×	1.3k 1.0×	728	23.7k
Andrea Manica United Kingdom	61	3.0k 0.8×	2.5k 0.7×	4.4k 1.2×	1.1k 0.7×	543 0.4×	240	13.8k
Joseph M. Kiesecker United States	60	2.7k 0.7×	7.0k 1.9×	3.9k 1.1×	432 0.3×	1.0k 0.8×	135	11.0k
John M. Marzluff United States	51	2.5k 0.6×	3.4k 0.9×	6.1k 1.7×	330 0.2×	356 0.3×	172	10.3k
John G. Robinson United States	48	1.7k 0.4×	2.3k 0.6×	4.4k 1.2×	367 0.3×	860 0.6×	89	8.4k
Karl L. Evans United Kingdom	49	2.4k 0.6×	3.6k 1.0×	5.1k 1.4×	361 0.2×	495 0.4×	121	10.1k
Erik Meijaard Australia	54	1.1k 0.3×	4.1k 1.1×	5.1k 1.4×	394 0.3×	639 0.5×	211	9.7k
Connie J. Clark United States	31	3.2k 0.8×	1.9k 0.5×	4.1k 1.2×	937 0.6×	229 0.2×	80	10.6k
John D. Pilgrim United Kingdom	20	2.2k 0.6×	2.8k 0.8×	3.6k 1.0×	250 0.2×	1.1k 0.8×	30	8.9k

Countries citing papers authored by Thomas P. Hahn

Since Specialization

Citations

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

Fields of papers citing papers by Thomas P. Hahn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Thomas P. Hahn

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

All Works

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20 of 20 papers shown

Young, Matthew A., et al.. (2025). Quantitative analysis of the flight calls and trills of Evening Grosbeaks (Coccothraustes vespertinus). SHILAP Revista de lepidopterología. 4.

Hahn, Thomas P., et al.. (2024). Sympatric breeding occurrence of two call types of Evening Grosbeak in Western Wyoming. SHILAP Revista de lepidopterología. 3. 1 indexed citations

Humple, Diana L., Thomas P. Hahn, Daizaburo Shizuka, et al.. (2024). Winter GPS tagging reveals home ranges during the breeding season for a boreal-nesting migrant songbird, the Golden-crowned Sparrow. PLoS ONE. 19(6). e0305369–e0305369.

Tyson, Chris, et al.. (2024). Experience and trust: the benefits of mate familiarity are realized through sex-specific specialization of parental roles in Cassin’s auklet. Royal Society Open Science. 11(12). 241258–241258.

Hahn, Thomas P., et al.. (2024). Estimating countries’ additional carbon accountability for closing the mitigation gap based on past and future emissions. Nature Communications. 15(1). 9707–9707. 11 indexed citations

Jørgensen, Peter Søgaard, Lan Wang‐Erlandsson, Jonathan F. Donges, et al.. (2023). Evolution of the polycrisis: Anthropocene traps that challenge global sustainability. Philosophical Transactions of the Royal Society B Biological Sciences. 379(1893). 20220261–20220261. 37 indexed citations

Watts, Heather E., et al.. (2022). Environmental Cue Integration and Phenology in a Changing World. Integrative and Comparative Biology. 62(4). 972–979. 7 indexed citations

Hahn, Thomas P., et al.. (2021). Specified resilience value of alternative forest management adaptations to storms. Scandinavian Journal of Forest Research. 36(7-8). 585–597. 21 indexed citations

Gunning, Christian E., et al.. (2020). Patterns of annual and seasonal immune investment in a temporal reproductive opportunist. Proceedings of the Royal Society B Biological Sciences. 287(1929). 20192993–20192993. 8 indexed citations

10.

Reynolds, Pamela L., Jamie M. Cornelius, Elizabeth A. MacDougall‐Shackleton, et al.. (2014). Song exposure during juvenile dispersal in Mountain White-crowned Sparrows. The Auk. 131(2). 208–214. 2 indexed citations

11.

Hahn, Thomas P., Chris J. Kettle, Jaboury Ghazoul, Ernest I. Hennig, & Andrea R. Pluess. (2013). Landscape Composition Has Limited Impact on Local Genetic Structure in Mountain Clover, Trifolium montanum L.. Journal of Heredity. 104(6). 842–852. 11 indexed citations

12.

Burns, Christine, Kimberly A. Rosvall, Thomas P. Hahn, Gregory E. Demas, & Ellen D. Ketterson. (2013). Examining sources of variation in HPG axis function among individuals and populations of the dark-eyed junco. Hormones and Behavior. 65(2). 179–187. 41 indexed citations

13.

Rosvall, Kimberly A., Christine Burns, Thomas P. Hahn, & Ellen D. Ketterson. (2013). Sources of variation in HPG axis reactivity and individually consistent elevation of sex steroids in a female songbird. General and Comparative Endocrinology. 194. 230–239. 24 indexed citations

14.

Schoech, Stephan J., Reed Bowman, Thomas P. Hahn, et al.. (2013). The effects of low levels of light at night upon the endocrine physiology of western scrub‐jays (Aphelocoma californica). Journal of Experimental Zoology Part A Ecological Genetics and Physiology. 319(9). 527–538. 34 indexed citations

15.

Pereyra, Maria E., Susan Sharbaugh, & Thomas P. Hahn. (2005). Interspecific Variation in Photo-Induced GnRH Plasticity among Nomadic Cardueline Finches. Brain Behavior and Evolution. 66(1). 35–49. 27 indexed citations

16.

Morton, Martin L., et al.. (2004). Reproductive Effort and Return Rates in the Mountain White-Crowned Sparrow. Ornithological Applications. 106(1). 131–138. 1 indexed citations

17.

Wingfield, John C., Noah T. Owen–Ashley, Z Morgan Benowitz‐Fredericks, et al.. (2004). Arctic spring: The arrival biology of migrant birds. 50(6). 948–960. 29 indexed citations

18.

Maney, Donna L., Elizabeth A. MacDougall‐Shackleton, Scott A. MacDougall‐Shackleton, Gregory F. Ball, & Thomas P. Hahn. (2003). Immediate early gene response to hearing song correlates with receptive behavior and depends on dialect in a female songbird. Journal of Comparative Physiology A. 189(9). 667–674. 84 indexed citations

19.

MacDougall‐Shackleton, Scott A., et al.. (2001). Seasonal Changes in Brain GnRH Immunoreactivity and Song-Control Nuclei Volumes in an Opportunistically Breeding Songbird. Brain Behavior and Evolution. 58(1). 38–48. 43 indexed citations

20.

Rabarivola, C., et al.. (2000). Genetic comparison between different populations ofEulemur macaco flavifrons in northwest Madagascar using RAPD markers. American Journal of Primatology. 51(4). 249–255. 6 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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