Jonas Geldmann

8.9k total citations · 3 hit papers
54 papers, 4.0k citations indexed

About

Jonas Geldmann is a scholar working on Global and Planetary Change, Ecology and Economics and Econometrics. According to data from OpenAlex, Jonas Geldmann has authored 54 papers receiving a total of 4.0k indexed citations (citations by other indexed papers that have themselves been cited), including 41 papers in Global and Planetary Change, 25 papers in Ecology and 21 papers in Economics and Econometrics. Recurrent topics in Jonas Geldmann's work include Conservation, Biodiversity, and Resource Management (35 papers), Economic and Environmental Valuation (21 papers) and Wildlife Ecology and Conservation (16 papers). Jonas Geldmann is often cited by papers focused on Conservation, Biodiversity, and Resource Management (35 papers), Economic and Environmental Valuation (21 papers) and Wildlife Ecology and Conservation (16 papers). Jonas Geldmann collaborates with scholars based in Denmark, United Kingdom and Australia. Jonas Geldmann's co-authors include Neil D. Burgess, Lauren Coad, Marc Hockings, Megan Barnes, Ian D. Craigie, Andrew Balmford, Kathryn Knights, Andrea Manica, Fiona Leverington and Lucas Joppa and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Jonas Geldmann

52 papers receiving 3.9k 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.

Effectiveness of terrestrial protected areas in reducing habitat loss and population declines

2013 686 citations Jonas Geldmann, Megan Barnes et al. Biological Conservation profile →
A global-level assessment of the effectiveness of protected areas at resisting anthropogenic pressures

2019 440 citations Jonas Geldmann, Andrea Manica et al. Proceedings of the National Academy of Sciences profile →
Protected areas have a mixed impact on waterbirds, but management helps

2022 122 citations Hannah S. Wauchope, Julia P. G. Jones et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jonas Geldmann Denmark	27	2.3k	1.8k	898	869	857	54	4.0k
Lauren Coad United Kingdom	28	2.3k 1.0×	2.1k 1.2×	814 0.9×	687 0.8×	760 0.9×	60	4.2k
Sean Maxwell Australia	18	1.8k 0.8×	1.8k 1.0×	482 0.5×	824 0.9×	940 1.1×	26	4.0k
Daniel B. Segan Australia	20	1.9k 0.8×	1.7k 1.0×	560 0.6×	930 1.1×	990 1.2×	30	3.4k
Edward T. Game Australia	37	2.3k 1.0×	2.6k 1.5×	463 0.5×	1.0k 1.2×	1.1k 1.3×	86	4.8k
Kendall R. Jones United States	21	2.0k 0.8×	2.0k 1.1×	390 0.4×	877 1.0×	842 1.0×	36	3.8k
Carly N. Cook Australia	33	1.5k 0.7×	1.5k 0.9×	450 0.5×	868 1.0×	781 0.9×	86	3.4k
Josie Carwardine Australia	29	1.8k 0.8×	1.8k 1.0×	707 0.8×	1.1k 1.3×	1.4k 1.6×	63	3.6k
Will R. Turner United States	28	1.8k 0.8×	1.2k 0.7×	573 0.6×	565 0.7×	769 0.9×	47	3.6k
Liba Pejchar United States	25	2.4k 1.0×	1.6k 0.9×	692 0.8×	409 0.5×	1.3k 1.5×	81	4.7k
Hedley S. Grantham Australia	42	2.8k 1.2×	3.2k 1.8×	640 0.7×	1.4k 1.6×	1.6k 1.8×	92	5.5k

Countries citing papers authored by Jonas Geldmann

Since Specialization

Citations

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

Fields of papers citing papers by Jonas Geldmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jonas Geldmann

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hilton‐Taylor, Craig, et al.. (2026). Priorities for conservation rely heavily on discovery and assessments. Biological Conservation. 315. 111689–111689.

Rahbek, Carsten, et al.. (2025). Evaluating protected areas’ coverage of threats to terrestrial biodiversity. Conservation Biology. 39(6). e70086–e70086.

Comte, Lise, et al.. (2025). The interconnected nature of multiple threats is impacting freshwater biodiversity. Biology Letters. 21(2). 20240544–20240544. 2 indexed citations

Gill, David, Sarah E. Lester, Christopher M. Free, et al.. (2024). A diverse portfolio of marine protected areas can better advance global conservation and equity. Proceedings of the National Academy of Sciences. 121(10). e2313205121–e2313205121. 17 indexed citations

Lessmann, Janeth, Jonas Geldmann, Javier Antonio Tamayo Fajardo, & Pablo A. Marquet. (2024). The role of funding in the performance of Latin America’s protected areas. Proceedings of the National Academy of Sciences. 121(36). e2307521121–e2307521121. 2 indexed citations

Farooq, Harith, Mike Harfoot, Carsten Rahbek, & Jonas Geldmann. (2024). Threats to reptiles at global and regional scales. Current Biology. 34(10). 2231–2237.e2. 3 indexed citations

Geldmann, Jonas. (2024). Protected areas: Biodiversity or people — or both?. Current Biology. 34(13). R633–R635. 2 indexed citations

Geldmann, Jonas. (2023). Safeguarding biodiversity requires understanding how to manage protected areas cost effectively. One Earth. 6(2). 73–76. 12 indexed citations

Wauchope, Hannah S., Julia P. G. Jones, Jonas Geldmann, et al.. (2022). Protected areas have a mixed impact on waterbirds, but management helps. Nature. 605(7908). 103–107. 122 indexed citations breakdown →

10.

Kulik, Lars, Tsegaye T. Gatiso, Martin Reinhardt Nielsen, et al.. (2022). Analysis of differences and commonalities in wildlife hunting across the Africa-Europe South-North gradient. PLoS Biology. 20(8). e3001707–e3001707. 3 indexed citations

11.

Eklund, Johanna, Julia P. G. Jones, Matti Räsänen, et al.. (2022). Elevated fires during COVID-19 lockdown and the vulnerability of protected areas. Nature Sustainability. 5(7). 603–609. 30 indexed citations

12.

Dudley, Nigel, John A. Robinson, Sandy J. Andelman, et al.. (2022). Developing an outcomes-based approach to achieving Target 3 of the Global Biodiversity Framework. PARKS. 33–44. 9 indexed citations

13.

Harfoot, Michael, Alison Johnston, Andrew Balmford, et al.. (2021). Using the IUCN Red List to map threats to terrestrial vertebrates at global scale. Nature Ecology & Evolution. 5(11). 1510–1519. 120 indexed citations

14.

Wauchope, Hannah S., Tatsuya Amano, Jonas Geldmann, et al.. (2020). Evaluating Impact Using Time-Series Data. Trends in Ecology & Evolution. 36(3). 196–205. 101 indexed citations

15.

Schleicher, Judith, Johanna Eklund, Megan Barnes, et al.. (2019). Statistical matching for conservation science. Conservation Biology. 34(3). 538–549. 135 indexed citations

16.

Geldmann, Jonas, Andrea Manica, Neil D. Burgess, Lauren Coad, & Andrew Balmford. (2019). A global-level assessment of the effectiveness of protected areas at resisting anthropogenic pressures. Proceedings of the National Academy of Sciences. 116(46). 23209–23215. 440 indexed citations breakdown →

17.

Eklund, Johanna, Lauren Coad, Jonas Geldmann, & Mar Cabeza. (2018). Protected area effectiveness and management indicators do not correlate: what are we doing wrong?. Jyväskylä University Digital Archive (University of Jyväskylä). 1 indexed citations

18.

He, Fengzhi, Vanessa Bremerich, Christiane Zarfl, et al.. (2018). Freshwater megafauna diversity: Patterns, status and threats. Diversity and Distributions. 24(10). 1395–1404. 60 indexed citations

19.

Geldmann, Jonas, Jacob Heilmann‐Clausen, Thomas Eske Holm, et al.. (2016). What determines spatial bias in citizen science? Exploring four recording schemes with different proficiency requirements. Diversity and Distributions. 22(11). 1139–1149. 199 indexed citations

20.

Coad, Lauren, Fiona Leverington, Neil D. Burgess, et al.. (2013). Progress towards the CBD protected area management effectiveness targets. PARKS. 19(1). 13–24. 48 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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