Alex Callen

860 total citations
28 papers, 391 citations indexed

About

Alex Callen is a scholar working on Global and Planetary Change, Ecology and Ecological Modeling. According to data from OpenAlex, Alex Callen has authored 28 papers receiving a total of 391 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Global and Planetary Change, 10 papers in Ecology and 9 papers in Ecological Modeling. Recurrent topics in Alex Callen's work include Amphibian and Reptile Biology (12 papers), Species Distribution and Climate Change (9 papers) and Mineral Processing and Grinding (7 papers). Alex Callen is often cited by papers focused on Amphibian and Reptile Biology (12 papers), Species Distribution and Climate Change (9 papers) and Mineral Processing and Grinding (7 papers). Alex Callen collaborates with scholars based in Australia, South Africa and Hungary. Alex Callen's co-authors include K.P. Galvin, Elham Doroodchi, S.J. Pratten, Jian Zhou, Kaya Klop‐Toker, Matt W. Hayward, Andrea S. Griffin, Behdad Moghtaderi, Michael Mahony and Lachlan G. Howell and has published in prestigious journals such as SHILAP Revista de lepidopterología, Chemical Engineering Science and Frontiers in Psychology.

In The Last Decade

Alex Callen

24 papers receiving 375 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Alex Callen Australia 12 166 163 110 62 44 28 391
Tatiana Miranda Germany 11 55 0.3× 41 0.3× 23 0.2× 107 1.7× 3 0.1× 21 481
Alessandro Monti Italy 11 77 0.5× 19 0.1× 10 0.1× 74 1.2× 19 0.4× 24 285
Xiaoliang Wang China 12 157 0.9× 24 0.1× 7 0.1× 10 0.2× 29 0.7× 35 368
Sen Li China 10 33 0.2× 43 0.3× 10 0.1× 31 0.5× 9 0.2× 47 291
John Currie United Kingdom 12 19 0.1× 105 0.6× 10 0.1× 11 0.2× 10 0.2× 45 599
R. Grosch Germany 4 28 0.2× 6 0.0× 44 0.4× 168 2.7× 18 0.4× 6 352
Tiecheng Li China 12 57 0.3× 36 0.2× 43 0.4× 35 0.6× 9 0.2× 41 420
Zbigniew Kaczkowski Poland 13 40 0.2× 292 1.8× 54 0.5× 31 0.5× 7 0.2× 100 628
Ø. Jensen Norway 7 20 0.1× 138 0.8× 18 0.2× 148 2.4× 40 0.9× 9 411

Countries citing papers authored by Alex Callen

Since Specialization
Citations

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

Fields of papers citing papers by Alex Callen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alex Callen

This figure shows the co-authorship network connecting the top 25 collaborators of Alex Callen. A scholar is included among the top collaborators of Alex Callen 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 Alex Callen. Alex Callen 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.
Gould, John, Alex Callen, & Chad T. Beranek. (2025). Managing Natural Extinctions. SHILAP Revista de lepidopterología. 2(4). 39–39.
2.
Hayward, Matt W., et al.. (2025). Hydroperiod Influences Tadpole Growth and Development in the Endangered Littlejohn's Tree Frog (Litoria littlejohni). Ecology and Evolution. 15(1). e70829–e70829. 1 indexed citations
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Gould, John, Alex Callen, Chad T. Beranek, & Colin R. McHenry. (2024). The only way is down: placing amphibian ponds on plateaux protects against Gambusia colonization. Restoration Ecology. 32(5). 1 indexed citations
6.
Hayward, Matt W., et al.. (2023). Complex Organisms Must Deal with Complex Threats: How Does Amphibian Conservation Deal with Biphasic Life Cycles?. Animals. 13(10). 1634–1634. 15 indexed citations
7.
Gould, John, et al.. (2023). Learning from past designs: improving amphibian fences using an adaptive management approach. Wildlife Research. 51(1). 2 indexed citations
8.
Callen, Alex, Lígia Pizzatto, Michelle P. Stockwell, et al.. (2023). The effect of salt dosing for chytrid mitigation on tadpoles of a threatened frog, Litoria aurea. Journal of Comparative Physiology B. 193(2). 239–247. 3 indexed citations
9.
Gould, John, James A. Taylor, Chad T. Beranek, et al.. (2023). Tadpole fingerprinting: Using tail venation patterns to photo‐identify tadpole individuals of a threatened frog. Austral Ecology. 48(3). 585–599. 6 indexed citations
10.
Callen, Alex, et al.. (2023). Using a cognitive model to understand crowdsourced data from citizen scientists. Behavior Research Methods. 56(4). 3589–3605. 1 indexed citations
11.
Klop‐Toker, Kaya, et al.. (2023). Uncovering inbreeding, small populations, and strong genetic isolation in an Australian threatened frog, Litoria littlejohni. Conservation Genetics. 24(5). 575–588. 3 indexed citations
12.
Beranek, Chad T., Andrew J. Hamer, John Gould, et al.. (2023). Severe wildfires promoted by climate change negatively impact forest amphibian metacommunities. Diversity and Distributions. 29(6). 785–800. 14 indexed citations
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Douglas, Heather, Michelle Kelly, Matt W. Hayward, et al.. (2022). The Relative Role of Knowledge and Empathy in Predicting Pro-Environmental Attitudes and Behavior. Sustainability. 14(8). 4622–4622. 37 indexed citations
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Mahony, Michael, John Gould, Chad T. Beranek, et al.. (2022). A trait-based analysis for predicting impact of wildfires on frogs. Australian Zoologist. 42(2). 326–351. 7 indexed citations
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Galvin, K.P., et al.. (2010). Gravity Separation of Coal in the Reflux Classifier – New Mechanisms for Suppressing the Effects of Particle Size. International Journal of Coal Preparation and Utilization. 30(2-5). 130–144. 13 indexed citations
20.
Galvin, K.P., et al.. (2002). Influence of a jigging action on the gravity separation achieved in a teetered bed separator. Minerals Engineering. 15(12). 1199–1202. 26 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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2026