Roland A. Knapp

6.8k total citations · 1 hit paper
82 papers, 4.9k citations indexed

About

Roland A. Knapp is a scholar working on Nature and Landscape Conservation, Ecology and Global and Planetary Change. According to data from OpenAlex, Roland A. Knapp has authored 82 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Nature and Landscape Conservation, 43 papers in Ecology and 43 papers in Global and Planetary Change. Recurrent topics in Roland A. Knapp's work include Amphibian and Reptile Biology (38 papers), Fish Ecology and Management Studies (35 papers) and Species Distribution and Climate Change (19 papers). Roland A. Knapp is often cited by papers focused on Amphibian and Reptile Biology (38 papers), Fish Ecology and Management Studies (35 papers) and Species Distribution and Climate Change (19 papers). Roland A. Knapp collaborates with scholars based in United States, United Kingdom and Australia. Roland A. Knapp's co-authors include Vance T. Vredenburg, Kathleen Matthews, Cheryl J. Briggs, Orlando Sarnelle, Tate Tunstall, Jess A. T. Morgan, Lara J. Rachowicz, Haiganoush K. Preisler, Daniel E. Schindler and Daniel M. Boiano and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and PLoS ONE.

In The Last Decade

Roland A. Knapp

81 papers receiving 4.6k 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.

Dynamics of an emerging disease drive large-scale amphibian population extinctions

2010 500 citations Vance T. Vredenburg, Roland A. Knapp et al. Proceedings of the National Academy of Sciences profile →

Peers

Roland A. Knapp

GPC

NLC

ECOLO

EEBS

Sharon Lawler United States

Jean‐Marc Hero Australia

Earl D. McCoy United States

Stefan Lötters Germany

Benedikt R. Schmidt Switzerland

Janice Chanson United States

Neil A. Cox United States

Paul Stephen Corn United States

Dov F. Sax United States

Erin Muths United States

Sharon Lawler United States

Roland A. Knapp

1.5k ×0.5

GPC

2.0k ×0.9

NLC

2.0k ×0.9

ECOLO

657 ×0.5

1.7k ×1.8

EEBS

Citations per year, relative to Roland A. Knapp Roland A. Knapp (= 1×) peers Sharon Lawler

Countries citing papers authored by Roland A. Knapp

Since Specialization

Citations

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

Fields of papers citing papers by Roland A. Knapp

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roland A. Knapp. 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 Roland A. Knapp. The network helps show where Roland A. Knapp may publish in the future.

Co-authorship network of co-authors of Roland A. Knapp

This figure shows the co-authorship network connecting the top 25 collaborators of Roland A. Knapp. A scholar is included among the top collaborators of Roland A. Knapp 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 Roland A. Knapp. Roland A. Knapp 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

Knapp, Roland A., et al.. (2025). Dietary dopamine supplementation has no effect on ovary activity in queen-less or queen-right honeybee (Apis mellifera) workers. Apidologie. 56(1). 1 indexed citations

Ohmer, Michel E. B., Louise A. Rollins‐Smith, Cheryl J. Briggs, et al.. (2025). Do fungi look like macroparasites? Quantifying the patterns and mechanisms of aggregation for host–fungal parasite relationships. Proceedings of the Royal Society B Biological Sciences. 292(2043). 20242013–20242013.

Knapp, Roland A., et al.. (2024). Reintroduction of resistant frogs facilitates landscape-scale recovery in the presence of a lethal fungal disease. Nature Communications. 15(1). 9436–9436. 5 indexed citations

Byrne, Allison Q., Lydia L. Smith, Roland A. Knapp, et al.. (2023). Revisiting conservation units for the endangered mountain yellow-legged frog species complex (Rana muscosa, Rana sierrae) using multiple genomic methods. Conservation Genetics. 25(3). 591–606. 5 indexed citations

Knapp, Roland A., Maxwell B. Joseph, Vance T. Vredenburg, et al.. (2022). Effectiveness of antifungal treatments during chytridiomycosis epizootics in populations of an endangered frog. PeerJ. 10. e12712–e12712. 17 indexed citations

Knapp, Roland A., et al.. (2021). Longitudinal patterns in the skin microbiome of wild, individually marked frogs from the Sierra Nevada, California. ISME Communications. 1(1). 45–45. 11 indexed citations

Tiberti, Rocco, Teresa Buchaca, Daniel M. Boiano, et al.. (2021). Alien fish eradication from high mountain lakes by multiple removal methods: Estimating residual abundance and eradication probability in open populations. Journal of Applied Ecology. 58(5). 1055–1068. 8 indexed citations

Joseph, Maxwell B. & Roland A. Knapp. (2018). Disease and climate effects on individuals drive post‐reintroduction population dynamics of an endangered amphibian. Ecosphere. 9(11). 34 indexed citations

Smith, Thomas C., Angela M. Picco, & Roland A. Knapp. (2017). Ranaviruses infect mountain yellow-legged frogs (Rana muscosa and Rana sierrae) threatened by Batrachochytrium dendrobatidis.. Herpetological conservation and biology. 12(1). 149–159. 3 indexed citations

10.

Piovia‐Scott, Jonah, Steven Sadro, Roland A. Knapp, et al.. (2016). Variation in reciprocal subsidies between lakes and land: perspectives from the mountains of California. Canadian Journal of Fisheries and Aquatic Sciences. 73(11). 1691–1701. 16 indexed citations

11.

Briggs, Cheryl J., Roland A. Knapp, & Vance T. Vredenburg. (2010). Enzootic and epizootic dynamics of the chytrid fungal pathogen of amphibians. Proceedings of the National Academy of Sciences. 107(21). 9695–9700. 402 indexed citations

12.

Knapp, Roland A., et al.. (2010). Nonnative trout impact an alpine‐nesting bird by altering aquatic‐insect subsidies. Ecology. 91(8). 2406–2415. 132 indexed citations

13.

Bradford, David F., Roland A. Knapp, Donald W. Sparling, et al.. (2010). Pesticide distributions and population declines of California, USA, alpine frogs, Rana muscosa and Rana sierrae. Environmental Toxicology and Chemistry. 30(3). 682–691. 33 indexed citations

14.

Kramer, Andrew M., Orlando Sarnelle, & Roland A. Knapp. (2008). ALLEE EFFECT LIMITS COLONIZATION SUCCESS OF SEXUALLY REPRODUCING ZOOPLANKTON. Ecology. 89(10). 2760–2769. 56 indexed citations

15.

Knapp, Roland A. & Orlando Sarnelle. (2008). RECOVERY AFTER LOCAL EXTINCTION: FACTORS AFFECTING RE‐ESTABLISHMENT OF ALPINE LAKE ZOOPLANKTON. Ecological Applications. 18(8). 1850–1859. 31 indexed citations

16.

Fisk, Debra L., Leigh C. Latta, Roland A. Knapp, & Michael E. Pfrender. (2007). Rapid evolution in response to introduced predators I: rates and patterns of morphological and life-history trait divergence. BMC Evolutionary Biology. 7(1). 22–22. 75 indexed citations

17.

Knapp, Roland A., Daniel M. Boiano, & Vance T. Vredenburg. (2006). Removal of nonnative fish results in population expansion of a declining amphibian (mountain yellow-legged frog, Rana muscosa). Biological Conservation. 135(1). 11–20. 152 indexed citations

18.

Knapp, Roland A., Kathleen Matthews, & Orlando Sarnelle. (2001). Resistance and Resilience of Alpine Lake Fauna to Fish Introductions. Ecological Monographs. 71(3). 401–401. 14 indexed citations

19.

Knapp, Roland A. & Kathleen Matthews. (1998). Eradication of non-native fish from a small mountain lake: gill netting as a non-toxic alternative to the use of rotenone.. Restoration Ecology. 2 indexed citations

20.

Knapp, Roland A., Vance T. Vredenburg, & Kathleen Matthews. (1998). EFFECTS OF STREAM CHANNEL MORPHOLOGY ON GOLDEN TROUT SPAWNING HABITAT AND RECRUITMENT. Ecological Applications. 8(4). 1104–1117. 52 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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