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Daniel H. Janzen

Active 1966–2024

88
Papers
40,253
Citations
79
h-index
87
i10-index

Citations

Citations per year for Daniel H. Janzen1967: 1 citations1968: 4 citations1969: 11 citations1970: 7 citations1971: 12 citations1972: 24 citations1973: 13 citations1974: 34 citations1975: 27 citations1976: 43 citations1977: 54 citations1978: 45 citations1979: 51 citations1980: 75 citations1981: 46 citations1982: 69 citations1983: 70 citations1984: 57 citations1985: 51 citations1986: 58 citations1987: 57 citations1988: 64 citations1989: 51 citations1990: 61 citations1991: 62 citations1992: 66 citations1993: 54 citations1994: 57 citations1995: 51 citations1996: 71 citations1997: 60 citations1998: 69 citations1999: 70 citations2000: 93 citations2001: 81 citations2002: 90 citations2003: 98 citations2004: 105 citations2005: 147 citations2006: 180 citations2007: 241 citations2008: 168 citations2009: 249 citations2010: 248 citations2011: 198 citations2012: 159 citations2013: 154 citations2014: 159 citations2015: 170 citations2016: 153 citations2017: 124 citations2018: 144 citations2019: 456 citations2020: 458 citations2021: 386 citations2022: 259 citations2023: 130 citations2024: 281 citations2025: 92 citations2026: 3 citations

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 2,040 citing papers, 24.4% of this breakdownUnited Kingdom: 674 citing papers, 8.1% of this breakdownCanada: 569 citing papers, 6.8% of this breakdownGermany: 465 citing papers, 5.6% of this breakdownChina: 451 citing papers, 5.4% of this breakdownAustralia: 317 citing papers, 3.8% of this breakdownFrance: 314 citing papers, 3.8% of this breakdownBrazil: 237 citing papers, 2.8% of this breakdownSpain: 189 citing papers, 2.3% of this breakdownSwitzerland: 160 citing papers, 1.9% of this breakdownPanama: 147 citing papers, 1.8% of this breakdownNetherlands: 136 citing papers, 1.6% of this breakdown
0%24.4%Other 31.7%

Institutions

Fields

  • Agricultural and Biological Sciences32.1%
  • Environmental Science28.7%
  • Biochemistry, Genetics and Molecular Biology27.1%
  • Medicine2.5%
  • Psychology2.1%
  • Earth and Planetary Sciences1.8%
  • Other5.7%

Topics

  • Plant and animal studies11.5%
  • Ecology and Vegetation Dynamics Studies6.9%
  • Insect and Arachnid Ecology and Behavior4.6%
  • Identification and Quantification in Food4.2%
  • Species Distribution and Climate Change3.8%
  • Genomics and Phylogenetic Studies3.8%
  • Other65.2%

Coauthors

All papers

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  1. Ten species in one: DNA barcoding reveals cryptic species in the neotropical skipper butterfly Astraptes fulgerator

    Authors: Paul D. N. Hebert, Erin H. Penton, John M. Burns, Daniel H. Janzen, Winnie Hallwachs - National Academy of Sciences, Proceedings of the National Academy of Sciences 2004 cited by 3,475

  2. Use of DNA barcodes to identify flowering plants

    Authors: W. John Kress, Kenneth J. Wurdack, Elizabeth A. Zimmer, Lee A. Weigt, Daniel H. Janzen - National Academy of Sciences, Proceedings of the National Academy of Sciences 2005 cited by 1,949

  3. Why Mountain Passes are Higher in the Tropics

    Authors: Daniel H. Janzen - The American Naturalist 1967 cited by 2,063

  4. Caterpillars lack a resident gut microbiome

    Authors: Tobin J. Hammer, Daniel H. Janzen, Winnie Hallwachs, Samuel Jaffe, Noah Fierer - National Academy of Sciences, Proceedings of the National Academy of Sciences 2017 cited by 483

  5. Massively parallel multiplex DNA sequencing for specimen identification using an Illumina MiSeq platform

    Authors: Shadi Shokralla, Teresita M. Porter, Joel F. Gibson, Rafal Dobosz, Daniel H. Janzen, Winnie Hallwachs, G. Brian Golding, Mehrdad Hajibabaei - Scientific Reports 2015 cited by 275

  6. A global phylogeny of butterflies reveals their evolutionary history, ancestral hosts and biogeographic origins

    Authors: Akito Y. Kawahara, Caroline Storer, Ana Paula S. Carvalho, David Plotkin, Fabien L. Condamine, Mariana P. Braga, E. Ann Ellis, Ryan A. St Laurent, Xuankun Li, Vijay Barve, Liming Cai, Chandra Earl, Paul B. Frandsen, Hannah L. Owens, Wendy A. Valencia‐Montoya, Kwaku Aduse‐Poku, Emmanuel F. A. Toussaint, Kelly M. Dexter, Tenzing Doleck, Amanda Markee, Rebeccah L. Messcher, Y‐Lan Nguyen, Jade Aster T. Badon, Hugo A. Benítez, Michael F. Braby, Perry Archival C. Buenavente, Wei-Ping Chan, Steve C. Collins, Richard Rabideau Childers, Even Dankowicz, Rod Eastwood, Zdeněk Faltýnek Fric, Riley J. Gott, Jason P. W.‏ Hall, Winnie Hallwachs, Nate B. Hardy, Rachel L. Hawkins Sipe, Alan G. Heath, Jomar D. Hinolan, Nicholas T. Homziak, Yu‐Feng Hsu, Yutaka Inayoshi, Micael Itliong, Daniel H. Janzen, Ian J. Kitching, Krushnamegh Kunte, Gerardo Lamas, Michael J. Landis, Elise A. Larsen, Torben Bjerregaard Larsen, Jing Vir Leong, Vladimir A. Lukhtanov, Crystal A. Maier, Jose I. Martinez, Dino J. Martins, Kiyoshi Maruyama, Sarah C. Maunsell, Nicolás Oliveira Mega, Alexander L. Monastyrskii, Ana Beatriz Barros de Morais, Chris J. Müller, Mark Arcebal K. Naive, Gregory J. Nielsen, Pablo Sebastián Padrón, Djunijanti Peggie, Helena Piccoli Romanowski, Szabolcs Sáfián, Motoki Saito, Stefan Schröder, Vaughn Shirey, Doug Soltis, Pamela S. Soltis, Andrei Sourakov, Gerard Talavera, Roger Vila, Petr Vlašánek, Houshuai Wang, Andrew Warren, Keith R. Willmott, Masaya Yago, Walter Jetz, Marta A. Jarzyna, Jesse W. Breinholt, Marianne Espeland, Leslie Ries, Robert Guralnick, Naomi E. Pierce, David J. Lohman - Nature Ecology & Evolution 2023 cited by 180

  7. Minimalist revision and description of 403 new species in 11 subfamilies of Costa Rican braconid parasitoid wasps, including host records for 219 species

    Authors: Michael J. Sharkey, Daniel H. Janzen, Winnie Hallwachs, Eric G. Chapman, M. Alex Smith, Tanya Dapkey, Allison Brown, Sujeevan Ratnasingham, Suresh Naik, Ramya Manjunath, Kate Perez, Megan Milton, Paul D. N. Hebert, Scott Richard Shaw, Rebecca N. Kittel, M. Alma Solís, Mark A. Metz, Paul Z. Goldstein, John W. Brown, Donаld L. J. Quicke, C. van Achterberg, Brian V. Brown, John M. Burns - ZooKeys 2021 cited by 153

  8. Toward reconstructing the evolution of advanced moths and butterflies (Lepidoptera: Ditrysia): an initial molecular study

    Authors: Jerome C. Regier, Andreas Zwick, Michael P. Cummings, Akito Y. Kawahara, Soowon Cho, Susan J. Weller, Amanda D. Roe, Joaquín Baixeras, John W. Brown, Cynthia Parr, Donald R. Davis, Marc E. Epstein, Winifred Hallwachs, Axel Hausmann, Daniel H. Janzen, Ian J. Kitching, M. Alma Solís, Shen-Horn Yen, Adam L. Bazinet, Charles Mitter - BMC Evolutionary Biology 2009 cited by 300

  9. Herbivores and the Number of Tree Species in Tropical Forests

    Authors: Daniel H. Janzen - The American Naturalist 1970 cited by 4,789

  10. Euglossine Bees as Long-Distance Pollinators of Tropical Plants

    Authors: Daniel H. Janzen - Science 1971 cited by 771

  11. DNA barcodes distinguish species of tropical Lepidoptera

    Authors: Mehrdad Hajibabaei, Daniel H. Janzen, John M. Burns, Winnie Hallwachs, Paul D. N. Hebert - National Academy of Sciences, Proceedings of the National Academy of Sciences 2006 cited by 1,439

  12. A Sequel to Sanger: amplicon sequencing that scales

    Authors: Paul D. N. Hebert, Thomas Braukmann, Sean W. J. Prosser, Sujeevan Ratnasingham, Jeremy R deWaard, Natalia V. Ivanova, Daniel H. Janzen, Winnie Hallwachs, Suresh Naik, Jayme E Sones, Evgeny Zakharov - BMC Genomics 2018 cited by 295

  13. A minimalist barcode can identify a specimen whose DNA is degraded

    Authors: Mehrdad Hajibabaei, M. Alex Smith, Daniel H. Janzen, Josephine Rodriguez, James B. Whitfield, Paul D. N. Hebert - Molecular Ecology Notes 2006 cited by 554

  14. Next‐generation DNA barcoding: using next‐generation sequencing to enhance and accelerate DNA barcode capture from single specimens

    Authors: Shadi Shokralla, Joel F. Gibson, Hamid Nikbakht, Daniel H. Janzen, Winnie Hallwachs, Mehrdad Hajibabaei - Molecular Ecology Resources 2014 cited by 238

  15. Seed Predation by Animals

    Authors: Daniel H. Janzen - Annual Review of Ecology and Systematics 1971 cited by 2,017

  16. Extreme diversity of tropical parasitoid wasps exposed by iterative integration of natural history, DNA barcoding, morphology, and collections

    Authors: M. Alex Smith, Josephine Rodriguez, James B. Whitfield, Andrew Deans, Daniel H. Janzen, Winnie Hallwachs, Paul D. N. Hebert - National Academy of Sciences, Proceedings of the National Academy of Sciences 2008 cited by 601

  17. Wedding biodiversity inventory of a large and complex Lepidoptera fauna with DNA barcoding

    Authors: Daniel H. Janzen, Mehrdad Hajibabaei, John M. Burns, Winnie Hallwachs, Ed Remigio, Paul D. N. Hebert - Philosophical Transactions of the Royal Society B Biological Sciences 2005 cited by 341

  18. Strategies in Herbivory by Mammals: The Role of Plant Secondary Compounds

    Authors: W. J. Freeland, Daniel H. Janzen - The American Naturalist 1974 cited by 1,354

  19. Simultaneous assessment of the macrobiome and microbiome in a bulk sample of tropical arthropods through DNA metasystematics

    Authors: Joel F. Gibson, Shadi Shokralla, Teresita M. Porter, Ian W. King, Steven van Konynenburg, Daniel H. Janzen, Winnie Hallwachs, Mehrdad Hajibabaei - National Academy of Sciences, Proceedings of the National Academy of Sciences 2014 cited by 317

  20. DNA barcodes and cryptic species of skipper butterflies in the genus Perichares in Area de Conservación Guanacaste, Costa Rica

    Authors: John M. Burns, Daniel H. Janzen, Mehrdad Hajibabaei, Winnie Hallwachs, Paul D. N. Hebert - National Academy of Sciences, Proceedings of the National Academy of Sciences 2008 cited by 235

  21. 2,4-Methanoproline (2-carboxy-2,4-methanopyrrolidine) and 2,4-methanoglutamic acid (1-amino-1,3-dicarboxycyclobutane) in seeds of Ateleia herbert smithii Pittier (Leguminosae)

    Authors: E.Arthur Bell, M.Yasin Qureshi, Robert J. Pryce, Daniel H. Janzen, Paula Lemke, Jon Clardy - Journal of the American Chemical Society 1980 cited by 94

  22. WHEN IS IT COEVOLUTION?

    Authors: Daniel H. Janzen - Evolution 1980 cited by 863

  23. Integration of DNA barcoding into an ongoing inventory of complex tropical biodiversity

    Authors: Daniel H. Janzen, Winnie Hallwachs, Patrick Blandin, John M. Burns, J.-M. Cadiou, Isidro Chacón, Tanya Dapkey, Andrew Deans, Marc E. Epstein, Bernardo Espinoza, J. G. Franclemont, William A. Haber, Mehrdad Hajibabaei, Jason P. W.‏ Hall, Paul D. N. Hebert, I. D. Gauld, Donald J. Harvey, Axel Hausmann, Ian J. Kitching, Don Lafontaine, Jean‐François Landry, Claude Lemaire, Jacqueline Y. Miller, James S. Miller, Lee D. Miller, Scott E. Miller, José Ramón Montero Gibert, Eugene Munroe, SUZANNE RAB GREEN, Sujeevan Ratnasingham, John E. Rawlins, Robert K. Robbins, Josephine Rodriguez, Rodolphe Rougerie, Michael J. Sharkey, M. Alex Smith, M. Alma Solís, J. Bolling Sullivan, Paul Thiaucourt, David B. Wahl, Susan J. Weller, James B. Whitfield, Keith R. Willmott, David M. Wood, Norman E. Woodley, John‐James Wilson - Molecular Ecology Resources 2009 cited by 359

  24. Wolbachia and DNA Barcoding Insects: Patterns, Potential, and Problems

    Authors: M. Alex Smith, Claudia Bertrand, Kate Crosby, Eldon S. Eveleigh, José Fernández-Triana, Brian L. Fisher, Jason Gibbs, Mehrdad Hajibabaei, Winnie Hallwachs, Katharine R. Hind, Jan Hrček, Da-Wei Huang, Milan Janda, Daniel H. Janzen, Yanwei Li, Scott E. Miller, Laurence Packer, Donаld L. J. Quicke, Sujeevan Ratnasingham, Josephine Rodriguez, Rodolphe Rougerie, Mark Shaw, Cory S. Sheffield, Julie K. Stahlhut, Dirk Steinke, James B. Whitfield, Monty Wood, Xin Zhou - PLoS ONE 2012 cited by 211