Daniel H. Janzen

55.3k citations
457 papers · 45.5k · 26 hit papers · h-index 99

Impact in

Papers in

Daniel H. Janzen

442 papers receiving 39.9k citations

Daniel H. Janzen's Hit Papers

A global phylogeny of butterflies reveals their evolutionary history, ancestral hosts and biogeographic origins 2023 · 98 citations
980+16+33Years since publication50010001.5k2.0k2.5k

Peers

Daniel H. Janzen
Comparison fields: 5 of 205
  • Ecology, Evolution, Behavior and Systematics 23.4k
  • Nature and Landscape Conservation 14.1k
  • Ecological Modeling 4.6k
  • Insect Science 9.0k
  • Ecology 14.7k
Replace John Hartley Lawton with:
John Hartley Lawton United Kingdom
Robert K. Colwell United States
Claire Kremen United States
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Wolfgang W. Weisser Germany
Alexandra-Maria Klein Germany
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BERNHARD H. SCHMID Switzerland
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Citations per field
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Citations per year

Countries citing papers authored by Daniel H. Janzen

Since Specialization
Citations

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

Fields of papers citing papers by Daniel H. Janzen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Daniel H. Janzen. 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 Daniel H. Janzen. The network helps show where Daniel H. Janzen may publish in the future.

Co-authors

The 25 scholars most cited alongside Daniel H. Janzen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Daniel H. Janzen Line = papers co-authored together Daniel H. Janzen links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 457 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Herbivores and the Number of Tree Species in Tropical Forests
Hit paper breakdown →
19703974
2
Ten species in one: DNA barcoding reveals cryptic species in the neotropical skipper butterfly Astraptes fulgerator
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20042898
3
Seed Predation by Animals
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19711717
4
Why Mountain Passes are Higher in the Tropics
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19671698
5
Use of DNA barcodes to identify flowering plants
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20051575
6
DNA barcodes distinguish species of tropical Lepidoptera
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20061203
7
Strategies in Herbivory by Mammals: The Role of Plant Secondary Compounds
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19741178
8
Averting biodiversity collapse in tropical forest protected areas
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2012962
9
Tropical Blackwater Rivers, Animals, and Mast Fruiting by the Dipterocarpaceae
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1974783
10
Why Bamboos Wait So Long to Flower
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1976781
11
COEVOLUTION OF MUTUALISM BETWEEN ANTS AND ACACIAS IN CENTRAL AMERICA
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1966770
12
WHEN IS IT COEVOLUTION?
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1980763
13
Neotropical Anachronisms: The Fruits the Gomphotheres Ate
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1982727
14
How to be a Fig
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1979664
15
Euglossine Bees as Long-Distance Pollinators of Tropical Plants
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1971662
16
Sweep Samples of Tropical Foliage Insects: Effects of Seasons, Vegetation Types, Elevation, Time of Day, and Insularity
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1973569
17
SEED‐EATERS VERSUS SEED SIZE, NUMBER, TOXICITY AND DISPERSAL
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1969549
18
Extreme diversity of tropical parasitoid wasps exposed by iterative integration of natural history, DNA barcoding, morphology, and collections
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2008509
19
DNA barcodes reveal cryptic host-specificity within the presumed polyphagous members of a genus of parasitoid flies (Diptera: Tachinidae)
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2006504
20
SYNCHRONIZATION OF SEXUAL REPRODUCTION OF TREES WITHIN THE DRY SEASON IN CENTRAL AMERICA
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1967503

About Daniel H. Janzen

Daniel H. Janzen is a scholar working on Ecology, Evolution, Behavior and Systematics, Insect Science, Genetics, Ecology and Ecological Modeling, having authored 457 papers that have together received 45.5k indexed citations. Recurring topics across this work include Plant and animal studies (143 papers), Lepidoptera: Biology and Taxonomy (114 papers), Hymenoptera taxonomy and phylogeny (97 papers), Forest Insect Ecology and Management (80 papers), Insect-Plant Interactions and Control (63 papers), Insect behavior and control techniques (44 papers), Ecology and Vegetation Dynamics Studies (40 papers) and Insect and Arachnid Ecology and Behavior (35 papers). The work is most often cited by research in Ecology, Evolution, Behavior and Systematics (23.4k citations), Nature and Landscape Conservation (14.1k citations), Ecological Modeling (4.6k citations), Insect Science (9.0k citations) and Ecology (14.7k citations). Daniel H. Janzen has collaborated with scholars based in United States, Canada and Costa Rica. Frequent co-authors include Winnie Hallwachs, Paul Hebert, John M. Burns, W. J. Freeland, Mehrdad Hajibabaei, M. Alex Smith, Paul S. Martin, W. John Kress, Kenneth J. Wurdack and Elizabeth A. Zimmer. Their work appears in journals such as ZooKeys, Biotropica, Science, Ecology and Proceedings of the National Academy of Sciences.

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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