Herbivores and the Number of Tree Species in Tropical ForestsDaniel H. Janzen|The American Naturalist|1970Cited by 4.8k
Ten species in one: DNA barcoding reveals cryptic species in the neotropical skipper butterfly <i>Astraptes fulgerator</i>Paul D. N. Hebert, Winnie Hallwachs, Erin H. Penton et al.|Proceedings of the National Academy of Sciences|2004Cited by 3.5k
Why Mountain Passes are Higher in the TropicsDaniel H. Janzen|The American Naturalist|1967Cited by 2.1k
Use of DNA barcodes to identify flowering plantsW. John Kress, Daniel H. Janzen, Kenneth J. Wurdack et al.|Proceedings of the National Academy of Sciences|2005Cited by 1.9k