Publications

Caroline Palmer, Carlos Jimenez, Giovanni Bassey, Eleazar Ruiz, Tatiana Villalobos Cubero, Maria Marta Chavarria, Xavier A. Harrison, Robert Puschendorf

Cold Water and Harmful Algal Blooms Linked to Coral Reef Collapse in the Eastern Tropical Pacific. Peerj.

Eugenie Phillips-Rodríguez, John W. Brown, Winnie Hallwachs, Daniel H. Janzen

Chlamydastis Meyrick of Costa Rica: barcodes, biology, and descriptions of 36 new species (Lepidoptera: Depressariidae). Insecta Mundi.

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 Hebert, Scott R. Shaw, Rebecca N. Kittel, M. Alma Solis, Mark A. Metz, Paul Z. Goldstein, John W. Brown, Donald L. J. Quicke, C. van Achterberg, Brian V. Brown, John M. Burns.

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

Daniel H. Janzen and Winnie Hallwachs.

To us insectometers, it is clear that insect decline in our Costa Rican tropics is real, so let’s be kind to the survivors. Proceedings of the National Academy of Sciences of the United States of America.

Sarah J. Dolson, Megan McPhee, Carlos F. Viquez, Winnie Hallwachs, Daniel H. Janzen, M. Alex Smith

Spider diversity across an elevation gradient in Área de Conservación Guanacaste (ACG), Costa Rica. Biotropica.

Cortés, J. and F. Joyce.

BioMar-ACG: A successful partnership to inventory and promulgate marine biodiversity. Biotropica.

Dr. Daniel Janzen, Dr. Winnie Hallwachs, Mr. Guillermo Pereira, Mr. Roger Blanco, Mr. Alejandro Masis, Ms. Maria Marta Chavarria, Mr. Felipe Chavarria, Mr. Adrian Guadamuz, Mrs. Magaly Araya, Dr. M. Alex Smith, Mr. Johan Valerio, Mr. Hartman Guido, Mr. Eddy Sanchez, Mr. Sergio Bermudez, Ms. Kate HJ Perez, Ms. Ramya Manjunath, Dr. Sujeevan Ratnasingham, Mrs. Brianne St. Jacques, Ms. Megan A. Milton, Dr. Jeremy R. deWaard, Dr. Evgeny V. Zakharov, Dr. Suresh Naik, Dr. Mehrdad Hajibabaei, Dr. Paul D. N. Hebert, Dr. Motohiro Hasegawa. 

Using DNA-barcoded Malaise trap samples to measure impact of a geothermal energy project on the biodiversity of a Costa Rican old-growth rain forest. Genome.

Smith, M.A., Hallwachs, W., Janzen, D.H. et al.

A subterranean ant Acanthostichus Mayr, 1887 is revealed in Costa Rica. Insectes Sociaux.

Fleming A, Wood DM, Smith MA, Dapkey T, Hallwachs W, Janzen D

A new genus and new species in the tribe Uramyini (Diptera: Tachinidae) from Area de Conservación Guanacaste in northwestern Costa Rica. Biodiversity Data Journal.

Janzen, DH, Hallwachs, W.

Área de Conservación Guanacaste, northwestern Costa Rica: Converting a tropical national park to conservation via biodevelopment. Biotropica.

Rita Vargas-Castillo and Jorge Cortés

New records of marine decapods and stomatopods in Área de Conservación Guanacaste (ACG): four years of marine biodiversity inventorying. Marine Biodiversity Records.

Daniel H. Janzen and Winnie Hallwachs

How a Tropical Country Can DNA Barcode Itself. iBOL Bioscan.

Puschendorf, R. , Wallace, M. , Chavarría, M. M., Crawford, A. J., Wynne, F. , Knight, M. , Janzen, D. H., Hallwachs, W. , Palmer, C. and Price, S. J.

Cryptic diversity and ranavirus infection of a critically endangered Neotropical frog before and after population collapse. Animal Conservation.

Cryer J, Wynne F, Price SJ, Puschendorf R.

Cryptic diversity in Lithobates warszewitschii (Amphibia, Anura, Ranidae). ZooKeys.

Daniel H. Janzen and Winnie Hallwachs

Perspective: Where might be many tropical insects? Biological Conservation.

Jing Zhang, Qian Cong, Emily A. Rex, Winnie Hallwachs, Daniel H. Janzen, Nick V. Grishin, and Don B. Gammon.

Gypsy moth genome provides insights into flight capability and virus–host interactions. PNAS.

Fleming, A.J., Wood, D.M, Smith, M. A., Hallwachs,W., and Janzen, D. H.

Revision of the Mesoamerican species of Calolydella Townsend (Diptera: Tachinidae) and descriptions of twenty-three new species reared from caterpillars in Area de Conservación Guanacaste, northwestern Costa Rica.  Biodiversity Data Journal.

Dias, F. M. S., Janzen, D. H., Hallwachs, W., Chacon, I., Willmott, K., Ortiz-Acevedo, E., Mielke, O. H. H., and Casagrande, M. M.

DNA barcodes uncover hidden taxonomic diversity behind the variable wing patterns in the Neotropical butterfly genus Zaretis (Lepidoptera: Nymphalidae: Charaxinae). Zoological Journal of the Linnean Society.

Hebert, P. D. N., Braukmann, T. W. A., Prosser, S. W. J., Ratnasingham, S., deWaard, J. R., Ivanova, N. V., Janzen, D. H., Hallwachs, W., Naik, Sones, J. E., and Zakharov, E. V.

A Sequel to Sanger: amplicon sequencing that scales.  BMC Genomics.

Espinoza, B.A., Janzen, D.H., and Hallwachs, W.

17 new species hiding in 10 long-named gaudy tropical moths (Lepidoptera: Erebidae: Arctiinae).  Tropical Lepidoptera Research.

Dan Janzen and Winnie Hallwachs

Costa Rica - to become a bioliterate tropical country: Project: "Bioliteracy for all: BioAlfa"

Bachtold, A., Kaminski, L. A., Magaldi, L. M., Oliveira, P. S., Del-Claro, K., Janzen, D. H., Burns, J. M., Grishin, N., Hajibabaei, M., Hallwachs, W. and Freitas, A. V. L.

Integrative data helps the assessment of a butterfly within the Udranomia kikkawai species complex (Lepidoptera: Hesperiidae): immature stages, natural history, and molecular evidence.  Zoologischer Anzeiger.

Heikkila, M., Metz, M. A., Hallwachs, W., and Janzen, D. H.

Three new species of Rectiostoma Becker, 1982 (Lepidoptera: Gelechioidea: Depressariidae) from Area de Conservacion Guanacaste, northwestern Costa Rica. Proceedings of the Entomological Society of Washington.

Fleming, A. J., Wood, D. M., Smith, M. A., Hallwachs, W., Janzen, D. H., and Dapkey, T.

Nine new species of Uramya Robineau-Desvoidy (Diptera: Tachinidae) from Area de Conservación Guanacaste in northwestern Costa Rica, with a key to their identification. Biodiversity Data Journal.

Ge, D., Wu, G., Yang, L., Kim, H-N., Hallwachs,W., Burns, J. M., Janzen, D. H., and Yang, S.

Varying and unchanging whiteness on the wings of dusk-active and shade-inhabiting Carystoides escalantei butterflies. Proceedings of the National Academy of Sciences.

Janzen, D.H., Burns, J.M., Cong, Q., Hallwachs,W., Dapkey, T., Manjunath, R., Hajibabaei, Hebert, P.D.N., and Grishin, N.V. 

Nuclear genomes distinguish cryptic species suggested by their DNA barcodes and ecology. Proceedings of the National Academy of Sciences.

Fleming, A. J., Wood, D. M., Smith, M. A., Dapkey, T. Hallwachs, W., and Janzen, D. H.

Five new species of Vibrissina Rondani (Diptera: Tachinidae) from Área de Conservación Guanacaste in Northwestern Costa Rica. Biodiversity Data Journal.

Hammer, T. J., Janzen, D. H., Hallwachs, W., Jaffe, S. P., and Fierer, N.

Caterpillars lack a resident gut microbiome.  Proceedings of the National Academy of Sciences.

Treuer, T. L. H., Choi, J. J., Janzen, D. H., Hallwachs, W., Perez-Aviles, D., Dobson, A., Powers, J. S., Shanks, L. C., Werden, L. K., and Wilcove, D. S. 

Low-cost agricultural waste accelerates tropical forest regeneration. Restoration Ecology.

Chacon, I. A., Janzen, D. H., Hallwachs, W., Dapkey, T., Harvey, D. J., and Grishin, N.V. 

Six new cryptic species of Xylodonta Becker, 2014 (Notodontidae: Nystaleinae) from Costa Rica. Tropical Lepidoptera Research.

Metz, M. A., Janzen, D. H., Hallwachs, W.

Descriptions of four new species of Struthoscelis Meyrick (Lepidoptera: Oecophoridae: Oecophorinae), one from Área de Conservación Guanacaste, northwestern Costa Rica, providing the first known biology of for the genus, and discovery of a novel wing morphology in males. Proceedings of the Entomological Society of Washington.

Robert M. Pringle

Upgrading protected areas to conserve wild biodiversity. Nature.

Janzen, D.H. and Hallwachs, W. 

Biodiversity Conservation History and Future in Costa Rica: The Case of Area de Conservacion Guanacaste (ACG).  Chapter 10.  In Costa Rican Ecosystems, Kappelle, M. ed. University of Chicago Press, Chicago.

Janzen, D. H. and Hallwachs, W.

DNA barcoding the Lepidoptera inventory of a large complex tropical conserved wildland, Área de Conservación Guanacaste, northwestern Costa Rica. Genome.

Schmiedel, U., Araya, Y., Bortolotto, M. I., Boeckenhoff, L., Hallwachs, W., Janzen, D.H., Kolipaka, S. S., Novotny, V., Palm, M., Parfondry, M., Smanis, A., and Toko, P.

Contributions of paraecologists and parataxonomists to research, conservation, and social development. Conservation Biology.

Fleming, A.J., Wood, D.M., Smith, M.A., Hallwachs, W., Janzen, D.H., and Dapkey, T.

Two new species of Erythromelana Townsend, 1919 (Diptera: Tachinidae) from Área de Conservación Guanacaste in northwestern Costa Rica. Biodiversity Data Journal.

Fleming, A.J., Wood, D.M., Smith, M.A., Janzen, D.H., Hallwachs, W. and Dapkey, T.

A new species of Phosocephala Townsend, 1908 (Diptera: Tachinidae) from Área de Conservación Guanacaste in northwestern Costa Rica. Biodiversity Data Journal.

Fernandez-Triana, J., Boudreault, C., Dapkey, T., Smith, M.A., Rodriguez, J. J., Hallwachs, W., and Janzen, D. H. 

Revision of the genus Promicrogaster (Hymenoptera, Braconidae, Microgastrinae) from Área de Conservación Guanacaste, Costa Rica, with a key to all species previously described from Mesoamerica. Journal of Hymenoptera Research.

Fernandez-Triana, J., Whitfield, J. B., Smith, M. A., Dapkey, T., Hallwachs, W. and Janzen, D. H.

Review of the world species of Exoryza (Hymenoptera, Braconidae, Microgastrinae), with description of five new species. Deutsche Entomologische Zeitschrift.

Miller, S. E., Hausmann, A., Hallwachs, W. and Janzen, D. H.

Advancing taxonomy and bioinventories with DNA barcodes. Philosophical Transactions of the Royal Society B.

Regier, J.C., Mitter, C., Mitter, K., Cummings, M. P., Bazinet, A. L., Hallwachs, W., Janzen, D. H., and Zwick, A. 

Further progress on the phylogeny of Noctuoidea (Insects: Lepidoptera) using an expanded gene sample. Systematic Entomology.

Isidro A. Chacón, José Montero-Ramírez, Daniel H. Janzen, Winnie Hallwachs, Patrick Blandin, C. R. Bristow, and Mehrdad Hajibabaei.

A new species of Opsiphanes Doubleday, [1849] from Costa Rica (Nymphalidae: Morphinae: Brassolini), as revealed by its DNA barcodes and habitus, Bulletin of the Allyn Museum.

Janzen, D. H.

Hope for tropical biodiversity through true bioliteracy. BioTropica.

Julie Whitbeck

Review:  Green Phoenix: Restoring the Tropical Forests of Guanacaste, Costa Rica, by journalist William Allen 2001. Restoration Ecology.

Daniel H. Janzen

Costa Rica’s Área de Conservación Guanacaste: a long march to survival through non-damaging biodiversity and ecosystem development. Biodiversity.

Daniel Janzen

Gardenification of Wildland Nature and the Human Footprint. Science.