Daniel H. Janzen
Daniel Hunt Janzen (born January 18, 1939, in Milwaukee, Wisconsin) is an American evolutionary ecologist and conservationist. He divides his time between his professorship in biology at the University of Pennsylvania, where he is the DiMaura Professor of Conservation Biology, and his research and field work in Costa Rica.Janzen and his wife Winifred Hallwachs have catalogued the biodiversity of Costa Rica. Through a DNA barcoding initiative, Janzen and geneticist Paul Hebert have registered over 500,000 specimens representing more than 45,000 species, which has led to the identification of cryptic species of near-identical appearance that differ in terms of genetics and ecological niche. Janzen and Hallwachs developed some of the most influential hypotheses in ecology that continue to influence research more than 50 years later. Janzen and Hallwachs helped to establish the Area de Conservación Guanacaste World Heritage Site, one of the oldest, largest and most successful habitat restoration projects in the world. Provided by Wikipedia
1
Portal de Revistas UCR
artículo original
Published 1976
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR
2
Portal de Revistas UNA
artículo original
Published 1999
Institution:
Universidad Nacional de Costa Rica
Repositorio:
Portal de Revistas UNA
3
Portal de Revistas UNA
artículo original
Published 1999
Institution:
Universidad Nacional de Costa Rica
Repositorio:
Portal de Revistas UNA
4
Portal de Revistas UCR
artículo original
Published 2006
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR
5
Portal de Revistas UCR
artículo original
Published 2004
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR
6
Portal de Revistas UCR
artículo original
by Sittenfeld, Ana, Uribe-Lorío, Lorena, Mora, Marielos, Nielsen, Vanesa, Arrieta, Glen, Janzen, Daniel H
Published 2002
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR
7
Kérwá
artículo original
by Nielsen Muñoz, Vanessa, Hurtado Hernández, Priscilla, Janzen, Daniel Hunt, Tamayo Castillo, Giselle, Sittenfeld Appel, Ana
Published 2004
Institution:
Universidad de Costa Rica
Repositorio:
Kérwá
8
Kérwá
artículo original
by Sittenfeld Appel, Ana, Uribe Lorío, Lorena, Mora López, Marielos, Nielsen Muñoz, Vanessa, Arrieta Castro, Glen, Janzen, Daniel Hunt
Published 2002
Institution:
Universidad de Costa Rica
Repositorio:
Kérwá
9
Portal de Revistas UCR
artículo original
by Pinto Tomás, Adrián, Uribe Lorío, Lorena, Blanco, John, Fontecha, Gustavo, Rodríguez, César, Mora, Marielos, Janzen, Daniel, Chavarría, Felipe, Díaz, Joel, Sittenfeld, Ana
Published 2007
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR
10
Kérwá
artículo original
by Sittenfeld Appel, Ana, Tamayo Castillo, Giselle, Nielsen Muñoz, Vanessa, Jiménez Ardón, Allan Miguel, Hurtado Hernández, Priscilla, Chinchilla Carmona, Misael, Guerrero Bermúdez, Olga Marta, Mora, María Auxiliadora, Rojas, Miguel, Blanco, Roger, Alvarado, Eugenio, Gutiérrez, José María, Janzen, Daniel Hunt
Published 1999
Institution:
Universidad de Costa Rica
Repositorio:
Kérwá
11
Portal de Revistas UCR
artículo original
by Sharkey, Michael J. , Baker, Austin, McCluskey, Kathryn , Smith, Alex, Naik, Suresh, Ratnasingham, Sujeevan, Manjunath, Ramya, Perez, Kate, Sones, Jayme, D’Souza, Michelle, St. Jacques, Brianne, Hajibabaei, Mehrdad, Whitfield, Jim, Arias, Diana, Solis, Alma, Metz, Mark, Burns, John, Zuñiga, Ronald, Phillips-Rodriguez, Eugenie, Espinoza, Bernardo, Chacon, Isidro, Hebert, Paul, Hallwachs, Winnie, Janzen, Daniel
Published 2023
Institution:
Universidad de Costa Rica
Repositorio:
Portal de Revistas UCR