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Now showing items 1-20 of 538

1 Review of Apanteles sensu stricto (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservación Guanacaste, northwestern Costa Rica, with keys to all described species from

Fernandez-Triana, Jose L.; Whitfield, James B.; Rodriguez, Josephine J.; Smith, Alex M.; Janzen, Daniel H.; Hallwachs, Winnie D.; Hajibabaei, Mehrdad; Burns, John M.; Solis, Alma M.; Brown, John; Cardinal, Sophie; Goulet, Henri; Hebert, Paul D. N. (ZooKeys, 2014-01)

More than half a million specimens of wild-caught Lepidoptera caterpillars have been reared for their parasitoids, identified, and DNA barcoded over a period of 34 years (and ongoing) from Area de Conservación de Guanacaste ...
17 new species hiding in 10 long-named gaudy tropical moths (Lepidoptera: Erebidae, Arctiinae)

Espinoza, Bernardo A.; Janzen, Daniel H.; Hallwachs, Winnie (2017-12-19)

Neotropical arctiine moths (Erebidae) are generally brilliantly colored and therefore believed to be aposematic, in light of the of the frequent occurrence of glands that produce unpleasant chemicals as a defense mechanism ...
2,4-Methanoproline (2-Carboxy-2,4-methanopyrrolidine) and 2,4-Methanoglutamic Acid (l-Amino-l ,3-dicarboxycyclobutane) in Seeds of Ateleia herbert smithii Pittier (Leguminosae)

E., Arthur Bell; M., Yasin Qureshi; Pryce, Robert J.; Janzen, Daniel H.; Lemke, Paula; Clardy, Jon (1979-06-25)

A new acidic amino acid, 2,4-methanoglutamic acid, containing a cyclobutane ring and a new imino acid, 2,4-methanoproline, containing the previously unknown 2-azabicyclo[2.1.I)hexane system have been isolated from seeds ...
A Bat-Generated Fig Seed Shadow in Rainforest

Janzen, Daniel H. (1978-06)
A broad look at prospect for restoration in Central and South America raises some basic questions about methods about goals, and about the restorationist's role in evolution

Janzen, Daniel H. (1992)
A Census of Alouatta nalliata and Cebus capucinus Monkeys In Santa Rosa National Park, Costa Rica

Linda, Fredigan; Laurence, Fredigan; Colin, Chapman (1980)

Los primates constituyen el grupo de mamíferos arbóreos mas grande y numeroso del Nuevo Mundo. En algunos bosques tropicales ellos son los principales vertebrados frutiboros y foliboros que represen tan a una significativa ...
A comparison, by sweep sampling, of the arthropod fauna of secondary vegetation in Michigan, England and Costa Rica

Janzen, Daniel H.; M. Pond, Caroline (1975)

1. Six 8oo-sweep samples of English and Michigan ("old field") secondary vegetation arthropods are compared with Costa Rican samples taken in the same way. 2. Parasitic Hymenoptera and spiders accounted for a larger ...
A dry tropical forest ecosystem restored

Janzen, Daniel H. (1983)

People are raJl)'lng In countries of the South as weU as the Nurth to preserve tropical rain forests. Tropical dry foresli. on the other hand. have excited and organized mucl! less public interest and con· cern. These ...
A five-gene molecular phylogeny reveals Parapanteles Ashmead (Hymenoptera: Braconidae) to be polyphyletic as currently composed

Parks, K.S.; Janzen, Daniel H.; Hallwachs, Winnie; Fernandez-Triana, J.; Dyer, L. A.; Rodriguez, J. J.; Arias-Penna, D. C.; Whitfield, J. B. (ScienceDirect, 2020-09)

Parapanteles Ashmead (Braconidae: Microgastrinae) is a medium-sized genus of microgastrine wasps that was erected over a century ago and lacks a unique synapomorphic character, and its monophyly has not been tested by any ...
A Host Plant Is More Than Its Chemistry

Janzen, Daniel H. (1985-09)
A new brachypterous species of Heterospilus Haliday (Braconidae, Doryctinae) from the Neotropical Region

R. Kula, Robert (Journal of Hymenoptera Research, 2013-08-01)

A new species, Heterospilus michaeli Kula, from the Neotropical Region is described and di"erentiated from all other New World species of Doryctinae with brachypterous or apterous individuals. It is the #rst ...
A new genus and new species in the tribe Uramyini (Diptera: Tachinidae) from Area de Conservación Guanacaste in northwestern Costa Rica

Fleming, AJ; Wood, D. Monty; Smith, M. Alex; Dapkey, Tanya; Hallwachs, Winnie; Janzen, Daniel H. (Biodiversity Data Journal, 2020-02-21)

Background We describe one new genus and its one new species from Area de Conservación Guanacaste (ACG) in northwestern Costa Rica. Our study provides a concise description of this new species using morphology, life ...
A New Montane Species of Spiny Pocket Mouse (Rodentia: Heteromyidae: Heteromys) from Northwestern Costa Rica

Anderson, Robert P.; Timm, Robert M. (American Museum Novitates, 2006-03)

Recent taxonomic works have recognized only two species of spiny pocket mice of the genus Heteromys (Rodentia: Heteromyidae) from Costa Rica. Within Costa Rica, the widespread H. desmarestianus is considered to occur ...
A new poroid species of Resupinatus from Puerto Rico, with a reassessment of the cyphelloid genus Stigmatolemma

Thorn, R. Greg; Moncalvo, Jean-Marc; Redhead, Scott A.; Lodge, D. Jean; Martín, María P. (Mycologia, 2005)

A fungus with gelatinous poroid fruiting bodies was found in Puerto Rico and determined by macro- and micromorphology to be most similar to members of the lamellate agaric genus Resupinatus. This species is described as a ...
A new poroid species of Resupinatus from Puerto Rico, with a reassessment of the cyphelloid genus Stigmatolemma

R. Greg, Thorn; Jean-Marc, Moncalvo; Scott A., Redhead; D. Jean, Lodge; María P., Martın (The Mycological Society of America, 2005)

A fungus with gelatinous poroid fruiting bodies was found in Puerto Rico and determined by macro- and micromorphology to be most similar to members of the lamellate agaric genus Resupinatus. This species is described as a ...
A new species of Callianidea H. Milne Edwards, 1837 (Decapoda, Axiidea, Callianideidae) from the Pacific coast of Central America, with key to the genus

Patricio, Hernández; Rita, Vargas (2013)

A new callianideid species, Callianidea mariamartae n. sp. is described from the Pacific coast of Costa Rica. The material is compared with the type description of C. laevicauda Gill, 1859 and C. typa H. Milne Edwards, ...
A new species of Cordyligaster Macquart, reared from caterpillars in Area de Conservacion Guanacaste, northwestern Costa Rica

AJ, Fleming; D Monthy, Wood; M Alex, Smith; Daniel, Janzen; Winnie, Hallwachs (Biodiversity Data Journal, 2014-11-24)

We describe a new species of Cordyligaster Macquart (Diptera: Tachinidae) from Area de Conservacion Guanacaste (ACG) in northwestern Costa Rica. Cordyligaster capellii sp. n., is described and photographed. All specimens ...
A new species of poeciliid fish, Poeciliopsis santaelena, from Peninsula Santa Elena, Area de Conservación Guanacaste, Costa Rica

Bussing, William A. (Revista de Biología Tropical, 2008-06)

An undescribed freshwater fish was recently discovered during a biological inventory of Area de Conservación Guanacaste, northwestern Costa Rica. This new species of Poeciliopsis is closely related to a group of widespread ...
A new species of poeciliid fish, Poeciliopsis santaelena, from Peninsula Santa Elena, Area de Conservación Guanacaste, Costa Rica

Bussing, William A. (2008-06)

An undescribed freshwater fish was recently discovered during a biological inventory of Area de Conservación Guanacaste, northwestern Costa Rica. This new species of Poeciliopsis is closely related to a group of widespread ...
A Positive Trajectory for Corals at Little Cayman Island

Manfrino, Carrie; Jacoby, Charles A.; Camp, Emma; Frazer, Thomas K. (2013-10-09)

Coral reefs are damaged by natural disturbances and local and global anthropogenic stresses. As stresses intensify, so do debates about whether reefs will recover after significant damage. True headway in this debate ...

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