Prasmodon zlotnicki, a new Neotropical species of the genus Prasmodon Nixon (Braconidae: Microgastrinae) from Costa Rica, with the first host records for the genus

Zootaxa ◽  
2005 ◽  
Vol 1016 (1) ◽  
pp. 29 ◽  
Author(s):  
ALEJANDRO A. VALERIO ◽  
JOSEPHINE J. RODRIGUEZ ◽  
JAMES B. WHITFIELD ◽  
DANIEL H. JANZEN
Keyword(s):  
Costa Rica ◽  
Rain Forest ◽  
Costa Rican ◽  
Leaf Rolling ◽  
Neotropical Species ◽  
Forest Habitats

Prasmodon zlotnicki, a new Costa Rican species of the genus Prasmodon Nixon, is described and illustrated. In addition, the first host records for the genus are included along with an updated key to differentiate Prasmodon zlotnicki from P. eminens Nixon. Prasmodon is now known to attack several species of leaf-rolling and leaf-webbing Crambidae (Lepidoptera) in rain forest habitats.

A distinctive new species of Euglyphis Hübner (Lepidoptera: Lasiocampidae) from Costa Rica, with a checklist of the Euglyphis known from Costa Rica

Zootaxa ◽  
2011 ◽  
Vol 3020 (1) ◽  
pp. 49 ◽  
Author(s):  
JOSÉ JOAQUÍN MONTERO-RAMÍREZ ◽  
DANIEL H. JANZEN ◽  
WINNIE HALLWACHS
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Natural History ◽  
Rain Forest ◽  
Costa Rican ◽  
Female Genitalia ◽  
Male And Female

Euglyphis jessiehillae Montero, new species, is described from Costa Rican rain forest. Photographs of the adult, larva and cocoon, as well as male and female genitalia, are provided. In addition to its description and natural history, we include a checklist for the described members of the genus Euglyphis known from Costa Rica.

scholarly journals A taxonomic study of Costa Rican Leptodrepana with the description of twenty-four new species (Hymenoptera, Braconidae, Cheloninae)

ZooKeys ◽  
2018 ◽  
Vol 750 ◽  
pp. 59-130 ◽  
Author(s):  
Samin D. Dadelahi ◽  
Scott R. Shaw ◽  
Helmuth Aguirre ◽  
Luis Felipe V. de Almeida
Keyword(s):  
New Species ◽  
Costa Rica ◽  
North American ◽  
Species Group ◽  
Costa Rican ◽  
North American Species ◽  
Character State ◽  
Taxonomic Study ◽  
Neotropical Species ◽  
Female Antenna

The genus Leptodrepana Shaw was described in 1983, but prior to the current study only one Neotropical species had been described from Mexico and none were named from Costa Rica. In this paper twenty-four new species are described and named from Costa Rica: L.alexisae Dadelahi & Shaw, sp. n., L.atalanta Dadelahi & Shaw, sp. n., L.conda Dadelahi & Shaw, sp. n., L.conleyae Dadelahi & Shaw, sp. n., L.demeter Dadelahi & Shaw, sp. n., L.eckerti Dadelahi & Shaw, sp. n., L.gauldilox Dadelahi & Shaw, sp. n., L.hansoni Dadelahi & Shaw, sp. n., L.kimbrellae Dadelahi & Shaw, sp. n., L.lorenae Dadelahi & Shaw, sp. n., L.munjuanae Dadelahi & Shaw, sp. n., L.ninae Dadelahi & Shaw, sp. n., L.pamelabbas Dadelahi & Shaw, sp. n., L.ronnae Dadelahi & Shaw, sp. n., L. rosanadana Dadelahi & Shaw, sp. n., L.schuttei Dadelahi & Shaw, sp. n., L.scottshawi Dadelahi, sp. n., L.shriekae Dadelahi & Shaw, sp. n., L.sohailae Dadelahi & Shaw, sp. n., L.sorayae Dadelahi & Shaw, sp. n., L.soussanae Dadelahi & Shaw, sp. n., L.stasia Dadelahi & Shaw, sp. n., L.strategeri Dadelahi & Shaw, sp. n., and L.thema Dadelahi & Shaw, sp. n. A key to Costa Rican species of Leptodrepana is provided. The flagellum of all female Leptodrepana described in this work is reduced to only 17 flagellomeres. This character state is also found in two North American species described by Shaw (1983), L.opuntiae Shaw and L.oriens Shaw. It is hypothesized that a female antenna with 17 flagellomeres is a synapomorphy for a species-group comprising all the Costa Rican Leptodrepana species as well as two of the Mexican and North American species, L.opuntiae and L.oriens.

Habitat-dependent fruiting behaviour of an understorey tree,Miconia centrodesma, and tropical treefall gaps as keystone habitats for frugivores in Costa Rica

1990 ◽  
Vol 6 (4) ◽  
pp. 409-420 ◽  
Author(s):  
Douglas J. Levey
Keyword(s):  
Costa Rica ◽  
Reproductive Success ◽  
Rain Forest ◽  
Fruit Production ◽  
Costa Rican ◽  
Forest Trees ◽  
Lowland Rain Forest ◽  
Treefall Gaps ◽  
Forest Sites ◽  
Understorey Plants

ABSTRACTFruit production by an understorey tree,Miconia centrodesma, was monitored in treefall gaps and under intact canopy in a Costa Rican lowland rain forest. Trees in gaps displayed much less seasonality in fruit production than trees of intact forest sites. For example, ripe fruits were common on gap trees for a six month period (January-June) when few or no trees under intact canopy were in fruit. The frequent and aseasonal fruiting of gap trees demonstrates that they are not constrained by phenological cueing mechanisms; the influence of such cues is overridden by habitat. Trees in gaps also produced larger crops, had more extended fruiting episodes, and fruited more frequently than shaded conspecifics. This level of intraspecific variation in fruiting behaviour suggests that treefall gaps play an important role in determining the reproductive success ofM. centrodesma. A substantial proportion of an individual's lifetime seed output may be produced during the brief period it occupies a gap. In addition, the large and continuous supply of fruits produced in gaps byM. centrodesmaand other understorey plants, may mean that gaps function as ‘keystone habitats’ by providing resident frugivores with fruit during periods of general fruit scarcity.

New records of and key to Tardigrada from Costa Rica

Zootaxa ◽  
2003 ◽  
Vol 177 (1) ◽  
pp. 1 ◽  
Author(s):  
ŁœUKASZ KACZMAREK
Keyword(s):  
Costa Rica ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
New Records ◽  
Costa Rican ◽  
Research Station ◽  
La Selva ◽  
Unidentified Species

Moss samples collected near the research station “La Selva” on the edge of Costa Rican tropical rain forest has yielded three species of Tardigrada: Hypsibius pallidus Thulin, Astatumen trinacriae (Arcidiacono) and Macrobiotus polyopus Marcus. Another three unidentified species from the genus Macrobiotus were also found. All identified species are new for Costa Rica. A key to the identification of all known species from Costa Rica is given.

The Meniscus midges of Costa Rica (Diptera: Dixidae)

Zootaxa ◽  
2007 ◽  
Vol 1575 (1) ◽  
pp. 1-34 ◽  
Author(s):  
LUIS GUILLERMO CHAVERRI ◽  
ART BORKENT
Keyword(s):  
Costa Rica ◽  
Costa Rican ◽  
Central American ◽  
Additional Species ◽  
Neotropical Species ◽  
High Elevations ◽  
Central American Species

A revision of the Dixidae of Costa Rica indicates that 10 named species of Dixella are present, eight of which are described as new (described stages indicated): D. fernandezae (%), D. hansoni (%),  D. hernandezi (%), D. jironi (%), D. lobata (%, &), D. maculata (%, &), D. suzukii (%, &), D. woodi (%).  Two named species were previously known from Costa Rica: D. shannoni Lane (%, &) and D. venezuelensis Lane (%, &).  A key to the species of Costa Rica is provided and other similar Neotropical species discussed.  An overview of all Central American species is given.  Five of the 10 Costa Rican species were collected above 1200 meters in elevation, indicating that further collecting, especially at high elevations will reveal further species.  Five additional species from Costa Rica remain unnamed because they are represented only by females.  A total of 15 species of Dixella are therefore present in this country.

Description of an unusual new Costa Rican species of Cerodontha (Dizygomyza) with additional notes on Neotropical species of Dizygomyza (Diptera: Agromyzidae)

Zootaxa ◽  
2005 ◽  
Vol 993 (1) ◽  
pp. 1 ◽  
Author(s):  
STÉPHANIE BOUCHER
Keyword(s):  
Costa Rica ◽  
Neotropical Region ◽  
Costa Rican ◽  
Additional Species ◽  
Neotropical Species

Cerodontha (Dizygomyza) nigrihalterata sp. nov. is described from Costa Rica. This species is unusual in having black halteres, the presence of only one upper orbital seta and infuscated wings. Two additional species of Dizygomyza are newly recorded from the Neotropical region: Cerodontha (Dizygomyza) luctuosa (Meigen) and Cerodontha (Dizygomyza) scirpioides Zlobin. Two Neotropical species of Cerodontha previously assigned to Dizygomyza are reassigned to subgenus Butomomyza: Cerodontha (Butomomyza) puertoricencis Spencer new comb. and Cerodontha (Butomomyza) orcina Spencer new comb.

Parity without Equality

2018 ◽  
Author(s):  
Jennifer M. Piscopo
Keyword(s):  
Costa Rica ◽  
Party System ◽  
Political Representation ◽  
Costa Rican ◽  
Women In Politics ◽  
Negative Consequences ◽  
Economic Problems ◽  
Crisis Of Representation ◽  
Female Legislators ◽  
Female President

Jennifer M. Piscopo examines how the crisis of representation in Costa Rica has placed a ceiling on gender equality in representation. The restructuring of the Costa Rican party system and party fragmentation has made electing multiple candidates from any one ballot more difficult. Top spots have become even more prestigious and more likely to be allocated to men, which reduces women’s electoral chances. Corruption scandals, party breakdown, citizen frustration, and economic problems tainted the administration of the nation’s first female president, Laura Chinchilla. Female legislators have often worked to promote women’s issues and feminist policies, but Chinchilla eschewed feminism, even though several of her policies did benefit women. Overall, her failed presidency may create difficulties for other women seeking top political offices and could have negative consequences for views of women in politics. These challenges notwithstanding, Piscopo concludes that Costa Rica remains at the vanguard of women’s political representation in Latin America.

Ants accelerate litter decomposition in a Costa Rican lowland tropical rain forest

2012 ◽  
Vol 28 (5) ◽  
pp. 437-443 ◽  
Author(s):  
Terrence P. McGlynn ◽  
Evan K. Poirson
Keyword(s):  
Mass Loss ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Rain Forest ◽  
Costa Rican ◽  
Tropical Rain Forests ◽  
Rain Forests ◽  
Food Web Structure ◽  
Litter Bags ◽  
Lowland Rain Forest

Abstract:The decomposition of leaf litter is governed, in part, by litter invertebrates. In tropical rain forests, ants are dominant predators in the leaf litter and may alter litter decomposition through the action of a top-down control of food web structure. The role of ants in litter decomposition was investigated in a Costa Rican lowland rain forest with two experiments. In a mesocosm experiment, we manipulated ant presence in 50 ambient leaf-litter mesocosms. In a litterbag gradient experiment, Cecropia obtusifolia litter was used to measure decomposition rate constants across gradients in nutrients, ant density and richness, with 27 separate litterbag treatments for total arthropod exclusion or partial arthropod exclusion. After 2 mo, mass loss in mesocosms containing ants was 30.9%, significantly greater than the 23.5% mass loss in mesocosms without ants. In the litter bags with all arthropods excluded, decomposition was best accounted by the carbon: phosphorus content of soil (r2 = 0.41). In litter bags permitting smaller arthropods but excluding ants, decomposition was best explained by the local biomass of ants in the vicinity of the litter bags (r2 = 0.50). Once the microarthropod prey of ants are permitted to enter litterbags, the biomass of ants near the litterbags overtakes soil chemistry as the regulator of decomposition. In concert, these results support a working hypothesis that litter-dwelling ants are responsible for accelerating litter decomposition in lowland tropical rain forests.

Using k-nn and discriminant analyses to classify rain forest types in a Landsat TM image over northern Costa Rica

2008 ◽  
Vol 112 (5) ◽  
pp. 2485-2494 ◽  
Author(s):  
Sirpa Thessler ◽  
Steven Sesnie ◽  
Zayra S. Ramos Bendaña ◽  
Kalle Ruokolainen ◽  
Erkki Tomppo ◽  
...  
Keyword(s):  
Costa Rica ◽  
Rain Forest ◽  
Landsat Tm ◽  
Forest Types ◽  
Landsat Tm Image ◽  
Tm Image ◽  
Discriminant Analyses

scholarly journals Formación docente inicial y acción socioeducativa: Construyendo una propuesta de implementación del Programa Maestros Comunitarios (PMC)

2017 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Paulette Barberousse-Alfonso ◽  
Marie Claire Vargas-Dengo ◽  
Pamela Corrales-Bastos
Keyword(s):  
Costa Rica ◽  
Elementary Education ◽  
Costa Rican ◽  
School Dropouts ◽  
Educational Models ◽  
Code Number ◽  
National University ◽  
Community Pedagogy ◽  
Transformative Approach ◽  
Career Program

From a critical and transformative approach, this essay presents inputs and relevant conclusions obtained during the first stage of the project Construyendo una propuesta de implementación del Programa Maestros Comunitarios (PMC), Code number 0166-15 DEB-UNA (UNA, DEB, s. f.), conducted in 2016. Considering our perspective as researchers and professors at División de Educación Básica, the paper addresses a current topic within the socio-educative field to face challenges of contemporary educational models in formal and non-formal areas of elementary education in the Costa Rican context. Our purpose is that students and teachers of the career program Pedagogía con énfasis en I y II ciclos de la Educación General Básica have an overview of the national, social, and educational reality in an attempt to involve them in applying pedagogical actions towards finding a solution to school dropouts at Escuela Finca Guararí, Heredia, Costa Rica. The essay describes the experience of teaching education students and their socio-educational action with the focus on the systematization of the experience in the initial stage of the project. Furthermore, the paper connects with emerging strategic knowledge areas at División de Educación Básica (DEB), such as social and community pedagogy in the context of the National University (UNA) of Costa Rica. It takes over a route already traced at DEB, which proposes more flexible and alternative pedagogic formats to promote educational equity and diversity issues. The paper describes the project background and a theoretical framework, as well as aspects that have been shared by the protagonist actors along the process: students-teachers, host teachers, supervisor professors, school children, and their parents at Escuela Finca Guararí. Conclusions address main results and facts during 2016 in order to show the viability of the project, which is conducted from a public university. Finally, the article also includes an overview of the project’s future in terms of its implementation in the Costa Rican context.

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