• Estudios sobre la estabilidad del virus del rayado fino del maíz por degradación enzimática del ARN viral y microscopia electrónica de las partículas 

  Pereira Reyes, Reinaldo; León Azofeifa, Pedro (1986)

  The stability of "Maize Rayado Fino Virus" capsids was studied correlating enzymatic degradation analysis of the RNA in full capsids with electron microscopy of negatively stained particles. The great thermal stability of ...

• Inflammation and uPAR-Expression in Colorectal Liver Metastases in Relation to Growth Pattern and Neo-adjuvant Therapy 

  Eefsen, Rikke Loevendahl; Engelholm, L.; Alpízar Alpízar, Warner; Van den Eynden, Gert G. E.; Vermeulen, Peter B.; Christensen, Ib J.; Laerum, Ole Didrik; Rolff, Hans Christian; Høyer Hansen, Gunilla; Vainer, B.; Osterlind, Kell; Illemann, Martin (2015-08-14)

  Proteolytic activity and inflammation in the tumour microenvironment affects cancer progression. In colorectal cancer (CRC) liver metastases it has been observed that three different immune profiles are present, as well ...

• Detalles estructurales de la especie Nothrus willmanni Mahunka 1983 

  Retana Salazar, Axel P.; Alvarado Rodríguez, Olman (2015-12)

  En la descripción original de la especie Nothrus willmanni Mahunka 1983, se registra que esta especie presenta algunos caracteres únicos en este género. Sin embargo, algunos detalles estructurales no fueron incluidos, ...

• The genus Alwisia (Myxomycetes) revalidated, with two species new to science 

  Leontyev, Dmitry V.; Schnittler, Martin; Moreno Horcajada, Gabriel; Stephenson, Steven L.; Mitchell, David W.; Rojas Alvarado, Carlos Alonso (2014)

  Based on morphological investigations and a phylogeny constructed with partial sequences of the SSU rDNA gene, we revalidate the genus Alwisia and propose the combination Alwisia bombarda Berk. & Broome to be used ...

• Primera cita de la filoxera de la vid, Daktulosphaira vitifoliae (Fitch)(Hemiptera: Phylloxeridae) en Costa Rica 

  Pérez Hidalgo, Nicolás; Villalobos Muller, William (2013-12-31)

  Se cita por vez primera la filoxera de la vid, Daktulosphaira vitifoliae (Fitch), de Costa Rica, donde se ha encontrado sobre Vitis vinifera (cultivares “Santillán” y “criolla negra”).

• Additions to the myxobiota of Central America 

  Rojas Alvarado, Carlos Alonso; Calvo, Erick (2014)

  Given the fact that until recently the myxomycetes were an understudied group in Central America, it is not surprising that the number of new records for most countries is currently increasing at a steady pace. This is ...

• The neotropical damselfly genus Cora: new larval descriptions and a comparative analysis of larvae of known species (Odonata: Polythoridae) 

  Ramírez Ulate, Luis Alonso; Altamira Saavedra, Mariano; Gutiérrez Fonseca, Pablo E.; Springer Springer, Monika (2011)

  The final larval stadium of four species of Cora are described and compared with known species in the genus. Cora skinneri Calvert, 1907, C. semiopaca Selys, 1878 and C. lugubris Navás, 1934 are described and illustrated ...

• First Record of the Family Potamocoridae (Hemiptera: Heteroptera) in Costa Rica and of Coleopterocoris Hungerford, 1942 in Central America 

  Herrera, Federico; Springer Springer, Monika (2012)

  The Neotropical family Potamocoridae includes nine species in the genera Coleopterocoris Hungerford, 1942 and Potamocoris Hungerford, 1941. The biology of the family is barely known and most of the species mentioned in the ...

• Rhaebo haematiticus (litter toad) and Craugastor fitzingeri (Fitzinger's rain frog) reproductive behavior 

  Stynoski, Jennifer Lynn; Castro, Enrique; Vargas Ramírez, Orlando (2013-03)

  C. fitzingeri was observed in amplexus with a large female R. haematiticus at Sarapiquí, Costa Rica

• New species of Potamocoris Hungerford (Heteroptera, Potamocoridae) from Costa Rica and a key to the species 

  Herrera, Federico; Springer Springer, Monika (2014)

  A new potamocorid species, Potamocoris sitesi NEW SPECIES, with its two wing morphs (coleopteroid and macropterous) are described from Costa Rica. Descriptions are supported with photographs and illustrations. Parameres ...

• New records of Gerromorpha (Insecta: Hemiptera: Heteroptera) from Costa Rica 

  Pacheco Chaves, Bernald; Moreira, Felipe Ferraz Figueiredo; Springer Springer, Monika (2014-02-01)

  The Gerromorpha from Costa Rica are poorly studied, except the Gerridae. Aiming to fill this gap, specimens collected across the country were examined. Lipogomphus leucostictus, Hydrometra alloiona, H. australis, H. ...

• A new species of Anacroneuria Klapálek 1909 (Plecoptera: Perlidae) and notes on the altitudinal distribution of the genus in Costa Rica 

  Gutiérrez Fonseca, Pablo E.; Springer Springer, Monika (2015)

  Anacroneuria is the most widespread genus of Perlidae throughout the Neotropical Region and 30 species have been reported from Costa Rica. In this paper, we describe and illustrate a new species from a high elevation cloud ...

• The larva of Perissolestes remotus (Williamson & Williamson, 1924) (Zygoptera: Perilestidae) 

  Román Heracleo, Jareth; Springer Springer, Monika; Ramírez Ulate, Luis Alonso (2018)

  The larva of Perissolestes remotus is described for the first time based on Costa Rican specimens collected in forested streams with abundant organic matter. It is characterized by a slender, elongated body, with lateral ...

• Does habitat loss affect tropical myxomycetes? 

  Rojas Alvarado, Carlos Alonso; Doss, Robin G. (2014-10-29)

  The effect of habitat loss on the dynamics of myxomycete assemblages has been poorly studied thus far. For this reason, a premontane moist forest surrounded by human-created pastures on the Caribbean slope of Costa Rica ...

• The water striders (Hemiptera: Heteroptera: Gerridae) of Costa Rica: new species, checklist, and new records 

  Pacheco Chaves, Bernald; Cordeiro, Isabelle Da Rocha Silva; Moreira, Felipe Ferraz Figueiredo; Springer Springer, Monika (2018)

  Brachymetra bernaldi Cordeiro, sp. nov. (Hemiptera: Heteroptera: Gerridae) from Heredia, Costa Rica, is herein described, illustrated, and compared with congeners. The new species resembles B. albinervus (Amyot & Serville, ...

• Comparison of two sampling methods for biomonitoring using aquatic macroinvertebrates in the Dos Novillos River, Costa Rica 

  Stein, Heide; Springer Springer, Monika; Kohlmann, Bert (2008)

  Benthic macroinvertebrates are the most commonly suggested group of organisms for freshwater biomonitoring and have been extensively studied in temperate areas. On the other hand, the methodology and theoretical background ...

• Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: Birrís River, Irazú Volcano (Costa Rica) 

  Vásquez, Danny; Marchamalo Sacristán, Miguel; Springer Springer, Monika; Acosta Rivas, Raúl; González Rodrigo, Beatriz (2018)

  Background. Tropical mountain rivers are strategic sources of water for human development while biological communities are indicators of the status of these ecosystems. However, volcanic basins close to large urban areas ...

• Life history of five small minnow mayflies (Ephemeroptera: Baetidae) in a small tropical stream on the Caribbean slope of Costa Rica 

  Vásquez, Danny; Flowers, Wills R.; Springer Springer, Monika (2009)

  Life history characteristics of five species of Baetidae were investigated over a one-year period at Quebrada Gonza´ lez, a warmwater stream in Braulio Carrillo National Park. Larvae of three species of Baetodes and two ...

• Description of the final instar nymphs of seven species from Anacroneuria Klapálek (Plecoptera: Perlidae) in Costa Rica, and first record for an additional genus in Central America 

  Gutiérrez Fonseca, Pablo E.; Springer Springer, Monika (2011)

  The final nymphal stages for seven species of Anacroneuria Klapálek from Costa Rica are described for the first time based upon reared specimens: A. benedettoi Stark, 1998, A. divisa (Navás, 1924), A. holzenthali Stark, ...

• Description of the larva and pupa of Limnephilus hamifer Flint 1963 (Trichoptera, Limnephilidae) from Costa Rica 

  Springer Springer, Monika; Bermúdez Monge, Jenny (2018)

  Se describe e ilustra por primera vez la larva y pupa de Limnephilus hamifer Flint 1963. La descripción está basada en material recolectado y criado del macizo montañoso Cerro de la Muerte de Costa Rica, además de material ...

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