Vol. 13 No. 1 (2021)

Published: 2021-06-30

Issue general information

First pages 13(1)

e3565
DOI: https://doi.org/10.22458/urj.v13i1.3565
Reviewers list 2020

e3566
DOI: https://doi.org/10.22458/urj.v13i1.3566

Articles

Growth, photosynthesis and oxidative stress in Prosopis nigra (Fabaceae) under simulated glyphosate drift

Diego Ariel Meloni, Graciela Inés Bolzón

e3170
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DOI: https://doi.org/10.22458/urj.v13i1.3170
Xanthism in Costa Rican Cichlid fish (Cichliformes: Cichlidae), and ontogenetic variation in Parachromis dovii.

Arturo Angulo, Jorge San Gil

e3093
DOI: https://doi.org/10.22458/urj.v13i1.3093
The pampean gray fox (Lycalopex gymnocercus) as a disperser of blackberry seeds (Morus nigra)

Candela Duarte Baschini, Claudia M. Dellafiore

e3171
DOI: https://doi.org/10.22458/urj.v13i1.3171
Effect of hen housing (free-range, free cage, and cage) on fatty acids, consumption, and consumer perception of the eggs

Sianny Chavarría Zamora, Alejandro Chacón Villalobos, Rodolfo WingChing Jones

e3317
DOI: https://doi.org/10.22458/urj.v13i1.3317
Identification keys for the fish of continental and insular waters of Costa Rica. Part I: Families.

Arturo Angulo, Ana Rosa Ramírez Coghi, Myrna López Sánchez

e3145
DOI: https://doi.org/10.22458/urj.v13i1.3145
Physicochemical and microbiological quality of surface water in the Grande de Tárcoles River, Costa Rica: an ecological approach

Gabriela Pérez Gómez, Virginia Alvarado García, Jorengeth Abad Rodríguez Rodríguez, Federico Herrera, Rolando Sánchez Gutiérrez

e3148
DOI: https://doi.org/10.22458/urj.v13i1.3148
Feeding habitat of the understory arboreal snail Tikoconus costarricanus (Stylommatophora: Euconulidae) in a tropical montane wet forest, Costa Rica

Zaidett Barrientos

e3311
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- EPUB
DOI: https://doi.org/10.22458/urj.v13i1.3311
Spatial variation of physicochemical parameters in a constructed wetland for wastewater treatment: An example of the use of the R programming language

Junior Pastor Pérez-Molina, Carola Scholz, Roy Pérez-Salazar, Carolina Alfaro-Chinchilla, Ana Abarca Méndez, Leandro Araya Leitón, Jeslyn Carranza Chaves, Addy Echevarría Figueroa, Mariana Elizondo Blanco, Rachel Ardón Rivera, Sofía Flores Aguilar, Catalina Solís Calderón

e3294
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DOI: https://doi.org/10.22458/urj.v13i1.3294
Cyprinodontiform fishes of El Salvador

Francisco S. Álvarez, Saúl González Murcia, Caleb D. McMahan, Wilfredo A. Matamoros

e3303
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DOI: https://doi.org/10.22458/urj.v13i1.3303
First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico

Paola López Fuentes, Manuel de Jesús Anzueto Calvo , Ernesto Velázquez Velázquez , Wilfredo A. Matamoros, Guillermo Salgado Maldonado

e3266
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DOI: https://doi.org/10.22458/urj.v13i1.3266
Chemical composition of essential oils of the tree Melaleuca quinquenervia (Myrtaceae) cultivated in Costa Rica

José F. Cicció, Carlos Chaverri

e3327
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- EPUB
DOI: https://doi.org/10.22458/urj.v13i1.3327
Greenhouse gases emitted by agricultural vehicles in Costa Rica

Natalia Gómez Calderón , Javier Ernesto Rodríguez Yáñez, Edwin Fabián Fernández Fernández

e3278
DOI: https://doi.org/10.22458/urj.v13i1.3278
Waist circumference as a predictor of cardiovascular disease risk factors in Costa Rican residents aged 60 years and over.

Eduardo Aguilar Fernández, Ana Maricela Carballo Alfaro

e3398
DOI: https://doi.org/10.22458/urj.v13i1.3398
Selection criteria for yield in cucumber (Cucumis sativus) grown under greenhouse conditions during the dry season

José Eladio Monge Pérez, Karla Chacón Padilla, Michelle Loría Coto

e3373
DOI: https://doi.org/10.22458/urj.v13i1.3373

Hypothesis

Why sloths defecate on the ground: rejection of the mutualistic model

Julian Monge-Nájera

e3438
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DOI: https://doi.org/10.22458/urj.v13i1.3438

Vol. 13 No. 1 (2021)

Issue general information

First pages 13(1)

Reviewers list 2020

Articles

Growth, photosynthesis and oxidative stress in Prosopis nigra (Fabaceae) under simulated glyphosate drift

Xanthism in Costa Rican Cichlid fish (Cichliformes: Cichlidae), and ontogenetic variation in Parachromis dovii.

The pampean gray fox (Lycalopex gymnocercus) as a disperser of blackberry seeds (Morus nigra)

Effect of hen housing (free-range, free cage, and cage) on fatty acids, consumption, and consumer perception of the eggs

Identification keys for the fish of continental and insular waters of Costa Rica. Part I: Families.

Physicochemical and microbiological quality of surface water in the Grande de Tárcoles River, Costa Rica: an ecological approach

Feeding habitat of the understory arboreal snail Tikoconus costarricanus (Stylommatophora: Euconulidae) in a tropical montane wet forest, Costa Rica

Spatial variation of physicochemical parameters in a constructed wetland for wastewater treatment: An example of the use of the R programming language

Cyprinodontiform fishes of El Salvador

First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico

Chemical composition of essential oils of the tree Melaleuca quinquenervia (Myrtaceae) cultivated in Costa Rica

Greenhouse gases emitted by agricultural vehicles in Costa Rica

Waist circumference as a predictor of cardiovascular disease risk factors in Costa Rican residents aged 60 years and over.

Selection criteria for yield in cucumber (Cucumis sativus) grown under greenhouse conditions during the dry season

Hypothesis

Why sloths defecate on the ground: rejection of the mutualistic model

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