Listar Ciencias básicas por tipo "revista divulgativa"

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    • A highly threatened new species of Vanilla from Costa Rica 

      Karremans Lok, Adam Philip; Lehmann, Patricia (2018)
      A new species of Vanilla is described and illustrated from the southeastern tip of Costa Rica, close to the border with Panama. Vanilla karenchristianae was found in a region of the country that has no protected areas and ...

    • A wew form of Cattleya dowiana and the taxonomy of its color variations 

      Pupulin, Franco (2015)
      A new form of Cattleya dowiana, subsp. dowiana forma carmoniana Pupulin, is described. The taxonomy of the color forms of Cattleya dowiana is presented and discussed. New nomenclatural combinations are made.

    • An overview of bird records committees in the Neotropics 

      Freile, Juan; Solano Ugalde, Alejandro; Kenefick, Martyn; Lees, Alexander; Piacentini, Vítor; Sandoval Vargas, Luis Andrés; Valqui, Thomas; Angulo Pratolongo, Fernando; Miranda, Jonathan; Claessens, Olivier; Sharpe, Christopher (2018)
      Neotropical bird records committees have been growing in numbers, remit and prominence in recent years. This feature – by members of those committees – explains how and why committees were established and encourages birders ...

    • Batimetría, modelos de elevación digital y sus aplicaciones 

      Lizano Rodríguez, Omar Gerardo (2009)
      En este trabajo se resume la historia de los sondeos batimétricos y los equipos utilizados en el estudio de la rugosidad marina. Se hace referencia a las distintas instituciones internacionales a cargo de la elaboración ...

    • Book Review. The Paphinia Book, by Rudolf Jenny 

      Pupulin, Franco (2018-07)

    • Brachionium kirbyi, a new species honoring the founder of the “Bosque de Paz” Orchid Project in Costa Rica 

      Karremans Lok, Adam Philip; Bogarín Chaves, Diego Gerardo (2015)
      A new species of Brachionidium from Costa Rica is described and illustrated. Brachionidium kirbyi is most similar to Brachionidium dressleri Luer. It can be recognized by the erect plants, up to 14 cm tall, often branching, ...

    • Capillitial extrusion from fruits of Maxillaria nardoides (Orchidaceae: Maxillariinae) 

      Blanco Coto, Mario Alberto; Whitten, W. Mark; Williams, Norris H.; Koehler, Samantha (2006-09)
      The fruits of Maxillaria nardoides are fusiform, 1–1.2 × 0.3 cm. Upon dehiscence, six valves separate completely at the apex, and a long cylindric mass (up to 6.5 cm long × 3 mm in diameter) of white hygroscopic trichomes ...

    • Costa Rica, land of endless orchids 

      Karremans Lok, Adam Philip; Bogarín Chaves, Diego Gerardo (2013-07)
      With almost 1,600 reported species (Karremans et al. 2012), Costa Rica has one of the richest orchid floras in tropical America, currently surpassed in total species number only by Brazil, Colombia, Ecuador and Peru (Govaerts ...

    • Defining Generic Limits in Maxillaria. A Return to the Orchidaceous Mine 

      Blanco Coto, Mario Alberto (2011)
      If one goes orchid hunting in the forests of Central or South America, odds are that one of the first orchids you will encounter will be a Maxillaria or one of its close relatives. Maxillarias comprise a large percentage ...

    • Dracontia, the little-known dragon orchids 

      Karremans Lok, Adam Philip (2011-09)
      The dragon orchids (genus Dracontia) represent a small group of mostly Central American species in the Pleurothallidinae. Their relatively large, uniquely shaped and diversely ornate flowers set them apart from their close ...

    • El factor humano en la regeneración de bosques 

      Morales Sánchez, Carlos (2004-06)
      Se proponen ideas prácticas para la recuperación de bosques, valorando tres estrategias: A) Regeneración natural, sin intervención antropógena más allá de la protección física (ej., cercas, vallas, rondas contra incendios) ...

    • La Física en la Universidad de Costa Rica 

      Fernández Rojas, Walter (1995)
      El objetivo del presente artículo es describir en forma resumida el estado actual (1994) del desarrollo de la Física en la Universidad de Costa Rica. Las actividades de investigación que se describirán son realizadas por ...

    • Física y Poesía: T.S. Eliot 

      Fernández Rojas, Walter; Carboni Méndez, Rodrigo; Alfaro, Vilma (1992)
      Tres poemas de T.S. ELIOT, publicados en 1989, sugieren que el autor tenía conocimientos tanto de física clásica como de física moderna. En este artículo se describen los conceptos físicos tratados y se hace referencia ...

    • Horichia dressleri. A new genus recorded for Costa Rica and a truly rare orchid? 

      Pupulin, Franco; Karremans Lok, Adam Philip (2017)
      Orchid collectors, as well as scientists, know that some species are rarer than others. “Know” should perhaps be used in this context with some caution as, in general, rarity is something closer to a perception than ...

    • In memoriam – Dora Emilia Mora de Retana (24.08.1940 – 12.07.2001) 

      Morales Sánchez, Carlos (2001)
      Se resumen aspectos sobresalientes de la vida académica de la orquideóloga costarricense Dora Emilia Mora y se mencionan algunas de sus principales contribuciones en taxonomía y conservación de las orquídeas.

    • Maxillaria sanguinea f. exsanguis f. nov. A new and rare form of an attractive species of Maxillaria (Orchidaceae) 

      Salguero Hernández, Grettel; Pupulin, Franco (2020-05)
      A new form of Maxillaria sanguinea with pale, yellowish and white flowers, is described from Costa Rica as f. exsanguis, and a composite illustration of the new taxon is provided.

    • Orchids of Paradise 

      Pupulin, Franco; Bogarín Chaves, Diego Gerardo (2018)
      WHERE IT ALL BEGAN The Italian explorer and navigator Cristoforo Colombo (Christopher Columbus, c.1451–1506) discovered the paradise during his fourth voyage across the Atlantic Ocean, when searching for a passage west ...

    • Las orquídeas de la Isla del Coco 

      Trusty, Jennifer; Blanco Coto, Mario Alberto (2005-08)
      A pesar de que a veces parece que el mundo se ha vuelto demasiado pequeño y muy bien conocido, todavía hay algunos lugares remotos y solitarios que no han sido totalmente conquistados por el hombre. La Isla del Coco es uno ...

    • Orquídeas, Tesoro de Colombia 

      Pupulin, Franco (2019)
      In this second volume of the work, the generic treatment is preceded by an extensive chapter on orchids and philately in Colombia, written by Antonio Raad Aljure and profusely illustrated with photographs taken by ...

    • Phragmipedium humboldtii (Warsz.) J.T. Atwood & Dressler: on the correct name for the Central American long-petaled Phragmipedium; again 

      Pupulin, Franco (2016)
      I was quite convinced that the complicated taxonomic history of the Central American long-petaled Phragmipedium, which has been misunderstood for over a century and caused a lot of uncertainties among both professional ...