Now showing items 1-19 of 19

    • 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 ...
    • An update on the myxomycete biota (Amoebozoa: Myxogastria) of Colombia 

      Rojas Alvarado, Carlos Alonso; Herrera Loaiza, Natalia Andrea; Stephenson, Steven L. (2012-08-01)
      Twelve new records of myxomycetes are reported for Colombia. These additions increase the number of myxomycetes known from this country to 108 species. Since the Colombian territory is part of a biodiversity-rich region in ...
    • Assemblages of corticolous myxomycetes associated with species of Pinus (Pinaceae) in four different regions of the world 

      Stephenson, Steven L.; Marbaniang, Tanya M.; Gupta, Pragati; Rojas Alvarado, Carlos Alonso (2020-07-02)
      Corticolous myxomycetes associated with four species of pine in different regions of the world were investigated. Samples of bark collected from 20 trees in each region were used to prepare 240 moist chamber cultures, ...
    • Biogeographical assessment of myxomycete assemblages from Neotropical and Asian Palaeotropical forests 

      Dagamac, Nikki Heherson; Novozhilov, Yuri K.; Stephenson, Steven L.; Lado Rodríguez, Carlos; Rojas Alvarado, Carlos Alonso; de la Cruz, Thomas Edison E.; Unterseher, Martin; Schnittler, Martin (2017-03-16)
      Aim Lowland/highland and Neotropical/Asian Palaeotropical assemblages of myxomycetes were compared to test the null hypothesis that neither species diversity nor species composition differs between the two ecoregions. ...
    • Brief research history and status of myxomycete conservation in the Neotropics 

      Rojas Alvarado, Carlos Alonso; Doss, Robin G. (2012-11-08)
      As it is the case of most disciplines, biological groups and regions in the world; the historical path of research on myxomycetes in the Neotropical region has been written on the basis of a series of milestones, iconic ...
    • Carbono, bosques y micorrizas: una “negación de investigación imperativa” 

      Rojas Alvarado, Carlos Alonso; Doss, Robin G. (2014)
      El estudio integrado de los sistemas biológicos asociados con el secuestro y fijación de carbono no ha sido prioritario en la determinación de los protocolos de cuantificación de este elemento. Este caso de reduccionismo ...
    • Climate change-based modeling of potential land use arrangements for coffee (coffea arabica) and forest in Costa Rica 

      Coto Fonseca, Alberto; Rojas Alvarado, Carlos Alonso; Molina Murillo, Sergio Andrés (2017-12)
      Besides the need to reduce its own emissions, the challenge of the agricultural sector worldwide is also to adapt to a changing and more variable climate. Coffee is an important crop in Costa Rica based on cultivated area ...
    • 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 ...
    • Ecological patterns of lignicolous myxomycetes from two different forest types in Costa Rica 

      Rojas Alvarado, Carlos Alonso; Valverde González, Randall (2015-04-21)
      Lignicolous myxomycetes comprise an ecological guild that has been extensively studied in temperate areas. However, there is still incomplete information about the group for the tropics and thus, with the objective to ...
    • Effect of forest disturbance on myxomycete assemblages in the southwestern Peruvian Amazon 

      Rojas Alvarado, Carlos Alonso; Stephenson, Steven L. (2012-06-16)
      Although the effects of microenvironmental factors on distribution patterns in myxomycetes have been investigated, studies of the responses of this group of organisms to different regimes of forest disturbance are ...
    • First records of myxomycetes from El Salvador 

      Rojas Alvarado, Carlos Alonso; Morales, Ricardo; Calderón, Irene; Clerc, Philippe (2013-11-02)
      Myxomycetes have been studied formally in most of Central America except for El Salvador. Even though this country is the last in the region to begin an official inventory for this group of organisms, the 37 new records ...
    • ¿Funcionan realmente los microorganismos de montaña (MM) como estrategia de biofertilización? Un enfoque de ingeniería de biosistemas 

      Umaña Carmona, Steven; Rodríguez Mora, Karina María; Rojas Alvarado, Carlos Alonso (2017-06-29)
      El uso de microorganismos en aplicaciones ingenieriles, en particular desde un contexto de ingeniería de biosistemas tropicales, es útil para comprender el efecto de variables que determinan la dinámica microbiológica ...
    • Mosses as spore traps for myxomycetes 

      Stephenson, Steven L.; Rojas Alvarado, Carlos Alonso (2020-07-06)
      Small-mesh nylon bags filled with autoclaved samples of mosses were placed out in the field in northwest Arkansas and central Costa Rica to assess the extent to which mosses could serve as spore traps for myxomycetes. The ...
    • Myxomycetes collected in the eastern United States and patterns of relative biodiversity 

      Stephenson, Steven L.; Stauffacher, Richard; Rojas Alvarado, Carlos Alonso (2020-01-05)
      A total of 68 315 digitised records of myxomycetes from the eastern United States were compiled from all readily available sources. After cleaning the database for inconsistencies, 58 594 records remained that were ...
    • New records of genera and species of myxomycetes (Amoebozoa) from the Neotropics 

      Lado Rodríguez, Carlos; Estrada Torres, Arturo; Rojas Alvarado, Carlos Alonso (2018-05-11)
      During feld surveys of myxomycetes in Central America, 2 previously unrecorded genera and 4 species, viz. Craterium muscorum Ing, Dictydiaethalium dictyosporum Nann.-Bremek., Physarina echinocephala Höhn, and Stemonaria rufpes, ...
    • Proceedings of the ICSEM10 Costa Rica 

      Rojas Alvarado, Carlos Alonso (2020-02-28)
      Este documento corresponde con la memoria completa del X Congreso Internacional sobre Sistemática y Ecología de Mixomicetes (ICSEM10) celebrado en la Sede del Atlántico de la Universidad de Costa Rica entre el 25 y el 28 ...
    • Rapid assessment of the distribution of myxomycetes in a southwestern Amazon forest 

      Rojas Alvarado, Carlos Alonso; Stephenson, Steven L. (2012-07-02)
      The distribution of fruit bodies of myxomycetes under different ecological conditions at the Los Amigos Biological Station in southeastern Peru was studied. Six study areas were surveyed using a combined field-laboratory ...
    • 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 ...
    • What can myxomycetes tell us about floricolous microbial systems? 

      Rojas Alvarado, Carlos Alonso; Valverde González, Randall; Rollins, Adam W.; Murillo Roos, Mariana (2017-02)
      The study described herein was conducted in Costa Rica in an effort to generate baseline data on the association between tropical inflorescences and a group of microorganisms known as myxomycetes. The assemblage structure ...