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Diversidad de Cicadélidos y Clastoptéridos (Hemiptera) en Tres Zonas Productoras de Café Afectadas por Xylella fastidiosa Wells et al. en Costa Rica
Hemipteran Diversity (Cicadellidae and Clastopteridae) in Three Coffee Production Zones Affected by Xylella fastidiosa (Wells et al.) in Costa Rica
(2008-07)
Se realizó un estudio durante los años 2002, 2003 y 2004, con el fin de determinar la composición, la abundancia, riqueza, diversidad, equidad, ocurrencia y fluctuación temporal de las especies de saltahojas en tres zonas ...
Filogenia de los grupos de especies de Holopothrips y grupos cercanos (Phlaeothripidae: Tubulifera: Thysanoptera)
Phylogeny of groups of species of Holopothrips and nearby groups (Phlaeothripidae: Tubulifera: Thysanoptera)
(2016)
En este trabajo se exponen los resultados de un análisis formal de filogenia efectuado con una matriz de 25 caracteres morfológicos y 38 taxa. La resolución no permite ubicar los parentescos de todas las especies de forma ...
Inventory of macroalgal epiphytes on the seagrass Thalassia testudinum (Hydrocharitaceae) in Parque Nacional Cahuita, Caribbean coast of Costa Rica
(2008)
Seagrass epiphytes play an important role in seagrass habitats; however, available information from Central America is scarce. The present study focuses on macroalgal epiphytes on leaves of the seagrass Thalassia testudinum ...
Responses of aquatic macroinvertebrates to human pressure in a tropical highland volcanic basin: Birrís River, Irazú Volcano (Costa Rica)
Respuestas macroinvertebrados acuáticos a la presión humana en una cuenca tropical volcánica alta: Río Birrís, Volcán Irazú (Costa Rica)
(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 ...
Studies on Costa Rican Vanilloideae: The return of Cleistes rosea and a reaffirmation of Epistephium ellipticum
(2023-12-29)
Subfamily Vanilloideae represents a small fraction of the orchid flora of Costa Rica, and yet our knowledge of this predominantly South American group has significantly increased in the last two decades. Until recently, ...
The contrasting roles of aquatic fungi and oomycetes in the degradation and transformation of polymeric organic matter
(2019)
Studies on the ecological role of fungi and, to a lesser extent, oomycetes, are receiving increasing attention, mainly due to their participation in the cycling of organic matter in aquatic ecosystems. To unravel their ...
Ontogeny repeats phylogeny in Steatoda and Latrodectus spiders
(2010)
Web designs of young spiders are often less derived than those of older conspecific individuals. This study tested whether this ‘‘ontogeny repeats phylogeny’’ pattern occurs in two species of Latrodectus and two species ...
Viscid globules in webs of the spider achaearanea tesselata (araneae: theridiidae)
(2006)
We describe the presence and dimensions of viscid globules in both the sheet and tangle portions of the webs of Achaearanea tesselata (Keyserling 1884). We found viscid globules in all sheets and tangles of the webs examined. ...
First Record of the Family Potamocoridae (Hemiptera: Heteroptera) in Costa Rica and of Coleopterocoris Hungerford, 1942 in Central America
(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 ...
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
(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, ...