Browsing Biología by Title
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Factors affecting phenological patterns of bombacaceous trees in seasonal forests in Costa Rica and Mexico
(2003)We compared phenological patterns of tree species of the family Bombacaceae in three seasonal forests in Mexico and Costa Rica whose dry seasons vary in duration and intensity. The objectives were to (1) determine intraspecific ... -
Fallen Branches as Part of Leaf-Cutting Ant Trails: Their Role in Resource Discovery and Leaf Transport Rates in Atta cephalotes
(2007)Fallen branches, logs, and exposed roots (fallen branches hereafter) commonly form part of the trunk trail system of leaf-cutting ants that inhabit the tropical rain forest. We studied the role of fallen branches on resource ... -
La familia Bombacaceae (Malvales) en Costa Rica
(1997)General descriptions and taxonomic keys to the nine genera (Bernoullia, Ceiba, Huberodendron, Matisia, Ochroma, Pachira, Pseudobombax, Quararibea, and Spirotheca) and twenty-four species of Bombacaceae species known to ... -
Feeding by Philoponella vicina (Araneae, Uloboridae) and how uloborid spiders lost their venom glands
(2006)Feeding by uloborid spiders is unusual in several respects: cheliceral venom glands are absent; prey wrapping is extensive (up to several hundred metres of silk line) and severely compresses the prey; the spider’s mouthparts ... -
Feeding effectiveness of Megaphobema mesomelas (Araneae, Theraphosidae) on two prey types
(2012)Prey selection is essential for individual fitness; therefore, it would be expected that a predator would select prey of a higher rank (energy/time) when exposed to prey of differing quality. In this paper, we compare the ... -
Feeding habits of the Pacific bearded brotula Brotula clarkae Hubbs, 1944 (Ophidiidae) along the Pacific coast of Costa Rica, Central America
(2016)The present study analyzed the diet composition, ontogenetic shifts and dietary overlap of Brotula clarkae in relation to stage of maturity and sex. Samples were collected from the trawling fishery along the Pacific coast ... -
Fenología de especies de árboles de la Península de Osa y la región de Golfo Dulce, Costa Rica
(2007)Se presentan datos sobre fenología de hojas, flores y frutos de 74 especies de árboles de la Península de Osa y Golfo Dulce, al Sureste de Costa Rica. Los datos fueron obtenidos de observaciones directas de árboles no ... -
Fern Distortion Syndrome of Leatherleaf Fern in Costa Rica: Symptoms, Incidence, and Severity
(Plant Disease, vol. 94, n. 8, 2010, 2010)A syndrome has been recognized on leatherleaf fern (Rumohra adiantiformis) in Costa Rica for many years that causes widespread damage but has not been described in the literature. A full description of the syndrome, termed ... -
Filogenia de los grupos de especies de Holopothrips y grupos cercanos (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 ... -
Filogenia en base a caracteres morfológicos del género Camisia von Heyden (Acari: Oribatida): un estudio de la importancia de los caracteres en la determinación de grupos naturales
(2014-04)Se presenta un análisis filogenético de las especies del género Camisia y se incluyen cinco de los géneros habitualmente considerados dentro de la familia Camisiidae. La filogenia indica que hay dos linajes claramente ... -
First Breeding Record of Wilson’s Plover (Charadrius wilsonia) from the Pacific Coast of Colombia
(2004)Wilson’s Plover (Charadrius wilsonia) occurs year-round along the Caribbean and Pacific coasts of Colombia. The species frequents a variety of coastal habitats including sandy beaches, tidal flats, and small swamps and ... -
First description of the nest and eggs of the Sooty-faced Finch
(1994)Sooty-faced Finches (Lysurus crassirostris) occur in dense undergrowth of wet forests that border streams along the Caribbean slope of Costa Rica between 600 to 1500 m in altitude. Its distribution is from Cordillera de ... -
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 ... -
First record of the Greenhouse frog, Eleutherodactylus planirostris (Anura: Eleutherodactylidae), in Costa Rica
(2016)Introduced species can have a negative impact on native species, so that detection of new arrivals is fundamental to avoid establishment of breeding populations. Several species of frogs and lizards have been introduced ... -
First record of the sea anemone Anthopleura mariscali outside the Galápagos Archipelago
(2017-03)The sea anemone Anthopleura mariscali Daly and Fautin 2004 is described as an endemic species of the Galápagos Archipelago. Its authors suggested that it may have been overlooked elsewhere because of its small size ... -
First record of the sea anemone Bunodosoma californicum (Cnidaria: Actiniaria) on the Pacific coast of Costa Rica
(2015-05)We report the first record of the sea anemone Bunodosoma californicum on the Pacific coast of Costa Rica, extending its southern distribution. Four specimens were collected from an artificial breakwater in Mata de Limón, ...