Browsing Biología by Title
Now showing items 1044-1063 of 1578
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Obituary: William Mark Whitten (1954−2019)
(2019)On April 11, 2019, Dr. William Mark Whitten, a prolific neotropical orchid biologist passed away unexpectedly. He leaves an extensive corpus of work focused on (but not limited to) orchid pollination and systematics, ... -
Observaciones de la biología reproductiva de varias especies de aves del Pie de Monte Pacífico en Guatemala
(2020)La biología reproductiva de las aves es uno de los factores clave para generar acciones de conservación efectiva en muchas especies, debido a que es donde se reclutan nuevos individuos a las poblaciones. Sin embargo, para ... -
Observaciones ornitológicas en la Isla del Coco y sus aguas oceánicas, Costa Rica (julio y setiembre, 2020)
(2023)La avifauna de la Isla del Coco es compleja en su distribución y presencia. Las expediciones de ecoturismo con fines de observación de aves contribuyen a comprender y ampliar el conocimiento, comportamiento, historia natural ... -
Observaciones sobre la larva del cangrejo marino tropical (Decapoda: Porcellanidae) Petrolisthes armatus en el Golfo de Nicoya, Costa Rica
(2008-09)Durante octubre y noviembre de 1998 (estación lluviosa) y diciembre, febrero y marzo de 1999 (estación seca) se muestreó la distribución de la larva de Petrolisthes spp, así como la densidad del total de las larvas de ... -
Observación de aves oceánicas en el Océano Pacífico costarricense y en el Área de Conservación Marina Coco
(2023-07)Las aves oceánicas o pelágicas son aquellas que están adaptada al océano abierto y pasan la mayor parte de su vida lejos de la tierra (Harrison et al. 2021), aunque pueden reportarse en ecosistemas costeros de forma ... -
Observations at a Yellow-eared Toucanet (Selenidera spectabilis) nest
(2018)What little we know of the breeding biology of Selenidera toucanets comes from only two of the eight species. For most species the breeding season is approximated through indirect evidence (e.g., gonad size in collected ... -
Observations on the breeding behaviour of Snowy Cotinga
(2016)Tres nidos de la Cotinga Nivosa Carpodectes nitidus muestran un diseño muy simple, que consiste en una plataforma construida de ramitas y zarcillos, similar al descrito previamente para esta especie y para otras cotingas. ... -
Observations on the ultrastructure and hydrophobicity of the wings of thirteen Neotropical families of diptera (insecta) with comments on their flight
(2015-11)Insects' wings are complex surfaces that have become a new field to study towards the design of flying devices and hydrophobic surfaces. Several orders and families of insects have been analyzed for their hydrophobic ... -
Occurrence of pharmaceuticals, hazard assessment and ecotoxicological evaluation of wastewater treatment plants in Costa Rica
(2020)The continuous release of pharmaceuticals from WWTP effluents to freshwater is a matter of concern, due to their potential effects on non-target organisms. The occurrence of pharmaceuticals in WWTPs and their associated ... -
On Maxillaria bomboizensis and Camaridium carinatum (Orchidaceae)
(2007-06-01)Maxillaria bomboizensis is synonymized under Camaridium carinatum. Two previously published combinations based on Maxillaria bomboizensis (Camaridium bomboizense and Sauvetrea bomboizensis) are invalid. A complete synonymy ... -
On the Identity of Trichocentrum orthoplectron (Orchidaceae: Oncidiinae), with a new species from Bolivia
(2018)The species traditionally included under the synonymy of Trichocentrum albococcineum are re-evaluated, and T. orthoplectron is reinstated as a separate species. A new species of Trichocentrum from Bolivia, T. moreniorum, ... -
On the meaning of Cypripedium × grande (Orchidaceae) and its taxonomic history, with a new name for the nothospecies occurring in Costa Rica and Panama
(2018-12-11)The taxonomic history of Phragmipedium × grande is traced to show that its current treatment as the cross between P. longifolium and P. humboldtii is untenable. According to our interpretation of the holotype and other ... -
On the status of the genus Hybochilus, with a new combination in Leochilus (Orchidaceae: Oncidiinae)
(2021)The name Rodriguezia inconspicua, proposed as a replacement name for Trichocentrum candidum, is a homotypic synonym of the latter, as well as the new combinations based on the same name. The genus Hybochilus, typified by ... -
On the types of Maxillaria grandiflora and Heterotaxis valenzuelana (Orchidaceae: Maxillariinae)
(2011-12)The type specimen of Maxillaria grandiflora (Kunth) Lindl. was collected by Alexander von Humboldt and Aimé Bonpland during their scientific expedition to Tropical America. Its type locality, which has been the subject of ... -
Oncidium Sw. [with a new species, Oncidium coquianum]
(2022-02)Costa Rican species of Oncidium are presented and discussed. A new species, Oncidium coquianum Pupulin & Dalström, is described and illustrated. -
Ontogenetic changes in web architecture and growth rate of Tengella radiata(Araneae, Tengellidae)
(2008)In some spiders features of the webs of early instars may represent features of the ancestor's web. Some second instar spiderlings (first instar outside of the egg sac) of Tengella radiata (Kulczynski 1909) construct a ... -
Ontogeny of an interactive call-and-response system in Spix's disc-winged bats
(2020)We investigated the ontogenetic changes of two call types, the inquiry call and the response call, which comprise an interactive communication system in Spix's disc-winged bats, Thyroptera tricolor. We documented structural ... -
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 ... -
Optimization of a Fungally Bioaugmented Biomixture for Carbofuran Removal in On-Farm Biopurification Systems
(2016)Biomixtures comprise the active part of biopurification systems (BPS) for the removal of pesticide-containing wastewater from agricultural origin. Considering that biomixtures contain an important amount of lignocellulosic ...