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Mostrando ítems 981-990 de 1644
The biogeographic and evolutionary history of an endemic clade of Middle American sparrows: Melozone and Aimophila (Aves: Passerellidae)
(2017)
The large number of endemic species in Middle America is frequently attributed to the interplay of geographical barriers and historical climatic changes in the region. This process promotes genetic divergence between ...
Hub thread removal behaviour in the orb weaver Leucauge mariana (Araneae: Tetragnathidae)
(2020-11-05)
Many orb-weaving spiders break the central lines of the hub at the end of web construction. Nevertheless, very little is known of how spiders break these lines and whether this behaviour differs among taxa. Here, we describe ...
A new genus and species of gall-inducing thrips (Thysanoptera: Tubulifera) from the neotropical region
(BRENESIA 2008 No. 69, 2008)
A new genus of gall-inducing thrips is described for Costa Rica. This taxon seems to be close to Plagiothrips, and can be distinguished by several morphological features, where the most relevant is the presence of an ...
Origen, historia natural y usos de las plantas introducidas en Costa Rica
(2020)
RESUMEN. Introducción: Algunas especies de plantas introducidas cambiaron la historia de Costa Rica desde el siglo XVI. Muchas se convirtieron en los cultivos socioeconómica y ambientalmente más impactantes de este país; ...
Etnobotánica con rigor científico
(2006)
Se comenta de modo crítico la segunda edición de la obra "Farmacopea Vegetal Caribeña" (L. Germosén-Gobineau - ed. cient., 2005, UNAN, Nicaragua), así como el significado del término etnobotánica y su trascendencia en el ...
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 ...
IVF in Costa Rica
(2017)
For 16 years, Costa Rica was the only country in the world that banned IVF, after it had been successfully conducted from 1995 to 2000. It also has been the only country that banned IVF based on the argument that it protects ...
Generic recircumscriptions of Oncidiinae (Orchidaceae: Cymbidieae) based on maximum likelihood analysis of combined DNA datasets
(2012)
Phylogenetic relationships within the orchid subtribe Oncidiinae sensu Chase were inferred using maximum
likelihood analyses of single and multilocus DNA sequence data sets. Analyses included both nuclear ribosomal internal ...
Matambú y Matambuguito, buenas noticias
(2013-06-26)
Se comenta la situación de la escasez de agua, y la seguridad alimentaria y nutricional, en el Territorio Indígena de Matambú.
Predators of the sea urchin Diadema mexicanum (Diadematoida: Diadematidae) at the Eastern Tropical Pacific coral reefs
Depredadores del erizo de mar Diadema mexicanum (Diadematoida: Diadematidae) en los arrecifes de coral del Pacífico Tropical Oriental
(2024)
Introduction: The coral reefs of Isla del Coco National Park are some of the most pristine ecosystems on Earth.
The sea urchin Diadema mexicanum (Diadematoida: Diadematidae) is a common inhabitant with a pivotal role
in ...