Now showing items 1-10 of 998
DNA-assisted identification of Caulerpa (Caulerpaceae, Chlorophyta) reduces species richness estimates for the Eastern Tropical Pacific
Taxonomy and species richness estimates for the genus Caulerpa have proven challenging due to the difficulty of assessing morphological species limits. In the present study we evaluate the taxonomy of the genus and assess ...
The authors presents 77 species new to science, distributed from Mexico, through Central and South America, as far as Argentina. They are distributed in Colombia (33), Peru (27), Ecuador (15), Costa Rica (5), Brazil (3), ...
Substrate vibrations in the scorpion Centruroides margaritatus (Scorpiones: Buthidae) during courtship
(Rev. Biol. Trop. (Int. J. Trop. Biol. ISSN-0034-7744) Vol. 57 (Suppl. 1): 267-274, November 2009, 2009-11)
Mating behavior in Centruroides margaritatus, as in other scorpion species, includes a series of rapid rocking or shaking movements of the male (“juddering”). It has been suggested that substrate vibrations are generated ...
A time- and cost-effective strategy to sequence mammalian Y Chromosomes: an application to the de novo assembly of gorilla Y
The mammalian Y Chromosome sequence, critical for studying male fertility and dispersal, is enriched in repeats and palindromes, and thus, is the most difficult component of the genome to assemble. Previously, expensive ...
Phenology of myxomycetes in Turrialba, Costa Rica
Long-term monitoring and phenological patterns of microbial communities are rare in the scientific literature. Myxomycetes have life cycle characteristics that allow both to be documented. The present study summarizes ...
Detritus camouflage in webs of Helvibis longicauda (Araneae: Theridiidae)
Adult females of Helvibis longicauda accumulated tiny pieces of vegetation in the mesh of their webs. The amount of debris accumulated was much greater in webs of spiders with either egg sacs, spiderlings or juveniles than ...
Sobre el holotipo de Kefersteinia retanae (Orchidaceae)
Se aportan los datos necesarios para validar la publicación del nombre orquidáceo Kefersteinia retanae por G. Gerlach en 1994.
An Insect Herbivore Microbiome with High Plant Biomass-Degrading Capacity
(PLoS Genetics. September 2010. Volume 6, Issue 9. e1001129, 2010-09)
Herbivores can gain indirect access to recalcitrant carbon present in plant cell walls through symbiotic associations with lignocellulolytic microbes. A paradigmatic example is the leaf-cutter ant (Tribe: Attini), which ...
Tolerance and sorption of Bromacil and Paraquat by thermophilic cyanobacteria Leptolyngbya 7M from Costa Rican thermal springs
We studied the adsorption ability and tolerance of the thermophilic filamentous cyanobacteria Letolyngbya 7M towards Paraquat and Bromacil. Adsorption isotherms at pH = 7.0 showed an adsorption capacity of 24.4 mg/g and ...
A new Specklinia (Orchidaceae: Pleurothallidinae) from Costa Rica and Panama
A new species of Specklinia from the Cordillera de Talamanca in southern Costa Rica and western Panama is described and illustrated. Specklinia absurda most closely resembles Specklinia fuegi. It differs from that species ...