Biología
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Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific
(2018)Seagrass meadows are declining worldwide, mostly attributed to anthropogenic disturbances. Understanding the dynamics of these meadows is urgent in order to establish adequate management and conservation strategies. Here, ... -
Ecología trófica de la trucha arcoíris Oncorhynchus mykiss (Salmonidae) en el Río Savegre, San Gerardo de Dota, Costa Rica
(2016)Los estudios de ecología trófica son fundamentales para el entendimiento del rol que un organismo tiene en la red alimenticia y en el flujo de energía del ecosistema. La trucha arcoíris es un pez depredador introducido en ... -
Gestión Integrada Marina y Costera en Costa Rica
(2020)Considerado como el primer país en vías de desarrollo en contar con un programa de Gestión Costera Integrada, Costa Rica es un país pequeño con dos costas que inalienablemente debe manejar sus recursos marino-costeros de ... -
Synchronized sexual reproduction of the seagrass Syringodium filiforme (Cymodoceaceae) in a tropical reef lagoon on the Caribbean coast of Costa Rica
(2020)There has been an increasing effort to understand the mechanisms of sexual reproduction in seagrasses, which is usually synchronized. Synchronization is caused by environmental cues, such as temperature and light availability, ... -
Patrones de co-ocurrencia, elección de hábitat y comunicación heteroespecífica dentro de bandadas mixtas de aves
(2022-07-27)Las bandadas mixtas son uno de los sistemas más extendidos e interactivamente dinámicos en la Tierra, pero los factores que median su cohesión aún no se comprenden del todo. Su estudio a través de un enfoque evolutivo ... -
Removal of N-nitrosodimethylamine precursors by cation exchange resin: The effects of pH and calcium
(2018-11-01)Cation exchange resins have proved to be efficient in removing precursors of N-nitrosodimethylamine (NDMA). NDMA is a probable human carcinogen with a calculated lifetime cancer risk of 10−6 at 0.7 ng/L in drinking water. ... -
Plant galls recorded from Guanacaste Conservation Area-Costa Rica as an integrated concept of a biological database
(2021-07)Galling insects are specialist herbivorous that have the ability of manipulating plant tissue to form complex biological structures called galls. Even though different organisms have the ability to induce galls in plants, ... -
The genomic basis of army ant chemosensory adaptations
(2021-09)The evolution of mass raiding has allowed army ants to become dominant arthropod predators in the tropics. Although a century of research has led to many discoveries about behavioural, morphological and physiological ... -
Burkholderia from fungus gardens of fungus-growing ants produce antifungals that inhibit the specialized parasite Escovopsis.
(2021-06)Within animal-associated microbiomes, the functional roles of specific microbial taxa are often uncharacterized. Here, we use the fungus-growing ant system, a model for microbial symbiosis, to determine the potential ... -
Genotyping and differential bacterial inhibition of Batrachochytrium dendrobatidis in threatened amphibians in Costa Rica
(2021-02-02)Amphibians have declined around the world in recent years, in parallel with the emergence of an epidermal disease called chytridiomycosis, caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd). This disease has ... -
Bacteria contribute to plant secondary compound degradation in a generalist herbivore system.
(2020)Herbivores must overcome a variety of plant defenses, including coping with plant secondary compounds (PSCs). To help detoxify these defensive chemicals, several insect herbivores are known to harbor gut microbiota with ... -
Pollen Streptomyces Produce Antibiotic That Inhibits the Honey Bee Pathogen Paenibacillus larvae
(2021)Humans use natural products to treat disease; similarly, some insects use natural products produced by Actinobacteria to combat infectious pathogens. Honey bees, Apis mellifera, are ecologically and economically important ... -
Diversity of deep-sea echinoderms from Costa Rica
(2022-07-31)Echinoderms are a highly diverse group and one of the most conspicuous in the deep sea, playing ecological key roles. We present a review about the history of expeditions and studies on deep-sea echinoderms in Costa Rica, ... -
Habitat adaptation drives speciation of a Streptomyces species with distinct habitats and disparate geographic origins
(2022-01-11)Microbial diversification is driven by geographic and ecological factors, but how the relative importance of these factors varies among species, geographic scales, and habitats remains unclear. Streptomyces, a genus of ... -
The roles of growth regulation and appendage patterning genes in the morphogenesis of treehopper pronota.
(2022-06)Treehoppers of the insect family Membracidae have evolved enlarged and elaborate pronotal structures, which is hypothesized to involve co-opted expression of genes that are shared with the wings. Here, we investigate the ... -
A New Masdevallia (Pleurothallidinae: Orchidaceae) from the White-Sand Forests of the Central Amazon, Brazil
(2022-03-21)Masdevallia britoi, a new species in Masdevallia sect. Minutae, is described and illustrated from the central Amazon in Brazil. It is similar to M. wendlaniana but differs by shorter sepals that are internally white, shorter ... -
A new species and a new record of Malaxis (Malaxidinae) from Costa Rica
(2022-04-25)We describe and illustrate a new species and a new record of Malaxis from the lower montane and montane forests of Costa Rica. Taxonomic descriptions, illustrations, distribution maps, and conservation assessments are ... -
Micromorfología de los foliolos de pejibaye Bactris gasipaes (Arecaceae) var. Diamantes-10
(2016-07-01)Bactris gasipaes se cultiva ampliamente para el aprovechamiento del palmito y el consumo de los frutos En este trabajo se realizó una descripción de las características micro morfológicas de los foliolos de plantas ... -
Bosques de coral negro del Área de Conservación Guanacaste, Costa Rica: especies y distribución
(2021-09-06)Introduction: Little is known about the antipatharians in Costa Rica, only three species are known from the Pacific and the occurrence of coral forests was previously reported only for Isla del Coco. Black ... -
Distribución del pez sierra de dientes grandes (Pristis pristis) en Costa Rica: reconstrucción histórica y actual mediante métodos tradicionales y ADN ambiental
(2021)The Critically Endangered largetooth sawfish Pristis pristis is one of the most threatened elasmobranch species and is currently thought to be locally extinct in at least 27 countries. Although largetooth sawfish information ...
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