Results: 44

Ant Communities (Hymenoptera: Formicidae) in a Protected Urban Park in Northeast Mexico

Rev. biol. trop; 72 (1), 2024
Abstract Introduction: The creation of protected natural areas within urban environments has played an essential role in providing small reservoirs of native vegetation and refuges for endemic species. However, knowledge of how land management and landscape design can influence the different community ...

Integridad biótica de la Laguna del Mar Muerto, México, basada en peces

Rev. biol. trop; 72 (1), 2024
Resumen Introducción: La laguna Mar Muerto es un ecosistema caracterizado por una gran productividad, de la cual dependen diversos organismos que la habitan; también es un sistema susceptible a impactos ambientales. Por lo anterior, se han desarrollado índices que permiten conocer el grado de altera...

Invertebrados (Echinodermata, Brachiopoda, Bryozoa, Cnidaria, Porifera) del Carbonífero de Sierra Santa Teresa, Sonora, México: Consideraciones paleoecológicas y paleogeográficas

Rev. biol. trop; 72 (supl.1), 2024
Resumen Introducción: La Sierra Santa Teresa se encuentra a 20 km al sureste de Hermosillo en la región central del estado de Sonora, México. Los estratos sedimentarios corresponden principalmente a textura de piedra caliza, mudstone, wackestone y packstone del Paleozoico superior. La biota está re...

Efecto de la cobertura vegetal en escarabajos coprófagos (Coleoptera: Scarabaeinae) y sus funciones ecológicas en un bosque andino de Colombia

Rev. biol. trop; 70 (1), 2022
Resumen Introducción: Los escarabajos coprófagos cumplen funciones importantes en los ecosistemas terrestres, pero las presiones antrópicas los afectan negativamente. Estos efectos están bien documentados en los bosques neotropicales de tierras bajas, pero se han estudiado poco en los bosques andinos...

Time partitioning among neotropical frugivorous bats: effects of phylogeny, body size, and abundance

Rev. biol. trop; 69 (4), 2021
Abstract Introduction: Resource partitioning by promoting coexistence is essential to determine species richness and composition in natural communities. However, the partitioning of time has been questioned as a mechanism that promotes the coexistence of ecologically similar species. Objective: To determ...

Antimicrobial activity of bacteria isolated from tissue of the coral Palythoa caribaeorum (Zoantharia: Sphenopidae) from Paraíba, Brazil coastal reefs

Rev. biol. trop; 69 (2), 2021
Abstract Introduction: The coral-associated bacteria with antimicrobial activity may be important to promote the health of their host through various interactions, and may be explored as a source of new bioactive compounds. Objective: To analyze the antimicrobial activity of bacteria associated with the ...

Biodiversidad de ofiuroideos (Echinodermata: Ophiuroidea) del talud de la Península de Yucatán, México

Rev. biol. trop; 69 (supl. 2), 2021
Introduction: The Ophiuroidea class is the most diverse of the Phylum Echinodermata, with 2 064 described species, which can be found from intertidal zones to abyssal depths, but the fauna of Yucatan peninsula needs more study. Objective: To describe the diversity of ophiuroids in the Yucatan continental...

Depredación masiva por Acanthaster planci en el arrecife El Corralito, golfo de California: amenaza a corto plazo

Rev. biol. trop; 69 (supl. 2), 2021
Introducción: Una de las amenazas actuales para los arrecifes de coral es la pérdida de cobertura de coral vivo. La depredación masiva asociada con los brotes poblaciones de la estrella corona de espinas, amenaza la permanencia de los arrecifes. Desde 2017, ha habido evidencia de un incremento en la d...

Taxonomic loss and functional reduction over time in the ichthyofauna of the Taquaruçu Reservoir, lower Paranapanema River, Southern Brazil

Neotrop. ichthyol; 19 (3), 2021
We evaluated the fish composition and ecological attributes of the ichthyofauna collected in a limnological zone of the Taquaruçu Reservoir, lower Paranapanema River. Information about the fish community was updated when compared to the previous study (2006). Non-metric multidimensional scaling (NMDS) s...

Biotic differentiation in headwater creeks after the massive introduction of non-native freshwater aquarium fish in the Paraíba do Sul River basin, Brazil

Neotrop. ichthyol; 19 (3), 2021
This study evaluated fish beta diversity in six headwater creeks located in the area affected by the largest ornamental aquaculture center implemented in the Minas Gerais State, southeastern Brazil. We sampled fish assemblages in 2017 and 2018 to investigate changes in assemblage structure (species richn...