Oscar Humberto Marín‐Gómez

Three new species of Columnea Gesneriaceae from the Colombian Andes

Marisol Amaya-Márquez, Larri Álvarez-Rodas, Yennifer Ramos Arias, Oscar Humberto Marín‐Gómez

We describe and illustrate three new species of Columnea (Gesneriaceae) from the Colombian Andes: C. cogolloi from Department of Antioquia, collected at altitudes between 3000 and 3400 m in the high Andean forests and Páramos (Western Cordillera), C. ianthina, endemic to the …

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Optimization of passive acoustic bird surveys: a global assessment of BirdNET settings

Cristian Pérez‐Granados, David Funosas, Jon Morant, Oscar Humberto Marín‐Gómez et autres

BirdNET is a popular machine learning tool for automated recognition of bird sounds. However, evidence on how to optimize its settings for accurate bird monitoring remains limited. Here, we evaluate how BirdNET settings influence model performance in identifying bird vocalizations and characterizing …

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Bird–window collisions: A comprehensive dataset for the Neotropical region

Augusto João Piratelli, Bianca Costa Ribeiro, Wesley Dáttilo, Luis‐Bernardo Vázquez et autres

Our primary objective was to compile a comprehensive dataset on bird-window collisions throughout the Neotropical region, including both published and unpublished sources. On May 12, 2020, we extensively disseminated invitations to provide data via email and social media platforms. By providing a …

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The role of insularity: Plants have few ornithophilous traits but are visited by morphologically more distinct hummingbirds in the Caribbean islands

R. D. Jensen, Pietro K. Maruyama, Matthias Schleuning, Francielle Paulina de Araújo et autres

Abstract Functional traits determine interactions between plants and pollinators, and to increase pollination efficiency, many plants have evolved traits to attract specific pollinator groups. However, biogeographical setting may influence trait evolution and biotic interactions. For instance, plants pollinated by hummingbirds often have …

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Urban environments increase generalization of hummingbird–plant networks across climate gradients

Pietro K. Maruyama, Camila Bosenbecker, João Custódio Fernandes Cardoso, Jesper Sonne et autres

Urbanization has reshaped the distribution of biodiversity on Earth, but we are only beginning to understand its effects on ecological communities. While urbanization may have homogenization effects strong enough to blur the large-scale patterns in interaction networks, urban community patterns may still …

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La voz de nuestras aves: contribuciones de la bioacústica a la ornitología colombiana

Ronald A. Fernández‐Gómez, Wiliam Ku-Peralta, Daniela Botero-Restrepo, Nelsy Niño-Rodríguez et autres

La bioacústica, o el estudio de los sonidos que producen los animales, es una herramienta que ha sido ampliamente usada en el estudio de las aves, con un incremento en el número de estudios que la aplican en las últimas décadas por …

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Network structure of avian mixed-species flocks decays with elevation and latitude across the Andes

Flavia Montaño‐Centellas, Jenny Muñoz, Giselle Mangini, Ian J. Ausprey et autres

Birds in mixed-species flocks benefit from greater foraging efficiency and reduced predation, but also face costs related to competition and activity matching. Because this cost-benefit trade-off is context-dependent (e.g. abiotic conditions and habitat quality), the structure of flocks is expected to vary …

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Assessing ecological interactions in urban areas using citizen science data: Insights from hummingbird–plant meta-networks in a tropical megacity

Oscar Humberto Marín‐Gómez, Claudia I. Rodríguez-Flores, Marı́a del Coro Arizmendi

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Behavioural and morphological traits influence sex‐specific floral resource use by hummingbirds

María A. Maglianesi, Pietro K. Maruyama, Ethan J. Temeles, Matthias Schleuning et autres

Research on resource partitioning in plant-pollinator mutualistic systems is mainly concentrated at the levels of species and communities, whereas differences between males and females are typically ignored. Nevertheless, pollinators often show large sexual differences in behaviour and morphology, which may lead to …

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Artificial Light at Night Drives Earlier Singing in a Neotropical Bird

Oscar Humberto Marín‐Gómez

Anthropogenic noise and artificial light at night (ALAN) can disrupt the morning singing routines of urban birds, however, its influence on tropical species remains poorly explored. Here, I assessed the association between light and noise pollution with the dawn chorus onset of …

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Inventario, adiciones y análisis biogeográfico de las aves de San José del Guaviare, Guaviare, Colombia

Orlando Acevedo‐Charry, Nadezhda Bonilla-S., Natalia Cano, Pedro A. Camargo et autres

El conocimiento de los patrones de diversidad y distribución de las aves colombianas ha incrementado notablemente en las últimas décadas. Sin embargo, aún existen vacíos de información para varias regiones del país. El municipio de San José del Guaviare está ubicado en …

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A Novel Approach for the Assessment of Cities through Ecosystem Integrity

Ian MacGregor‐Fors, Ina Falfán, Michelle García‐Arroyo, Richard Lemoine-Rodríguez et autres

To tackle urban heterogeneity and complexity, several indices have been proposed, commonly aiming to provide information for decision-makers. In this study, we propose a novel and customizable procedure for quantifying urban ecosystem integrity. Based on a citywide approach, we developed an easy-to-use …

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