Nectar provision attracts hummingbirds and connects interaction networks across habitats

Ramírez-Burbano, Mónica B.; Amorim, Felipe W.; Torres-González, Alba Marina; Sonne, Jesper; Maruyama, Pietro Kiyoshi

doi:10.1111/ibi.12988

Cited by 8 publications

(6 citation statements)

References 53 publications

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“…For some species, the installation of feeders in undisturbed habitats is likely to attract additional individuals from a distance, diverting them away from areas they would naturally inhabit (Arizmendi et al 2007). Some hummingbird species are opportunistic rather than specialists, so they exhibit adaptability to disturbed areas (e.g., Ramírez-Burbano et al 2022). Several researchers (Savard et al 2000;Arizmendi et al 2008;Fuller et al 2008) suggest that the use of artificial feeders can influence species distributions, potentially leading to increased richness and/or species displacement.…”

Section: Resultsmentioning

confidence: 99%

Potential effects of artificial feeders on hummingbirds-plant interactions: are generalizations yet possible?

Echeverry-Galvis,

Téllez-Colmenares,

Ramírez-Uribe

et al. 2024

Ornitol. Colomb.

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La influencia humana en los ecosistemas y las interacciones entre especies han sido observadas en variados estudios ornitológicos. Este fenómeno es evidente en áreas donde se proveen alimentos a diferentes comunidades de fauna, como en los comederos de colibríes. Esta suplementación artificial de recursos plantea preguntas sobre su impacto en aspectos como la polinización, visitas florales y movilidad de los colibríes. A partir de una revisión sistemática de literatura se realizó la identificación de los posibles cambios y/o efectos que la presencia de bebederos artificiales podría tener sobre la relación polinizador-planta. Se identificaron 26 artículos que mencionan temas sobre bebederos y su rol en la interacción planta-animal, catalogando los posibles impactos como positivos, negativos o neutros (sin impacto). Se encontró una baja producción científica sobre el tema, donde no fue posible determinar si hay un impacto claro a causa de los bebederos. Adicionalmente, varios investigadores afirman que algunos de los efectos e interacciones de los bebederos en la relación planta-animal podrían estar asociados a un efecto especie-específico, por lo que las generalizaciones son inadecuadas. La literatura de soporte es insuficiente y no concluyente, resaltando la necesidad de estudios rigurosos para evaluar cómo los comederos pueden afectar la biología reproductiva, la distribución espacial y los procesos ecosistémicos de los colibríes a diferentes escalas y aspectos como la biología reproductiva, la distribución espacial de los colibríes y sobre la modificación de procesos ecosistémicos. Complementariamente, se hizo una búsqueda por Google® para identificar páginas de difusión masiva que den información al público en general; de los resultados se tomaron las 40 primeras páginas y sobre ellas se indagó con relación a las fuentes que sustentaban la información planteada, encontrando un vacío de fuentes verificables, como artículos científicos. Consideramos fundamental impulsar la idea de que la divulgación de información de dominio público debe de ser en mayor medida sustentada por datos y estudios ornitológicos concretos.

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Section: Resultsmentioning

confidence: 99%

Potential effects of artificial feeders on hummingbirds-plant interactions: are generalizations yet possible?

Echeverry-Galvis,

Téllez-Colmenares,

Ramírez-Uribe

et al. 2024

Ornitol. Colomb.

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“…Moreover, available resources within patches also play a role in determining movement. For example, food resources in human‐disturbed areas may increase connectivity (Ramírez‐Burbano et al 2022), but transformed landscapes do not favour all species equally (Puga‐Caballero et al 2020) and new plant‐pollinator interactions emerge (Marín‐Gómez et al 2022). Our analyses showed that hummingbird seasonality was lower in transformed landscapes compared to natural ecosystems.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, we investigated differences in hummingbird seasonality between ecosystems by testing if natural ecosystem types exhibited greater changes in hummingbird occurrence in comparison to transformed landscapes; and whether humidity, altitude or vegetation type are ecosystem characteristics that influence seasonality. We anticipated that greater changes in hummingbird occurrence would appear in natural ecosystems because urban areas and croplands may provide nectar continuously through bird feeders and ornamental plants (Ramírez‐Burbano et al 2022). Also, humidity, altitude and vegetation type should all affect patterns of plant flowering and in turn predict hummingbird seasonality in different ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Citizen science data reveal altitudinal movement and seasonal ecosystem use by hummingbirds in the Andes Mountains

Rueda‐Uribe,

Herrera‐Alsina,

Lancaster

et al. 2023

Ecography

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Ensuring connectivity is crucial to protect landscapes but it requires knowledge about how animals use ecosystems throughout the year. However, animal movements remain largely unknown in biodiversity hotspots, even for species that fulfill key ecological roles, as is the case of hummingbirds in the Andes. In the complex topography of mountain slopes, movement of these avian pollinators may occur either between habitat patches with asynchronous plant blooms or across ecosystems that are located within the same elevation bands or along altitudinal gradients. Here, we used two decades (2000–2020) of records from citizen science data and boosted regression trees to predict monthly distributions for 55 hummingbird species in the Andes. We identified shifts in altitudinal distribution between contiguous months and calculated changes in the proportion of predicted distributions occupied by ecosystem types. Our findings reveal substantial altitudinal movement and differences in the proportion of ecosystem types utilized throughout the year that had not been previously reported for several species. Yet the magnitude of altitudinal and ecosystem shifts varies between hummingbird clades, and in some cases changes in the proportion of ecosystem types within estimated distributions occurs with little variation in altitude. All ecosystems across the Andes show temporal changes in hummingbird occurrence, but these are higher in natural landscapes compared to croplands or urban areas. Finally, we used phylogenetic logistic regression to test whether altitudinal and ecosystem shifts affect population trends. We found that higher ecosystem seasonality is more strongly associated with decreasing populations in comparison to altitudinal shifts. Altogether, our study reveals complex patterns of movement in hummingbirds and highlights the importance of ecological connectivity across different ecosystem types. More generally, it demonstrates the opportunity of using citizen science data to increase understanding about species' seasonal occurrences, so that landscapes can be better managed to protect animal movement.Keywords: boosted regression trees, eBird, ecological connectivity, species distribution models

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“…Whereas our study system of artificial feeders allowed us to collect behavioral data rapidly, copiously, and efficiently, these behaviors might not necessarily be extrapolated to natural foraging settings. Firstly, the community observed at these artificial feeders is not completely representative of the local natural community (Ramírez‐Burbano et al., 2022). Regarding our focal taxa, there were several hummingbirds observed in the area that did not attend the artificial feeders.…”

Section: Discussionmentioning

confidence: 99%

Phenotype predicts interspecific dominance hierarchies in a cloud‐forest hummingbird guild

Fernandez‐Duque,

Miller,

Fernandez‐Duque

et al. 2023

Ethology

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Competition over resources often leads to intra‐ and interspecific interactions, which can be detrimental to the individuals involved. Thus, natural selection should favor communication systems that reliably convey information regarding the relative competitive abilities of an individual, reducing the need for physically damaging confrontation. Body size, sex, age, relatedness, and ornamentation are important factors determining dominance across diverse taxa in intraspecific interactions. These traits, when perceptible, may serve as signals across species in guilds that have frequent interspecific interactions. Hummingbirds provide a tractable system to study such community dynamics due to their high frequency of interactions, variable ornamentation, diverse body sizes, fast metabolism, and large overlap in resource utilization. Even in this system, potential interactions between morphology and coloration are rarely accounted for together when analyzing dominance between species. We take a novel approach to understanding interspecific dominance by assessing behavior, morphology, and coloration across different types of behavioral interactions. Across 11 tropical montane hummingbird species, we find that dominance is predicted by wing size and some metrics of plumage coloration. However, the biological significance of these factors varies between the different dominance behaviors performed. These results inform our understanding of interspecific signaling and its role in the evolution of intraguild communication and resource competition.

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Nectar provision attracts hummingbirds and connects interaction networks across habitats

Cited by 8 publications

References 53 publications

Potential effects of artificial feeders on hummingbirds-plant interactions: are generalizations yet possible?

Potential effects of artificial feeders on hummingbirds-plant interactions: are generalizations yet possible?

Citizen science data reveal altitudinal movement and seasonal ecosystem use by hummingbirds in the Andes Mountains

Phenotype predicts interspecific dominance hierarchies in a cloud‐forest hummingbird guild

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