Results 1 to 10 of about 16,645 (235)

Elevational and Seasonal Patterns of Plant–Hummingbird Interactions in a High Tropical Mountain [PDF]

open access: yesEcology and Evolution
Tropical mountain ecosystems harbor diverse biological communities, making them valuable models for exploring the factors that shape ecological interactions along environmental gradients.
Eugenia M. Sentíes‐Aguilar   +8 more
doaj   +2 more sources

Evaluation of minimally invasive sampling methods for detecting Avipoxvirus: Hummingbirds as a case example

open access: yesFrontiers in Veterinary Science, 2022
Avian pox is a common avian virus that in its cutaneous form can cause characteristic lesions on a bird's dermal surfaces. Detection of avian pox in free-ranging birds historically relied on observations of visual lesions and/or histopathology, both ...
Aoife N. Galvin   +10 more
doaj   +1 more source

Hummingbird ingestion of low-concentration ethanol within artificial nectar

open access: yesRoyal Society Open Science, 2023
Both frugivores and nectarivores are potentially exposed to dietary ethanol produced by fermentative yeasts which metabolize sugars. Some nectarivorous mammals exhibit a preference for low-concentration ethanol solutions compared to controls of ...
Julia Choi   +6 more
doaj   +1 more source

Hummingbird foraging preferences during extreme heat events

open access: yesEcology and Evolution, 2023
Climate change is projected to increase global mean annual temperatures as well as the frequency and intensity of extreme heat events. These changes are anticipated to alter the behavior of animals as they seek to thermoregulate in extreme heat.
Sabina Lucke Lawrence, Jenny Hazlehurst
doaj   +1 more source

Comparative chromosome painting in hummingbirds (Trochilidae) [PDF]

open access: yesGenetics and Molecular Biology, 2020
Hummingbirds (Trochilidae) are one of the most enigmatic avian groups, and also among the most diverse, with approximately 360 recognized species in 106 genera, of which 43 are monotypic.
Tiago Marafiga Degrandi   +9 more
doaj   +1 more source

Dying for love: Illegal international trade in hummingbird love charms

open access: yesConservation Science and Practice, 2022
Hummingbirds (family Trochilidae) are among the most recognizable groups of birds, due to their tiny size, supremely maneuverable flight, and iridescent plumage.
Pepper W. Trail
doaj   +1 more source

Pollinator effectiveness in the mixed-pollination system of a Neotropical Proteaceae, Oreocallis grandiflora

open access: yesJournal of Pollination Ecology, 2021
In pollination systems with a diverse community of floral visitors, qualitative and quantitative variations in pollination effectiveness can lead to a system in which higher effectiveness results from the synergetic contribution of multiple pollinators ...
Santiago Cárdenas-Calle   +7 more
doaj   +1 more source

Hovering in the heat: effects of environmental temperature on heat regulation in foraging hummingbirds [PDF]

open access: yesRoyal Society Open Science, 2017
At high temperature (greater than 40°C) endotherms experience reduced passive heat dissipation (radiation, conduction and convection) and increased reliance on evaporative heat loss.
Donald R. Powers   +5 more
doaj   +1 more source

Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping

open access: yesBiomimetics, 2023
Hummingbirds are flapping winged creatures with unique flight mechanisms. Their flight pattern is more similar to insects than other birds. Because their flight pattern provides a large lift force at a very small scale, hummingbirds can remain hovering ...
Yilong Min   +3 more
doaj   +1 more source

Visual Sensory Signals Dominate Tactile Cues during Docked Feeding in Hummingbirds

open access: yesFrontiers in Neuroscience, 2017
Animals living in and interacting with natural environments must monitor and respond to changing conditions and unpredictable situations. Using information from multiple sensory systems allows them to modify their behavior in response to their dynamic ...
Benjamin Goller   +4 more
doaj   +1 more source

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