Results 11 to 20 of about 5,753 (220)
Vocal dimorphism in Anna's hummingbirds
Sexual dimorphism in vocal signals is found across many bird species. By evaluating correlations among sex, behaviors, and vocalizations, the meaning and utility of sound production may be inferred.
Sierra Ru‐Yi Glassman +2 more
doaj +2 more sources
Hummingbird foraging preferences during extreme heat events
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]
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
Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping
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
Dying for love: Illegal international trade in hummingbird love charms
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
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
Floral resource availability of Dicliptera squarrosa (Acanthaceae) and its dependence on hummingbirds for fruit formation in a forest fragment of Central Brazil [PDF]
Background and aims – Hummingbirds are dependent and specialized on nectar-feeding, and many plants depend upon them for pollination. However, the degree of plant-pollinator interdependence varies greatly among species; thus, information on plant mating ...
Raphael Matias +3 more
doaj +3 more sources
Visual Sensory Signals Dominate Tactile Cues during Docked Feeding in Hummingbirds
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
Current contrasting population trends among North American hummingbirds
As pollinators, hummingbirds play a critical role for both the function of ecological communities and in providing ecosystem services for people. To examine the conservation status of North American hummingbirds, we analyzed Breeding Bird Survey data for
Simon G. English +3 more
doaj +1 more source
Proctophyllodes huitzilopochtlii Atyeo & Braasch 1966 (Acariformes: Astigmata: Proctophyllodidae), a feather mite, was found on feathers collected from five hummingbird species in California.
Youki K Yamasaki +7 more
doaj +1 more source

