Resolution of a paradox: Hummingbird flight at high elevation does not come without a cost [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2004 Flight at high elevation is energetically demanding because of parallel reductions in air density and oxygen availability. The hovering flight of hummingbirds is one of the most energetically expensive forms of animal locomotion, but hummingbirds are ...
Douglas L Altshuler +2 more
exaly +5 more sources
A new low-turbulence wind tunnel for animal and small vehicle flight experiments [PDF]
Royal Society Open Science, 2017 Our understanding of animal flight benefits greatly from specialized wind tunnels designed for flying animals. Existing facilities can simulate laminar flow during straight, ascending and descending flight, as well as at different altitudes. However, the
Daniel B. Quinn +3 more
doaj +3 more sources
Beyond robins: aerodynamic analyses of animal flight [PDF]
Journal of the Royal Society Interface, 2008 Recent progress in studies of animal flight mechanics is reviewed. A range of birds, and now bats, has been studied in wind tunnel facilities, revealing an array of wake patterns caused by the beating wings and also by the drag on the body. Nevertheless, the quantitative analysis of these complex wake structures shows a degree of similarity among all ...
Anders Hedenström, G R Spedding
exaly +3 more sources
The use of multi-sensor drone data for the development and validation of methods to track and characterize marine animals [PDF]
Scientific ReportsLow cost, unmodified, commercially available drones can provide an effective platform for the study and characterization of marine megafauna. We present methods which utilize video and flight data to allow for both the continuous tracking of animals and ...
Kristian J. Sexton +5 more
doaj +2 more sources
Wake Development behind Paired Wings with Tip and Root Trailing Vortices: Consequences for Animal Flight Force Estimates [PDF]
PLoS ONE, 2014 Recent experiments on flapping flight in animals have shown that a variety of unrelated species shed a wake behind left and right wings consisting of both tip and root vortices.
Per Henningsson +2 more
exaly +4 more sources
Coevolving advances in animal flight and aerial robotics [PDF]
Interface Focus, 2017 David Lentink
exaly +1 more source
Non-canonical function of an Hif-1α splice variant contributes to the sustained flight of locusts
eLife, 2022 The hypoxia inducible factor (Hif) pathway is functionally conserved across metazoans in modulating cellular adaptations to hypoxia. However, the functions of this pathway under aerobic physiological conditions are rarely investigated. Here, we show that
Ding Ding +7 more
doaj +1 more source
eLife, 2022 A gene normally involved in responding to hypoxia helps to protect insect muscles during migratory flight in a non-oxygen dependent manner.
Mingyu Shin, Jiwon Shim
doaj +1 more source
Hovering hummingbird wing aerodynamics during the annual cycle. II. Implications of wing feather moult [PDF]
Royal Society Open Science, 2018 Birds usually moult their feathers in a particular sequence which may incur aerodynamic, physiological and behavioural implications. Among birds, hummingbirds are unique species in their sustained hovering flight.
Yonathan Achache +2 more
doaj +1 more source
A Sensory-Motor Control Model of Animal Flight Explains Why Bats Fly Differently in Light Versus Dark [PDF]
PLoS Biology, 2015 Sigurd Skogestad +2 more
exaly +2 more sources