Results 11 to 20 of about 78,488 (257)

The use of multi-sensor drone data for the development and validation of methods to track and characterize marine animals [PDF]

Scientific Reports
Low 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, Elise F. Danko, Austin Boesch, Nicholas Cheung, Alexandra E. DiGiacomo, Robert W. Holt   +5 more
doaj   +2 more sources

Humming hummingbirds, insect flight tones, and a model of animal flight sound [PDF]

Journal of Experimental Biology, 2020
Why do hummingbirds hum and insects whine when their wings flap in flight? Gutin proposed that a spinning propeller produces tonal sound because the location of the center of aerodynamic pressure on each blade oscillates relative to an external receiver.
Christopher J. Clark, Emily A. Mistick
openaire   +2 more sources

Coupling Atmospheric and Biological Remote Sensing to Investigate Boundary-Layer Evolution and Animal Flight Behavior as Affected by the 2017 North American Solar Eclipse

Remote Sensing, 2020
The daytime atmospheric boundary layer is characterized by vertical convective motions that are driven by solar radiation. Lift provided by thermal updrafts is sufficiently ubiquitous that some diurnal birds and arthropods have evolved specialized flight
Phillip M. Stepanian, Charlotte E. Wainwright   +1 more
doaj   +1 more source

Oceanic and Atmospheric Correlations to Cetacean Mass Stranding Events in Cape Cod, Massachusetts, USA

Geophysical Research Letters, 2021
Groups of pelagic dolphins and whales (order Cetacea) regularly strand on beaches throughout the world. These strandings are referred to as mass stranding events (MSEs). MSEs have been observed for centuries, however the underlying causes remain unclear.
R. Zellar, A. Pulkkinen, K. Moore, C. S. Rousseaux, D. Reeb   +4 more
doaj   +1 more source

Soaring migrants flexibly respond to sea-breeze in a migratory bottleneck: using first derivatives to identify behavioural adjustments over time

Movement Ecology, 2023
Background Millions of birds travel every year between Europe and Africa detouring ecological barriers and funnelling through migratory corridors where they face variable weather conditions.
Paolo Becciu, David Troupin, Leonid Dinevich, Yossi Leshem, Nir Sapir   +4 more
doaj   +1 more source

Animal Flight Dynamics I. Stability in Gliding Flight

Journal of Theoretical Biology, 2001
Stability is as essential to flying as lift itself, but previous discussions of how flying animals maintain stability have been limited in both number and scope. By developing the pitching moment equations for gliding animals and by discussing potential sources of roll and yaw stability, we consider the various sources of static stability used by ...
Thomas, A, Taylor, G
openaire   +2 more sources

Controllable factors affecting accuracy and precision of human identification of animals from drone imagery

Ecosphere, 2023
Surveying animal populations using drones (unoccupied aircraft systems [UAS]) provides numerous advantages; however, few best practices exist to survey animal communities with drones.
Landon R. Jones, Jared A. Elmore, B. Santhana Krishnan, Sathishkumar Samiappan, Kristine O. Evans, Morgan B. Pfeiffer, Bradley F. Blackwell, Raymond B. Iglay   +7 more
doaj   +1 more source

Dynamic echo information guides flight in the big brown bat

Frontiers in Behavioral Neuroscience, 2016
Animals rely on sensory feedback from their environment to guide locomotion. For instance, visually guided animals use patterns of optic flow to control their velocity and to estimate their distance to objects (e.g. Srinivasan et al. 1991, 1996). In this
Michaela eWarnecke, Wu-Jung eLee, Wu-Jung eLee, Anand eKrishnan, Cynthia F Moss   +4 more
doaj   +1 more source

Diurnal Flight Activity of House Flies (Musca domestica) is Influenced by Sex, Time of Day, and Environmental Conditions

Insects, 2020
House flies (Musca domestica L.) are common synanthropic pests associated with confined animal operations, including dairy farms. House flies can cause substantial nuisance and may transmit human and animal pathogens.
Levi K. Zahn, Alec C. Gerry
doaj   +1 more source

FMRFa receptor stimulated Ca2+ signals alter the activity of flight modulating central dopaminergic neurons in Drosophila melanogaster. [PDF]

PLoS Genetics, 2018
Neuropeptide signaling influences animal behavior by modulating neuronal activity and thus altering circuit dynamics. Insect flight is a key innate behavior that very likely requires robust neuromodulation.
Preethi Ravi, Deepti Trivedi, Gaiti Hasan   +2 more
doaj   +1 more source