Results 61 to 70 of about 21,078 (266)
Intraspecific variation of cochlear morphology in bowhead and beluga whales
The Anatomical Record, EarlyView.Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley +1 more source
The ontogeny of asymmetry in echolocating whales
Proceedings of the Royal Society B: Biological Sciences, 2022 Extreme asymmetry of the skull is one of the most distinctive traits that characterizes toothed whales (Odontoceti, Cetacea). The origin and function of cranial asymmetry are connected to the evolution of echolocation, the ability to use high-frequency sounds to navigate the surrounding environment.
Agnese Lanzetti +4 more
openaire +2 more sources
Hearing and Echolocation in the Australian Grey Swiftlet, Collocalia Spodiopygia [PDF]
, 1987 The frequency sensitivity of hearing in the grey swiftlet, Collocalia spodiopygia, was determined by neuronal recordings from the auditory midbrain (MLD).
Coles, Roger B. +2 more
core
Convergences in the diversification of bats
Current Zoology, 2010 Twenty-five characters or suites of characters from bats are considered in light of changes in bat classification. The characters include some associated with flower-visiting (two), echolocation (12), roosting (six), reproduction (two) and three are of ...
M. Brock FENTON
doaj
Dolphins can maintain vigilant behavior through echolocation for 15 days without interruption or cognitive impairment. [PDF]
PLoS ONE, 2012 In dolphins, natural selection has developed unihemispheric sleep where alternating hemispheres of their brain stay awake. This allows dolphins to maintain consciousness in response to respiratory demands of the ocean. Unihemispheric sleep may also allow
Brian K Branstetter +4 more
doaj +1 more source
Oikos, EarlyView.Invasive ants threaten biodiversity worldwide. They may benefit from being novel if native species fail to show appropriate responses to their cues. Cues include chemical footprints (or ‘home‐range markings' in ants) left by all walking insects, which resemble cuticular hydrocarbons (CHCs).
Florian Menzel, Gülsem Kara
wiley +1 more source
Echolocating toothed whales use ultra-fast echo-kinetic responses to track evasive prey
eLife, 2021 Visual predators rely on fast-acting optokinetic responses to track and capture agile prey. Most toothed whales, however, rely on echolocation for hunting and have converged on biosonar clicking rates reaching 500/s during prey pursuits.
Heather Vance +6 more
doaj +1 more source
Wildlife Biology, EarlyView.Sympatric bat species can co‐exist and avoid interspecific competition via niche differentiation e.g. diet. Detecting dietary differences can be achieved by comparing dietary niches of sympatric and allopatric populations. If dietary overlap is higher in sympatry versus allopatry, co‐occurrence may be altering the dietary niche of the species.
Heather Wood +3 more
wiley +1 more source
Localization of brain stem motoneurons innervating the laryngeal muscles in the rufous horseshoe bat,rhinolophus rouxi [PDF]
, 1981 The motoneurons innervating the laryngeal muscles were localized in the rufous horseshoe bat,Rhinolophus rouxi, using the HRP method. HRP was applied to the cricothyroid muscle and to the cut end of the recurrent laryngeal nerve. Labeled motoneurons were
bowden +24 more
core +1 more source
The Echobot: An automated system for stimulus presentation in studies of human echolocation.
PLoS ONE, 2019 Echolocation is the detection and localization of objects by listening to the sounds they reflect. Early studies of human echolocation used real objects that the experimental leader positioned manually before each experimental trial.
Carlos Tirado +2 more
doaj +1 more source