Results 31 to 40 of about 9,039 (182)
Shape Identification and Classification in Echolocation [PDF]
SIAM Journal on Imaging Sciences, 2014 The paper aims at proposing the first shape identification and classification algorithm in echolocation. The approach is based on first extracting geometric features from the reflected waves and then matching them with precomputed ones associated with a dictionary of targets.
Habib Ammari +2 more
openaire +2 more sources
Biosonar performance of foraging beaked whales (Mesoplodon densirostris)
, 2005 Toothed whales (Cetacea, odontoceti) emit sound pulses to probe their surroundings by active echolocation. Noninvasive, acoustic Dtags were placed on deep-diving Blainville's beaked whales (Mesoplodon densirostris) to record their ultrasonic clicks and ...
Madsen, P T +4 more
core +1 more source
Optimizing passive acoustic sampling of bats in forests [PDF]
, 2014 Passive acoustic methods are increasingly used in biodiversity research and monitoring programs because they are cost-effective and permit the collection of large datasets.
Jérémy S. P. Froidevaux +7 more
core +1 more source
Spectral and temporal gating mechanisms enhance the clutter rejection in the echolocating bat, Rhinolophus rouxi [PDF]
, 1991 Doppler shift compensation behaviour in horseshoe bats, Rhinolophus rouxi, was used to test the interference of pure tones and narrow band noise with compensation performance.
Neumann, Ingrid, Schuller, Gerd
core +1 more source
Perceptual strategies in active and passive hearing of neotropical bats [PDF]
, 2008 Basic spectral and temporal sound properties, such as frequency content and timing, are evaluated by the auditory system to build an internal representation of the external world and to generate auditory guided behaviour. Using echolocating bats as model
Goerlitz, Holger R.
core
On- and Off-Responses in the Inferior Colliculus of the Greater Horseshoe Bat to Pure Tones [PDF]
, 1971 1. The auditory threshold curve of averaged evoked potentials of the colliculus inferior in Rhinolophus /errum equinum to pure tone stimulation from 1 to 100 kHz is presented (Fig. 1).
Schuller, Gerd +2 more
core
, 2013 Acoustic survey methods can be used to estimate density and abundance using sounds produced by cetaceans and detected using hydrophones if the probability of detection can be estimated.
Gregory S. Schorr +13 more
core +1 more source
Conservation Science and Practice, EarlyView.Artificial Light At Night (ALAN) is an emerging environmental issue with significant impacts on nocturnal insects, particularly nocturnal Lepidoptera. We conducted a systematic review addressing the effects of ALAN on insects, with a focus on nocturnal Lepidoptera.
Denise Trombin +2 more
wiley +1 more source
Journal of Anatomy, EarlyView.Manual and virtual dissections were employed to examine the masticatory muscle architecture and bite force of three South American marsupials. The organisation of the muscles differed between species, with predicted bite forces exceeding previous estimates.
Alice Melekian +4 more
wiley +1 more source
Beaver dam analogues increase amphibian breeding occupancy and bat activity
Restoration Ecology, EarlyView.Abstract Introduction Beavers are ecosystem engineers that can create ponds, increase stream complexity, and enhance biodiversity. To mimic these and other effects, restoration practitioners increasingly install beaver dam analogues (BDAs) in degraded streams.
Julianna Hallza +6 more
wiley +1 more source