Results 41 to 50 of about 1,322 (144)
Convergent Evolution of Wingbeat-Powered Anti-Bat Ultrasound in the Microlepidoptera
Frontiers in Ecology and Evolution, 2021 Bats and moths provide a textbook example of predator-prey evolutionary arms races, demonstrating adaptations, and counter adaptations on both sides. The evolutionary responses of moths to the biosonar-led hunting strategies of insectivorous bats include
Liam Joseph O’Reilly +4 more
doaj +1 more source
Biosonar performance of foraging beaked whales (Mesoplodon densirostris) [PDF]
, 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 +5 more
core +1 more source
Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring
Remote Sensing in Ecology and Conservation, EarlyView.Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite +8 more
wiley +1 more source
Amazon river dolphins ( Inia geoffrensis ) modify biosonar output level and directivity during prey interception in the wild [PDF]
, 2017 Toothed whales have evolved to live in extremely different habitats and yet they all rely strongly on echolocation for finding and catching prey. Such biosonar-based foraging involves distinct phases of searching for, approaching and capturing prey ...
Ladegaard, M. +14 more
core +1 more source
Integrative Zoology, EarlyView.Spatiotemporal distribution of odontocete cetaceans within China's Jiushan Archipelago National Nature Reserve was investigated. Fishing vessels significantly reduced both cetacean acoustic detections and feeding activity, whereas gillnets selectively suppressed cetacean feeding behavior without affecting overall cetacean detection rates.
Yifan Liu +10 more
wiley +1 more source
Echolocation by the harbour porpoise: Life in coastal waters
Frontiers in Physiology, 2013 The harbour porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere.
Lee Anton Miller, Magnus eWahlberg
doaj +1 more source
Lancet dynamics in greater horseshoe bats, Rhinolophus ferrumequinum. [PDF]
PLoS ONE, 2015 Echolocating greater horseshoe bats (Rhinolophus ferrumequinum) emit their biosonar pulses nasally, through nostrils surrounded by fleshy appendages ('noseleaves') that diffract the outgoing ultrasonic waves.
Weikai He +4 more
doaj +1 more source
WAH‐i: Optimising microphone array geometry for customised localisation accuracy
Methods in Ecology and Evolution, EarlyView.Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley +1 more source
The acoustic world of bat biosonar
, 2018 Khyam, MO ORCiD: 0000-0002-1988-2328Bats and toothed whales (odontocetes) have both independently evolved sophisticated biosonar systems. This raises the question how similar the functional principles of these systems are.
Müller, Rolf +11 more
core +1 more source
A computational model for biosonar echoes from foliage. [PDF]
PLoS ONE, 2017 Since many bat species thrive in densely vegetated habitats, echoes from foliage are likely to be of prime importance to the animals' sensory ecology, be it as clutter that masks prey echoes or as sources of information about the environment.
Chen Ming +4 more
doaj +1 more source