Results 61 to 70 of about 1,322 (144)
Insects and Survival: A Review of Primary and Secondary Defense Strategies
Entomologia Experimentalis et Applicata, Volume 174, Issue 7, Page 601-624, July 2026.Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva +3 more
wiley +1 more source
Temporal Feasibility Constraints on Wingbeat‐Call Synchrony in Actively Echolocating Bats
Ecology and Evolution, Volume 16, Issue 5, May 2026.This study addresses a long‐standing question about the temporal correlation between two rhythmic actions during active echolocation: wingbeat and calling. Existing studies show a certain level of synchrony between the two processes; however, they do not consider the underlying drivers.
Ravi Umadi
wiley +1 more source
Directionality of Ganges river dolphin biosonar.
, 2013 Composite horizontal directionality plot of biosonar signals from Ganges river dolphins with original data (black squares) redigitized from Bahl et al. [65].
Brian D. Smith (398034) +5 more
core +1 more source
, 2018 Yangtze finless porpoises (Neophocaena asiaeorientalis) are known to use the narrowband signals for echolocation. In this study, a finite-element model was configured based on computed tomography imaging technique and tissue physical properties ...
Song, Zhongchang +5 more
core +2 more sources
3D sparse imaging in biosonar scene analysis
, 2009 : Bats can navigate through foliage thanks to their biosonar. To build an image of their environment they emit ultrasonic pulses and analyse the corresponding echo signals which consist of a complex superposition of a set of highly overlapping reflected ...
Steckel, Jan +2 more
core +1 more source
Echolocation in Oilbirds and swiftlets
Frontiers in Physiology, 2013 The discovery of ultrasonic bat echolocation prompted a wide search for other animal biosonar systems, which yielded, among few others, two avian groups.
Signe eBrinkløv +2 more
doaj +1 more source
Mouth-clicks used by blind expert human echolocators - signal description and model based signal synthesis. [PDF]
PLoS Computational Biology, 2017 Echolocation is the ability to use sound-echoes to infer spatial information about the environment. Some blind people have developed extraordinary proficiency in echolocation using mouth-clicks. The first step of human biosonar is the transmission (mouth
Lore Thaler +10 more
doaj +1 more source
Quiet Signals of Burmeister's Porpoises (Phocoena spinipinnis) Recorded in Chile and Peru
Marine Mammal Science, Volume 42, Issue 2, April 2026.ABSTRACT Burmeister's porpoises are cryptic and challenging to detect visually. More information on their acoustic signals could facilitate the use of passive acoustic monitoring (PAM) and help to better understand their ecology. Here, clicks were recorded from two different Burmeister's porpoise populations, one in Chile and the other in Peru, using a
Ruth Ortés‐Villauriz +7 more
wiley +1 more source
Subsurface Behaviors of Hector's Dolphins Could Increase Their Risk of Bycatch
Conservation LettersHector's dolphins, endemic to New Zealand, suffer from bycatch in fishing gear. Fishing restrictions in inshore areas have reduced bycatch, although dolphins have been recorded outside these areas.
Ilias Foskolos +10 more
doaj +1 more source
Ecology and Evolution, Volume 16, Issue 3, March 2026.This study examines the impact of speed and proximity of recreational boats on the swimming speed and surfacing interval of one of the most common coastal cetacean species, the harbour porpoise (Phocoena phocoena), using data collected by unmanned aerial vehicles (UAVs) in a key habitat for the vulnerable Belt Sea population.
J. Till +4 more
wiley +1 more source