Citations with the tag: BAT sounds
Results 1 - 50
- A NOSE FOR SIGHT.
Hennessey, Gail // Science World; 2/19/2007, Vol. 63 Issue 10, p7
The article focuses on a study on the facial folds of bats which do help them see in the dark and improve echolocation.
Hennessey, Gail // Nature; 2/18/2010, Vol. 463 Issue 7283, p848
The article presents the views of Brock Fenton, researcher at the University of Western Ontario in London, Canada, on his discovery of echolocation in bats.
- Veselka et al. reply.
Veselka, Nina; McErlain, David D.; Holdsworth, David W.; Eger, Judith L.; Chhem, Rethy K.; Mason, Matthew J.; Brain, Kirsty L.; Faure, Paul A.; Fenton, M. Brock // Nature; 8/19/2010, Vol. 466 Issue 7309, pE7
Replying to: U. Wittrock 466, 10.1038/nature09156 (2010)Wittrock suggests that a stylohyal�tympanic connection in laryngeally echolocating bats as the one described in our studycould transmit laryngeal vibrations to both ears. This could represent a �local oscillator�, forming part of a...
- Listen for Food.
Veselka, Nina; McErlain, David D.; Holdsworth, David W.; Eger, Judith L.; Chhem, Rethy K.; Mason, Matthew J.; Brain, Kirsty L.; Faure, Paul A.; Fenton, M. Brock // Scholastic News -- Edition 2; Oct2012, Vol. 69 Issue 2, Special section p4
The article explains that bats make sounds and wait for the echoes, a phenomenon called echolocation.
- BIGMOUTH BATS.
Adams, Jacqueline // Science World; 9/1/2008, Vol. 65 Issue 1, p5
The article reports that researchers from the University of Southern Denmark found that the greater bulldog bat is the loudest known flying animal.
- FAST CALL.
Park, Alice // Time; 10/17/2011, Vol. 178 Issue 15, p21
The article presents a photograph of bats and discusses the use of rapidly contracting vocal muscles to produce a terminal buzz in echolocation.
- FAST CALL.
Park, Alice // Time International (Atlantic Edition); 10/17/2011, Vol. 178 Issue 15, p17
The article presents a photograph of bats and discusses the use of rapidly contracting vocal muscles to produce a terminal buzz in echolocation.
- Journal of Applied Ecology: Holy bat detector! Ecologists develop first Europe-wide bat ID tool.
Park, Alice // Biomedical Market Newsletter; 8/1/2012, Vol. 21, p1
The article presents information on the development of Europe-wide tool by the ecologists for identifying bats using their echolocation calls.
- MIGRATION OF BATS ALONG A LARGE RIVER VALLEY IN SOUTHWESTERN POLAND.
FURMANKIEWICZ, JOANNA; KUCHARSKA, MONIKA // Journal of Mammalogy; Dec2009, Vol. 90 Issue 6, p1310
Several European bat species migrate long distances of >1,000 km, but information on migration routes is poor or anecdotal, or both. We investigated migration of bats along the Oder River valley in southwestern Poland to determine the significance of large river valleys as migration corridors...
- A New Field Record for Bat Longevity.
Podlutsky, Andrej J.; Khritankov, Alexander M.; Ovodov, Nikolai D.; Austad, Steven N. // Journals of Gerontology Series A: Biological Sciences & Medical ; Nov2005, Vol. 60A Issue 11, p1366
The article focuses on the record for bat longevity in terms with standardized by body size. The need for bats to have well-maintained high frequency hearing to detect prey with its echolocation was explained. The possible implication of a substantial period of yearly hibernation for the...
- Animal behaviour: Echolocation for communication.
Podlutsky, Andrej J.; Khritankov, Alexander M.; Ovodov, Nikolai D.; Austad, Steven N. // Nature; 10/11/2012, Vol. 490 Issue 7419, p147
The article focuses on the study by Mirjam Kn�rnschild and colleagues which shows the detection of echolocation calls of an approaching bats by roosting males.
Podlutsky, Andrej J.; Khritankov, Alexander M.; Ovodov, Nikolai D.; Austad, Steven N. // American Heritage Student Science Dictionary; 2009, p35
A definition of the term "bat" is presented. The term refers to any of various flying mammals that have thin wings consisting of skin that extends from the forelimbs to the hind limbs or tail. Bats are usually active at night and use echolocation to navigate. INSET: bat.
- Winged Hunters.
Markovics, Joyce // Bat's Cave; 2010, p10
This chapter of the book "The Bat's Cave: A Dark City," discusses how Mexican free-tailed bats catch insects using echolocation.
- SEXUAL DIMORPHISM IN BIG BROWN BAT (EPTESICUS FUSCUS) ULTRASONIC VOCALIZATIONS IS CONTEXT DEPENDENT.
GRILLIOT, MATTHEW E.; BURNETT, STEPHEN C.; MENDON�A, MARY T. // Journal of Mammalogy; Feb2009, Vol. 90 Issue 1, p203
Although bats are well known for their use of ultrasound for echolocation, there is limited evidence for its use in a social context. We tested whether ultrasonic vocalizations in bats were contextually (roosting or flying) sexually dimorphic. During the reproductive season, we recorded...
- BEHAVIOR OF SCANDINAVIAN BATS DURING MIGRATION AND FORAGING AT SEA.
AHL�N, INGEMAR; BAAG�E, HANS J.; BACH, LOTHAR // Journal of Mammalogy; Dec2009, Vol. 90 Issue 6, p1318
We studied bats migrating and foraging over the sea by direct observations and automatic acoustic recording. We recorded 11 species (of a community of 18 species) flying over the ocean up to 14 km from the shore. All bats used sonar during migration flights at sea, often with slightly lower...
- Bats are My Best Friends.
Walker, Ernest P. // Saturday Evening Post; 2/4/1950, Vol. 222 Issue 32, p26
Relates the author's experience in studying the behavior of bats. Temperature of bats when at rest; Adaptability of the mammals to new surroundings; Types of vibrations emitted by bats.
- Seeing with Sound.
Walker, Ernest P. // Click; Oct2006, Vol. 9 Issue 8, p16
The article presents information on how bats finds its food in the dark. Bats uses their ears when hunting for food. As the bat flies, it lets out burst of high-pitch sounds. If an insect is nearby, the sound waves bounce off it and travel back to the bat, creating an echo that the bat can hear....
- An autocorrelation model of bat sonar.
Wiegrebe, Lutz // Biological Cybernetics; Jun2008, Vol. 98 Issue 6, p587
Their sonar system allows echolocating bats to navigate with high skill through a complex, three- dimensional environment at high speed and low light. The auditory analysis of the echoes of their ultrasonic sounds requires a detailed comparison of the emission and echoes. Here an auditory model...
- Things to look out for: Bats.
Gates, Tessa // Farmers Weekly; 7/21/2006, Vol. 145 Issue 3, p79
The article presents facts about bats. Bats are fascinating creatures and warm summer evenings are just the time to spot them flitting around farm buildings or swooping low near ponds. Bats are not blind but they have a special way of seeing things in the dark. This is called echo-location. Bats...
- THE FLAT-HEADED MYOTIS IS ALIVE & WELL.
Arroyo-Cabrales, Joaqu�n; Medell�n, Rodrigo A.; Polaco, Oscar J. // BATS Magazine; Fall2006, Vol. 24 Issue 3, p7
The article reports on the discovery of eight flat-headed myotis in northeastern Mexico. It offers information on the Program for the Conservation of Bats of Mexico, in which the discovery of the eight bats was a part of. The program, which was assisted by the North American Bat Conservation...
- ACOUSTIC IDENTIFICATION OF MORMOOPID BATS: A SURVEY DURING THE EVENING EXODUS.
Mac�as, Silvio; Mora, Emanuel C.; Garc�a, Adianez // Journal of Mammalogy; Apr2006, Vol. 87 Issue 2, p324
Echolocation calls emitted by the 4 species of Cuban mormoopid bats were compared to determine vocal signatures that enable identification of each species in the field during their evening exodus. Echolocation calls produced by Mormoops blainvilli are downward frequency-modulated (FM) signals in...
- Active Listening for Spatial Orientation in a Complex Auditory Scene.
Moss, Cynthia F.; Bohn, Kari; Gilkenson, Hannah; Surlykke, Annemarie // PLoS Biology; Apr2006, Vol. 4 Issue 4, pe79
To successfully negotiate a complex environment, an animal must control the timing of motor behaviors in coordination with dynamic sensory information. Here, we report on adaptive temporal control of vocal-motor behavior in an echolocating bat, Eptesicus fuscus, as it captured tethered insects...
- Ecology and neuroethology of bat echolocation: a tribute to Gerhard Neuweiler.
Siemers, Bj�rn; Wiegrebe, Lutz; Grothe, Benedikt // Journal of Comparative Physiology A: Neuroethology, Sensory, Neu; May2011, Vol. 197 Issue 5, p399
No abstract available.
- How greater mouse-eared bats deal with ambiguous echoic scenes.
Melc�n, M.; Yovel, Y.; Denzinger, A.; Schnitzler, H.-U. // Journal of Comparative Physiology A: Neuroethology, Sensory, Neu; May2011, Vol. 197 Issue 5, p505
Echolocating bats have to assign the received echoes to the correct call that generated them. Failing to do so will result in the perception of virtual targets that are positioned where there is no actual target. The assignment of echoes to the emitted calls can be ambiguous especially if the...
- Comparison of properties of cortical echo delay-tuning in the short-tailed fruit bat and the mustached bat.
Hagemann, Cornelia; Vater, Marianne; K�ssl, Manfred // Journal of Comparative Physiology A: Neuroethology, Sensory, Neu; May2011, Vol. 197 Issue 5, p605
Target-distance computation by cortical neurons sensitive to echo delay is an essential characteristic of the auditory system of insectivorous bats. To assess if functional requirements such as detection of small insects versus larger stationary surfaces of plants are reflected in cortical...
- Note: A Field Assessment of the Defensive Responses of Moths to an Auditory Stimulus.
ST. JULIANA, JUSTIN R.; FENTON, BROCK M.; KORINE, CARMI; PINSHOW, BERRY; WOJCIECHOWSKI, MICHAL; KRAVCHENKO, VASILIY // Israel Journal of Ecology & Evolution; 2007, Vol. 53 Issue 2, p173
We examined the responses of moths to an auditory stimulus in the field with respect to moth size, moth activity state (at rest or flying), whether it responded, and response type. Moths most commonly responded by changing flight direction. Flying moths responded significantly more often to the...
- Does Tadarida teniotis really occur in Crimea? (Chiroptera: Molossidae).
Marcel, Uhrin; Suren, Gazaryan; Petr, Benda // Lynx, series nova; 2009, Vol. 40 Issue 1, p5
Echolocation calls identified as searching calls of Tadarida teniotis were recorded at two sites in the forested mountainous part of the Crimean Peninsula, Ukraine, in September 2009. Description of the records is given and possible occurrence of T. teniotis in Crimea is discussed.
- Active Control of Acoustic Field-of-View in a Biosonar System.
Yovel, Yossi; Falk, Ben; Moss, Cynthia F.; Ulanovsky, Nachum // PLoS Biology; Sep2011, Vol. 9 Issue 9, p1
Active-sensing systems abound in nature, but little is known about systematic strategies that are used by these systems to scan the environment. Here, we addressed this question by studying echolocating bats, animals that have the ability to point their biosonar beam to a confined region of...
- Bat walking.
Yovel, Yossi; Falk, Ben; Moss, Cynthia F.; Ulanovsky, Nachum // New Scientist; 8/19/2006, Vol. 191 Issue 2565, p48
This article presents information on bats. Bats are flying mammals and their formal mane is Chiroptera. Their high-frequency echolocation system makes them dreaded night flyers and hunters. They have also been associated with ghosts and disease. There are 1100 bat species worldover and only...
- A new phonic type of the rufous horseshoe bat Rhinolophus rouxii from southern India.
Chattopadhyay, Balaji; Schuller, Gerd; Garg, Kritika M.; Kandula, Sripathi // Current Science (00113891); 7/10/2010, Vol. 99 Issue 1, p114
The Old World horseshoe bats are speculated to comprise of enormous cryptic diversity. The only Rhinolophid that has been studied with some detail in the subcontinent is the rufous horseshoe bat Rhinolophus rouxii. This bat has shown some extent of acoustic diversity between allopatric...
- PLANTS SPEAK TO BATS.
Chattopadhyay, Balaji; Schuller, Gerd; Garg, Kritika M.; Kandula, Sripathi // National Wildlife (World Edition); Dec2011/Jan2012, Vol. 50 Issue 1, p10
The article discusses a study by ecologist Ralph Simon and team on the leaf shape of the Marcgravia evenia vine and its effect on the echolocation behavior of Pallas's long-tongued bats, noting that the leaf dish shape reflects bat signals, attracting more feeding bats and enabling more pollination.
- Bat intelligence search with application to multi-objective multiprocessor scheduling optimization.
Malakooti, Behnam; Kim, Hyun; Sheikh, Shaya // International Journal of Advanced Manufacturing Technology; Jun2012, Vol. 60 Issue 9-12, p1071
In this paper, we present the bat intelligence search for the first time. Bat intelligence is a novel and unique heuristic that models two major prey hunting behaviors of bats: (a) utilization of echolocation to observe the environment and (b) employment of constant absolute target direction...
- Echolocation sounds of the painted bat Kerivoula picta (Vespertilionidae).
Sripathi, K.; Raghuram, H.; Nathan, P. Thiruchenthil // Current Science (00113891); 11/10/2006, Vol. 91 Issue 9, p1145
The article presents information on the structure and characteristics of the echolocation sounds of the painted bat Kerivoula picta captured at the Madurai Kamaraj University in India. Several equipment used in recording the echolocation calls include a SM2 microphone. The duration of the calls...
- Bat Mortality and Activity at a Northern Iowa Wind Resource Area.
JAIN, AAFFAB A.; KOFORD, ROLF R.; HANCOCK, ALAN W.; ZENNER, GUY G. // American Midland Naturalist; Jan2011, Vol. 165 Issue 1, p185
No abstract available.
- A Call in the Night.
Szewczak, Joseph M. // Endangered Species Bulletin; Spring2011, Vol. 36 Issue 1, p42
The article focuses on the Sonobat technology classifying and automatic recording bat species through their echolocation calls. It says that tracking light-tagged bats and flying bats on tethered zip lines were use to pair recordings with known species. It mentions that an extensive reference...
- THE DEVELOPMENT OF THE ULTRASOUND SOCIAL CALLS OF ADULT RHINOLOPHUS FERRUMEQUINUM FROM INFANT BAT ULTRASOUND CALLS.
ANDREWS, MARGARET M.; McOWAT, TOM P.; ANDREWS, PETER T.; HAYCOCK, ROBERT J. // Bioacoustics (AB Academic Publishers); 2011, Vol. 20 Issue 3, p297
The article presents a study which aims to categorize the harmonics, frequency, and duration of the ultrasound calls of infant Rhinolophus (R.) ferrumequinum compared to adult R. ferrumequinum. It notes that the study recorded the calls of infant R. ferrumequinum in a nursery roost in West Wales...
- Sound-evoked oscillation and paradoxical latency shift in the inferior colliculus neurons of the big fruit-eating bat, Artibeus jamaicensis.
Hechavarr�a, Julio; Cobo, Ariadna; Fern�ndez, Yohami; Mac�as, Silvio; K�ssl, Manfred; Mora, Emanuel // Journal of Comparative Physiology A: Neuroethology, Sensory, Neu; Dec2011, Vol. 197 Issue 12, p1159
Frequency tuning, temporal response pattern and latency properties of inferior colliculus neurons were investigated in the big fruit-eating bat, Artibeus jamaicensis. Neurons having best frequencies between 48-72 kHz and between 24-32 kHz are overrepresented. The inferior colliculus neurons had...
- ECHOLOCATION CALLS, DIET, AND PHYLOGENETIC RELATIONSHIPS OF STOLICZKA'S TRIDENT BAT, ASELLISCUS STOLICZKANUS (HIPPOSIDERIDAE).
Gang Li; Bing Liang; Yinan Wang; Huabin Zhao; Helgen, Kristofer M.; Liangkong Lin; Jones, Gareth; Shuyi Zhang // Journal of Mammalogy; Jun2007, Vol. 88 Issue 3, p736
The comparative biology of the hipposiderid genus Aselliscus has been little studied. Here we report studies of echolocation, diet, and phylogeny of Aselliscus stoliczkanus. The phylogenetic relationships of Aselliscus were investigated based on sequence comparisons of mitochondrial cytochrome-b...
- For years, people wondered.
Gang Li; Bing Liang; Yinan Wang; Huabin Zhao; Helgen, Kristofer M.; Liangkong Lin; Jones, Gareth; Shuyi Zhang // Zoobooks; Oct2008, Vol. 26 Issue 1, p12
The article focuses on the echolocation system of the bats which allows them to fly and hunt for food at night. It explores the hunting scheme of the bats, wherein they sends out a series of ultrasonic pulses to detect the exact location of the insect. It highlights the precise echolocation...
- Phase sensitivity in bat sonar revisited.
Sch�rnich, Sven; Wiegrebe, Lutz // Journal of Comparative Physiology A: Neuroethology, Sensory, Neu; Jan2008, Vol. 194 Issue 1, p61
An echolocating bat produces echoes consisting of the convolution of echolocation call and the impulse response (IR) of the ensonified object. A crucial question in animal sonar is whether bats are able to extract this IR from the echo. The bat inner ear generates a frequency representation of...
- DID YOU HEAR THAT?
Schonauer, Erin K.; Schonauer, Jamie C. // Appleseeds; Jan2013, Vol. 16 Issue 1, p12
The article offers information on echolocation by bats and dolphins. It states that bats use their larynx, or voice box, to produce high-frequency sounds, which echos around 340 meters per second. The sound waves bounce off an object or prey and reflect back in echoes. It mentions that dolphins...
- Echolocation signals of the bat Eptesicus serotinus recorded using a vertical microphone array: effect of flight altitude on searching signals.
Jensen, Marianne Egebjerg; Miller, L. A. // Behavioral Ecology & Sociobiology; Dec1999, Vol. 47 Issue 1/2, p60
The acoustic behaviour of Eptesicus serotinus was investigated in the field using a 13.5-m vertical, linear microphone array that allowed for simultaneous recordings at three different heights and for the calculation of flight altitude and distance from the array. Recordings were made at two...
- Natterer�s bat ( Myotis nattereri Kuhl, 1818) hawks for prey close to vegetation using echolocation signals of very broad bandwidth.
Siemers, B. M.; Schnitzler, H. -U. // Behavioral Ecology & Sociobiology; May2000, Vol. 47 Issue 6, p400
We present a hitherto unknown prey perception strategy in bats: Myotis nattereri (Vespertilionidae, Chiroptera) is able to perceive prey by echolocation within a few centimeters of echo-cluttering vegetation, by using frequency-modulated search signals of very large bandwidth (up to 135 kHz). We...
- Metabolic costs of bat echolocation in a on-foraging context support a role in communication.
Dechmann, Dina K. N.; Wikelski, Martin; van Noordwijk, Hendrika J.; Voigt, Christian C.; Voigt-Heucke, Silke L. // Frontiers in Physiology; Mar2013, p1
The exploitation of information is a key adaptive behaviour of social animals, and many animals produce costly signals to communicate with conspecifics. In contrast, bats produce ultrasound for auto-communication, i.e., they emit ultrasound calls and behave in response to the received echo....
- Echolocation calls and communication calls are controlled differentially in the brainstem of the bat Phyllostomus discolor.
Fenzl, Thomas; Schuller, Gerd // BMC Biology; 2005, Vol. 3, p1
Background: Echolocating bats emit vocalizations that can be classified either as echolocation calls or communication calls. Neural control of both types of calls must govern the same pool of motoneurons responsible for vocalizations. Electrical microstimulation in the periaqueductal gray matter...
- The relationship between echolocation-call frequency and moth predation of a tropical bat fauna.
Pavey, C. R.; Burwell, C. J.; Milne, D. J. // Canadian Journal of Zoology; Mar2006, Vol. 84 Issue 3, p425
The allotonic frequency hypothesis proposes that the proportion of eared moths in the diet should be highest in bats whose echolocation calls are dominated by frequencies outside the optimum hearing range of moths i.e., <20 and >60 kHz. The hypothesis was tested on an ecologically diverse bat...
- Human vs. machine: identification of bat species from their echolocation calls by humans and by artificial neural networks.
Jennings, N.; Parsons, S.; Pocock, M. J. O. // Canadian Journal of Zoology; May2008, Vol. 86 Issue 5, p371
Automated remote ultrasound detectors allow large amounts of data on bat presence and activity to be collected. Processing of such data involves identifying bat species from their echolocation calls. Automated species identification has the potential to provide more consistent, predictable, and...
- Anti-bat flight activity in sound-producing versus silent moths.
Ratcliffe, John M.; Soutar, Amanda R.; Muma, Katherine E.; Guignion, Cassandra; Fullard, James H. // Canadian Journal of Zoology; Jun2008, Vol. 86 Issue 6, p582
The ultrasonic clicks produced by some tiger moths - all of which possess bat-detecting ears - are effective acoustic aposematic or mimetic signals, conferring protection against aerial hawking bats. Clicks are produced in response to bat echolocation calls. Palatable, silent non-tiger-moth...
- Influence of weather on two insectivorous bats in a temperate Pacific Northwest rainforest.
Burles, D. W.; Brigham, R. M.; Ring, R. A.; Reimchen, T. E. // Canadian Journal of Zoology; Feb2009, Vol. 87 Issue 2, p132
Adverse weather conditions frequently have a significant negative influence on survival and reproductive success of insectivorous bats. Low ambient temperatures increase the energetic costs of maintaining euthermia and reduces insect activity, while precipitation likely adds "clutter" making...
- White-winged vampire bats (Diaemus youngi) exchange contact calls.
Carter, G. G.; Fenton, M. B.; Faure, P. A. // Canadian Journal of Zoology; Jul2009, Vol. 87 Issue 7, p604
Temporally precise vocal exchanges, termed �antiphonal calling�, might allow pair or group members to maintain social contact with greater efficiency than when calling independently. The white-winged vampire bat (Diaemus youngi (Jentink, 1893)) is a group-living species that produces social...