Fishing and echolocation behavior of the greater bulldog bat, Noctilio leporinus, in the field

@article{Schnitzler2004FishingAE,
  title={Fishing and echolocation behavior of the greater bulldog bat, Noctilio leporinus, in the field},
  author={Hans-Ulrich Schnitzler and Elisabeth Klara Viktoria Kalko and Ingrid Kaipf and Alan D. Grinnell},
  journal={Behavioral Ecology and Sociobiology},
  year={2004},
  volume={35},
  pages={327-345}
}
When hunting for fish Noctilio leporinus uses several strategies. In high search flight it flies within 20–50 cm of the water surface and emits groups of two to four echolocation signals, always containing at least one pure constant frequency (CF) pulse and one mixed CF-FM pulse consisting of a CF component which is followed by a frequency-modulated (FM) component. The pure CF signals are the longest, with an average duration of 13.3 ms and a maximum of 17 ms. The CF component of the CF-FM… 
Fine-tuned echolocation and capture-flight of Myotis capaccinii when facing different-sized insect and fish prey
TLDR
This study shows that M. capaccinii can regulate the temporal components of its feeding buzzes and modify prey capture technique according to the target, suggesting that lengthening buzz I and shortening buzz II when fishing is beneficial, probably because buzz I gives better discrimination ability and the broader sonar beam provided by buzz II is useless when no evasive flight of the prey is expected.
Fishing behaviour in the long-fingered bat Myotis capaccinii (Bonaparte, 1837): an experimental approach
TLDR
A scenario in which fishing behaviour occurs in the wild, linked to the seasonal drought of small ponds, marshes, or channels where large numbers of small fish become readily available and thus a profitable resource is proposed.
Hunting strategy and tympanate moth predation by the pond bat (Myotis dasycneme)
TLDR
It is assumed that this discontinuous echolocation pattern facilitates the bats in successfully approaching tympanate moths by delaying or counteracting the moths ability to identify bats from a distance.
Specializations for aerial hawking in the echolocation system of Molossus molossus (Molossidae, Chiroptera)
TLDR
Frequency alternation of search calls is interpreted as a mechanism for increasing duty cycle and thus the temporal continuity of scanning, as well as increasing the detection range.
Prey‐Correlated Spectral Changes in Echolocation Sounds of the Indian False Vampire Megaderma lyra
TLDR
This is the first report of target-correlated transient adaptations in echolocation calls of any bat species and showed little variation between the three experimental animals and were reproducible over time.
Differentiating the echolocation calls of Daubenton's bats, pond bats and long-fingered bats in natural flight conditions
TLDR
Echolocation calls of the three European species of trawling bats were studied in their natural habitats, during hunting, commuting and swarming activities, finding that long-fingered bats sometimes used pulse series with alternating end frequencies.
The potential function of individual signal frequency for masking avoidance in the greater bulldog bat Noctilio leporinus
TLDR
Modifications of signal parameters and foraging behavior as strategies to avoid masking situations in N. leporinus are discussed.
ACOUSTIC IDENTIFICATION OF Nycticeius cubanus (Gundlach, 1867) AND Eptesicus fuscus dutertreus (Gervais, 1837) (Chiroptera: Vespertilionidae) IN WESTERN CUBA
TLDR
Differences in calls between the species support the possibility of an unequivocally acoustic identification of N. cubanus and E. dutertreus in the field and the final frequency was the most determinant parameter to the total acoustic discrimination between species.
Sensory challenges for trawling bats: Finding transient prey on water surfaces.
TLDR
Measurements of a transient target consisting of a brief water splash and subsequently expanding water ripples revealed that concentrically expandingWater ripples can provide sufficiently loud echoes to be detected by trawling bats.
Echolocation call intensity in the aerial hawking bat Eptesicus bottae (Vespertilionidae) studied using stereo videogrammetry
TLDR
A novel stereo videogrammetry method used to study flight and echolocation behaviour, and to measure call source levels of the aerial hawking bat Eptesicus bottae (Vespertilionidae).
...
...

References

SHOWING 1-10 OF 66 REFERENCES
The echolocation and hunting behavior of the bat,Pipistrellus kuhli
TLDR
The echolocation and hunting behavior of Pipistrellus kuhli was studied in the field using multi-exposure photography synchronized with high-speed tape recordings to argue that the minimum detection distance can be estimated from the pulse duration as the distance where pulse-echo overlap is avoided.
The acoustic behavior of the fish‐catching bat, Noctilio leporinus, during prey capture
TLDR
This study has shown that during the last 1.5 m of the approach, N. leporinus selectively reduces the intensity of emitted pulses by 6 dB per halving of distance, so that the intensity incident upon the target is constant.
Echolocation of moving targets by the fish-catching bat,Noctilio leporinus
TLDR
It is concluded that Doppler information is not used to make velocity measurements, and target velocity discrimination must instead be based upon range-rate information obtained from the wide band FM component of the sonar pulse.
Auditory sensitivity in the fish-catching bat,Noctilio leporinus
  • J. Wenstrup
  • Physics
    Journal of Comparative Physiology A
  • 2004
SummaryBehavioral and auditory brainstem response (ABR) audiograms are described for the fish-catching bat,Noctilio leporinus, which uses short constant frequency/frequency modulated (short-CF/FM)
Comparative echolocation by fishing bats.
  • R. Suthers
  • Environmental Science
    Journal of mammalogy
  • 1967
TLDR
The acoustic orientation of two species of fish-catching bats was studied as they negotiated a row of strings or fine wires extending across their flight path, suggesting the latter species may have a longer effective range of echolocation.
Echolocation, development, and vocal communication in the lesser bulldog bat, Noctilio albiventris
SummaryForaging and echolocation behavior and its ontogeny in the lesser bulldog bat, Noctilio albiventris, were studied in Panama under field and captive conditions. The vocalizations utilized for
The echolocation and hunting behavior of Daubenton's bat, Myotis daubentoni
TLDR
The echolocation and hunting behavior of Daubenton's bat (Myotis daubentoni) was studied in the field under completely natural conditions using a multiflash photographic system synchronized with high-speed tape recordings to corroborate the hypothesis that the minimum detection distance can be estimated from the sound duration during search flight.
A Time Window for Distance Information Processing in the Bats, Noctilio Albiventris and Rhinolophus Rouxi
TLDR
Experiments are described that demonstrate which structural elements of complex CF/FM echolocation sounds code target distance information and provide a mechanism regarding hcw this information is processed by the nervous system.
ACOUSTIC ORIENTATION BY FISH-CATCHING BATS.
  • R. Suthers
  • Environmental Science
    The Journal of experimental zoology
  • 1965
Captive Noctilio leporinus were unable to detect pieces of fish tissue or small air-filled balloons mounted a few millimeters below the surface of the water. An up-welling of water and small wires
...
...