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99 results for “frog calls”
Figure 4 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)
Figure 4. Oscillogram, spectrogram, and power spectrum for the advertisement call of Andinobates daleswansoni. Male body size: 23.7 mm, temperature of calling male: 17.1°C, voucher at the Colección de Anfibios y Reptiles of the Biology programme at the Universidad del Quindío, Armenia, Colombia: ARUQ-768. Voucher at Colección de Sonidos Ambientales of the Instituto Alexander von Humboldt, Villa de Leyva, Boyacá, Colombia IAvH–CSA-18535. Ilustration by Dina Lucía Rivera-Robles.
Figure 3 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)
Figure 3. Oscillogram showing temporal call features calculated in this study for the description of the advertisement call of the poison frog A. daleswansoni.
Figure 1 in Advertisement call, tadpole morphology, and other natural history aspects of the threatened poison frog Andinobates daleswansoni (Dendrobatidae)
Figure 1. Image of a calling male of Andinobates dalewansoni in the study area. Individual not collected.
Figure 1 in The advertisement call and tadpole of the Ambangulu Puddle Frog (Phrynobatrachus ambanguluensis) (Anura: Phrynobatrachidae) from Tanzania
Figure 1. Left – Male Phrynobatrachus ambanguluensis to show yellow throat. Right – Irrigation ditch where adults and tadpoles were collected, Mazumbai Forest Reserve.
FIG. 3 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 3.—Regressions between (a) elevation and average male mass, (b) average male mass and note length residuals, (c) average male mass and pulse rate residuals, and (d) average male mass and dominant frequency residuals of Ranitomeŋa imitator. Individual dots represent population averages.
FIG. 2 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 2.—Clines in advertisement call parameters across three mimetic transition zones of Ranitomeŋa imitator. (a) Banded-striped transition zone, (b) spotted-striped transition zone, (c) striped-varadero transition zone. In all panels, call parameter values for individual R. imitator (represented by dots) are plotted along the sampling transect (x-axis). For all panels, the fit line represents the best-supported model according to the AICc (see Table 2).
FIG. 1 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 1.—Advertisement calls of Ranitomeŋa imitator, showing waveforms (above) and spectrograms (below). (a) varadero morph, recording locality Varadero Forest 1, recorded at 27°C (note length = 0.983 s, pulse rate = 37.6 pulses/s, dominant frequency = 5059 Hz); (b) striped morph, recording locality Varadero South Bank, recorded at 26°C (note length = 0.692 s, pulse rate = 34.7 pulses/s, dominant frequency = 5668 Hz); (c) banded morph, recording locality Sauce, recorded at 26°C (note length = 1.044 s, pulse rate = 28.7 pulses/s, dominant frequency = 5003 Hz); (d) spotted morph, recording locality San Jose, recorded at 22°C (note length = 0.777 s, pulse rate = 33.5 pulses/s, dominant frequency = 5194 Hz). The nearly ubiquitous noise occurring at 7 kHz in all recordings is background noise caused by calling insects.
Figure 3 in Quantification of underwater calling and foraging activities in the African clawed frog Xenopus laevis
Figure 3. Effects of moonlight intensity, along with lunar cycle, on A) Vocal activity, B) Foraging activity as estimated as the number of animals captured in food baited traps and C) sex ratio of captures (number of males/ total number of individuals), with points for observed values, and 95% confidence interval around the mean estimated from the best model.
Figure 2 in Quantification of underwater calling and foraging activities in the African clawed frog Xenopus laevis
Figure 2. Variations of A) Vocal activity, B) Foraging activity as estimated as the number of animals captured in food baited traps and C) sex ratio of captures (number of males/ total number of individuals), during the study period, according to date and lunar cycle with points for observed values, and 95% confidence interval around the mean estimated from the best model.
Data from: Genetics, morphology, advertisement calls, and historical records distinguish six new polyploid species of African clawed frog (Xenopus, Pipidae) from West and Central Africa
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Female choice scores and Peak Frequency and Duration in calls from Wood frog chorus recordings
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Data from: Environmental constraints and call evolution in torrent dwelling frogs
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Allometric escape from acoustic constraints in frog calls is rare
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Data from: Neotropical frogs and mating songs: the evolution of advertisement calls in glassfrogs.
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Data from: Females prefer the calls of better fathers in a Neotropical frog with biparental care
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Data from: Geographic variation in advertisement calls of a Microhylid frog—testing the role of drift and ecology
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Data from: critical calls: circadian and seasonal periodicity in vocal activity in a breeding colony of Panamanian golden frogs (<em>Atelopus zeteki</em>)
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Data from: Impact of cane toads on a community of Australian native frogs, determined by 10 years of automated identification and logging of calling behaviour
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Data from: Neglecting the call of the wild: captive frogs like the sound of their own voice
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Multisensory integration facilitates perceptual restoration of an interrupted call in frog
<p>How to render an interrupted sound as a complete signal is a common challenge faced by human and non-human animals during vocal communication. Using video and audio playbacks, we showed that neither inserting white noise into the silent gap of an interrupted call nor displaying the dynamic inflating-deflating vocal sac in that same gap restored attraction of the call equivalent to that of a complete call. Simultaneously presenting a dynamic vocal sac along with white noise in the gap, however, rescued the interrupted call making it as attractive as a complete call. This suggests that the multisensory cue might have caused female frogs to "hear" the missing sound as happens when humans experience auditory induction. Regardless, such novel multisensory integration suggests that multimodal signals can provide insurance against imperfect sender coding in a noisy environment, and the communication benefits to the receiver from multisensory integration may be an important selective force favoring multimodal signal evolution.</p>
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