Elsevier eBooks, Journal Year: 2021, Volume and Issue: unknown, P. 59 - 79
Published: Jan. 1, 2021
Language: Английский
Environmental Pollution, Journal Year: 2022, Volume and Issue: 308, P. 119680 - 119680
Published: July 1, 2022
Language: Английский
Citations
8
Behavioral Ecology and Sociobiology, Journal Year: 2023, Volume and Issue: 77(7)
Published: June 30, 2023
Abstract To ensure effective acoustic communication, signals should reach receivers in the least distorted form possible. Animals use various short- and long-term strategies to avoid signal degradation masking. However, we still have an insufficient understanding of how animals’ vocal behaviour is impacted by vocalisations other animals their communities. We experimentally examined two tropical, sedentary, territorial songbirds Western Uganda—the scaly-breasted illadopsis ( Illadopsis albipectus ) green-backed camaroptera Camaroptera brachyura )—modify singing after simulated appearance new, unfamiliar competitors, whose songs vary similarity those species studied. found that sang significantly less during playback acoustically similar than different or silence avoided song overlapping with but not species. Green-backed more both intruders control containing silence, patterns overlap were random. Our results show even a single-point noise source present within territory can modify bird’s behaviour. The new sound may affect differently, depending part on level species’ song. mitigate effect masking, strategies, such as temporal avoidance redundancy. Studies examining adaptive abilities natural modified habitats are needed predict consequences changes community structure. Significance statement birds masking common space, particularly complex environment tropical forest. While multiple studies focused responses interference caused anthropogenic noise, individual structure has received little attention. intrusions levels into territories songbird birds’ behaviour, study responded differently. These suggest similarity, well ecology, response, which be important when predicting effects result habitat climate.
Language: Английский
Citations
4
Behavioral Ecology, Journal Year: 2024, Volume and Issue: 35(1)
Published: Jan. 1, 2024
Abstract Vocalization is the main form of communication in many animals, including frogs, which commonly emit advertisement calls to attract females and maintain spacing. In noisy environments such as streams, mechanisms maximize signaling efficiency may include vocal plasticity and/or movement individuals quieter sections, but strategy used still uncertain. We investigated influence stream geophony on call torrent frog Hylodes perere Atlantic Rainforest, southeastern Brazil. a mark-recapture study, we tested if males remain their territories thus adjust communication. ran linear mixed models verify relationship parameters geophony, body size, environmental temperature. found that remained same location across time, increased intensity noisier environments, did not reduce effort. Males also dominant frequency these situations, suggesting modulation this parameter. Our results indicate territoriality an important factor for increase surpass noise instead repositioning along stream. However, because effort was maintained, suggest sexual selection crucial system, favoring better detect others efficiency. This first study evaluate simultaneously movements adaptations contributes investigation concomitant selective pressures species communicate environments.
Language: Английский
Citations
1
Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(8)
Published: Aug. 1, 2024
Abstract Acoustic communication in animals can be affected by multiple biotic (intra and interspecific) abiotic (e.g., wind rain) natural noises. In addition, human beings produce additional novel sources of noise, which reduce or inhibit the reception acoustic signals conspecifics, leading to behavioral changes. this study, we investigated whether sound conspecifics road noise additively affect parameters advertisement call males a Yellow Heart‐tongued Frog ( Phyllodytes luteolus ). We hypothesized that vocalize choruses (males calling nearby) areas close highways (anthropic noise) will increase their temporal spectral parameters, respectively, avoid signal masking. recorded vocalizations 38 environments N = 18) distant 20) from different social contexts (many few individuals nearby). Contrary our expectation, results indicated had lower dominant frequency calls than those (far highways), density chorus no influence on parameters. Furthermore, found positive relationship between body size intensity, indicating larger emit reach greater distances. The has high frequency, with little overlap anthropic noises (roads), may explain its presence reproductive success species bromeliads urbanized areas.
Language: Английский
Citations
1
BMC Ecology and Evolution, Journal Year: 2024, Volume and Issue: 24(1)
Published: Oct. 12, 2024
Some snakes emit hissing calls which are imitated by birds to deter potential predators. However, the effect of these snake and bird hisses on anuran risk recognition is not yet explored. Here we hypothesize that may advertise dangers frogs evoke their anti-predator responses. We used little torrent (Amolops torrentis) as subjects conducted sound playbacks test behaviors. found changed calling behaviors during sympatric hiss playbacks, but showed no response white noise allopatric playbacks. They did respond avian has low acoustic similarity with sounds. they decreased activity in high snakes. As compared other treatments, more individuals ceased highly similar hiss. These results suggest recognize risks from snake-like perform
Language: Английский
Citations
1
Frontiers in Zoology, Journal Year: 2021, Volume and Issue: 18(1)
Published: Aug. 4, 2021
Abstract Background The acoustic adaptation hypothesis (AAH) states that signals should evolve towards an optimal transmission of the intended information from senders to receivers given environmental constraints medium they traverse. To date, most AAH studies have focused on effect stratified vegetation signal propagation. These studies, based AAH, predict experience less attenuation and degradation where habitats are acoustically complex. Here, we explored this by including noise dimension test some predictions in two clades widespread amphibians (Bufonidae Ranidae) actively use for communication. By using data 106 species these clades, characterization differences dominant frequency (DF) contour (i.e., modulation [FM] harmonic performances) mating calls compared them between inhabit flowing-water or still-water environments. Results After temperature, body size, habitat type phylogenetic relationships, found DF among were explained mostly size structure. We also showed living lentic tend advertisement characterized well-defined FM harmonics. Likewise, our results suggest can constrain evolutionary trajectories frequency-contour traits anurans. Conclusions Our may support frogs vocalize noisy because environments often produce persistent ambient noise. For instance, anurans generate vocalizations with traits. findings help us understand how environment influence natural selection as it shapes affected species.
Language: Английский
Citations
10
Bioacoustics, Journal Year: 2019, Volume and Issue: 29(6), P. 684 - 696
Published: Sept. 13, 2019
Temperature fluctuation affects physiology and behaviour in ectotherms. Previous studies revealed that the phonotactic preference of female frogs was affected by temperature fluctuations; however, corresponding plasticity peripheral auditory sensitivity is unclear. In present study, little torrent (Amolops torrentis) tested brainstem responses (ABRs) both natural warm cold conditions. The threshold latency ABRs evoked tone pips ranging from 1.0–7.0 kHz clicks were compared between these two results showed ABR thresholds higher latencies longer at to those temperatures for relatively low frequencies (1.8–2.6 kHz), while no significant differences existed high (3.0–7.0 kHz). Our previous study best hearing frequency range frog 1.6–2.0 kHz, whereas females behaviourally prefer (4.3 These indicate fluctuations habitats can change around (1.6–2.0 they do not affect female-preferred demonstrate exhibits diurnal temperature-dependent plastic changes, which may be adaptive reproductive this species.
Language: Английский
Citations
10
Behavioral Ecology and Sociobiology, Journal Year: 2020, Volume and Issue: 74(6)
Published: June 1, 2020
Abstract Most male frogs produce calls to attract females and repel rivals. The transmission of these can be affected by many acoustic environmental characteristics, which influence the detection decoding signal receiver. Calling-perch height has a strong on sound propagation spacing with neighboring males, but how optimize their calling behavior in this context is poorly understood. In study, we investigated if adjust energy spacing. Our aim was evaluate relationship between calling-perch height, nearest-neighbor distance, sound-pressure level brilliant-thighed poison frog Allobates femoralis . We found that flexibly amplitude according without affecting effectiveness propagation. Accompanying experiments demonstrated produced lower from higher perches propagate similar louder ground. results suggest an adjustment hypothesis general positive effect effectiveness, where highly territorial reduce expenditure communication conspecifics. Significance statement acoustically communicating species, propagates better when broadcasted elevated positions. However, callers may under ecological constraints. By using correlative manipulative approach, show model males height. then discuss optimizes conspecific reduces consumption.
Language: Английский
Citations
10
Ethology, Journal Year: 2020, Volume and Issue: 126(5), P. 576 - 583
Published: Jan. 27, 2020
Abstract Acoustic noise from automobile traffic impedes communication between signaling animals. To overcome the acoustic interference imposed by anthropogenic noise, species across taxa adjust their behavior to increase signal saliency. As most of spectral energy is concentrated at low frequencies, with lower frequency signals are expected be more affected. Thus, low‐frequency under stronger pressure behaviors avoid auditory masking than higher signals. Similarly, for a multiple types that differ in characteristics, different differentially masked. We investigate how call Japanese stream breeding treefrog ( Buergeria japonica ) affected noise. Male B. produce two elements, Type I dominant and II frequency. In response playbacks reduced duration calls, but not calls. addition, increased effort calls decreased This result contrasts prior studies other taxa, which suggest signalers may switch Furthermore, was only short‐term while persisted after had ended. Overall, such differential effects on some social functions will disrupted others. By considering types, these results provide in‐depth understanding behavioral impacts within species.
Language: Английский
Citations
9
eLife, Journal Year: 2022, Volume and Issue: 11
Published: May 4, 2022
Many animals rely on complex signals that target multiple senses to attract mates and repel rivals. These multimodal displays can however also unintended receivers, which be an important driver of signal complexity. Despite being taxonomically widespread, we often lack insight into how evolve from unimodal in particular what roles eavesdroppers play. Here, assess whether the physical movements parasite defense behavior increase complexity attractiveness acoustic sexual little torrent frog (Amolops torrentis). Calling males this species display limb order defend against blood-sucking parasites such as frog-biting midges eavesdrop their signal. Through mate choice tests show some these midge-evoked influence female preference for signals. Our data suggest midge-induced may incorporated a display, targeting both hearing vision intended receiver. Females play role incorporating components because they prefer combine modalities. results thus help understand relationship between natural selection pressure operating signalers turn evolution.
Language: Английский
Citations
6