Vocalizations emitted during mother-young interactions by captive eastern red bats Lasiurus borealis (Chiroptera: Vespertilionidae)

Schmidt-French, Barbara A.; Gillam, Erin H.; Fenton, M. Brock

doi:10.3161/1733-5329(2006)8[477:vedmib]2.0.co;2

Cited by 11 publications

(6 citation statements)

References 29 publications

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“…In other bat species, several social vocalizations are known to mediate approach behavior. These include the sounds of other bats foraging, pup isolation calls (Schmidt-French et al 2006), and vocal displays (e.g., "songs") of males (Fenton 1985). Responses of BLA neurons to the remainder of the communication sounds in our stimulus set may reflect their participation in a diverse set of efferent pathways, which may include appetitive behavior and anticipation of reward (Paton et al 2006;Schoenbaum et al 1999; Sugase-Miyamoto and Richmond 2005; Tye and Janak 2007).…”

Section: Discussionmentioning

confidence: 99%

Basolateral amygdala responds robustly to social calls: spiking characteristics of single unit activity

Naumann

Kanwal

2011

Journal of Neurophysiology

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Vocalizations emitted within a social context can trigger call-specific changes in the emotional and physiological/autonomic state of the receiver. The amygdala is implicated in mediating these changes, but its role in call perception remains relatively unexplored. We examined call and pitch selectivity of single neurons within the basolateral amygdala (BLA) by recording spiking activity in response to 5 pitch variants of each of 14 species-specific calls presented to awake, head-restrained mustached bats, Pteronotus parnellii. A response-wise analysis across neurons revealed seven types of temporal response patterns based on the timing and duration of spiking. Roughly half of the responses to different call types were significantly affected by changes in call pitch. A neuron-wise analysis revealed that ∼ 12% (8/69) of the neurons preferred the same pitch across all call types. Ninety-three percent (93/100) of neurons were excited by at least one call type and 76% exhibited either complete or transient suppression to one or more call types. The majority of neurons preferred fewer than half of the 14 different simple-syllabic calls. A call-wise analysis of spiking activity revealed that call types signaling either threat or fear most consistently evoked increases in the spike rate. In contrast, calls emitted during appeasement tended to evoke spike suppression. Our data suggest that BLA neurons participate in the processing of multiple call types and exhibit a rich variety of temporal response patterns that are neither neuron nor call specific.

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Section: Discussionmentioning

confidence: 99%

Basolateral amygdala responds robustly to social calls: spiking characteristics of single unit activity

Naumann

Kanwal

2011

Journal of Neurophysiology

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“…Pups start calling only a few minutes after birth and use i-calls at least until weaning (Knörnschild, von Helversen & Mayer, 2007;Carter et al, 2012). Such calls are multi-harmonic, their frequencies are lower than those of echolocation calls, and they are broadcast in stereotyped sequences (Gould, 1971) until the pup reunites with its mother (Schmidt-French, Gillam & Fenton, 2006).…”

Section: (D) Locating and Recognizing Dependent Youngmentioning

confidence: 99%

“…Isolation calls have been found to attract mothers both in natural (Watkins & Shump, 1981;Bohn, Wilkinson & Moss, 2007) and experimental settings (Matsumura, 1979;Balcombe, 1990;De Fanis & Jones, 1995;Schmidt-French et al, 2006;Bohn et al, 2007;Knörnschild, Feifel & Kalko, 2013). Call rates increase when pups are separated for longer periods (Matsumura, 1979;Mayberry & Faure, 2014) or their body temperature decreases (Camaclang, Hollis & Barclay, 2006), probably encoding the pup's status or motivation and thus altering the mother's response (Camaclang et al, 2006).…”

Section: (D) Locating and Recognizing Dependent Youngmentioning

confidence: 99%

Social communication in bats

2018

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Bats represent one of the most diverse mammalian orders, not only in terms of species numbers, but also in their ecology and life histories. Many species are known to use ephemeral and/or unpredictable resources that require substantial investment to find and defend, and also engage in social interactions, thus requiring significant levels of social coordination. To accomplish these tasks, bats must be able to communicate; there is now substantial evidence that demonstrates the complexity of bat communication and the varied ways in which bats solve some of the problems associated with their unique life histories. However, while the study of communication in bats is rapidly growing, it still lags behind other taxa. Here we provide a comprehensive overview of communication in bats, from the reasons why they communicate to the diversity and application of different signal modalities. The most widespread form of communication is the transmission of a signaller's characteristics, such as species identity, sex, individual identity, group membership, social status and body condition, and because many species of bats can rely little on vision due to their nocturnal lifestyles, it is assumed that sound and olfaction are particularly important signalling modes. For example, research suggests that secretions from specialized glands, often in combination with urine and saliva, are responsible for species recognition in several species. These olfactory signals may also convey information about sex and colony membership. Olfaction may be used in combination with sound, particularly in species that emit constant frequency (CF) echolocation calls, to recognize conspecifics from heterospecifics, yet their simple structure and high frequency do not allow much information of individual identity to be conveyed over long distances. By contrast, social calls may encode a larger number of cues of individual identity, and their lower frequencies increase their range of detection. Social calls are also known to deter predators, repel competitors from foraging patches, attract group mates to roost sites, coordinate foraging activities, and are used during courtship. In addition to sound, visual displays such as wing flapping or hovering may be used during courtship, and swarming around roost sites may serve as a visual cue of roost location. However, visual communication in bats still remains a poorly studied signal modality. Finally, the most common form of tactile communication known in bats is social grooming, which may be used to signal reproductive condition, but also to facilitate and strengthen cooperative interactions. Overall, this review demonstrates the rapid advances made in the study of bat social communication during recent years, and also identifies topics that require further study, particularly those that may allow us to understand adaptation to rapidly changing environmental conditions.

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“…These calls have different syllable distributions: Questioning clicks were emitted randomly, anticipation clicks were emitted singly, and nose-rubbing calls were always emitted in distinctive groups. Interestingly, temporal emission patterns are also important in sperm whales ͑Weilgart and Whitehead, 1997͒, one of the only mammals other than bats ͑Schmidt- French et al, 2006͒ that use clicks for social communication. Sperm whales emit codas, which are highly stereotyped series of clicks ͑Rendell and Whitehead, 2005͒.…”

Section: Temporal Patternsmentioning

confidence: 99%

Syllable acoustics, temporal patterns, and call composition vary with behavioral context in Mexican free-tailed bats

Bohn

Schmidt-French

Sean

et al. 2008

The Journal of the Acoustical Society of America

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122

124

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Recent research has shown that some bat species have rich vocal repertoires with diverse syllable acoustics. Few studies, however, have compared vocalizations across different behavioral contexts or examined the temporal emission patterns of vocalizations. In this paper, a comprehensive examination of the vocal repertoire of Mexican free-tailed bats, T. brasiliensis, is presented. Syllable acoustics and temporal emission patterns for 16 types of vocalizations including courtship song revealed three main findings. First, although in some cases syllables are unique to specific calls, other syllables are shared among different calls. Second, entire calls associated with one behavior can be embedded into more complex vocalizations used in entirely different behavioral contexts. Third, when different calls are composed of similar syllables, distinctive temporal emission patterns may facilitate call recognition. These results indicate that syllable acoustics alone do not likely provide enough information for call recognition; rather, the acoustic context and temporal emission patterns of vocalizations may affect meaning.

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Vocalizations emitted during mother-young interactions by captive eastern red bats Lasiurus borealis (Chiroptera: Vespertilionidae)

Cited by 11 publications

References 29 publications

Basolateral amygdala responds robustly to social calls: spiking characteristics of single unit activity

Basolateral amygdala responds robustly to social calls: spiking characteristics of single unit activity

Social communication in bats

Syllable acoustics, temporal patterns, and call composition vary with behavioral context in Mexican free-tailed bats

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