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15 results for “calling behaviour”
Behavioural changes in aposematic Heliconius melpomene butterflies in response to their predatory bird calls
<p>Prey-predator interactions have resulted in the evolution of many anti-predatory traits. One of them is the ability of prey to listen to predators and avoid them. Although prey anti-predatory behavioural responses to predator auditory cues are well described in a wide range of taxa, studies on whether butterflies change their behaviours in response to their predatory calls are lacking. <em>Heliconius </em>butterflies are unpalatable and form Müllerian mimicry rings as morphological defence strategies against their avian predators. Like many other butterflies in the <em>Nymphalidae </em>family, some <em>Heliconius </em>butterflies possess auditory organs, which are hypothesized to assist with predator detection. Here we test whether <em>Heliconius melpomene </em>changes their behaviour in response to their predatory bird calls by observing the behaviour of male and female <em>H. m. plessini </em>exposed to calls of <em>Heliconius</em> avian predators: rufous-tailed jacamar, migratory Eastern kingbird, and resident tropical kingbird. We also exposed them to the calls of the toco toucan, a frugivorous bird as a control bird call, and an amplified greenhouse background noise as a noise control. We found that individuals<em> </em>changed their behaviour in response to Jacamar calls only. Males increased their walking and fluttering behaviour, while females did not change their behaviour during the playback of the jacamar call. Intersexual behaviours like courtship, copulation, and abdomen lifting did not change in response to bird calls. Our findings suggest that despite having primary predatory defences like toxicity and being in a mimicry ring, <em>H. m. plessini </em>butterflies changed their behaviour in response to predator calls. Furthermore, this response was predator-specific, as <em>H. m. plesseni</em> did not respond to either the Eastern kingbird or the tropic kingbird calls. This suggests that <em>Heliconius</em> butterflies may be able to differentiate predatory calls, and potentially the birds associated with those calls.</p>
Data from: The risk perception and response of Azure-winged magpies: On the aspect of feeding behaviour and alarm calls
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Behavioural context of call production in humpback whale calves: Identification of potential begging calls in a Mysticete species
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Behavioural changes in aposematic Heliconius melpomene butterflies in response to their predatory bird calls
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Figure 3 in Elucidating the diel and seasonal calling behaviour of Elachistocleis matogrosso (Anura: Microhylidae)
Figure 3. Estimated probability of detecting the presence of Elachistocleis matogrosso during (a) January and (b) February. Calculations were based on logistic regression, with the detection/lack of detection of the species at the seven monitored sites as the dependent variable and the date as the predictor variable. Dashed lines show the 95% probability of detecting the species.
Figure 1 in Elucidating the diel and seasonal calling behaviour of Elachistocleis matogrosso (Anura: Microhylidae)
Figure 1. Diel pattern of Elachistocleis matogrosso calling activity during an entire year in the Pantanal Matogrossense, Brazil. Calling activity was detected with acoustic monitoring from 15 November of 2013 to 14 November 2014 at one site (a, Table 1) and from 8 June 2015 to 2 June 2016 at six other sites (b–g, Table 1). The diel pattern is expressed as the mean percentage of calls detected at all sites at each recording time. The hours are expressed in 24-h notation of the winter local time (GMT −4).
Figure 2 in Elucidating the diel and seasonal calling behaviour of Elachistocleis matogrosso (Anura: Microhylidae)
Figure 2. Seasonal pattern of Elachistocleis matogrosso calling activity during two entire years in the Pantanal Matogrossense, Brazil. Calling activity was detected with acoustic monitoring from 15 November of 2013 to 14 November 2014 at one site (a, Table 1) and from 8 June 2015 to 2 June 2016 at six other sites (b–g, Table 1). The seasonal pattern is expressed as the percentage of calls detected per month (2013–2014) or as the mean percentage of calls detected at all sites per month (2015–2016).
Phone Call Follow-up After Crisis Centre Presentation With Suicidal Ideation and Behaviours.
ClinicalTrials.gov study NCT03444935. IPD Sharing: NO. Countries: 1. Publications: 9.
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: Spatio-temporal dynamics of field cricket calling behaviour: implications for female mate search and mate choice
Amount of calling activity (calling effort) is a strong determinant of male mating success in species such as orthopterans and anurans that use acoustic communication in the context of mating behaviour. While many studies in crickets have investigated the determinants of calling effort, patterns of variability in male calling effort in natural choruses remain largely unexplored. Within-individual variability in calling activity across multiple nights of calling can influence female mate search and mate choice strategies. Moreover, calling site fidelity across multiple nights of calling can also affect the female mate sampling strategy. We therefore investigated the spatio-temporal dynamics of acoustic signaling behaviour in a wild population of the field cricket species Plebeiogryllus guttiventris. We first studied the consistency of calling activity by quantifying variation in male calling effort across multiple nights of calling using repeatability analysis. Callers were inconsistent in their calling effort across nights and did not optimize nightly calling effort to increase their total number of nights spent calling. We also estimated calling site fidelity of males across multiple nights by quantifying movement of callers. Callers frequently changed their calling sites across calling nights with substantial displacement but without any significant directionality. Finally, we investigated trade-offs between within-night calling effort and energetically expensive calling song features such as call intensity and chirp rate. Calling effort was not correlated with any of the calling song features, suggesting that energetically expensive song features do not constrain male calling effort. The two key features of signaling behaviour, calling effort and call intensity, which determine the duration and spatial coverage of the sexual signal, are therefore uncorrelated and function independently.
Data from: Variation in chick-a-dee call sequences, not in the fine structure of chick-a-dee calls, influences mobbing behaviour in mixed-species flocks
When animals vocalize under the threat of predation, variation in the structure of calls can play a vital role in survival. The chick-a-dee calls of chickadees and titmice provide a model system for studying communication in such contexts. In previous studies, birds' responses to chick-a-dee calls covaried with call structure, but also with unmeasured and correlated parameters of the calling sequence, including duty cycle (the proportion of the calling sequence when a signal was present). In this study, we exposed flocks of Black-capped Chickadees (Poecile atricapillus) and heterospecific birds to playback of chick-a-dee calls and taxidermic models of predators. We quantified birds' responses to variation in number of D-notes and duty cycle of the signalling sequence. Chickadees and heterospecific birds responded more intensely to high-duty-cycle treatments, and equally to treatments where duty cycle was held constant and the number of D-notes varied. Although our study does not disentangle the effects of call rate and duty cycle, it is the first to investigate independently the behavioural responses of birds to variation in structural and sequence-level parameters of the chick-a-dee call during a predator confrontation. Critically, our results confirm that the pattern previously observed in a feeding context holds true in a mobbing context: variation in calling sequences, not in call structure, is the salient acoustic feature of chick-a-dee calls. These results call into question the idea that chick-a-dee call structure carries allometric information about predator size, suggesting instead that sequence-level parameters play a central role in communication in a mobbing context.
Data from: Spatio-temporal dynamics of field cricket calling behaviour: implications for female mate search and mate choice
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Data from: Variation in chick-a-dee call sequences, not in the fine structure of chick-a-dee calls, influences mobbing behaviour in mixed-species flocks
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Data from: Nocturnal flight-calling behaviour predicts vulnerability to artificial light in migratory birds
Understanding interactions between biota and the built environment is increasingly important as human modification of the landscape expands in extent and intensity. For migratory birds, collisions with lighted structures are a major cause of mortality, but the mechanisms behind these collisions are poorly understood. Using 40 years of collision records of passerine birds, we investigated the importance of species' behavioral ecologies in predicting rates of building collisions during nocturnal migration through Chicago, IL and Cleveland, OH, USA. We found that use of nocturnal flight calls is an important predictor of collision risk in nocturnally migrating passerine birds. Species that produce flight calls during nocturnal migration collided with buildings more than expected given their local abundance, whereas those that do not use such communication collided much less frequently. Our results suggest that a stronger attraction response to artificial light at night in species that produce flight calls may mediate these differences in collision rates. Nocturnal flight calls likely evolved to facilitate collective decision-making during navigation, but this same social behavior may now exacerbate vulnerability to a widespread anthropogenic disturbance. Our results also suggest that social behavior during migration may reflect poorly-understood differences in navigational mechanisms across lineages of birds.
Data from: Nocturnal flight-calling behaviour predicts vulnerability to artificial light in migratory birds
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.