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opencc-zeroNov 2023View details →

Data from: Interactive bioacoustic playback as a tool for detecting and exploring nonhuman intelligence: "Conversing" with an Alaskan humpback whale

Here we report on a rare and opportunistic acoustic turn-taking with an adult female humpback whale, known as Twain, in Southeast Alaska. Post hoc acoustic and statistical analyses of a 20-minute acoustic exchange between the broadcast of a recorded contact call, known as a 'whup/throp', with call responses by Twain revealed an intentional human-whale acoustic (and behavioral) interaction. Our results show that Twain participated both physically and acoustically in three phases of interaction (Phase 1: Engagement, Phase 2: Agitation, Phase 3: Disengagement), independently determined by blind observers reporting on surface behavior and respiratory activity of the interacting whale. A close examination of both changes to the latency between Twain's calls and the temporal matching to the latency of the exemplar across phases indicated that Twain was actively engaged in the exchange during Phase 1 (Engagement), less so during Phase 2 (Agitation), and disengaged during Phase 3 (Disengagement). These results, while preliminary, point to several for effective playback design, namely the importance of salient, dynamic and adaptive playbacks, that should be utilized in experimentation with whales and other interactive nonhuman species.

opencc-zeroJan 2024View details →

Familiarity, homogeneity, and discrimination of song dialects: Data and playback study stimuli

Male songbirds of many species sing local song dialects that are restricted to defined geographical areas. In most tests of responses to local versus foreign dialects, males respond more aggressively to songs from their own dialect, presumably because local males represent more of a threat to their success. We asked how hearing foreign songs during development and territory establishment affects discrimination of the local dialect in wild Savannah sparrows, Passerculus sandwichensis. After foreign songs had been heard from loudspeakers in the study area in at least two consecutive breeding seasons, males reduced the intensity of their responses to the local version of population-specific buzz segment of the song. Four years after the foreign songs were last broadcast on the study area, males again responded more aggressively to the local version of the buzz. As for the basis of these responses, we found no evidence that birds discriminated among dialects by comparing them to their own songs. However, auditory experience with a foreign song, whether during song development (from speaker-simulated song tutors) or during the current breeding season (from neighbours' songs), reduced the intensity of birds' responses to the local buzz type. Both familiarity, in the form of auditory experience with a song type, and homogeneity, when a song type is sung by all or nearly all of the population, appear to contribute to heightened aggressive responses to a local song dialect.

opencc-by-4.0Jul 2024View details →

Code and data for "Comparing cost-effectiveness of radio and drone telemetry with playback surveys for assessing translocation outcomes"

Overview Code and data used for the analyses of Stone et al., 2024 "Comparing cost-effectiveness of radio and drone telemetry with playback surveys for assessing translocation outcomes". Forthcoming in Journal of Applied Ecology Abstract 1. Post-release monitoring is critical for assessing translocation outcomes. Yet the quality of information gained from monitoring can vary greatly, and perceived monitoring costs often results in reduced monitoring effort.  Selecting cost-effective monitoring strategies that provide high quality data is therefore important for assessing translocation outcomes and making informed management decisions.  2. To compare how monitoring strategy affects information gained, we monitored a toutouwai/North Island robin (Petroica longipes) reintroduction in Aotearoa New Zealand, based on monitoring objectives of determining survival, site fidelity and whether the extent of management was large enough to protect dispersing individuals. We compared how these objectives were met through four monitoring strategies: 1) comprehensive surveys with ground radio telemetry and playback; 2) aerial drone telemetry; 3) dedicated playback by trained surveyors and 4) opportunistic playback by predator control contractors. We undertook a viewshed analysis to determine search coverage of each strategy and compared detection rates, efficiency, and cost.  3. Comprehensive ground telemetry and playback, while costly, covered the largest area and provided the most accurate data on dispersal, survival and the translocation outcome.  In comparison, opportunistic playback monitoring detected substantially fewer individuals, giving a false impression of low site fidelity and survival and a failed translocation. Although drone telemetry had considerable site-specific limitations, which limited its effectiveness during our study, it was the most cost-effective with a high detection rate and low search effort.  4. Synthesis and applications: Our study shows the value of intensive monitoring in facilitating management decisions for wildlife translocations. Comprehensive telemetry and playback, while costly, were invaluable for gaining high quality information on the translocation outcome. Without suitable monitoring, reintroduction outcomes can be difficult to assess and potentially result in unnecessary, ineffective, or overly expensive management actions. We recommend that monitoring intensity and methodology should reflect the site, species and level of uncertainty regarding the translocation outcome. Prioritising monitoring can help reduce long-term costs, increase quality of information gained and allow for more informed management decisions that can improve subsequent translocation outcomes.

opencc-by-4.0Sep 2018View details →

Estimating effective detection area of static passive acoustic data loggers from playback experiments with cetacean vocalisations

This link provides the data from the playback experiment to determine effective detection areas for porpoises recorded by C-POD acoustic dataloggers. The firstdata set includes the artifically created porpoises click trains captured by the C-PODs and the second is the record of the rate of re-capture for the real, recorded porpoise clicks used in the experiment.

opencc-by-4.0Dec 2018View details →

Playbacks of Asian honey bee stop signals demonstrate referential inhibitory communication

Referential communication provides a sophisticated way in which animals can communicate information about their environment. Previously, research demonstrated that honey bee stop signals encode predator danger in their fundamental frequency and danger context in their duration. Here, we show that these signals also encode danger in their vibrational amplitude. Stop signals elicited by the more dangerous predator, the large hornet (Vespamandarinia) had significantly 1.5-fold higher vibrational amplitudes than those elicited by the small hornet predator (Vespavelutina). We measured the freezing vibrational response thresholds, and show that these natural signals exceed response thresholds. Finally, with artificial playbacks of the vibratory stop signal, we demonstrate that these signals referentially encode the danger that foragers experience at food source. Stop signals elicited by the larger and significantly more dangerous predator (V.mandarinia) were significantly 1.4-fold more inhibitory than stop signals elicited by the smaller and less dangerous predator (V.velutina). This dataset contains all of the data used for the statistical analyses reported in this paper and to generate the figures.

opencc-by-4.0Sep 2023View details →

A suspended hot drop of 1,3-propanediol with 4.1 mm base diameter, 190oC core temperature, and approaching air flow at 0.34 m/s, recorded at 10,000 fps and 99 ms exposure time, with default video playback speed 30 fps

A suspended hot drop of 1,3-propanediol with 4.1 mm base diameter, 190oC core temperature, and approaching air flow at 0.34 m/s, recorded at 10,000 fps and 99 ms exposure time, with default video playback speed 30 fps

publicJan 2024View details →

Familiarity, homogeneity, and discrimination of song dialects: Data and playback study stimuli

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publicNov 2023View details →

Data from: Interactive bioacoustic playback as a tool for detecting and exploring nonhuman intelligence: “Conversing” with an Alaskan humpback whale

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publicNov 2024View details →

Data from: Responses in adult pied flycatcher males depend on playback song similarity to local population

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zenodo32/100

Data: Effects of seismic airgun playbacks on swimming patterns and behavioural states of Atlantic cod in a net pen

Data abstract: We tracked individual fish using acoustic telemetry and exposed them to sound. Here, we provide (1) the raw acoustic tag detections, (2) the filtered/processed tag detections which served as an input for YAPS (Yet Another Positioning Solver), (3) the positions of the hydrophones (acoustic tag receivers), and (4) the positions of the fish (output of YAPS) and other relevant covariates (sun elevation, tide and treatment period).   Paper abstract: Anthropogenic sound can affect fish behaviour and physiology which may affect their well-being. However, it remains a major challenge to translate such effects to consequences for fitness at an individual and population level. For this, energy budget models have been developed, but suitable data to parametrize these models are lacking. A first step towards such parametrization concerns the objective quantification of behavioural states at high resolution. We experimentally exposed individual Atlantic cod (Gadus morhua) in a net pen to the playback of seismic airgun sounds. We demonstrated that individual cod in the net pen did not change their swimming patterns immediately at the onset of the sound exposure. However, several individuals changed their time expenditure in three different behavioural states during the 1 h exposure. This may be suitable input for energy budget models that allow predictions about fitness consequences of acoustic disturbance.   Paper reference: Hubert, J., Campbell, J. A., Slabbekoorn, H. (2020). Effects of seismic airgun playbacks on swimming patterns and behavioural states of Atlantic cod in a net pen. Mar. Pollut. Bull. 160, 111680. DOI:10.1016/j.marpolbul.2020.111680

opencc-by-4.0Sep 2020View details →

zenodo28/100

playback used for "Can vibrational playbacks either disrupt mating or influence other relevant behaviours in Bactericera cockerelli (Triozidae: Hemiptera)?"

Playbacks used for manipulating the behaviour of the insect pest Bactericera cockerelli.  For further information see "Can vibrational playbacks either disrupt mating or influence other relevant behaviours in Bactericera cockerelli (Triozidae: Hemiptera)?" by Avosani et al., submitted for publication.

opencc-by-4.0Apr 2020View details →

opencc-zeroNov 2020View details →

Calling in the face of danger: do nestling Red-winged Blackbirds (Agelaius phoeniceus) suppress begging in response to predator playbacks?

Nest predation is the most frequent cause of nest failure in birds such as the Red-winged Blackbird (Agelaius phoeniceus) that nest on or near the substrate. Nestlings should therefore exhibit adaptations to reduce the risk of nest predation. We tested the nestling antipredator hypothesis by examining the begging responses of Red-winged Blackbird nestlings to vocalizations of: (1) an important nest predator (American Crow, Corvus brachyrhynchos), (2) a predator that rarely preys on nestlings (Cooper's Hawk, Accipiter cooperii), and (3) a nonpredator (Northern Flicker, Colaptes auratus). We performed playbacks with: (1) both parents present at the nest, (2) male at the nest, and (3) neither parent present. Following playback, we measured duration of nestling begging after the parent departed (begging persistence), bouts of otherwise normal begging when no parent was present (parent-absent begging), and calling without postural components of begging (nonpostural begging). When the male or both parents were present during playback, adults responded with alarm calls and nestlings significantly reduced parent-absent begging following American Crow and Cooper's Hawk playbacks. Nonpostural begging was significantly reduced following Cooper's Hawk playback, but there were no significant differences in the other begging variables. When neither parent was present, we found no significant differences in nonpostural begging in response to the three playback types, but parent-absent begging was significantly reduced following American Crow and Cooper's Hawk playbacks when compared to Northern Flicker playbacks. These results show that nestlings suppress their vocal begging in response to calls of predators including Cooper's Hawks even though they are not common nest predators.

opencc-zeroDec 2015View details →

Data from: Song playback increases songbird density near low to moderate use roads

Many songbird species avoid roads. Although acoustic masking, vehicle collision, and edge effects are likely culprits, spatial avoidance also occurs along low use roads and at locations distant from the pavement. Neophobia may be one factor contributing to avoidance in these regions. In this case, playback of bird song, generally a signal of high-quality habitat, may reduce avoidance and increase territory establishment. We investigated whether playback of song from 6 migratory species increased territory establishment along low to moderate use roads in a community of songbird species. We determined whether the intensity and regularity of anthropogenic noise altered the pattern of response, and whether particular life-history traits predicted which species were responsive to playback. Territory density was significantly higher where song playback was present. Species-specific responses were variable, with 11 species increasing territory density by >30% at playback sites and 6 species decreasing in density. Noise level did not significantly impact establishment. Foraging behavior, habitat, and song frequency predicted which species were most responsive to playback. These results are similar to a companion study conducted near forest edges that did not contain roads, and suggests that song playback may be a viable method for increasing songbird use of near road habitats. Although additional work is needed to understand the variable responses of particular species and to address vital issues, such as the reproductive success of lured birds, this study highlights a behavioral management technique that may have significant conservation implications along the vast worldwide network of roads.

opencc-zeroDec 2012View details →

Data from: Size-dependent physiological responses of shore crabs to single and repeated playback of ship noise

Anthropogenic noise has fundamentally changed the acoustics of terrestrial and aquatic environments, and there is growing empirical evidence that even a single noise exposure can impact behaviour in a variety of vertebrate organisms. Here we use controlled experiments to investigate how the physiology of a marine invertebrate, the shore crab (Carcinus maenas), is affected by both single and repeated exposure to ship-noise playback. Crabs experiencing ship-noise playback consumed more oxygen, indicating a higher metabolic rate and potentially greater stress, than those exposed to ambient-noise playback. The response to single ship-noise playback was size-dependent, with heavier crabs showing a stronger response than lighter individuals. Repeated exposure to ambient-noise playback led to increased oxygen consumption (likely due to handling stress), whereas repeated exposure to ship-noise playback produced no change in physiological response; explanations include the possibility that crabs exhibited a maximal response on first exposure to ship-noise playback or that they habituated or become tolerant to it. These results highlight that invertebrates, like vertebrates, may also be susceptible to the detrimental impacts of anthropogenic noise, and demonstrate their tractability for more detailed investigations into the effects of this pervasive global pollutant.