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79 results for “Anti-predator”
Data from: Phenotypic integration between anti-predator behaviour and camouflage pattern in juvenile sticklebacks
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Data from: The anti-predator role of within-nest emergence synchrony in sea turtle hatchlings
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Data from: Experimentally induced anti-predator responses are mediated by social and environmental factors
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Data from: Effects of feral cats on the evolution of anti-predator behaviours in island reptiles: insights from an ancient introduction
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Data from: Predator exposure improves anti-predator responses in a threatened mammal
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Data from: Functional diversity and trade-offs in divergent anti-predator morphologies in herbivorous insects
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Data and code from: Light might suppress both types of sound-evoked anti-predator flight in moths
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Data from: How long do anti-predator interventions remain effective? Patterns, thresholds and uncertainty
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Data from: Captive birds exhibit greater foraging efficiency and vigilance after anti-predator training
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Data for: Landscape of fear or landscape of food? Moose hunting triggers an anti-predator response in brown bears
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Social learning of acoustic anti-predator cues occurs between wild bird species
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Data: Interacting effects of short-term and long-term noise exposure on anti-predator behaviour: A field experiment with sand gobies
<p>Data on anti-predator behaviour of sand gobies during trials with exposure to either boat noise or a silent control. Gobies were living in a range of quiet to noisy habitats.</p>
Data from: Determinants and co-expression of anti-predator responses in amphibian tadpoles: a meta-analysis
A wide range of taxa respond to perceived predation risk (PPR) through inducible defenses, and many prey are capable of responding both behaviorally and morphologically to the same risk event. In cases where multiple defenses confer protection by independent means (i.e., they are mechanistically independent) responses will either be co-expressed, or the expression of one defense will limit the capacity (or need) to respond along another axis. Our ability to generate a broad understanding of these patters has been limited, in part, by difficulties in comparing results across studies that employ distinct experimental protocols. Using the extensive literature on tadpole responses to PPR, we conducted a meta-analysis to identify the ecological and experimental determinants of inducible defence expression. We then assessed whether the magnitude of response to PPR along behavioural versus morphological response axes was positively, or negatively, correlated. The most commonly quantified responses to perceived risk in tadpoles included reductions in movement and swimming behaviour, and altered tail morphology. Our analyses reveal that tadpole behavioural responses are strongly influenced by prey family, predator taxon, evolutionary history with the predator (native vs. non-native), amount of prey consumed by the predator, and how perceived risk was manipulated (e.g., presence vs. absence of alarm cues). Tail morphology was similarly influenced by these factors, but also whether the target prey was palatable to predators. Thus, our results identify ecological and experimental features that critically influence the observed effect size in tadpole responses to PPR. A positive correlation between behavioural and morphological responses in studies where both were measured indicates that trait co-specialization is the predominant pattern of defense deployment in larval amphibians. This positive relationship suggests that survival tends to be maximized in tadpoles through equivalent coactivation of multiple independent axes of protection, opposed to maximal expression along any single axis.
Data from: Unpredictable movement as an anti-predator strategy
Prey animals have evolved a wide variety of behaviours to combat the threat of predation, and these have been generally well studied. However, one of the most common and taxonomically widespread antipredator behaviours of all has, remarkably, received almost no experimental attention: so-called 'protean' behaviour. This is behaviour which is sufficiently unpredictable to prevent a predator anticipating in detail the future position or actions of its prey. In this study, we used human 'predators' participating in 3D virtual reality simulations to test how protean (i.e. unpredictable) variation in prey movement affects participants' ability to visually target them as they move (a key determinant of successful predation). We found that targeting accuracy was significantly predicted by prey movement path complexity, although, surprisingly, there was little evidence that high levels of unpredictability in the underlying movement rules equated directly to decreased predator performance. Instead, the specific movement rules differed in how they impacted on targeting accuracy, with the efficacy of protean variation in one element depending on the values of the remaining elements. These findings provide important insights into the understudied phenomenon of protean antipredator behaviour, which are directly applicable to predator-prey dynamics within a broad range of taxa.
In utero accumulated steroids predict neonate anti-predator response in a wild mammal
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Data from: Unpredictable movement as an anti-predator strategy
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Data from: Testing social learning of anti-predator responses in juvenile jackdaws: the importance of accounting for levels of agitation
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Data from: Determinants and co-expression of anti-predator responses in amphibian tadpoles: a meta-analysis
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Anti-predator behavior in two brown frogs: differences in the mean behaviors and in the structure of animal personality variation
<p>Predators are a major source of selection and preys have evolved the ability to flexibly respond to them. These responses often vary among species, because of their different evolutionary history, and among individuals, because of their different experiences. We analyzed both these sources of behavioral variation in two closely related brown frogs, <em>Rana dalmatina </em>and <em>R. latastei</em>. We raised tadpoles either with or without predators and tested them in open field trials both with and without predators. The effects of the raising environment were similar in the two species, whereas the effects of the testing arena differed. Both species decreased activity and increased speed and tortuosity with predators, but <em>R. dalmatina </em>moved always more and faster than <em>R. latastei </em>and it showed higher plasticity, larger variation among and within individuals, and relatively higher values in repeatability.</p>
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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.