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53 results for “predator defense”
Calcareous defense structures of prey mediate the effects of predation and biotic resistance towards the tropics
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Predator defense is shaped by risk, brood value and social group benefits in a cooperative breeder
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Fortified defense: Novel mechanisms allow a treehole mosquito to resist predation from a predatory mosquito
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Data from: Unpredictable aggressive defense of the venomous snake, Crotalus ravus, towards predators and humans
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Sequestration of defenses against predators drives specialized host plant associations in preadapted milkweed bugs (Heteroptera: Lygaeinae)
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Predator community and resource use jointly modulate the inducible defense response in body height of crucian carp
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Data from: Gape-limited predators as agents of selection on the defensive morphology of an invasive invertebrate
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Chemical defense acquired via pharmacophagy can lead to protection from predation for conspecifics in a sawfly
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Data from: Little to fear: largest lizard predator induces weak defense responses in ungulate prey
Non-consumptive effects can strongly influence apex predator ecological function. These effects arise because prey produce often induce costly phenotypic responses to mitigate predation risk. Yet because predator-prey interactions are complex, prey defences may vary considerably. We investigated if the Komodo dragon (Varanus komodoensis), an reptile apex predator, induced multi-scale anti-predator responses in key prey, the Rusa deer (Cervus timorensis) and the wild pig (Sus scrofa). To this end, we examined the temporal and spatial partitioning of habitats by predator and prey, determined the size of ungulate groups as a function of risk, and assessed changes in individual behavior of prey individuals exposed to predator kairomones at feeding stations. Komodo dragon, deer and pig populations exhibited significant, but subtle differences in three habitat preferences, that otherwise indicated high niche overlap. Komodo dragon predation risk, alongside other commonly considered predictor variables did not affect deer or pig group size. With the exception of one individual-based vigilance type behavior in pigs, no other anti-predator behavior, including reduced food consumption, significantly varied in the presence of predator odour cue at feeding stations. Overall our results indicated limited evidence for anti-predator behavior and suggest Komodo dragons exert weak non-consumptive effects of predation in ungulates. However, weak predatory interactions could be beneficial in island ecosystems as it could promote predator-prey co-existence that reduces extinction risk.
Data from: Little to fear: largest lizard predator induces weak defense responses in ungulate prey
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Data from: Inducible defense destabilizes predator–prey dynamics: the importance of multiple predators
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Inherited predation defense strategies in planthopper: Implications for biocontrol and ecosystem evolution
<p class="a"><span>Predators can induce morphological plasticity in prey through selection driven by predation risk. However, defense plasticity is rarely reported in insects, let alone trans-generational plasticity and attention of such plasticity devoted to pest control and ecosystem evolution. Here we examined the morphological plasticity of small brown planthoppers (SBPHs), <i>Laodelphax striatellus</i>, in the parent or F1 generations when exposed to predation risk of a caged predator, <i>Paederus fuscipes</i>. We also uncovered the survival outcomes (fitness gained) in SBPHs with predator-induced defensive morphological traits by examining their survival probability and behavioral plasticity. Results showed risky predators could enhance a higher proportion of long-winged, female SBPHs in the parent and F1 generation, but the proportion of males neither short- nor long- winged forms were affected, probably because females suffered greater mortality than males during the longer periods of predation risk. Surprisingly, we discovered these long-winged forms had a higher survival probability when attacked by <i>P. fuscipes, </i>owing to an enhanced agility level. Our results suggest the within- and trans-generational plasticity of induced defenses may cause profound effects on SBPH population dynamics and prey-predator interaction. Understanding this interaction may illuminate the context of ecosystem evolution, help to predict pest dispersal or migration, which contributes to pest control.</span></p>
Inherited predation defense strategies in planthopper: Implications for biocontrol and ecosystem evolution
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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.