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391 results for “caterpillars”
Data from: Predatory birds and ants partition caterpillar prey by body size and diet breadth
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Code from: Competition between elasticity and adhesion in caterpillar locomotion
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Asymmetric regulation of caterpillar development by changes in photoperiod
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Caterpillars on a phytochemical landscape: the case of alfalfa and the Melissa blue butterfly
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Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory
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Data from: Behavioral thermoregulation of caterpillars is altered by temperature, but not parasitism: an empirical field study
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Parasitoids of leaf herbivores enhance plant fitness and do not alter caterpillar-induced resistance against seed beetles
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Plant-phenotypic changes induced by parasitoid ichnoviruses enhance the performance of both unparasitized and parasitized caterpillars
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Data from: Colour plasticity alters thermoregulatory behaviour in Battus philenor caterpillars by modifying the cue received
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Data from: Phloem-feeding insects creat parasitoid free space for caterpillars
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Profiling, monitoring and conserving caterpillar fungus in the Himalayan region using anchored hybrid enrichment markers
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Data from: Live fast, die young? Day- and night-warming affects the growth, survivorship and behavior of caterpillars in the field
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Predation on artificial caterpillars following understorey fires in human-modified Amazonian forests
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Hawaiian caterpillar patrols spiderwebs camouflaged in insect prey’s body parts
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Data for: Field evidence for the role of plant volatiles induced by caterpillar oral secretion in prey localization by predatory social wasps
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Late instar monarch caterpillars sabotage milkweed to acquire toxins, not to disarm plant defence
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Data from: Differing thermal sensitivities in a host-parasitoid interaction: high, fluctuating developmental temperatures produce dead wasps and giant caterpillars
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FIGURE 3 in A new genus and species of Neotropical gregarious braconine parasitoid (Hymenoptera: Braconidae) of a caterpillar (Lepidoptera: Hesperiidae)
FIGURE 3. Upper, group-constructed cocoon of Acgorium felipechavarriai sp. nov. spun tightly against the floor of the rolled leaf nest of a last instar Dyscophellus phraxanor (Hesperiidae) caterpillar (16-SRNP-30739-DHJ729848) feeding on mature leaves of Virola sebifera in mid-elevation tropical rain forest (ACG). While the wasp larvae spin the silk cocoon jointly (collaboratively), immediately after they make the "roof" they each spin their own individual cocoons below it, and escape through the individual-cut exit holes about 15 to 18 days later. The adult wasps immediately fly away with no sign of courtship or mating. It should be emphasized that the host larva shelters in the nest all day, but is fully exposed at night when feeding on open leaf surfaces. Once with visible larvae on its back, the host caterpillar becomes moribund in the nest but does not die until the group cocoon is spun. Lower, cadaver of the host caterpillar as semi-glued to the leaf next to the group (upper). It is not known if the group of larvae move slightly as a group prior to spinning the group cocoon, or just push the cadaver partly to the side in the process of spinning. The cadaver is not incorporated into the cocoon mass.
Data from: Dietary specialization is conditionally associated with increased ant predation risk in a temperate forest caterpillar community
The enemy-free space hypothesis (EFSH) contends that generalist predators select for dietary specialization in insect herbivores. At a community level, the EFSH predicts that dietary specialization reduces predation risk, and this pattern has been found in several studies addressing the impact of individual predator taxa or guilds. However, predation at a community level is also subject to combinatorial effects of multiple predator types, raising the question of how so-called multiple predator effects relate to dietary specialization in insect herbivores. Here we test the EFSH with a field experiment quantifying ant predation risk to insect herbivores (caterpillars) with and without the combined predation effects of birds. Assessing a community of 20 caterpillar species, we use model selection in a phylogenetic comparative framework to identify the caterpillar traits that best predict the risk of ant predation. A caterpillar species' abundance, dietary specialization, and behavioral defenses were important predictors of its ant predation risk. Abundant caterpillar species had increased its risk of ant predation irrespective of bird predation. Caterpillar species with broad diet breadth and behavioral responsiveness to attack had reduced ant predation risk, but these ant effects only occurred when birds also had access to the caterpillar community. These findings suggest that ant predation of caterpillar species is density- or frequency-dependent, that ants and birds may impose countervailing selection on dietary specialization within the same herbivore community, and that contingent effects of multiple predators may generate behaviorally mediated life history trade-offs associated with herbivore diet breadth.
Data from: Microbiomes of a specialist caterpillar are consistent across different habitats but also resemble the local soil microbial communities
<p><b>Background</b>: Insect-associated microorganisms can provide a wide range of benefits to their host, but insect dependency on these microbes varies greatly. The origin and functionality of insect microbiomes is not well understood. Many caterpillars can harbor symbionts in their gut that impact host metabolism, nutrient uptake and pathogen protection. Despite our lack of knowledge on the ecological factors driving microbiome assemblages of wild caterpillars, they seem to be highly variable and influenced by diet and environment. Several recent studies have shown that shoot-feeding caterpillars acquire part of their microbiome from the soil. Here, we examine microbiomes of a monophagous caterpillar (<i>Tyria jacobaeae</i>) collected from its natural host plant (<i>Jacobaeae vulgaris</i>) growing in three different environments: coastal dunes, natural inland grasslands and riverine grasslands, and compare the bacterial communities of the wild caterpillars to those of soil samples collected from underneath each of the host plants from which the caterpillars were collected.</p> <p><b>Results</b>: The microbiomes of the caterpillars were dominated by Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes. Only 5% of the total bacterial diversity represented 86.2% of the total caterpillar's microbiome. Interestingly, we found a high consistency of dominant bacteria within the family Burkholderiaceae in all caterpillar samples across the three habitats. There was one amplicon sequence variant belonging to the genus <i>Ralstonia</i> that represented on average 53% of total community composition across all caterpillars. On average, one quarter of the caterpillar microbiome was shared with the soil.</p> <p><b>Conclusions</b>: We found that the monophagous caterpillars collected from fields located more than 100 kilometers apart were all dominated by a single <i>Ralstonia</i>. The remainder of the bacterial communities that were present resembled the local microbial communities in the soil in which the host plant was growing. Our findings provide an example of a caterpillar that has just a few key associated bacteria, but that also contains a community of low abundant bacteria characteristic of soil communities.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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