Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
391
datasets available to search
ShareScore release 0.7.1
Dataset results
391 results for “caterpillars”
Figure 3. - The locality near Josefov, Eastern Bohemia, where the caterpillar of Phengarisnausithous was found in a nest of Myrmicascabrinodis. Photo: Pavel Pech.
Figure 3. - The locality near Josefov, Eastern Bohemia, where the caterpillar of Phengarisnausithous was found in a nest of Myrmicascabrinodis. Photo: Pavel Pech.
Figure 3. - The locality near Josefov, Eastern Bohemia, where the caterpillar of Phengarisnausithous was found in a nest of Myrmicascabrinodis. Photo: Pavel Pech.
Figure 3. - The locality near Josefov, Eastern Bohemia, where the caterpillar of Phengarisnausithous was found in a nest of Myrmicascabrinodis. Photo: Pavel Pech.
FIGURE 4 in A trunk-nesting form of the processionary caterpillar Ochrogaster lunifer (Lepidoptera: Notodontidae) restricted to a single host species Corymbia tessellaris (Myrtaceae), with some comparisons to the ground-nesting form
FIGURE 4 Frequency plot of the head capsule widths of Ochrogaster lunifer tree-hugger larvae.
Asymmetric regulation of caterpillar development by changes in photoperiod
<div>Many insects possess the plastic ability to either develop directly to adulthood, or enter diapause and postpone reproduction until the next year, depending on environmental cues (primarily photoperiod) that signal the amount of time remaining until the end of the growth season. These two alternative pathways often differ in co-adapted life history traits, e.g. with slower development and larger size in individuals headed for diapause. The developmental timing of these differences may be of adaptive importance: if traits diverge early, the potential for phenotypic differences between the pathways is greater, whereas if traits diverge late, the risk may be lower of expressing a maladaptive phenotype if the selective environment changes during development. Here we explore the effects of changes in photoperiodic information during life on pupal diapause and associated life history traits in the butterfly Pararge aegeria. We find that both pupal diapause and larval development rate are asymmetrically regulated: while exposure to long days late in life (regardless of earlier experiences) was sufficient to produce non-diapause development and accelerate larval development accordingly, more prolonged exposure to short days was required to induce diapause and slow down pre-diapause larval development. While the two developmental pathways diverged early in development, development rates could be partially reversed by altered environmental cues. Meanwhile, pathway differences in body size were more inflexible, despite emerging late in development. These results show how several traits may be shaped by the same environmental cue (photoperiod), but along subtly different ontogenies, into an integrated phenotype.</div>
Profiling, monitoring and conserving caterpillar fungus in the Himalayan region using anchored hybrid enrichment markers
<p>The collection of caterpillar fungus accounts for 50-70% of the household income of thousands of Himalayan communities and has an estimated market value of $5-11 billion across Asia. However, Himalayan collectors are at multiple economic disadvantages compared with collectors on the Tibetan plateau because their product is not legally recognized. Using a customized hybrid-enrichment probe set and market-grade caterpillar fungus (with samples up to 30 years old) from 94 production zones across Asia, we uncovered clear geography-based signatures of historical dispersal and significant isolation-by-distance among caterpillar fungus hosts. This high-throughput approach can readily distinguish samples from major production zones with definitive geographical resolution, especially for samples from the Himalayan region that form monophyletic clades in our analysis. Based on these results, we propose a two-step procedure to help local communities authenticate their produce and improve this multi-national trade route without creating opportunities for illegal exports and other forms of economic exploitation. We argue that policy makers and conservation practitioners must encourage the fair trade of caterpillar fungus in addition to sustainable harvesting to support a transboundary conservation effort that is much needed for this natural commodity in the Himalayan region.</p>
Weissflog et al. - Daytime but not plant trichomes provide herbivores with enemy-free space: of plasticine caterpillars, superheroes, and natural enemies.
<p>RAW DATA</p> <p>We use artificial prey to quantify spatial and temporal variation in predation pressure on insect herbivores in two tropical rainforest sites in Panama. </p> <p>We measured temporal and spatial variation in predation in the understory of the lowland rainforest of Barro Colorado Island in Panama [79°49.79´S, 9°9.48´E; 2600 mm yr<sup>-1</sup> rainfall, 3 mo dry season; = island experiment) in February 2020 by comparing diurnal and nocturnal attacks on plasticine caterpillars and hulks placed on glabrous and pubescent plants. We used model prey to measure predation pressure. Caterpillars (50 x 4 mm) and hulks (with a height of 30 mm that equaled the maximum height of the bent caterpillars) were molded from green, (to humans) odorless, non-toxic Newplast (Newclay Products Ltd., Newton Abbot, UK). Caterpillars were shaped and bent to mimic the posture of common geometrid caterpillars. Hulks resembled small (but fearsome) superhero figurines, known from the Marvel comics (Marvel Worldwide Inc.), and were shaped using custom made plastic molds. We used hulks as a control to the more naturally shaped caterpillar models to test whether objects resembling natural prey are indeed recognized as such by potential predators. All objects were modeled and handled using surgical gloves to avoid leaving unwanted cues (i.e., scent or other distracting contaminants) to predators. A hundred caterpillars and a hundred hulks were individually placed on 50 plants per host species. Objects were attached close to the midrib on the upper surface of plant leaves with a small amount of fast-setting glue, 30-80 cm from the ground. For four consecutive days (total of 96 h), the plasticine objects were inspected in 12 hour intervals at dusk and dawn (18:15 and 06:15 hours) to differentiate diurnal from nocturnal predation.</p> <p>Further, we conducted a follow-up experiment in a close-by mainland forest site in Gamboa, Parque Nacional Soberanía (79°43.38 S, 9°8.24 E; = mainland study) in early-March 2021. Following the same procedure as for the island experiment described above, we glued 27 caterpillars, 27 hulks, and 27 small caterpillars (30 x 2 mm) close to the midrib onto the upper side of leaves of tree saplings. In this follow-up experiment, we did however not select specific plant species, but chose saplings that were naturally growing in the field site. All plants were of similar size, with simple, elliptic to ovate, smooth-edged leaves, and without any foliar or stem pubescence. As before, all objects were carefully inspected for attack marks at 12 hour intervals at 18:15 and 06:15 hours for four consecutive days.</p>
Data from: Phloem-feeding insects creat parasitoid free space for caterpillars
<p>Seemingly small ecological changes can have large, ramifying effects that defy expectations. Such are keystone effects in ecosystems. Phloem-feeding insect herbivores can act as keystone species by altering community structure and species interactions via plant-mediated or ant-mediated mechanisms. Plant responses triggered by phloem-feeders can disrupt tri-trophic interactions induced by leaf-chewing herbivores, while ants that tend phloem-feeders can deter or prey on other arthropods. Here, we investigate how phloem-feeding herbivores change caterpillar-parasitoid interactions on <em>Quercus alba</em> (white oak) trees in natural forests. We factorially manipulated the presence of phloem-feeding insects as well as ant access on <em>Q. alba</em> branches over multiple years and sites, and measured parasitism rates of co-occurring caterpillars. While 19.3% of caterpillars were parasitized when phloem-feeders were removed, the presence of phloem-feeders completely suppressed parasitism of caterpillars (0%). This stark pattern was consistent across the diverse community of phloem-feeders and caterpillars. Our manipulation of ant access had no effect on parasitism of caterpillars, implicating a plant-mediated mechanism. We further assessed the mechanistic hypothesis that phloem-feeders suppress plant emission of caterpillar-induced volatile compounds, which could disrupt host location behavior by parasitoids of caterpillars. Phloem-feeders indeed reduced concentrations of four volatile compounds, consistent with the putative plant volatile-mediated mechanism. Given the important role of parasitoids in controlling herbivore populations, this keystone effect of phloem-feeders offers novel insight into community dynamics in forests and potentially other terrestrial ecosystems.</p>
Dataset for paper Do ant-caterpillar interactions indirectly benefit spiders?
<p>Dataset for paper Do ant-caterpillar interactions indirectly benefit spiders?</p>
Braconid wasps, caterpillars and biocontrol
New information (host records, maps with detailed distribution of species), and pictures of braconid species parasitizing caterpillars (Lepidoptera). Contents mostly include the subfamily Microgastrinae, and the geographic coverage will initially focus in the Nearctic region, but will expand beyond in time. <p></p>http://cncbraconidae.blogspot.ca/
Plant-phenotypic changes induced by parasitoid ichnoviruses enhance the performance of both unparasitized and parasitized caterpillars
<p>There is increasing awareness that interactions between plants and insects can be mediated by microbial symbionts. Nonetheless, evidence showing that symbionts associated with organisms beyond the second trophic level affect plant-insect interactions are restricted to a few cases belonging to parasitoid-associated bracoviruses. Insect parasitoids harbor a wide array of symbionts which, like bracoviruses, can be injected into their herbivorous hosts to manipulate their physiology and behavior. Yet, the function of these symbionts in plant-based trophic webs remains largely overlooked.</p> <p>Here we provide the first evidence of a parasitoid-associated symbiont belonging to the group of ichnoviruses which affects the strength of plant-insect interactions. A comparative proteomic analysis shows that, upon parasitoid injection of calyx fluid containing ichnovirus particles, the composition of salivary glands of caterpillars changes both qualitatively (presence of two viral-encoded proteins) and quantitatively (abundance of several caterpillar-resident enzymes, including elicitors such as glucose oxidase). In turn, plant phenotypic changes triggered by the altered composition of caterpillar oral secretions affect the performance of herbivores. Ichnovirus manipulation of plant responses to herbivory leads to benefits for their parasitoid partners in terms of reduced developmental time within the parasitized caterpillar. Interestingly, plant-mediated ichnoviruses-induced effects also enhance the performances of unparasitized herbivores which in natural conditions may feed alongside parasitized ones. We discuss these findings in the context of ecological costs imposed to the plant by the viral symbiont of the parasitoid. Our results provide intriguing novel findings about the role played by carnivore-associated symbionts on plant-insect-parasitoid systems and underline the importance of placing mutualistic associations in an ecological perspective.</p>
Symbiotic interaction between Dolichoderus (Formicidae) ants and caterpillar of Nymphidium olinda (Riodinidae) in Pantanal.
<p>Symbiotic interaction between Dolichoderus (Formicidae) ants and caterpillar of Nymphidium olinda (Riodinidae) in Pantanal. For dettails about this interaction see the paper "Behavioral observations of ant-butterfly symbioses in the Pantanal wetlands of west-central Brazil" by Guedes & Kaminski published in Tropical Lepidoptera Research.</p>
Data from: Behavioral thermoregulation of caterpillars is altered by temperature, but not parasitism: an empirical field study
<p>Laboratory assays show that parasites often have lower heat tolerance than their hosts. But how physiological tolerances and behavioral responses of hosts and parasites combine to affect their ecological interactions in heterogeneous field environments is largely unknown. We addressed this challenge using the model insect system of the braconid wasp parasitoid, <em>Cotesia congregata</em>, and its caterpillar host, <em>Manduca sexta</em>. We used experimental manipulations of microclimate in the field to determine how elevated daytime temperatures altered the behavior, performance, and survival of the host and parasite. Our experimental manipulation increased daily maximum temperatures on host plants, but had negligible effects on overall mean temperature. These increased maximum temperatures resulted in subtle, biologically relevant, changes in physiology and behavior of the host and parasitoid. We found that parasitism by the wasp did not significantly alter caterpillar thermoregulatory behavior, while experimentally increased daily maximum temperatures resulted in both parasitized and unparasitized caterpillars being found more frequently in cooler microhabitats. Overall, we did not observe the complete parasitoid mortality seen at extreme temperatures in laboratory studies, but gained insight into sublethal effects of increased daily maximum temperatures on host and parasitoid behavior and physiology. Climate change will alter both the biotic and abiotic environments that organisms face, and we show here that empirical experiments in the field are important for understanding organismal response to these new environments. </p>
Additive genetic effects in interacting species jointly determine the outcome of caterpillar herbivory
<p>Plant-insect interactions are common and important in basic and applied biology. Trait and genetic variation can affect the outcome and evolution of these interactions, but the relative contributions of plant and insect genetic variation and how these interact remain unclear and are rarely subject to assessment in the same experimental context. Here we address this knowledge gap using a recent host range expansion onto alfalfa by the Melissa blue butterfly. Common garden rearing experiments and genomic data show that caterpillar performance depends on plant and insect genetic variation, with insect genetics contributing to performance earlier in development and plant genetics later. Our models of performance based on caterpillar genetics retained predictive power when applied to a second common garden. Much of the plant genetic effect could be explained by heritable variation in plant phytochemicals, especially saponins, peptides, and phosphatidyl cholines, providing a possible mechanistic understanding of variation in the species interaction. We find evidence of polygenic, mostly additive effects within and between species, with consistent effects of plant genotype on growth and development across multiple butterfly species. Our results inform theories of plant-insect coevolution and the evolution of diet breadth in herbivorous insects and other host-specific parasites.</p>
Late instar monarch caterpillars sabotage milkweed to acquire toxins, not to disarm plant defense
<p class="MsoNormal"><span>Sabotaging milkweed by monarch caterpillars (<em>Danaus</em> <em>plexippus</em>) is a famous textbook example of disarming plant defense. By severing leaf veins or petioles, monarchs are thought to prevent the flow of toxic latex to their feeding site. Here we show that sabotaging by monarch caterpillars is not only an avoidance strategy. While young caterpillars appear to avoid latex, late-instar caterpillars actively ingest exuding latex, presumably to increase sequestration of toxic latex cardenolides used for defense against predators. Comparisons with caterpillars of the related but non-sequestering common crow butterfly (<em>Euploea</em> <em>core</em>) revealed three lines of evidence supporting our hypothesis. First, monarch caterpillars sabotage inconsistently and therefore the behavior is not obligatory to feed on milkweed, whereas sabotaging precedes each feeding event in <em>Euploea</em> caterpillars. Second, monarch caterpillars shift their behavior from latex avoidance in younger stages to eager drinking in later stages, whereas <em>Euploea</em> caterpillars consistently avoid latex and spit it out during sabotaging. Third, monarchs reared on detached leaves without latex, sequestered more cardenolides when caterpillars imbibed latex offered with a pipette. Thus, we conclude that monarch caterpillars have transformed the 'sabotage to avoid' strategy of their relatives into a 'sabotage to consume' strategy implying a novel behavioral adaptation to increase sequestration of cardenolides for defense.</span></p>
Caterpillar Occupation Collection Box
In January 1987 workers at the Caterpillar plant in Uddingston tried to save 1,200 jobs through an action that came to symbolise the cruel de-industrialisation of Scotland. After a promised £62.5 million investment was withdrawn, the workers barricaded themselves inside the factory for 103 days, eventually winning a guarantee of no immediate redundancies. However, despite the efforts of the workers to find a buyer for the plant it was closed in November of that year. This collecting box was used to raise money to support the Caterpillar workers during the occupation and is currently in the collection administered by [CultureNL Museums ](http://culturenl.co.uk/summerlee/). You can see their collection online at [culturenlmuseums.co.uk](http://culturenlmuseums.co.uk). The 3D model was created by the Scottish Maritime Museum as a part of the Scanning The Horizon project, working with collections from Industrial Museums Scotland ([Go Industrial](http://www.goindustrial.co.uk)). Source: Objaverse 1.0 / Sketchfab
Storytelling Caterpillar - Pain, Anxiety, and Satisfaction
ClinicalTrials.gov study NCT07127432. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Between predators and parasitoids: complex interactions among shelter traits, predation, and parasitism in a shelter-building caterpillar community
Open the record for dataset details and reuse information.
Behavior and performance data of monarch butterfly caterpillars
Open the record for dataset details and reuse information.
Data from: Varyingly hungry caterpillars: predictive models and foliar chemistry suggest how to eat a rainforest
Open the record for dataset details and reuse information.
Out in the open: behavior’s effect on predation-risk and thermoregulation by aposematic caterpillars
Open the record for dataset details and reuse information.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.