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”
Data and Code in support of Caterpillar abundance in a northern hardwood forest: exogenous effects, endogenous feedbacks, and multidecadal trends.
In this study, we analyzed caterpillar abundance and biomass measured over 50 years (1970 - 2021) in the Hubbard Brook Experimental Forest, New Hampshire, USA. We tested mechanisms for determination of caterpillar abundance that included weather, host plant quality, and predator abundance. This dataset includes data, R code, and spatial files supporting this study. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
Data and code from Artificial light at night increases top-down pressure on caterpillars: experimental evidence from a light-naive forest - 2021-2022
This dataset has been prepared in support of a paper to be published in Proceedings of the Royal Society B: Biological Sciences. It includes both data files and R scripts used for the analysis in this publication: Deitch, J.F. and S.A. Kaiser. 2023. Artificial light at night increases top-down pressure on caterpillars: experimental evidence from a light-naive forest. Proceedings of the Royal Society B: Biological Sciences. (https://doi.org/10.1098/rspb.2023.0153) Artificial light at night (ALAN) is a globally widespread and expanding form of anthropogenic change that impacts arthropod biodiversity. ALAN alters interspecific interactions between arthropods, including predation and parasitism. Despite their ecological importance as prey and hosts, the impact of ALAN on larval arthropod stages, such as caterpillars, is poorly understood. We examined the hypothesis that ALAN increases top-down pressure on caterpillars from arthropod predators and parasitoids. We experimentally illuminated study plots with moderate levels (10-15 lux) of LED lighting at light-naive Hubbard Brook Experimental Forest, New Hampshire. We measured and compared between experimental and control plots: 1) predation on clay caterpillars and 2) abundance of arthropod predators and parasitoids. We found that predation rates on clay caterpillars and abundance of arthropod predators and parasitoids were significantly higher on ALAN treatment plots relative to control plots. These results suggest that moderate levels of ALAN increases top-down pressure on caterpillars. We did not test mechanisms, but sampling data indicates that increased abundance of predators near lights may play a role. This study highlights the importance of examining the effects of ALAN on both adult and larval life stages and suggests potential consequences of ALAN on arthropod populations and communities. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubba
Figure 1 in Eggs, final-instar caterpillars and metamorphosis of Cyclosia macularia Guérin Méneville (Lepidoptera: Zygaenidae) from its larval host plant Baccaurea motleyana
Figure 1. (A) Final instar larva of Cyclosia macularia on Baccaurea motleyana leaf found in orchard (scale bar = 10 mm); (B) final instar larvae of C. macularia on B. motleyana leaf (scale bar = 10 mm); (C) turned black before it underwent pupation (scale bar = 10 mm).
Figure 2 in Bornean caterpillar (Lepidoptera) constructs cocoon from Vatica rassak (Dipterocarpaceae) resin containing multiple deterrent compounds
Figure 2. Pieces of resin taken from the cocoon and imaged (A) using photomontage; and (B– D) environmental electron microscopy. Images (B–D) show the elaborate shearing patterns within the resin. The centre of image (D) shows what may be a score mark in the surface of the resin made by the caterpillar.
Data from: What goes in must come out? The metabolic profile of plants and caterpillars, frass, and adults of Asota (Erebidae: Aganainae) feeding on Ficus (Moraceae) in New Guinea
<p>Insect herbivores have evolved a broad spectrum of adaptations in response to the diversity of chemical defences employed by plants. Here we focus on two species of New Guinean Asota and determine how these specialist moths deal with the leaf alkaloids of their fig (Ficus) hosts. As each focal Asota species is restricted to one of three chemically distinct species of Ficus, we also test whether these specialized interactions lead to similar alkaloid profiles in both Asota species. We reared Asota caterpillars on their respective Ficus hosts in natural conditions and analyzed the alkaloid profiles of leaf, frass, caterpillar, and adult moth samples using UHPLC–MS/MS analyses. We identified 43 alkaloids in our samples. Leaf alkaloids showed various fates. Some were excreted in frass or found in caterpillars and adult moths. We also found two apparently novel indole alkaloids likely synthesized de novo by the moths or their microbiota—in both caterpillar and adult tissue but not in leaves or frass. Overall, alkaloids unique or largely restricted to insect tissue were shared across moth species despite feeding on different hosts. This indicates that a limited number of plant compounds have a direct ecological function that is conserved among the studied species. Our results provide evidence for the importance of phytochemistry and metabolic strategies in the formation of plant–insect interactions and food webs in general. Furthermore, we provide a new potential example of insects acquiring chemicals for their benefit in an ecologically relevant insect genus.</p>
Figure 4 in Purification and Characterization of Midgut α-Glucosidase from Larvae of the Rice Green Caterpillar, Naranga aenescens Moore
Figure 4. Irreversible thermoinactivation of the N. aenescens α-glucosidase at 35 (▲), 40 (■) and 45 °C (•). Different letters indicate that the relative activity of enzymes is significantly different from each other by Tukey's test (P <0.05).
Figure 3 in Purification and Characterization of Midgut α-Glucosidase from Larvae of the Rice Green Caterpillar, Naranga aenescens Moore
Figure 3. Effect of pH (a) and (b) temperature on the activity of N. aenescens α -glucosidase.Different letters indicate that the relative activity of enzymes is significantly different from each other by Tukey's test (P <0.05).
Figure 2 in Purification and Characterization of Midgut α-Glucosidase from Larvae of the Rice Green Caterpillar, Naranga aenescens Moore
Figure 2. Analysis of purified αglucosidase by SDS-PAGE. Lanes 1 and 2: Active fraction after ion exchange chromatography stained with histochemical and general staining, respectively; Lane 3: Molecular weight markers.
Figure 1 in Purification and Characterization of Midgut α-Glucosidase from Larvae of the Rice Green Caterpillar, Naranga aenescens Moore
Figure 1. Elution profile of N. aenescens α-glucosidase on DEAE-sepharose column. The active peak is indicated. Arrow is pointing to the fifth peak, eluted around 0.4 M salt, corresponding to the α-glucosidase activity.
Selfish herd effects in aggregated caterpillars and their interaction with warning signals
<p>Larval Lepidoptera gains survival advantages by aggregating, especially when combined with aposematic warning signals, yet reductions in predation risk may not be experienced equally across all group members. Hamilton's selfish herd theory predicts that larvae that surround themselves with their group mates should be at lower risk of predation, and those on the periphery of aggregations experience the greatest risk, yet this has rarely been tested. Here, we expose aggregations of artificial 'caterpillar' targets to predation from free-flying, wild birds to test for marginal predation when all prey are equally accessible, and for interaction between warning colouration and marginal predation. We find that targets nearer the centre of the aggregation survived better than peripheral targets and nearby targets isolated from the group. However, there was no difference in survival between peripheral and isolated targets. We also find that grouped targets survived better than isolated targets when both are aposematic, but not when they are non-signalling. To our knowledge, our data provide the first evidence to suggest that avian predators preferentially target peripheral larvae from aggregations, and that prey warning signals enhance predator avoidance of groups.</p>
FIGURE 6 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 6 The temperature inside nests of O. lunifer larvae compared with ambient over a 24 h cycle: (a) tree-hugger nests (n = 9) and (b) ground nests (n = 14). The data point for each nest is the mean of seven to eight consecutive days of measurement.
FIGURE 5 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 5 Ochrogaster lunifer (a) pupa with cocoon cut open and (b) newly emerged adult female of the tree-hugger form.
FIGURE 1 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 1 The egg masses and nests of the two forms of O. lunifer co-occurring at Gatton, QLD: (a) tree-hugger egg mass in the fork of a twig, (b) tree-hugger nest on the trunk of C. tessellaris, (c) three ground egg masses at base of an Acacia sp., and (d) a ground nest.
FIGURE 2 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 2 The confirmed locations of the O. lunifer tree-hugger form and the range of C. tessellaris occurrence in Australia. C. tessellaris data from the Atlas of Living Australia.
FIGURE 3 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 3 The orientation of egg masses and nests of O. lunifer: (a) tree-hugger egg masses, (b) ground-nester egg masses, (c) tree-hugger nests, and (d) ground nests. Dashed line is the mean orientation.
Dataset: Caterpillar Inc. (CAT) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Рис. 3. Гусеница коΛьчатого шеΛкопря- Δа, пораженная вирусом яΔерного поΛиэΔроза. УПН, 2019 г. (фото автора) Fig. 3. Caterpillar of the Lackey moth, killed by the nuclear polyhedrosis virus. SOM, 2019 (photo by author) in Lackey Moth (Malacosoma Neustria L., Lasiocampidae, Lepidoptera) Population During The Eruptive Phase
Рис. 3. Гусеница коΛьчатого шеΛкопря- Δа, пораженная вирусом яΔерного поΛиэΔроза. УПН, 2019 г. (фото автора) Fig. 3. Caterpillar of the Lackey moth, killed by the nuclear polyhedrosis virus. SOM, 2019 (photo by author)
Рис. 1. a — кΛаΔки; б — кокон; в — гнезΔо на ствоΛе Δерева; г — гусеницы (фото автора) Fig. 1. a — clutches; б — cocoon; в — nest on the tree trunk; г — caterpillars (photos by the author) in Lackey Moth (Malacosoma Neustria L., Lasiocampidae, Lepidoptera) Population During The Eruptive Phase
Рис. 1. a — кΛаΔки; б — кокон; в — гнезΔо на ствоΛе Δерева; г — гусеницы (фото автора) Fig. 1. a — clutches; б — cocoon; в — nest on the tree trunk; г — caterpillars (photos by the author)
Рис. 5. Общая схема Δинамики эпизоотии в приамурской попуΛяции коΛьчатого шеΛкопряΔа. ВертикаΛьно: коΛичество погибших гусениц (% от чисΛа собранных за весь периоΔ иссΛеΔований в 2019 г. гусениц). ГоризонтаΛьно: Δата сбора гусениц на территории УПН. — гибеΛь от вируса яΔерного поΛиэΔроза; — гибеΛь от бактериоза Fig. 5. General scheme of the Lackey moth epizootic dynamics for the Cisamurian population. Vertical: number of the deaths, (percentage from the total number of caterpillars collected in 2019 (578 caterpillars)); horizontal: dates of laboratory controls. — death from the NPV; — death from the bacteriosis in Lackey Moth (Malacosoma Neustria L., Lasiocampidae, Lepidoptera) Population During The Eruptive Phase
Рис. 5. Общая схема Δинамики эпизоотии в приамурской попуΛяции коΛьчатого шеΛкопряΔа. ВертикаΛьно: коΛичество погибших гусениц (% от чисΛа собранных за весь периоΔ иссΛеΔований в 2019 г. гусениц). ГоризонтаΛьно: Δата сбора гусениц на территории УПН. — гибеΛь от вируса яΔерного поΛиэΔроза; — гибеΛь от бактериоза Fig. 5. General scheme of the Lackey moth epizootic dynamics for the Cisamurian population. Vertical: number of the deaths, (percentage from the total number of caterpillars collected in 2019 (578 caterpillars)); horizontal: dates of laboratory controls. — death from the NPV; — death from the bacteriosis
Fig. 2 in Host plant resistance in cultivated jute and its wild relatives towards jute hairy caterpillar Spilosoma obliqua (Lepidoptera: Arctiidae)
Fig. 2. Mean number of egg clusters (A) and eggs per cluster (B) laid by Spilosoma obliqua females on 6 jute species in no-choice tests.
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.