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.
199
datasets available to search
ShareScore release 0.7.1
Dataset results
199 results for “natural enemies”
Plant aboveground biomass data: Natural Enemies, Plant Diversity and Plant Community Composition
The purpose of this experiment is to determine the influences of natural enemies, including plant pathogenic fungi and insect pests, influence plant community composition, productivity, and diversity over time. The experiment is being conducted in a subset of plots within the Big Biodiversity field, including monoculture, 2-species, 4-species, 8-species, 16-species, and 32-species plots. There are 5 different treatments: foliar fungicide, soil drench fungicide, foliar insecticide, the combination of all pesticides, and nontreated control. The pesticides are applied repeatedly throughout the growing season. Within the plots, community productivity, species composition, percent cover, and pest damage are being quantified over time.
Plant aboveground biomass data: The influence of natural enemies on plant community composition and productivity
The purpose of this experiment is to determine the influences of natural enemies, including plant pathogenic fungi and insect pests, influence plant community composition, productivity, and diversity over time. The experiment is being conducted in an old field that is burned every other year. Within the old field, there are 8 blocks, and within each block there are 6 treatments: foliar fungicide, soil drench fungicide, foliar insecticide, mammal exclosure, the combination of all enemy suppression tactics (pesticides and mammal exclosure), and a nontreated control. The pesticides are applied repeatedly throughout the growing season. Within the plots, community productivity, species composition, percent cover, and pest damage are being quantified over time.
Plant aboveground biomass data: The influence of natural enemies on plant community composition and productivity
The purpose of this experiment is to determine the influences of natural enemies, including plant pathogenic fungi and insect pests, influence plant community composition, productivity, and diversity over time. The experiment is being conducted in an old field that is burned every other year. Within the old field, there are 8 blocks, and within each block there are 6 treatments: foliar fungicide, soil drench fungicide, foliar insecticide, mammal exclosure, the combination of all enemy suppression tactics (pesticides and mammal exclosure), and a nontreated control. The pesticides are applied repeatedly throughout the growing season. Within the plots, community productivity, species composition, percent cover, and pest damage are being quantified over time.
Instantenous rates of ecosystem carbon fluxes: The influence of natural enemies on plant community composition and productivity
The purpose of this experiment is to determine the influences of natural enemies, including plant pathogenic fungi and insect pests, influence plant community composition, productivity, and diversity over time. The experiment is being conducted in an old field that is burned every other year. Within the old field, there are 8 blocks, and within each block there are 6 treatments: foliar fungicide, soil drench fungicide, foliar insecticide, mammal exclosure, the combination of all enemy suppression tactics (pesticides and mammal exclosure), and a nontreated control. The pesticides are applied repeatedly throughout the growing season. Within the plots, community productivity, species composition, percent cover, and pest damage are being quantified over time.
Native generalist natural enemies and an introduced specialist parasitoid together control an invasive forest insect
<p>Specialized natural enemies have long been considered a major force driving the population dynamics of outbreaking forest insects. While research has traditionally focused on the role of specialist parasitoids, recent studies and reviews reflect an appreciation of complex interactions among many regulatory factors. The sources suggest that specialist parasitoids and generalist predators can each inflict strong top‐down effects and that specialists and generalists can interact to regulate insect herbivore populations. Here we use the model study organism winter moth (<i>Operophtera brumata</i>) in its invasive range in the northeast United States to investigate interactions between the introduced, host-specific tachinid parasitoid <i>Cyzenis albicans</i> and native, generalist pupal predators. Prior research in Canada showed that predation of winter moth pupae increased after <i>C. albicans </i>establishment. To explain this phenomenon, the following hypotheses have been suggested: (1) parasitoids suppress the winter moth population to a density that can be maintained by generalist predators, (2) unparasitized pupae are preferred by predators and thus experience higher mortality rates, or (3) <i>C. albicans </i>sustain higher predator populations throughout the year more effectively than winter moth alone. We tested these hypotheses by deploying winter moth pupae over six years spanning 2005 to 2017 and by modeling pupal predation rates as a function of winter moth density and <i>C. albicans </i>establishment. We also compared predation rates of unparasitized and parasitized pupae and considered additional mortality by a native pupal parasitoid. We found support for the first hypothesis; we detected both temporal and spatial density dependence, but only in the latter years of the study when winter moth densities were lower. We found no evidence for the latter two hypotheses. Our findings suggest that pupal predators have a regulatory effect on winter moth populations only after populations have been reduced, presumably by the introduction of the host-specific parasitoid <i>C. albicans</i>.</p>
Field margins and cropping system influence natural enemies of bean aphids
<p>The data presents beneficial effects of field margin vegetation on natural enemies with reduced aphid infestation in lablab field plots and higher grain yield. The data further shows that cropping system have some influence on natural enemy diversity and abundance.</p>
Scale insects support natural enemies in both landscape trees and shrubs below them
<p>Scale insects are frequently abundant on urban trees. Although scales can worsen tree condition, some tree species tolerate moderate scale densities. Scales are prey for many natural enemies. Therefore, scale-infested trees may conserve natural enemies in their canopies and in nearby plants. We examined if scale-infested oaks—<em>Quercus</em> <em>phellos</em> L.—hosted more natural enemies than scale-uninfested oaks—<em>Q</em>. <em>acutissima</em> Carruth. and <em>Q</em>. <em>lyrata Walter</em> in Raleigh, NC. USA. We also tested if natural enemies were more abundant in holly shrubs (<em>Ilex</em> spp.) planted below scale-infested compared to scale-uninfested oaks. We collected natural enemies from the canopies of both tree types and from holly shrubs planted below these trees. To determine if tree type affected the abundance of natural enemies that passively dispersed to shrubs, we created hanging cup traps to collect arthropods as they fell from trees. To determine if enemies became more abundant on shrubs below scale-infested compared to scale-uninfested trees over short time scales, we collected natural enemies from holly shrubs below each tree type at three to six-day intervals. Scale-infested trees hosted more natural enemies than scale-uninfested trees and shrubs below scale-infested trees hosted more natural enemies than shrubs under scale-uninfested trees. Natural enemy abundance in hanging cup traps did not differ by tree type; however, shrubs underneath scale-infested trees accumulated more natural enemies than shrubs under scale-uninfested trees in six to nine days. Tolerating moderate pest densities in urban trees may support natural enemy communities, and thus biological control services, in shrubs below them.</p>
Figure 7 in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 7. Annual percentage of individual guavas infested with fruit flies on Tahiti. Number of fruits incubated individually each year were: 172 in 2002, 348 in 2003, 539 in 2004, 607 in 2005, 98 in 2006, 4 in 2007, 237 in 2008, and 807 in 2009.
Figure 6a–d in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 6a–d. Quarterly emergences on Tahiti of B. dorsalis and F. arisanus per kg fruit for guava (a), Tahitian chestnut (b), tropical almond (c), and mango (d). See under
Figure 4 in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 4. Annual proportion of fruit fly (B. dorsalis, B. tryoni, B. kirki) and parasitoid (F. arisanus, D. longicaudata) emergences in guava, tropical almond, Tahitian chestnut, and mango fruits for selected years.
Figure 3a, b in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 3a, b. Coconut husk block (a) and BactroMAT-ME (b) bait stations used for eradication of B. dorsalis. (Photos: L. Leblanc).
Figure 1 in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 1. Monthly captures of B. dorsalis in methyl eugenol traps and quarterly percent parasitism on guava, Tahitian chestnut and tropical almond on Tahiti.
Figure 5a–d in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 5a–d. Quarterly emergences on Tahiti of B. dorsalis and F. arisanus per fruit for guava (a), Tahitian chestnut (b), tropical almond (c), and mango (d). Numbers of fruits used for each host and each year (for guava, Tahitian chestnut, tropical almond and mango, respectively) were: 1998: 1634, 16238, 5314, 67; 1999: 264, 304, 993, 404; 2000: 37, 40, 154, 64; 2001: 52, 0, 20, 74; 2002: 492, 1204, 474, 268; 2003: 1531, 1539, 2685, 977; 2004: 2252, 1324, 810, 291; 2005: 1071, 904, 4373, 436; 2006: 1927, 3343, 3140, 1044; 2007: 1537, 1525, 4200, 1814; 2008: 3255, 2648, 5045, 2052; 2009: 1515, 1972, 5475, 549.
Fig. 1 in The red imported fire ant (Hymenoptera: Formicidae) in the West Indies: distribution of natural enemies and a possible test bed for release of self-sustaining biocontrol agents
Fig. 1. Distribution of 2 fire ant microsporidian pathogens (Kneallhazia solenopsae, Vairimorpha invictae) and 2 fire ant viruses (SINV-1, SiDNV) among collections of the red imported fire ant, Solenopsis invicta, from islands in the West Indies. The fire ant RNA viruses SINV-2 and SINV-3 were not detected in any of the collections. The number of collections from monogyne colonies is shown over the total number of collections for each island or island group (Tortola [1/5], St. John [0/1], and St. Thomas [3/4]).
Fig. 1 in Host plants and natural enemies of rugose spiraling whitefly (Hemiptera: Aleyrodidae) in Florida
Fig. 1. County distribution of rugose spiraling whitefly and its key natural enemies (Encarsia spp. and Nephaspis oculata) in Florida.
Fig. 2. Linear regression models showing the relationship between Aphis citricola and Harmonia axyridis abundance. A in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 2. Linear regression models showing the relationship between Aphis citricola and Harmonia axyridis abundance. A: Catnip (Nepeta cataria) + French marigold (Tagetes patula), B: ageratum (Ageratum houstonianum) + French marigold, C: catnip + ageratum, and D: native vegetation.
Fig. 6 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 6. Typical chromatograms obtained from headspace collections of volatiles from French marigold (Tagetes patula) (B) and catnip (Nepeta cataria) (C). A, air control.
Fig. 9 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 9. An Aphis citricola infestation model showing the effects of aromatic plant volatiles. Solid arrows refer to positive effects. Dotted lines refer to negative effect. The thickness of the arrows indicates the magnitude of the effects. The model includes data from this study and the studies by Song et al. (2013) and Chen et al (2014).
Fig. 8 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 8. Response of Harmonia axyridis adults to 12.5 μL/L, 25 μL/L, and 50 μL/L 1:1 mixed D-limonene and terpinolene afer 60 min. A: No aphids; B: aphids present. The numbers of asterisks represent the level of significance: ** highly significant (P <0.01); * significant (P <0.05); n.s. no significant difference.
Fig. 5 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 5. Differences in the number of Harmonia axyridis adults responding to French marigold (Tagetes patula) (A) and catbip (Nepeta cataria) (B) afer 60 min. T: Apple trees + aromatic plants; CK: apple trees. Aphids removed: aphids introduced for 2 h and then removed. The numbers of asterisks represent the level of significance: * significant (P <0.05); n.s. no significant difference.
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.