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48 results for “predator control”
Data from: Evaluating the link between predation and pest control services in the mite world
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Data from: Biological control in winter: novel evidence for the importance of generalist predators
1. The role of generalist predators in pest control has been neglected because generalists are not able to track pest populations. Generalist predators are suggested to be important in spring before specialist predators become active. 2. Here, we show that some generalist predators are important even during winter, when the majority of arthropod pests and their enemies are dormant. We quantified the role of winter-active generalist predators on the suppression of pear psylla during winter using a discrete nonlinear model of an intraguild predation system. 3. To parameterize our model, we conducted a series of experiments on (i) functional responses, (ii) prey preferences and (iii) ontogenetic development and made observations on the population densities of spiders and potential prey. We ran the model for different winter scenarios, that is, for very cold and very warm winters. 4. Synthesis and applications. We found that winter-active predators considerably suppressed the pear psylla population. Predators exerted a stronger effect in a warmer winter than in a colder one. Orchard growers thus should avoid use of non-selective pesticides during this period and instead aim to support the community of generalist predators. Our results suggest more attention should be given to encouraging generalist predator populations in other systems, even in periods when crops are not producing.
Data for: An aggressive non-consumptive effect mediates pest control and multi-predator interactions in a coffee agroecosystem
<p class="MsoNormal">Natural pest control is an alternative to pesticide use in agriculture, which may help to curb insect declines and promote crop production. Non-consumptive interactions in natural pest control, which historically have received far less attention than consumptive interactions, may have distinct impacts on pest damage suppression and may also mediate positive multi-predator interactions. Additionally, when non-consumptive effects are driven by natural enemy aggression, variation in alternative resources for enemies may impact the strength of pest control. Here we study control of the coffee berry borer (CBB), <em>Hypothenemus hampei</em>, by a keystone arboreal ant species, <em>Azteca sericeasur</em>, which exhibits a non-consumptive effect on CBB by throwing them off coffee plants. We conducted two experiments to investigate: 1) if the strength of this behavior is driven by spatial or temporal variability in scale insect density (an alternative resource which <em>Azteca</em> tends for honeydew), 2) if this behavior mediates positive interactions between <em>Azteca</em> and other ground-foraging ants, and 3) the effect this behavior has on the overall suppression of CBB damage in multi-predator scenarios. Our behavioral experiment showed that nearly all interactions between <em>Azteca</em> and CBB are non-consumptive and that this behavior occurs more frequently in the dry season and with higher densities of scale insects on coffee branches. Our multi-predator experiment revealed that borers thrown off coffee plants by <em>Azteca</em> can survive and potentially damage other nearby plants but may be suppressed by ground-foraging ants. Although we found no non-additive effects between <em>Azteca</em> and ground-foraging ants on overall CBB damage, together, both species resulted in the lowest level of plant damage with the subsequent reduction in "spillover" damage caused by thrown CBB, indicating spatial complementarity between predators. These results present a unique case of natural pest control, where damage suppression is driven almost exclusively by non-consumptive natural enemy aggression, as opposed to consumption or prey behavioral changes. Furthermore, our results demonstrate the variability that may occur in non-consumptive pest control interactions when natural enemy aggressive behavior is impacted by alternative resources, and also show how these non-consumptive effects can mediate positive interactions between natural enemies to enhance overall crop damage reduction.</p>
Figure 4 Age-specific predation rate k in Quality control of the predatory mite Euseius scutalis (Acari: Phytoseiidae) againstTetranychus turkestani (Acari: Tetranychidae) over 30 generations of rearing on cattail pollen
Figure 4 Age-specific predation rate k (x), age-specific net predation rate q (x) and cumulative predation rate (Cx) of Euseius scutalis fedTetranychus turkestani before (G0) and after (G10 –G30) long-term rearing on cattail pollen.
Figure 1 in Compatibility between the predators Cryptolaemus montrouzieri (Coleoptera: Coccinellidae) and Chrysoperla externa (Neuroptera: Chrysopidae) in the control of Planococcus citri (Hemiptera: Pseudococcidae) associated with rose crop
Figure 1 Behavior of Cryptolaemus montrouzieri against nymphs and adult females of Planococcus citri. Time averages (%) followed by the same letter do not differ by Tukey's test, P <0.05.
Data from: Biological control in winter: novel evidence for the importance of generalist predators
Open the record for dataset details and reuse information.
Data for: An aggressive non-consumptive effect mediates pest control and multi-predator interactions in a coffee agroecosystem
Open the record for dataset details and reuse information.
Number of drifting and emerging invertebrates under control and predator exposure conditions in an outdoor mesocosm experiment
<p>Predator-prey interactions drive adaptation in aquatic communities, shaping invertebrate behaviour. In response to predation risk, invertebrates may exhibit behavioral changes, such as drifting with the downstream current or altering the timing of emergence to avoid predators. To investigate predator-induced drift behaviour and emergence patterns, we collected drifting and emerging invertebrates from an outdoor mesocosm system (<em>ExStream</em> system) between March and April 2022. The study examined the effects of indirect and direct predation pressure on drift and emergence by recording the number, lowest possible taxonomic resolution, and size of invertebrates. Drift nets attached to the outflow and emergence nets placed over the mesocosms were collected every 24 hours at 4 PM over nine days. Mesocosms were maintained under either control or predator exposure conditions. In the predator exposure treatment, invertebrates were first exposed to elevated chemical cues from fish (<em>Gasterosteus aculeatus</em> and <em>Cottus rhenanus</em>) to simulate indirect predation. On the fifth day after sampling, one <em>Cottus rhenanus</em> was introduced into each predator-treated mesocosm to simulate direct predation.</p>
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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.