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1,187 results for “herbivores”
Figure 1 in Seasonality and abundance of Metamasius callizona (Coleoptera: Dryophthoridae), an invasive insect herbivore, on two species of Tillandsia (Bromeliaceae) in Florida
Figure 1. Tillandsia fasciculata is a polycarpic bromeliad with tough leaves.
Seasonality affects specialisation of a temperate forest herbivore community
<p>Understanding spatiotemporal trends on insect-plant interaction networks is essential to unveil the ecological and evolutionary processes driving herbivore specialisation. However, community studies accounting for temporal dynamics in host-plant specialisation of herbivorous insects are surprisingly scarce.</p> <p>Here, we provide the background data which were used to investigate how seasonality affects specialisation of a temperate forest herbivore community. This dataset results from a comprehensive sampling of more than 4,700 folivorous caterpillars associated with 16 deciduous tree species in eastern North America. Specifically, we provide three abundance-based plant-caterpillar interaction matrices. Each interaction matrix represents a six-week period of the growing season. These time periods are defined as follow: early season, midseason, and late season.</p> <p>We observed a significantly less specialised herbivore fauna in the early season than in the two subsequent summer seasons. We further found that the seasonal increase in specialisation was driven by a remarkable turnover in species composition rather than by shifts in guild structure or intraspecific changes in diet breadth of the herbivores.</p>
Drought stress and plant cultivar type affect demographic responses of herbivorous insects: a case study with the rose-grain aphid, Metopolophium dirhodum, (Hemiptera: Aphididae)
<p>Raw data files of "the effect of water stress on demographic features of aphid <em>Metopolophium dirhodum on two cultivars"</em></p>
Soil chemistry determines whether defensive plant secondary metabolites promote or suppress herbivore growth
<p><span>Plant secondary (or specialized) metabolites mediate important interactions in both the rhizosphere and the phyllosphere. If and how such compartmentalized functions interact to determine plant-environment interactions is not well understood. Here, we investigated how the dual role of maize benzoxazinoids as leaf defenses and root siderophores shapes the interaction between maize and a major global insect pest, the fall armyworm. We find that benzoxazinoids suppress fall armyworm growth when plants are grown in soils with very low available iron but enhance growth in soils with higher available iron. Manipulation experiments confirm that benzoxazinoids suppress herbivore growth under iron-deficient conditions and in the presence of chelated iron, but enhance herbivore growth in the presence of free iron in the growth medium. This reversal of the protective effect of benzoxazinoids is not associated with major changes in plant primary metabolism. Plant defense activation is modulated by the interplay between soil iron and benzoxazinoids but does not explain fall armyworm performance. Instead, increased iron supply to the fall armyworm by benzoxazinoids in the presence of free iron enhances larval performance. This work identifies soil chemistry as a decisive factor for the impact of plant secondary metabolites on herbivore growth. It also demonstrates how the multifunctionality of plant secondary metabolites drives interactions between abiotic and biotic factors, with potential consequences for plant resistance in variable environments. </span></p>
Supplementary material 1 from: Donovan MP, Wilf P, Iglesias A, Cúneo NR, Labandeira CC (2023) Insect herbivore and fungal communities on Agathis (Araucariaceae) from the latest Cretaceous to Recent. PhytoKeys 226: 109-158. https://doi.org/10.3897/phytokeys.226.99316
Descriptions of DT421 (new damage type), DT86, and DT116
Niche partitioning shaped herbivore macroevolution through the early Mesozoic dataset
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Within-crown variability in herbivore performance and leaf traits
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Soil chemistry determines whether defensive plant secondary metabolites promote or suppress herbivore growth
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Data from: Interactions between plant defence signalling pathways: evidence from bioassays with insect herbivores and plant pathogens
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Data from: Preference for outbred host plants and positive effects of inbreeding on egg survival in a specialist herbivore
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Data from: Risky roots and careful herbivores: Sustained herbivory by a root-feeding herbivore attenuates indirect plant defences
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Data from: Geographic structure and adaptive population differentiation in herbivore defense genes in European aspen (Populus tremula L., Salicaceae)
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Data from: Hemiparasites can transmit indirect effects from their host plants to herbivores
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Data from: Rensch's rule in large herbivorous mammals derived from metabolic scaling
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Impact of wildlife culling on the physiological stress and space use of a social herbivore
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Data from: Relaxation of herbivore-mediated selection drives the evolution of genetic covariances between plant competitive and defense traits
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Data from: Mammalian herbivores affect leafhoppers associated with specific plant functional types at different timescales
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Data from: Climate warming and plant biomechanical defences: silicon addition contributes to herbivore suppression in a pasture grass
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Unprecedented biting performance in herbivorous fish: how the complex biting system of Pomacentridae circumvents performance trade-offs
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Data from: Transcriptome sequencing and microarray development for the woodrat (Neotoma spp.): custom genetic tools for exploring herbivore ecology
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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.