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451 results for “food webs”
Pattern of seasonal variation in rates of predation between spider families is temporally stable in a food web with widespread intraguild predation
<p>Intraguild predation (IGP) – predation between generalist predators (IGPredator and IGPrey) that potentially compete for a shared prey resource – is a common interaction module in terrestrial food webs. Understanding temporal variation in webs with widespread IGP is relevant to testing food web theory. We investigated temporal constancy in the structure of such a system: the spider-focused food web of the forest floor. Multiplex PCR was used to detect prey DNA in 3,300 adult spiders collected from the floor of a deciduous forest during spring, summer, and fall over four years. Because only spiders were defined as consumers, the web was tripartite, with 11 consumer nodes (spider families) and 22 resource nodes: 11 non-spider arthropod taxa (order- or family-level) and the 11 spider families. Most (99%) spider-spider predation was on spider IGPrey, and ~90% of these interactions were restricted to spider families within the same broadly defined foraging mode (cursorial or web-spinning spiders). Bootstrapped-derived confidence intervals (BCI's) for two indices of web structure, restricted connectance and interaction evenness, overlapped broadly across years and seasons. A third index, % IGPrey (% IGPrey among all prey of spiders), was similar across years (~50%) but varied seasonally, with a summer rate (65%) ~1.8x higher than spring and fall. This seasonal pattern was consistent across years. Our results suggest that extensive spider predation on spider IGPrey that exhibits consistent seasonal variation in frequency, and that occurs primarily within two broadly defined spider-spider interaction pathways, must be incorporated into models of the dynamics of forest-floor food webs. </p>
Data from: Changes in Invertebrate Food Web Structure Between High- and Low-productivity Environments are Driven by Intermediate but Not Top Predator Diet Shifts
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Data for: Richness, food webs structures and ecosystem functioning
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Environmental and food web determinants of Lake Trout mercury concentrations in Ontario Lakes
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Ecological data for: Subsidy accessibility drives asymmetric food web responses
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Data for: Landscape diversity promotes stable food web architectures in large rivers
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Data from: Rainforest conversion to plantations fundamentally alters energy fluxes and functions in canopy arthropod food webs
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A parasite-inclusive food web for the California rocky intertidal zone
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Dataset for: Integrated trophic position as a proxy for food-web complexity
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Data for: Top-down control and species composition non-linearly influence the short-term response of experimental food webs to a nutrient pulse perturbation
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Food webs coupled in space: Consumer foraging movement affects both stocks and fluxes
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Invasive spread in meta-food-webs depends on landscape structure, fertilization and species characteristics
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Disentangling ecological and taphonomic signals in ancient food webs
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Riparian forests shape trophic interactions in detrital stream food webs
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A global synthesis on land-cover changes in watersheds shaping freshwater detrital food webs
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Changes in vertical and horizontal diversities mediated by the size structure of introduced fish collectively shape food-web stability
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Pattern of seasonal variation in rates of predation between spider families is temporally stable in a food web with widespread intraguild predation
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Data for: Herbivores’ impacts cascade through the brown food web in a dryland
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Data from: Impacts of nutrient subsidies on salt marsh arthropod food webs: a latitudinal survey
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Stable motifs delay species loss in simulated food webs
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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.