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235 results for “host-parasite”
FIGURE 6 in Mites of the subgenus Microtimyobia (Acariformes: Myobiidae: Radfordia) and their host-parasite relationships with cricetid rodents (Cricetidae) 2954
FIGURE 6. Radfordia (M.) lemnina (Koch, 1841), details—genital cone of males and setae m.
Data from: Integral Projection Models for host-parasite systems with an application to amphibian chytrid fungus
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Data from: Opportunities and challenges of Integral Projection Models for modeling host-parasite dynamics
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Data from: Effects of epistasis on infectivity range during host-parasite coevolution
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Data from: Spatial heterogeneity lowers rather than increases host-parasite specialization
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Data from: Migration highways and migration barriers created by host-parasite interactions
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Data from: Host-parasite coevolution favours parasite genetic diversity and horizontal gene transfer
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Data from: Hosts are ahead in a marine host-parasite coevolutionary arms race: innate immune system adaptation in pipefish Syngnathus typhle against Vibrio phylotypes
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Data from: Starving the enemy? Feeding behavior shapes host-parasite interactions
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Data from: Speed of adaptation and genomic footprints of host-parasite coevolution under arms race and trench warfare dynamics
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Data from: Running with the Red Queen: host-parasite coevolution selects for biparental sex
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Data from: No measurable fitness cost to experimentally evolved host defense in the Caenorhabditis elegans-Serratia marcescens host-parasite system
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Data from: The evolution of reduced antagonism – a role for host-parasite coevolution
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Data from: Avian brood parasitism and ectoparasite richness – scale-dependent diversity interactions in a three-level host-parasite system
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Gene expression differences underlying genotype-by-genotype specificity in a host-parasite system
GEO Series GSE55035. Bombus terrestris. 16 samples. Type: Expression profiling by high throughput sequencing.
Data from: Stability of a coevolving host-parasite system peaks at intermediate productivity
Habitat productivity may affect the stability of consumer-resource systems, through both ecological and evolutionary mechanisms. We hypothesize that coevolving consumer-resource systems show more stable dynamics at intermediate resource availability, while very low-level resource supply cannot support sufficiently large populations of resource and consumer species to avoid stochastic extinction, and extremely resource-rich environments may promote escalatory arms-race-like coevolution that can cause strong fluctuations in species abundance and even extinction of one or both trophic levels.We tested these ideas by carrying out an experimental evolution study with a model bacterium-phage system (Pseudomonas fluorescens SBW25 and its phage SBW25Φ2). Consistent with our hypothesis, this system was most stable at intermediate resource supply (fewer extinction events and smaller magnitude of population fluctuation). In our experiment, the rate of coevolution between bacterial resistance and phage infectivity was correlated with the magnitude of population fluctuation, which may explain the different in stability between levels of resource supply. Crucially, our results are consistent with a suggestion that, among the two major modes of antagonistic coevolution, arms race is more likely than fluctuation selection dynamics to cause extinction events in consumer-resource systems. This study suggests an important role of environment-dependent coevolutionary dynamics for the stability of consumer-resource species systems, therefore highlights the importance to consider contemporaneous evolutionary dynamics when studying the stability of ecosystems,particularly those under environmental changes.
Experimental habitat fragmentation disrupts host-parasite interaction over decades via life-cycle bottlenecks
Habitat loss and fragmentation are likely to seriously impact parasites, a less studied but critical component of ecosystems, yet we lack long-term experimental evidence. Parasites structure communities, increase connectivity in food webs, and account for a large proportion of an ecosystem's total biomass. Food web models predict that parasites with multiple obligate hosts are at greater risk of extinction because the local extinction, or reduction in abundance, of any host will result in a life-cycle bottleneck for the parasite. We examine the response of a parasite and its multiple hosts to forest fragmentation over 26 years in the Wog Wog Habitat Fragmentation Experiment in southeastern Australia. The parasite is the nematode Hedruris wogwogensis, its intermediate host is the amphipod, Arcitalitrus sylvaticus, and its definitive host is the skink, Lampropholis guichenoti. In the first decade after fragmentation, nematodes completely disappeared from the matrix (plantation forestry) and all but disappeared from their definitive host (skinks) in fragments, and by the third decade after fragmentation had not appreciably recovered anywhere in the fragmented landscape compared to continuous forest. The low prevalence of the nematode in the fragmented landscape was associated with the low abundance of one or the other host in different decades: low abundance of the intermediate host (amphipod) in the first decade and low abundance of the definitive host (skink) in the third decade. In turn, the low abundance of each host was associated with changes to the abiotic environment over time due largely to the dynamically changing matrix as the plantation trees grew. Our study provides rare long-term experimental evidence of how disturbance can cause local extinction in parasites with life cycles dependent on more than one host species through population bottlenecks at any life stage. Mismatches in the abundance of multiple hosts over time are likely to be common following disturbance, thus causing parasites with complex life cycles to be particularly susceptible to habitat fragmentation and other disturbances. The integrity of food webs, communities, and ecosystems in fragmented landscapes may be more compromised than presently appreciated due to the sensitivity of parasites to habitat fragmentation.
Spatial Analysis of Host-parasite Interactions in Cutaneous Leishmaniasis in Ethiopia
ClinicalTrials.gov study NCT05332093. IPD Sharing: YES. Countries: 1. Publications: 0.
Data from: Stability of a coevolving host-parasite system peaks at intermediate productivity
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Experimental habitat fragmentation disrupts host-parasite interaction over decades via life-cycle bottlenecks
Open the record for dataset details and reuse information.
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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.