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.
41
datasets available to search
ShareScore release 0.7.1
Dataset results
41 results for “Biotic resistance”
Timing of invasive species removal influences nonnative biotic resistance and trajectories of community reassembly
<p><span>As biological invasions increasingly threaten biodiversity, the removal of invasive nonnative species emerges as a possibility to recover the structure and function of native communities. Yet, we have limited knowledge of how communities assemble after nonnative removals. Since most ecosystems are invaded by multiple nonnative species, the impact of their removal likely depends on the interactions among nonnative species which, in turn, are contingent on the environmental context in which they occur. </span></p> <p><span>We evaluated the community assembly after the targeted removal of two highly invasive shrubs, Sweetbriar rose (<em>Rosa</em> <em>rubiginosa</em>) and Scotch broom (<em>Cytisus</em> <em>scoparius</em>). The removal was performed at two different times in the growing season (early or late removal) in field and mesocosm communities. In search of general patterns across species, we modeled species responses as a function of their origin (i.e., native / nonnative) and functional traits. </span></p> <p><span>We found evidence for negative and asymmetric interactions between dominant invasive species that translated into changes in the abundances of the rest of the species in the community. Depending on the identity of the removed species, the removal of invasive species affected community assembly by promoting other nonnative species or hindering the performance of native species. These effects were modulated by the timing of removal and did not depend on leaf or seed traits.</span></p> <p><span><em>Synthesis</em>: Accounting for nonnative interactions and their temporal dependency should </span><span>improve our inferences about assembly processes and the effectiveness of nonnative </span><span>removal </span><span>aimed at reduci</span><span>ng the accumulation of nonnatives.</span><span> <br></span></p>
Calcareous defense structures of prey mediate the effects of predation and biotic resistance towards the tropics
Open the record for dataset details and reuse information.
Data from: Biotic resistance to tropical ornamental invasion
Open the record for dataset details and reuse information.
Data from: Is biotic resistance enhanced by natural variation in diversity?
Open the record for dataset details and reuse information.
Timing of invasive species removal influences nonnative biotic resistance and trajectories of community reassembly
Open the record for dataset details and reuse information.
Using semiochemicals to predict biotic resistance and facilitation of invading phytophagous insects
Open the record for dataset details and reuse information.
Data from: Functional trait differences and trait plasticity mediate biotic resistance to potential plant invaders
1. Biotic resistance represents an important natural barrier to potential invaders throughout the world, yet the underlying mechanisms that drive such resistance are still debated. In theory, native communities should repel both functionally similar invaders which compete for the same resources, and invaders which possess less competitive traits. However, environmental stress, trade-offs across vital rates and competition-induced plastic trait shifts may modify expected competitive outcomes, thereby influencing invasion dynamics. 2. In order to test these theoretical links between trait distributions and biotic resistance, we performed a mesocosm experiment with 25 non-native ornamental species invading native plant communities. Each non-native species was grown with and without the native community under two watering treatments (regular and reduced). We measured biotic resistance as the difference in performance of non-native individuals grown with and without the community in terms of their survival, growth and reproduction. We quantified overall functional dissimilarity between non-native ornamental individuals and native communities based on the combination of plant height, specific leaf area and seed mass. Then, assuming each of these traits is also potentially linked to competitive ability, we measured the position of non-natives on trait hierarchies. While height is positively correlated with competitive ability for light interception, conservative leaf and seed characteristics provide greater tolerance to competition for other resources. Finally, we quantified plastic trait shifts of non-native individuals induced by competition. 3. Indeed, the native community repelled functionally similar individuals by lowering their survival rate. Simultaneously, shorter ornamental individuals with larger specific leaf areas were less tolerant to biotic resistance from the community across vital rates, although the effect of trait hierarchies often depended on watering conditions. Finally, non-natives responded to competition by shifting their traits. Most importantly, individuals with more competitive traits were able to overcome biotic resistance also through competition-induced plastic trait shifts. 4. Synthesis. Our results highlight that both functional dissimilarity and trait hierarchies mediate biotic resistance to ornamental plant invaders. Nevertheless, environmental stress as well as opposing trends across vital rates are also influential. Furthermore, plastic trait shifts can reinforce potential invaders' competitive superiority, determining a positive feedback.
Data from: Does natural variation in diversity affect biotic resistance?
1. Theories linking diversity to ecosystem function have been challenged by the widespread observation of more exotic species in more diverse native communities. Few studies have addressed the key underlying process by dissecting how community diversity is shaped by the same environmental gradients that determine biotic and abiotic resistance to new invaders. 2. In grasslands on highly heterogeneous soils, we used addition of a recent invader, competitor removal, and structural equation modelling (SEM) to analyse soil influences on community diversity, biotic and abiotic resistance, and invader success. 3. Biotic resistance, measured by reduction in invader success in the presence of the resident community, was negatively correlated with species richness and functional diversity. However, in the multivariate SEM framework, biotic resistance was independent of all forms of diversity, and was positively affected by soil fertility via community biomass. Abiotic resistance, measured by invader success in the absence of the resident community, peaked on infertile soils with low biomass and high community diversity. Net invader success was determined by biotic resistance, consistent with this invader's better performance on infertile soils in unmanipulated conditions. 4. Seed predation added slightly to biotic resistance without qualitatively changing the results. Soil-related genotypic variation in the invader also did not affect the results. 5. Synthesis In natural systems, diversity may be correlated with invasibility and yet have no effect on either biotic or abiotic resistance to invasion. More generally, the environmental causes of variation in diversity should not be overlooked when considering the potential functional consequences of diversity.
Data from: Biotic resistance to an alien amphibian: larval competition between Japanese frogs and invasive cane toads
Understanding negative effects of native species on introduced taxa may suggest novel ways to control the invasive species by enhancing such effects. Previous studies have reported that the larvae of invasive cane toads (Rhinella marina) are suppressed by competition with the larvae of native anurans in Australia, but not in North America. We conducted laboratory trials to measure the effect of exposure to the larvae of Japanese frogs (Microhyla ornata, Fejervarya sakishimensis, Rhacophorus owstoni) on rates of survival, growth and development of cane toad tadpoles in Ishigaki Island, in southern Japan. Survival rates were not affected by native species, but competition with Dicroglossids and Rhacophorids (but not Microhylids) strongly reduced rates of growth and development in the tadpoles of cane toads. Dicroglossid tadpoles also reduced the body condition to toad tadpoles in addition to effects on SVL and mass. Encouraging populations of native frogs in toad-invaded areas of Japan thus may help to reduce the numbers of invasive cane toads.
Data from: Does natural variation in diversity affect biotic resistance?
Open the record for dataset details and reuse information.
Data from: Organic farming promotes biotic resistance to food-borne human pathogens
Open the record for dataset details and reuse information.
Data from: Exploring the biotic homogenisation and diversity resistance hypotheses: the understorey of non-native and native woodland canopies in three urban areas of Europe
Open the record for dataset details and reuse information.
Data from: Plant traits and plant biogeography control the biotic resistance provided by generalist herbivores
Open the record for dataset details and reuse information.
Data from: Functional trait differences and trait plasticity mediate biotic resistance to potential plant invaders
Open the record for dataset details and reuse information.
Data from: Biotic resistance to an alien amphibian: larval competition between Japanese frogs and invasive cane toads
Open the record for dataset details and reuse information.
CsIND regulates vascular formation and resistance to biotic and abiotic stresses in cucumber (Cucumis sativus L.)
GEO Series GSE86496. Cucumis sativus. 8 samples. Type: Expression profiling by high throughput sequencing.
Genomic profile of maize response to A. flavus infection identifies genes associated with biotic and abiotic resistance
GEO Series GSE9546. Zea mays. 8 samples. Type: Expression profiling by array.
Data from: Mechanisms of biotic resistance across complex life cycles
1. Biotic resistance is the ability of communities to inhibit the establishment, spread or impact of novel species. However, the interactions that underlie biotic resistance depend heavily on the contexts in which species interact. Consequently, studies of biotic resistance that consider single processes, patches, species or life-history stages may provide an incomplete picture of the capacity for communities to resist invasion. 2. Many organisms have multiphasic life cycles, where individuals can occupy distinct niches at different stages of the life-history. Generally, studies of biotic resistance focus on interactions within a single life-history stage, and interactions at other life-history stages are overlooked. Here, we demonstrate that different mechanisms of biotic resistance occur across the life history and together limit the invasion success of an introduced marine invertebrate (Ciona intestinalis) in northern California. 3. We tested the role of interactions (competition and predation) with the resident community in limiting the abundance of Ciona through experiments conducted on fertilization, larval survival, settlement, early post-settlement survival, and the survival of juveniles and adults. 4. Under some circumstances, Ciona became abundant in mid-successional stages and showed more rapid growth rates than a morphologically similar native species, Ascidia ceratodes. However, predators reduced Ciona abundance much more than that of Ascidia at several life stages. 5. Furthermore, Ciona appeared to be a weaker competitor at the adult stage. Early life-history interactions with other sessile species at the fertilization, larval and recruit stages had modest to no effects on Ciona abundance. 6. The presence of biotic resistance mechanisms acting at multiple life stages, and potentially under different conditions, suggests that different components of biotic resistance interact to enhance the resident community's resistance to invasion.
Data from: Mechanisms of biotic resistance across complex life cycles
Open the record for dataset details and reuse information.
Data from: Loss of biotic resistance and high propagule pressure promote invasive grass-fire cycles
Open the record for dataset details and reuse information.
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.