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96 results for “rarity”
Data from: Visualizing connectivity of ecological and evolutionary concepts – an exploration of research on plant species rarity
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Data from: Commonness, rarity and oligarchies of woody plants in the tropical dry forests of Mexico
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Interspecific hybridization and island colonization history, not rarity, most strongly affect the genetic diversity in a clade of Mascarene-endemic trees
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Data from: Rarity and incomplete sampling in DNA-based species delimitation
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Data from: Assessing current genetic status of the Hainan gibbon using historical and demographic baselines: implications for conservation management of species of extreme rarity
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Data for: The paradoxical rarity of a parasitic fruit fly fungus attacking a broad range of hosts
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Data from: Importance of biotic niches versus drift in a plant-inhabiting arthropod community depends on rarity and trophic group
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Data from: Multiscale patterns of rarity in fungi, inferred from fruiting records
Aim: It is unknown whether fungi show similar trends to other organisms in their macroecological patterns of abundance and spatial distribution. Here, we investigated fungal abundance-occupancy relationships to determine whether fungi that are common at a local scale tend to be more widely distributed. Location: UK and Switzerland Time period: 1950 - 2014 Major taxa studied: Fungi Methods: We used a local dataset of fruiting records of 2,319 species in the UK, accumulated over 65 years, and one from Switzerland of 319 species, spanning 32 years. Using record number and occurrence as proxies for abundance, in each case we examined the form of species and rank abundance distributions, and compared these with distributions of records in the national databases over the same time. We plotted relationships of local number of records and regional occupancy, and calculated multi-scale indices of rarity for all fungal species. Results: There was a remarkable congruence in the patterns found in the UK and Switzerland. Regional assemblages are characterised by many rare species, while few are common (fitting the lognormal distribution). However, at local scales, distributions best fitted a power law, suggesting that habitat availability or dispersal processes may play important roles. Fungi with high local record number are densely distributed nationally, but unlike other organisms, locally rare fungi may also be densely distributed at a wider scale. Main conclusions: Fungal fruiting records can be used to infer patterns in fungal distributions. Abundances in local assemblages may be determined by the position of the assemblage in the overall geographic range of each species, dispersal ability and environmental filtering. We advocate the use of multiscale approaches to rarity in future fungal sampling programmes, to provide more reliable information for future conservation policy decisions and fungal biogeography.
Data from: Commonness and rarity of alien and native plant species – the relative roles of intraspecific competition and plant–soil feedback
The success of invasive alien and common native species may be explained by the same underlying mechanisms. Differences in intraspecific competition as well as differences in plant–soil feedback have been put forward as potential determinants of plant success. We teased apart the relative roles of competition and plant–soil feedback in a greenhouse experiment with 30 common and rare alien and native species from nine plant families. We tested whether plant biomass decreased less for common than rare species, regardless of origin, when grown at higher relative frequencies (1, 3 or 6 out of 9 plants per pot) in a community and in soil previously conditioned by the same species at different frequencies (0, 1, 3 or 6 out of 9 plants per pot) in an orthogonal design for these two factors. Plant survival decreased slightly, but non-significantly, for all species when grown in soil previously occupied by conspecifics. Among surviving plants, we found a decrease in biomass with increasing intraspecific competition across all species (regardless of origin or commonness), and alien species were more negatively affected by previous high plant frequency than native species, but only marginally significantly so. Our findings suggest that, while intraspecific competition limits individual biomass in a density-dependent manner, these effects do not depend on species origin or commonness. Notably, alien species but not natives showed a decrease in performance when grown in soil pre-conditioned with a higher frequency of conspecifics. In conclusion, soil-borne pathogen accumulation might be weak in its effects on plant performance compared to intraspecific competition, with neither being clearly linked to species commonness.
Supplementary material 2 from: Macko P, Derka T, Šamulková M, Novikmec M, Svitok M (2023) Checklist, distribution, diversity, and rarity of mayflies (Ephemeroptera) in Slovakia. ZooKeys 1183: 39-64. https://doi.org/10.3897/zookeys.1183.109819
Altitudinal distribution of mayfly species in Slovakia
Supplementary material 1 from: Macko P, Derka T, Šamulková M, Novikmec M, Svitok M (2023) Checklist, distribution, diversity, and rarity of mayflies (Ephemeroptera) in Slovakia. ZooKeys 1183: 39-64. https://doi.org/10.3897/zookeys.1183.109819
Details of the collection data of mayflies in Slovakia from 1905 to 2021
Data from: Commonness and rarity of alien and native plant species – the relative roles of intraspecific competition and plant–soil feedback
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Data from: Whole genome duplication in coast redwood (Sequoia sempervirens) and its implications for explaining the rarity of polyploidy in conifers
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Data from: Multiscale patterns of rarity in fungi, inferred from fruiting records
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Data from: The rarity of size-assortative mating in animals: assessing the evidence with anuran amphibians
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FIGURE 3 in Extending rarity: discovery of the rare braconine genus, Carinibracon van Achterberg (Hymenoptera: Braconidae) in the Oriental region with the description of a new species from south India
FIGURE 3. Carinibracon danielssoni van Achterberg, female, holotype; A) Habitus, in lateral view; B) Head, in anterior view; C) Head, in lateral view; D) Mesosoma and metasoma, in dorsal view; E) Metasomal tergite 1, in dorsal view.
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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)
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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.