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156 results for “biotic interactions”
Broad diversity in monoterpene-sesquiterpene balance across wild sunflowers: implications of leaf and floral volatiles for biotic interactions
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Data from: Maladaptation beyond a geographic range limit driven by antagonistic and mutualistic biotic interactions across an abiotic gradient
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Data from: Biotic interactions contribute to the geographic range limit of an annual plant: herbivory and phenology mediate fitness beyond a range margin
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Climate change drives spatial mismatch and threatens the biotic interactions of the Brazil nut tree
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Data from: The role of climate, water and biotic interactions in shaping biodiversity patterns in arid environments across spatial scales
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The biotic interactions hypothesis partially explains bird species turnover along a lowland Neotropical precipitation gradient
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Do large-scale associations in birds imply biotic interactions or environmental filtering?
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Complex biotic interactions mediated by shrubs: revisiting the stress-gradient hypothesis and consequences for tree seedling survival
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Data from: Combining geostatistical and biotic interactions modelling to predict amphibian refuges under crayfish invasion across dendritic stream networks
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Seed limitation interacts with biotic and abiotic factors to constrain novel species’ impact on community biomass and richness
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Environmental variation and biotic interactions limit adaptation at ecological margins: lessons from rainforest Drosophila and European butterflies
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Scale dependency of joint species distribution models challenges interpretation of biotic interactions
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Data from: Latitudinal patterns of herbivore pressure in a temperate herb support the biotic interactions hypothesis
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Managing biotic interactions during early seagrass life-stages to improve seed-based restoration
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The relative role of climate and biotic interactions in shaping the range limits of a neotropical orchid
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Context dependency of biotic interactions and its relation to plant rarity
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Latitudinal gradient in the intensity of biotic interactions in terrestrial ecosystems: Sources of variation and differences from the diversity gradient revealed by meta-analysis
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Total biomass of two native and one nonnative Eugenia congeners from growth chamber experiment with site, soil microbe, and temperature treatments to test biotic interaction effects of range expansion.
To assess the potential for invasive plants to shift ranges more readily than native plant species, a growth chamber experiment was set up to monitor changes in biomass under different site, temperature, and soil biota treatments. Total biomass (above and belowground) of three Eugenia congeners was assessed by site, soil microbe, and temperature treatments. Of the three congeneric shrub species, two are native to southern and central Florida (Eugenia foetida and E. axillaris,), and one is a non-native invasive from south America (E. uniflora). We measured total biomass for these plant species in growth chambers grown under live and sterile soils from two sites within their current range, and one site in their expected range, simulating current (2010) and predicted future (2050) spring growing season temperatures in the new range. The experiments took place from 2012 - 2013 in University of Central Florida growth chambers.
Data from: The biotic interactions hypothesis partially explains bird species turnover along a lowland Neotropical precipitation gradient
<p><strong>Aim:</strong> We evaluated the influence of climate in determining bird communities along precipitation gradients. We argue that mechanisms responsible for community turnover along precipitation gradients are similar to mechanisms operating along temperature and latitudinal gradients. We test the hypothesis that environmental conditions affect community composition in dry forests, whereas biotic interactions affect community composition in wet forests.</p> <p><strong>Location:</strong> Low-elevation forests along a precipitation gradient in Colombia where precipitation ranges from 700 – 4000 mm annually but elevation and temperature remain constant.</p> <p><strong>Time period:</strong> Present day</p> <p><strong>Major Taxa Studied:</strong> Tropical Forest Birds.</p> <p><strong>Methods:</strong> We performed 291 bird counts in nine study areas across the ~3000 mm precipitation range. In each locality we obtained climatic characteristics, and a phylogenetic, morphological and physiological proxy data set to test predictions about the evolutionary relationships and distribution of traits.</p> <p><strong>Results:</strong> Bird communities changed abruptly along the precipitation gradient and could be divided into dry and wet forest communities. Analyses of phylogenetic relationships, trait space, and observations at nests suggested that environmental filtering is more important in dry forest, especially for breeding. In contrast, we found little evidence that competition was more important in wet forest. Nest predation or competition for nest space, however, may be more critical in wetter forests.</p> <p><strong>Conclusions:</strong> The two distinct bird communities we documented suggest that lowland precipitation gradients, where temperature is constant, can be as important as temperature gradients in generating high beta diversity. We conclude that the breeding process in bird communities might be crucial for determining community assembly along environmental gradients. Given that recent population declines in tropical birds have been attributed to changes in precipitation, by understanding the mechanisms underlying community assembly along precipitation gradients our study may improve our ability to understand those declines and predict the effects of climate change on neotropical avifauna.</p>
Data from: Microhabitat selection in the common lizard: implications of biotic interactions, age, sex, local processes, and model transferability among populations
Modeling species' habitat requirements are crucial to assess impacts of global change, for conservation efforts and to test mechanisms driving species presence. While the influence of abiotic factors has been widely examined, the importance of biotic factors and biotic interactions, and the potential implications of local processes are not well understood. Testing their importance requires additional knowledge and analyses at local habitat scale. Here, we recorded the locations of species presence at the microhabitat scale and measured abiotic and biotic parameters in three different common lizard (Zootoca vivipara) populations using a standardized sampling protocol. Thereafter, space use models and cross-evaluations among populations were run to infer local processes and estimate the importance of biotic parameters, biotic interactions, sex, and age. Biotic parameters explained more variation than abiotic parameters, and intraspecific interactions significantly predicted the spatial distribution. Significant differences among populations in the relationship between abiotic parameters and lizard distribution, and the greater model transferability within populations than between populations are in line with effects predicted by local adaptation and/or phenotypic plasticity. These results underline the importance of including biotic parameters and biotic interactions in space use models at the population level. There were significant differences in space use between sexes, and between adults and yearlings, the latter showing no association with the measured parameters. Consequently, predictive habitat models at the population level taking into account different sexes and age classes are required to understand a specie's ecological requirements and to allow for precise conservation strategies. Our study therefore stresses that future predictive habitat models at the population level and their transferability should take these parameters into account.
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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.
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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.