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226 results for “Plant phenology”
Chronic selection for early reproductive phenology in an annual plant across a steep, elevational gradient of growing season length
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Data from: Prairie plant phenology driven more by temperature than moisture in climate manipulations across a latitudinal gradient in the Pacific Northwest, USA
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Data from: pollinators limit seed production in an early blooming rare plant: evidence of a mismatch between plant phenology and pollinator emergence
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Climate seasonality drives ant-plant-herbivore interactions via plant phenology in an extrafloral nectary-bearing plant community
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The niche through time: Considering phenology and demographic stages in plant distribution models
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Phenological turnover matters when making trait-based predictions of plant-pollinator interactions
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Plant and bird phenology and plant occurrence from 1851 to 2020 (non-continuous) in Thoreau’s Concord, Massachusetts
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Data from: Phenological plasticity is a poor predictor of subalpine plant population performance following experimental climate change
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Data from: Invertebrate phenology modulates the effect of the leaf economics spectrum on litter decomposition rate across 41 subtropical woody plant species
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Data from: Induced phenological avoidance: a neglected defense mechanism against seed predation in plants
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Phenological status of plants in the very tropical dry forests of Curaçao
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Successional and phenological effects on plant-floral visitor interaction networks of a tropical dry forest
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Warming reduces mid-summer flowering plant reproductive success through advancing fruiting phenology in an alpine meadow
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Auxiliary supplementary material for the study on plant diversity relationships with satellite-detected phenological variability in USA wetlands at a national scale
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Plant aboveground biomass data: Vegetation Phenology and Grasshopper Competition
Vegetation was sampled at the termination of the experiment on June 25, 1989. Grasshopper densities outside the cages were sampled on May 23 and 24, 1989. After the first experiment, cages were set up on new plots 3m from the edge of the macroplot to avoid using vegetation disturbed by counting. On July 25, adult grasshoppers of two different species (Melanoplus femur-rubrum (FR) and Melanoplus bivattatus (BV)) were stocked according to the above treatments (randomly reassigned) in the following densities: FR by itself, 6/cage; BV by itself, 4/cage; FR and BV together, 4 FR and 3 BV /cage. Vegetation was sampled at the termination of the experiment on August 31, 1989. In late May of 1990, grasshoppers were stocked in the following numbers in both fertilized and unfertilized plots: no grasshoppers (empty cages), AC by itself (5/cage), PA by itself (4/cage), and both species together (3 of each). With 8 replicates of each fertilizer x grasshopper combination, a total of 64 cages were used. Vegetation was sampled at the end of the experiment as in 1989. In late July of 1990, two new grasshopper species were used in addition to Melanoplus femur-rubrum (MF): Phoetaliotes nebrascensis (PN) and Spharagemon collare (SC). Grasshoppers were stocked in the following numbers: no grasshoppers (empty cages), MF by itself (6/cage), PN by itself (10/cage), SC by itself (6/cage), MF + PN (3 MF and 5 PN per cage), MF + SC (3 of each per cage), SC + PN (3 SC + 5 PN per cage), and all three species together (2 MF, 2 SC, and 3 PN per cage). Vegetation was sampled at the end of the experiment as in 1989. At the end of the early and late 1990 experiments, a single soil sample was taken from each cage plot and analyzed for soil solution ammonium and nitrate with 0.02M KCl. For a list of treatments, see the treatment layouts in file trmte60.
Non-continuous reproductive phenology of animal-dispersed species in young forest restoration plantings
<p class="MsoNoSpacing">Tree species that produce resources for fauna are recommended for forest restoration plantings to attract pollinators and seed dispersers; however, information regarding the flowering and fruiting of these species during early growth stages is scarce. We evaluated the reproductive phenology of animal-dispersed tree species widely used in Atlantic Forest restoration. We marked 16 animal-dispersed tree species in 3- to 8-year-old forest restoration plantings in Itu-São Paulo, southeast Brazil. We noted the age of the first reproductive event, flowering and fruiting seasonality, percentage of trees that reached reproductive stages, and intensity of bud, flower, and fruit production for each species. Flowering and fruiting are seasonal for most species; only two, <i>Cecropia pachystachya</i> and <i>Ficus guaranitica,</i> exhibited continuous flowering and fruiting throughout the year; we also identified <i>Schinus terebinthifolia </i>and<i> Dendropanax cuneatus </i>fruiting in the dry season during resource scarcity. Therefore, we recommend all as framework species, that is, species that are animal-dispersed with early flowering and fruiting potential, for forest restoration. Further, we recommend identifying and planting similar animal-dispersed tree species that produce fruits constantly or in the dry season to maximize fauna resource availability throughout the year in tropical forest restoration plantings.</p>
Chronicle of Nature - Phenology of Plants of Kerzhenskiy State Nature Biosphere Reserve
Plants Phenology dataset compiled in the context of Chronicle of Nature program in Kerzhenskiy State Nature Biosphere Reserve (Russian Federation) consisting of 835 records collected during 16 years between 2000 and 2016.
Herbivore phenology can predict response to changes in plant quality by livestock grazing
<p>Livestock grazing can have a strong impact on herbivore abundance, distribution and community. However, not all species of herbivores respond the same way to livestock grazing, and we still have a poor understanding of the underlying mechanisms driving these differential responses. Here, we investigate the effect of light intensity cattle grazing on the abundance of two grasshoppers (<i>Euchorthippus cheui</i> and <i>E. unicolor</i>) that co-occur in the same grasslands and feed on the same food plant (the dominant grass <i>Leymus chinensis</i>). The two grasshopper species differ in phenology so that their peak abundances are separated into early- and late-growing seasons. We used an exclosure experiment to monitor grasshopper abundance and food quality in the field under grazed and ungrazed conditions, and performed feeding trials to examine grasshopper preference for grazed or ungrazed food plants in the laboratory. We found that the nitrogen content of <i>L. chinensis</i> leaves continuously declined in the ungrazed areas, but was significantly enhanced by cattle grazing over the growing season. Cattle grazing facilitated the early-season grasshopper <i>E. cheui, </i>whereas it suppressed<i> </i>the late-season grasshopper <i>E. unicolor</i>. Moreover, feeding trials showed that <i>E. cheui</i> preferred <i>L. chinensis</i> from grazed plots, while <i>E. unicolor</i> preferred the leaves from ungrazed plots. We conclude that livestock grazing has opposite effects on the two grasshopper species, and that these effects may be driven by grazing-induced chagnes in plant nutrient content and the unique nutritional niches of the grasshoppers. These results suggest that insects that belong to the same guild can have opposite nutrient requirements, related to their distinct phenologies, and that this can ultimately affect their response to cattle grazing. Our results show that phenology may link insect physiological needs to local resource availabilities, and should be given more attention in future work on interactions between large herbivores and insects.</p>
Data from: Specialization and phenological synchrony of plant–pollinator interactions along an altitudinal gradient
1. One of the most noticeable effects of anthropogenic climate change is the shift in timing of seasonal events towards earlier occurrence. The high degree of variation in species' phenological shifts has raised concerns about the temporal decoupling of interspecific interactions, but the extent and implications of this effect are largely unknown. In the case of plant–pollinator systems, more specialized species are predicted to be particularly threatened by phenological decoupling, since they are assumed to be less flexible in the choice of interaction partners, but until now this hypothesis has not been tested. 2. In this paper, we studied phenology and interactions of plant and pollinator communities along an altitudinal gradient in the Alps as a model for the possible effects of climate change in time. 3. Our results show that even relatively specialized pollinators were much more flexible in their use of plant species as floral resources than their local flower visitation suggested. We found no relationship between local specialization of pollinators and the consistency of their visitation patterns across sites, and also no relationship between specialization and phenological synchrony of pollinators with particular plants. 4. Thus, in contrast to the conclusions of a recent simulation study, our results suggest that most pollinator species included in this study are not threatened by phenological decoupling from specific flowering plants. However, the flexibility of many rarely observed pollinator species remains unknown. Moreover, our results suggest that specialized flower visitors select plant species based on certain floral traits such as the length of the nectar holder tube. If that is the case, the observed flexibility of plant–pollinator interactions likely depends on a high degree of functional redundancy in the plant community, which may not exist in less diverse systems.
Data from: The seasonal climate niche predicts phenology and distribution of an ephemeral annual plant, Mollugo verticillata
1.Many short-lived species complete their life cycles during brief seasonal windows of favorable environmental conditions. Such species may persist in the face of climate warming by migration to track their seasonal climate niche in space and/or by phenological shifts to track favorable conditions in time within the year. To describe the seasonal climate niche of the short-lived annual Mollugo verticillata in California, we used data from herbarium specimens and historic climate records to estimate environmental conditions at the location, month and year of each collection. 2.We used these data in a MaxEnt framework to construct a seasonal species distribution model (SDM) of the species' climate niche within the total climate space available across all seasons and locations in California. The model provides fine-scale spatial and temporal predictions of habitat suitability, predicting both where and when the species should be observed. 3.We compared the predictions of the model to those from a conventional SDM based on mean annual climate data. Both models showed that M. verticillata is limited to warm environments within California. However, the seasonal SDM also predicted phenology by mapping climate suitability across the state for each month of the year. Mollugo verticillata is limited to warm months, and its seasonal climate niche shifts in space across California in the course of the year. 4.We used the seasonal SDM to map the predicted future species distribution for each month of the year under three warming scenarios. The species is predicted to expand its range and occur earlier in the year in most locations; in the warmest locations seasonal suitability is predicted to decline in the warmest months, which may result in bimodal phenology with a mid-summer gap. 5.Synthesis - We developed a novel species distribution model using herbarium records and monthly weather data, which predicts not only where a short-lived species should be found, but when during the year it is predicted to occur in those areas. This model can be used to predict how climate change will affect the species distribution in space as well as seasonal phenology across the landscape.
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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.