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211 results for “plant ecology”
Above ground plant, belowground stem and root biomass in Arctic Long-term Ecological Research's 2006 moist acidic tussock tundra experimental sites, 2012, Toolik Lake, Alaska.
Above ground plant, belowground stem and root biomass was measured in moist acidic tussock tundra experimental sites established in 2006 by the Arctic Long-term Ecological Research site (ARC-LTER. Control plots and plots amended with three different levels of nitrogen(N) and phosphorus(P), F10 (10 g/m2 N and 5 g/m2 P); F5 (5 g/m2 N and 2.5 g/m2 P); F2 (2 g/m2 N and 1 g/m2 P), were sampled.
Candida Pseudoglaebosa Ecology in Sarracenia Purpurea Pitcher Plants at Harvard Forest since 2021
Fungi and bacteria are common members of the microbiomes of carnivorous plants. In the pitcher plant Sarracenia purpurea these microorganisms enter carnivorous pitchers shortly after pitchers develop, and may be relevant for pitcher functioning. We are sampling pitchers repeatedly over several years to better understand the culturable diversity in this habitat, with a focus on the common pitcher yeast Candida pseudoglaebosa and fungi that have the potential to interact with it. C. pseudoglaebosa dominates pitcher plants by arriving early in pitchers, and we are interested in how this yeast’s populations change over time and in response to other pitcher microorganisms. Between 2021 and 2023, we collected pitcher water from Tom Swamp in Harvard Forest and cultured 118 yeast and bacteria colonies from this water. We have found C. pseudoglaebosa and some other yeasts (Papiliotrema, Rhodotorula, and Sporidiobolus); microbial identification is ongoing. We are planning to investigate changes in C. pseudoglaebosa genetic diversity and changes in C. pseudoglaebosa interactions with other pitcher microorganisms over time.
Phenology of flowers and leaves following experimental warming in the initiation and maturation years for 7 understory boreal plants at the Bonanza Creek Long Term Ecological Research (BNZ LTER) site in Interior Alaska: 2017-2019
This dataset contains the results of experimental warming of flower and leaf buds for 7 understory boreal plants: Rhododendron groenlandicum, Rosa acicularis, Rubus chamaemorus, Shepherdia canadensis, Viburnum edule, Vaccinium uliginosum, and Vaccinium vitis-idaea. Plants in two cohorts were subjected to one of four treatments: warming in the initiation year (the year prior to flowering or leaf-out) only, warming in the maturation year (the year of flowering or leaf-out) only, warming in both years, or no warming (controls). The timing of flowering (both cohorts) and leaf-out (usually one cohort) was monitored. We also tracked developmental stages of the flower bud primordia using repeated desctructive sampling followed scanning electron microscopy throughout the initiation years. Environmental data associated with the plots, including air temperature throughout the summer, soil temperature and depth of ground thaw in late May, and canopy cover, are also reported.
warmXtrophic: plant community responses to the individual and interactive effects of climate warming and herbivory across multiple years at Kellogg Biological Station Long-Term Ecological Research Sites (KBS LTER), Michigan, USA, and University of Michigan Biological Station (UMBS), Michigan, USA.
Climate change has both direct and indirect effects on ecological communities. Whereas most climate change ecology experiments manipulate abiotic drivers to measure direct effects of climate on species or communities, fewer quantify the indirect effects through biotic interactions, especially over multiple sites and years. In this factorial experiment we manipulate temperature through open-top chambers, and the level of insect herbivory through insecticide. At two early successional field sites separated by 3 degrees of latitude and 3°C of mean annual temperature (University of Michigan Biological Station, Pellston, MI and Kellogg Biological Station, Hickory Corners, MI), 6 replicate 1-m2 plots per treatment were installed in May 2015. 12 plots per site are at ambient temperature, 12 are warmed with year-round non-UV filtering polycarbonate and wood frame construction OTCs for tall-stature plants (Welshofer et al. 2018 MEE). Insecticide reduces insect herbivory in half the plots (Welshofer et al. 2018 Oecologia). Over the course of the experiment, OTCs warmed the plant communities by 1.9°C-3.0°C on average over the growing season. Each year, through 2021, plant traits and community responses were measured at the species level: plant phenology (green-up, flowering, flowering duration, seed set); plant percent cover (aerial % cover of the 1m2 plot); plant traits (specific leaf area, C and N content), herbivory damage to leaves, and plant species biomass (only in 2021). Further methodological details are found within each response variable metadata. This experiment is ongoing and further data package updates are planned. L0 data is available upon request. R scripts can be found here: https://github.com/SpaCE-Lab-MSU/warmXtrophic. The biotic and abiotic community context and relative strengths of direct vs. indirect effects may yield ecological surprises under climate change unless addressed together. Large-scale experiments like this one can improve our ability to unde
Ecological memory effects on plants and soils in early post-fire steppe, Barton Ecological Research Area, Pocatello, Idaho, 2021
In many regions of the world, wildfires are becoming more frequent due to the invasion of exotic grasses that are highly flammable and often replace native plants as burned landscapes regrow. To prevent invasive species from dominating post-burn landscapes, land managers are increasingly applying seeds of native plants to suppress invasive plants and encourage ecosystem recovery. However, there is still much to learn about the ability of seeded species to establish and suppress flammable invaders. It is also unclear how previous human-caused landscape changes, such as nitrogen pollution or the removal of shrubs (a common practice in western USA rangelands), affect the success of native seed additions and plant recovery from fire. This study addresses these issues by building on a long-term experiment investigating the legacy effects of past nitrogen pollution and shrub removal in a highly invaded sagebrush steppe ecosystem at Idaho State University’s Barton Ecological Research Area in Pocatello, ID. This experiment burned in a wildfire in August, 2020, providing a unique opportunity to evaluate how a history of nitrogen pollution and shrub removal influences plant recovery from wildfire. We developed three native seed mixes intended to suppress invasive plants, particularly flammable annual grasses, and in April, 2021, we sowed the experimental mixes into research plots within the original experiment. To measure the initial effects of the experimental seed additions and the legacy effects of previous nitrogen pollution and shrub removal, we collected the data provided here during the summer of 2021, the first growing season following the wildfire. We established 240 monitoring quadrats (1 m²) within the original experiment, dividing the quadrats between areas where shrubs had formerly been (evidenced by stumps) and intershrub areas. At a microhabitat scale, the presence of shrubs alters soil properties and can create legacy effects after shrub death, and we were int
Rethinking the fundamental unit of ecological remote sensing: Estimating individual level plant traits at scale
<p>derived data of leaf and plant structural traits for two National Ecological Observatory Network (NEON) Airborne Observatory Platform (AOP) sites. Dataset contains spatial explicit information for 4.5 million trees, and include: Nitrogen (%mass), Phosphorus (%mass), Leaf mass per area (g m<sup>-2</sup>), diameter at breast height (cm), crown area (m2), tree height (m) and other physical topographic variables (Albedo, Elevation, Slope, Aspect). data are associated to the </p>
Structure and composition and carbon Stocks of woody plant community in assisted and unassisted ecological succession in a Tamaulipan thornscrub, Mexico
<p>In November of 2017, the structure and composition of woody plant communities were investigated through a floristic composition and diversity evaluation on three areas: a control area, an assisted ecological succession area and an unassisted ecological succession area.</p>
Relative percent cover of plant species for years 2012-2017 in the Arctic Long-term Ecological Research (ARC-LTER) 1989 moist acidic tundra (MAT89) experimental plots, Toolik Field Station, Alaska.
Relative percent cover of plant species was measured in ARC-LTER 1989 moist acidic tundra experimental plots. Treatments include Control (CT), Nitrogen Phosphorus (NP), Nitrogen (N), Phosphorus (P), and Greenhouse Control (GHCT). In 1996 on unassigned plots, an experiment that manipulate herbivory presence and nutrients was started. Treatments include Control Unfenced (NFCT), Nitrogen Phosphorus Unfenced (NFNP), and Small Fenced Control (CTSF). Not all treatments were measured each year.
Sevilleta Long Term Ecological Research Program Plant Species List
Sevilleta Long-Term Ecological Research Program has monitored plant species cover, height, abundance (counts), and biomass since 1999. This list represents the plant species found at the Sevilleta, including those species featured in long-term datasets on plant abundance and biomass. Species codes have been updated to the most recent taxonomic designations by the U.S. Department of Agriculture (plants.sc.egov.usda.gov), and are listed by their kartez codes, or character and number symbols.
Fig. 5 in Distribution patterns of selected insect populations on their host plants - an ecological study
Fig. 5: Determination of the grade of aggregation (k) according to two independent methods (see text) and illustration of the relationship between k and xm: (a) greenflies (first method), (b) sap beetles (first method), (c) greenflies (second method), (d) sap beetles (second method).
Fig. 4 in Distribution patterns of selected insect populations on their host plants - an ecological study
Fig. 4: Mean values and standard deviations of the x/s2 ratios for a more detailed differentiation of m the animal distribution patterns. According to the results greenflies and sap beetles colonizing the upper parts of the nettle are distinguished by aggregated distribution patterns, whilst sap beetles residing on the lower parts of the nettle are characterized by a more regular distribution. Mealybugs tend to develop random distribution patterns.
Silene seeds from the Laboratory of Plant Ecology and Adaptation, University of Lodz (Poland)
<p>Seeds of <em>Silene </em>for the analysis of morphology (Martín Gómez et al.) obtained from the Laboratory of Plant Ecology and Adaptation, University of Lodz (Poland)Photos contains 40 seeds of:</p> <p><em>S. dioica</em>; <em>S. latifolia</em>; <em>S. latifolia</em> ssp. <em>alba </em>(x2); <em>S. mellifera</em>; <em>S. nutans </em>ssp.<em> dubia; S. uniflora.</em></p>
Dataset from Pardini, E. A., Parsons, L. S., Ştefan, V., & Knight, T. M. (2018). GLMM BACI environmental impact analysis shows coastal dune restoration reduces seed predation on an endangered plant. Restoration Ecology, 26(6), 1190-1194.
<p>Data and its metadata used in the analysis from the publication: Pardini, E. A., Parsons, L. S., Ştefan, V., & Knight, T. M. (2018). GLMM BACI environmental impact analysis shows coastal dune restoration reduces seed predation on an endangered plant. Restoration Ecology, 26(6), 1190-1194. <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/rec.12678">https://onlinelibrary.wiley.com/doi/full/10.1111/rec.12678</a> </p>
Figures 10–19 in New larval host plants and ecological observations on North American Cerambycidae (Coleoptera)
Figures 10–19. Larval host plants of Cerambycidae. 10) An old log of Quercus alba covered with lichens and mosses that harbored Typocerus lugubris, exit holes in the inset. 11–12) Quercus sp. stem girdled by Aneflomorpha fisheri. 13) Elongated future emergence hole of Aneflus paracalvatus in Prosopis velutina (holes of A. calvatus in Senegalia greggii are similar). 14) Fig. 13 after removal of a layer of wood – plug in the turn is visible, remnants of the tunnel leading to the plug can be seen due to their darker color. 15) Sclerotized terminal segment of Aneflus levettei larva (dorsal view). 16) Larva of Aneflus calvatus (ventral view) with the terminal segment bearing spikes but not having the area between them sclerotized. 17) Holes along a branch of Quercus emoryi through which Atylostagma glabra expelled frass. 18) Empty central tunnels of A. glabra (split branch from Fig. 17). 19). Future emergence holes of A. glabra on a branch of Quercus emoryi.
Figures 1–7 in New larval host plants and ecological observations on North American Cerambycidae (Coleoptera)
Figures 1–7. Larval host plants of Cerambycidae. 1–2) Decayed branches of Fagus grandifolia utilized by Sphenostethus taslei, emergence hole is in Fig. 1, exposed larva in a gallery in Fig. 2. 3–4) Stump of Prunus serotina with emergence holes from Lepthorhabdium pictum. 5) Quercus falcata with a basidiocarp of Phellinus everhartii and an emergence hole from Stenelytrana emarginata (enlarged in the inset). 6) Quercus emoryi with resupinate basidiocarp of Inonotus andersonii. 7) Old emergence holes of Stenelytrana splendens in an oak with an old resupinate basidiocarp of Inonotus andersonii.
Figures 20–26 in New larval host plants and ecological observations on North American Cerambycidae (Coleoptera)
Figures 20–26. Larval host plants of Cerambycidae. 20) Galleries of Haplidus laticeps in Vachelia constricta. 21) One sealed opening in a branch of Quercus used by larvae of Metaleptus batesi to expel frass (enlarged in inset). 22) Exit holes of Obrium rubidium on a dead limb of Robinia pseudoacacia (enlarged in inset). 23) Galleries of O. rubidium on a cross-section. 24) Elongated exit holes of Smodicum cucujiforme in a scar on living Quercus (enlarged in the inset). 25) A pile of yellow granular frass around a base of living Mimosa expelled by larvae of Stenaspis solitaria. 26) Pink pupa of Sternidius alpha.
Data for manuscript: Ecological lags govern the pace and outcome of plant community responses to 21st century climate change
<p>These data were used in the analyses reported in Block et al. "Ecological lags govern the pace and outcome of plant community responses to 21st century climate change".</p>
Fig. 3 in Ornithological Fauna Of The Waste Water Treatment Plants In The Northern Left Bank Ukraine (Chernihiv And Kyiv Regions): Winter Populations And Ecological Structure
Fig. 3. Similarity clusters of bird populations' species composition in winter according to the water treatment facilities' biotopic zones: 1 — zone of water bodies; 2 — dam zone; 3 — technological zone 4 — meadows agricultural zone.
R_JAGS code for estimation and analysis of species-area-relationship (SAR) parameters from NEON (National Ecological Observatory Network) data on plant surveys
<p><span>Invasive species science is heavily geared toward the invasive agent. </span>However, management to protect native species also requires a proactive approach focused on understanding the features affecting community vulnerability to invasion impacts<span>. </span><span>Vulnerability </span><span>is likely the result of </span><span>factors acting across spatial scales, from </span><span>local to regional, and it is the combined effects of these factors that will determine the magnitude of vulnerability.</span><span> We introduce an analytical framework that quantifies the scale-dependent impact of biological invasions from the shape of the native species-area-relationship (SAR). We leverage newly available, biogeographically extensive vegetation data from the US National Ecological Observatory Network to assess plant community vulnerability to invasion impact as a function of factors acting across scales. We analyzed more than 1000 SARs widely distributed across the USA along environmental gradients and under different levels of invasion. </span>Results show that a decrease in native richness is consistently associated with invasive species cover<span>, but it is only at relatively high levels of invasion that native richness is compromised. After accounting for variation in baseline ecosystem diversity, net primary productivity, and human modification, ecoregions that are colder and wetter seem to be most vulnerable to losses of native plant species at the local level, while warmer and wetter areas seem most susceptible at the landscape level. We also document how the combined effects of cross-scale factors result in a heterogenous spatial pattern of vulnerability. </span><span>This pattern </span><span>cannot be predicted by analyses at any single scale, underscoring the importance of accounting for factors acting across scales. Simultaneously assessing differences in vulnerability between distinct plant communities at local, landscape and regional scales provided outputs that can be used to inform policy and management aimed at reducing vulnerability to the impact of plant invasions.</span></p>
Data from: Global plant ecology of tropical ultramafic ecosystems
<p>This is a compiled geospatial dataset in ESRI polygon shapefile format of ultramafic soils of the neotropics showing the location of ultramafic soils in Guatemala, Cuba, Dominican Republic, Puerto Rico, Costa Rica, Colombia, Argentina, Chile, Venezuela, Ecuador, Brazil, Suriname, French Guiana, and Bolivia. The data are derived from seven geospatial datasets. Original datasets were subset to include only ultramafic areas, datasets were assigned a common projection (WGS84), attribute tables were reconciled to a common set of fields, and the datasets were combined.</p> <p>The dataset includes three components: 1) a geospatial dataset in ESRI polygon shapefile format of ultramafic soils of the neotropics showing the location of ultramafic soils in Guatemala, Cuba, Dominican Republic, Puerto Rico, Costa Rica, Colombia, Argentina, Chile, Venezuela, Ecuador, Brazil, Suriname, French Guiana, and Bolivia. 2) A regional-specific bibliography for all tropical ultramafic regions discussed in the original manuscript (Garnica-Diaz et al. 2022), and 3) an updated list in .csv format of major ultramafic outcrops worldwide including their latitude and longitude coordinates. </p>
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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.