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2,052 results for “tree species”
Data from: Tree species and genetic diversity increase productivity via functional diversity and trophic feedbacks
<p><span>This data was collected in the species × genetic diversity experiment of the Biodiversity–Ecosystem Functioning Experiment China Platform (BEF-China, <a href="http://www.bef-china.com/">www.bef-china.com</a>). This data set includes four species (<em>Alniphyllum fortunei</em>, <em>Cinnamanum camphora</em>, <em>Daphniphyllum oldhamii</em>, and <em>Idesia polycarpa</em>) with the mother trees of all tree individuals known, and </span><span>the offspring from the same mother tree was defined as a seed family. In total, 92 subplots with 4 tree diversity levels were included: species diversity (1 or 4 species) and genetic diversity (1 or 4 seed families per species) which resulted in four tree diversity levels: one species with one seed family (1.1), one species with four seed families (1.4), four species with one seed family per species (4.1) and four species with four seed families per species (4.4). For tree functional traits, five leaf functional traits were measured in 2017 and 2018, including leaf area (LA), specific leaf area (SLA), chlorophyll content (CHL), leaf nitrogen content (LN), and leaf carbon content (LC). Herbivory was visually recorded as leaf damage in 2017. Soil fungal diversity was used as proxies for unspecified trophic interactions. Soil samples were taken on subplot level for the 1.1 and 1.4 diversity treatments, but on plot level for the 4.1 and 4.4 diversity treatments in 2017. Tree community productivity was summed by the biomass of individual trees in each subplot and individual tree biomass (kg) was calculated using the biomass equation (H × BA × CV) of the BEF-China experiment, where CV is a correction factor for stem shape and wood density.</span></p>
Model outputs and species-level data for "Functional traits and climate drive interspecific differences in disturbance-induced tree mortality"
<p>This repository is divided in three sub-directories: </p> <ul> <li><em><strong>sensitivity </strong></em>contains the posterior of each parameter estimated by the bayesian mortality model in a rdata file. This file was generated by the script https://github.com/jbarrere3/SalvageModel/tree/withFinland</li> <li><em><strong>climate </strong></em>contains for each tree species the climatic variables (mean annual temperature, minimum annual temperature and annual precipitation) extracted from CHELSA and the disturbance-related climatic indices (Fire Weather Index, Snow Water Equivalent and Gust Wind Speed)</li> <li><em><strong>traits </strong></em>contains the traits calculated directly with NFI data (bark thickness, height to dbh ratio, maximum growth), and a text file with the Species and Trait ID to request to TRY database. </li> </ul> <p>The content of this repository can be used to reproduce the analyses of the paper, with the script stored in in https://github.com/jbarrere3/DisturbancePaper</p> <p><strong>Edit (19/09/2023):</strong> A minor coding error was found in the pre-formatted data of the paper, which did not affect the main results but led to minor change in the value of the posterior estimates. An updated version of the posterior estimates of this dataset was made available at https://zenodo.org/record/8358921. </p>
Aligned DNA sequence matrix for phylogenetic analyses in the article "A new species of spiny-backed tree frog, genus Osteocephalus (Anura: Hylidae), from the Yanachaga Chemillén National Park in central Peru"
<p>Aligned DNA sequence matrix for phylogenetic analyses of the article "Systematics of Huicundomantis, a new subgenus of Pristimantis (Anura, Strabomantidae) with extraordinary cryptic diversity and eleven new species"</p> <p>The matrix is in NEXUS format and has 14791 bp and 38 terminals.</p> <p>Partitions are as follows:</p> <p>charset 12S_16S = 1-2442;<br> charset mtGenome_other_genes = 2443-9180; charset nonCoding = 3132- 3138 4776- 4857 5203- 5214;<br> charset codonPos1 = 2443-3130\3 3139-4774\3 4858-5200\3 5215-9178\3;<br> charset codonPos2 = 2444-3131\3 3140-4775\3 4859-5201\3 5216-9179\3;<br> charset codonPos3 = 2445-3129\3 3141-4773\3 4860-5202\3 5217-9180\3;<br> charset 16S_ND1nonCoding = 9181- 9428 10390- 10506 ;<br> charset 16S_ND1codonPos1 = 9429-10389\3;<br> charset 16S_ND1codonPos2 = 9430-10387\3;<br> charset 16S_ND1codonPos3 = 9431-10388\3;<br> charset POMCcodonPos1 = 10507-11068\3;<br> charset POMCcodonPos2 = 10508-11066\3;<br> charset POMCcodonPos3 = 10509-11067\3;<br> charset CO1codonPos1 = 11069-12608\3;<br> charset CO1codonPos2 = 11070-12609\3;<br> charset CO1codonPos3 = 11071-12610\3;<br> charset CytbcodonPos1 = 12611-13757\3;<br> charset CytbcodonPos2 = 12612-13758\3;<br> charset CytbcodonPos3 = 12613-13759\3;<br> charset ND2codonPos1 = 13760-14789\3;<br> charset ND2codonPos2 = 13761-14790\3;<br> charset ND2codonPos3 = 13762-14791\3;</p>
Tree species Waititu (New Zealand) UAV imagery and reference data (raw)
<p>This dataset includes drone (Uncrewed Aerial Vehicles, UAV) orthomosaics of three plots (each plot covers approx. 100 by 100 m) acquired in November 2017 in Waititu (Fjordland) New Zealand. The resolution (ground sampling distance) of the orthomosaics amounts to approx. 2-3 cm. The orthomosaics feature RGB information and an estimated canopy height (normalized digital surface model, nDSM). The canopy height was derived by subtracting digital surface models (DSM) with digital terrain models (DTM). The DTMs were estimated from the lowest points. Details are given in the publication below.</p> <p>The orthomosaics are partially labelled (polygon shapefiles) for the two tree species, which are <em>Metrosideros umbellata</em>, an angiosperm of the Myrtaceae and <em>Dacrydium cupressinum,</em> a gymnosperm of the Podocarpaceae. The two species are abbreviated as <em>metumb </em>and <em>daccup</em>, respectively. The covered forests are primary forests with a high species richness and endemism.</p> <p>Each orthomosaic comes with an AOI (area of interest, polygon shapefile) that indicates the areas where the labelling was performed. Within the extent of this AOI the two tree species are assumed to be completely delineated (by visual interpretation guided with insitu data; details see publication below).</p> <p>For visual inspection of the imagery we recommend to generate image pyramids since the image data has a very high spatial resolution.</p> <p>Details on the dataset are mentioned in the corresponding publication:</p> <p>Kattenborn, T., Eichel, J., Wiser, S., Burrows, L., Fassnacht, F. E., & Schmidtlein, S. (2020). Convolutional Neural Networks accurately predict cover fractions of plant species and communities in Unmanned Aerial Vehicle imagery. <em>Remote Sensing in Ecology and Conservation</em>, <em>6</em>(4), 472-486.</p> <p><a href="https://doi.org/10.1002/rse2.146">https://doi.org/10.1002/rse2.146</a></p> <p><a href="https://www.sciencedirect.com/science/article/abs/pii/S0034425719301166">https://zslpublications.onlinelibrary.wiley.com/doi/full/10.1002/rse2.146</a></p> <p> </p> <p>Acknowledgements: The data acquisition was funded by the Catalyst: Leaders program financed by the New Zealand Ministry of Business, Innovation and Employment (MBIE) and administered by the Royal Society of New Zealand and the MBIE Strategic Science Investment Fund to Manaaki Whenua-Landcare Research</p>
Root functional traits determine the magnitude of the rhizosphere priming effect among eight tree species
<p><span>Rhizosphere priming effect </span>can accelerate or decelerate the decomposition of soil organic matter. Using a natural abundance <sup>13</sup>C tracer method allowing partitioning of native soil organic carbon (SOC) decomposition and plant rhizosphere respiration, we studied the effects of eight tree species on the strength of the rhizosphere priming. All tree species enhanced the rate of SOC decomposition, by 82% on average. <span>M</span><span>ean diameter of first-order roots and root exudate-derived respiration</span><span> were positively correlated with the RPE</span><span>, together explaining a large part of the observed variation in the RPE (<em>R<sup>2</sup></em> = 0.72), whereas root branching density was negatively associated with the RPE. Path analyses further suggested that mean diameter of first-order roots was the main driver of the RPE owing to its positive direct effect on the RPE and its indirect effects via root exudate-derived respiration and root branching density. </span>These results demonstrate that the magnitude of the RPE is regulated by complementary aspects of root morphology, architecture and physiology, implying that comprehensive approaches are needed to reveal the multiple mechanisms driving plant effects on the RPE.</p>
Parameter estimation and species tree rooting using ALE and GeneRax
<p>Some output files associated with the analyses in an article (currently) entitled "Parameter estimation and species tree rooting using ALE and GeneRax"</p> <p>The outputs were obtained by running ALEml_undated either with default (maximum likelihood) estimation of the delta, tau, and lambda parameters, or with delta:tau fixed to a pre-defined ratio. The option to fix delta:tau (or other parameter combinations) was recently added to ALE (https://github.com/ssolo/ALE).</p> <p>The .ale files used as input for these analyses (for the bacterial dataset) are available from the data repository for the original 2021 paper here: https://doi.org/10.6084/m9.figshare.12651074.v12</p> <p> </p>
Imprint of tree species mycorrhizal association on microbial-mediated enzyme activity and stoichiometry
<p>1. Understanding the effects of tree species and their mycorrhizal association on soil processes is critical for predicting the ecosystem consequences of species shifts owing to global change and forest management decisions. While it is well established that forests dominated by different mycorrhizal types can vary in how they cycle carbon (C), nitrogen (N) and phosphorus (P), the degree to which these patterns are driven by microbial-mediated enzyme activity (EA) and ecoenzymatic stoichiometry (ES) remain elusive.</p> <p>2. Here, we synthesized the effects of mycorrhizal association on seven soil enzymes involved in microbial C, N and P acquisition and ES using data from 56 peer-reviewed papers.</p> <p>3. We found that relative to soil in ectomycorrhizal (EcM) trees, soil in arbuscular mycorrhizal (AM) trees exhibited greater activity of some C acquisition enzymes (e.g., beta-glucosidase; BG) and higher ecoenzymatic ratios of BG/NAG (N-acetyl-glucosaminidase) and BG/AP (acid phosphatase). These results supported that AM trees had rapid C and nutrient turnover rates, inorganic nutrient economics and high soil microbial C limitation. We also found evidence for an organic nutrient economy and greater soil microbial demand for nutrients in EcM trees compared to AM trees. In addition, the effect of mycorrhizal association on the activity of certain soil enzymes and enzymatic stoichiometry (i.e., BG and BG/NAG ratio) appeared to be associated with the differences in soil pH, phylogenetic group (i.e., conifers and broadleaves) and leaf habit (i.e., evergreen and deciduous) between AM and EcM trees.</p> <p>4. The results from the global meta-analysis suggested that soil EA and ES appear to play critical roles in shaping the differences in the nutrient economy between AM and EcM tree species, but leaf morphology and soil conditions should be considered in evaluations of soil processes in forests of different mycorrhizal associations. Given that most of the studies in the database were from the temperate and subtropical regions, further research in other biomes is needed to elucidate the underlying mechanisms driving the mycorrhizal effect at the global scale. </p>
Species-level phylogenetic trees of all angiosperm species (100 trees)
<p>One hundred species-level trees of all angiosperms (zip file) comprising all 329,798 species recognized by version 6 of the World Checklist of Vascular Plants. Details of how these trees were compiled is provided, as well as a spreadsheet listing the familial and ordinal assignation of each species in the trees. </p> <p> </p>
Comparative transcriptomics reveals divergence in pathogen response gene families amongst twenty forest tree species
<p>Forest trees provide critical ecosystem services for humanity that are under threat due to ongoing global change. Measuring and characterizing genetic diversity is key to understanding adaptive potential and developing strategies to mitigate negative consequences arising from climate change. <span>In the area of forest genetic diversity, genetic divergence caused by large-scale changes at the chromosomal level has been largely understudied. In this study, </span>we used the RNA-seq data of twenty co-occurring forest tree species from genera including <em>Acer, Alnus, Amelanchier, Betula, Cornus, Corylus, Dirca, Fraxinus, Ostrya, Populus, Prunus, Quercus, Ribes, Tilia, </em>and<em> Ulmus </em>sampled from Upper Peninsula of Michigan. These data were used to infer the origin and maintenance of gene family variation, species divergence time, as well as gene family expansion and contraction. We identified a signal of common whole genome duplication events shared by core eudicots. We also found rapid evolution, namely fast expansion or fast contraction of gene families, in plant-pathogen interaction genes amongst the studied diploid species. Finally, the results lay the foundation for further research on the genetic diversity and adaptive capacity of forest trees, which will inform forest management and conservation policies.</p>
Large leaf hydraulic safety margins limit the risk of drought-induced leaf hydraulic dysfunction in Neotropical rainforest canopy tree species
<p>The sequence of key water potential thresholds from the onset of water stress to mortality, and the timing of stomatal closure with regard to leaf xylem embolism formation are essential to characterizing plant adaptive strategies to drought. This constitutes a critical knowledge gap for tropical rainforest species, which may be less vulnerable to drought than previously thought.</p> <p>We recorded key leaf and stem water potential thresholds, leaf hydraulic safety margins (HSMleaf), leaf stomatal safety margins (SSMleaf) and estimated native embolism levels during a normal-intensity dry season across 18 Neotropical rainforest tree species. We also solved a sequence of key water potential thresholds. Additionally, we provide a cross-biome analysis of SSMleaf encompassing 97 species from four major biomes based on a literature survey.</p> <p>In the studied rainforest species, leaf turgor loss point, used as a surrogate for stomatal closure, typically occurred before the onset of leaf xylem embolism. Most species exhibited positive HSMleaf and SSMleaf, with contrasting values across species and nearly absent embolism levels during the dry season irrespective of the experienced midday leaf water potentials. Our results point out that leaf xylem embolism is not routine for Neotropical rainforest tree species.</p> <p>Based on our proposal of the water potential sequence for tropical rainforest trees, we argue that leaf xylem embolism is a rare event for these species. This was supported by the literature survey, indicating that across biomes, most woody species have rather large SSM<sub>leaf</sub> and that leaves of tropical rainforest trees are not necessarily more vulnerable than in other biomes. However, we found evidence that some tropical rainforest species may be more vulnerable than others to ongoing climate change. Our data provide an opportunity to parametrize tree-based or land-surface models for tropical rainforests.</p>
Exotic tree species have consistently lower herbivore load in a cross-Atlantic tree biodiversity experiment
<p>It is commonly expected that exotic plants experience reduced herbivory, but experimental evidence for such enemy release is still controversial. One reason for conflicting results might be that community context has rarely been accounted for, although the surrounding plant diversity may moderate enemy release. Here, we tested the effects of focal tree origin and surrounding tree diversity on herbivore abundance and leaf damage in a cross-Atlantic tree diversity experiment in Canada and Germany. We evaluated six European tree species paired with six North American congeners in both their native and exotic range, expecting lower herbivory for the exotic tree species in each pair at each site. Such reciprocal experiments have long been called for, but have not been realized thus far. In addition to a thorough evaluation of overall enemy release effects, we tested whether enemy release effects change with the surrounding tree diversity. Herbivore abundance was indeed consistently lower on exotics across all six tree genera (12 comparisons). This effect of exotic status was independent of continent, phylogenetic relatedness and surrounding tree diversity. In contrast, leaf damage associated with generalist leaf chewers was consistently higher on North American tree species. Interestingly, several species of European weevils were the most abundant leaf chewers on both continents and the dominant herbivores at the Canadian site. Thus, most observed leaf damage likely reflects the effect of generalist herbivores that feed heavily on plant species they have not evolved with. At the German site, sap-suckers were the dominant herbivores and showed a pattern consistent with enemy release. Taken together, the consistently lower herbivory on exotics on both continents is not purely a pattern of enemy release in the strict sense, but to some degree additionally reflects the susceptibility of native plants to invasive herbivores. In conclusion, our cross-Atlantic study is consistent with the idea that non-native trees have generally reduced herbivory, regardless of tree community diversity and species identity, but for different reasons depending on the dominant herbivore guild.</p>
Light-demanding tree species are more susceptible to lianas than shade-tolerant tree species in a subtropical secondary forest
<ol> <li> <span>Tree-tree competition has been widely studied as a mechanism responsible for maintaining forest plant species diversity</span><span>.</span><span> Other common plant types, such as lianas, may influence tree species competition. Previous studies reported the negative effects of lianas on trees; however, variation in susceptibility to lianas among tree species and the species-specificity of liana species for tree hosts remain unclear. If lianas have species-specific interactions with trees, based either on tree or liana species identity, then lianas may influence tree-tree interactions by altering tree species-specific competitiveness. </span> </li> <li> <span>We surveyed 5,676 lianas</span><span> (DBH </span><span>≥ </span><span>0.5 cm</span><span>)</span><span> and </span><span>61,538 trees </span><span>(DBH </span><span>≥ </span><span>1 cm</span><span>)</span><span> in a 12-ha subtropical secondary forest</span><span> plot to assess </span><span>liana-tree interactions</span><span>.</span><span> We</span><span> tested </span><span>variation among the 20 most common tree species in their </span><span>susceptibility to lianas,</span><span> including whether light-demanding and shade-tolerant tree species differed. </span><span>We</span><span> quantified liana-tree network structure and</span><span> evaluated the specificity between the 20 most common tree species and the 15 most common liana species. </span><span>We expected that: (1) </span><span>tree species would vary in their susceptibility to lianas, and the extent of this </span><span>variation</span><span> would be predicted by tree shade-tolerance; and (2) </span><span>liana species would have distinct species-specific interactions with host trees. </span> </li> <li> <span>Tree species differed greatly in their susceptibility to lianas, with some tree species accumulating many more lianas than others. Light-demanding tree species particularly had greater susceptibility to lianas than shade-tolerant tree species. Both the liana-tree network structure and the interaction </span><span>intensity</span><span> between the 15 liana species and 20 tree species showed distinct specialization of liana-tree interactions. </span> </li> <li><span><em>Synthesis</em>. Variation in tree species' susceptibility to lianas implies that lianas may alter tree species-specific competitive abilities by disproportionately affecting some tree species more than others. In contrast to studies in neotropical forests, light-demanding tree species were more susceptible to lianas than shade-tolerant tree species, suggesting that lianas could reduce light-demanding tree performance in this forest. The distinct species specialization between liana and tree species suggests that increases in the relative abundance of liana species, which is occurring in many forests, may alter the tree community by reducing the relative abundance of preferred host tree species. </span></li> </ol>
Local coexistence and genetic isolation of three pollinator species on the same fig tree species
Molecular tools increasingly reveal cryptic lineages and species that were previously unnoticed by traditional taxonomy. The discovery of cryptic species in sympatry prompts the question of how they coexist in the apparent absence of ecological divergence. However, this assumes first that the molecular taxonomy used to identify cryptic lineages delimits species boundaries accurately. This issue is important, because many diversity studies rely heavily or solely on data from mitochondrial DNA sequences for species delimitation, and several factors may lead to poor identification of species boundaries. We used a multilocus population genetics approach to show that three mtDNA-defined cryptic lineages of the fig wasp Pleistodontes imperialis Saunders, which pollinate Port Jackson figs (Ficus rubiginosa) in north-eastern Australia, represent reproductively isolated species. These species coexist locally, with about 13% of figs (where mating occurs) containing wasps from two or three species. However, there was no evidence for gene flow between them. Confirmed cases of coexisting cryptic species provide excellent opportunities for future studies of the ecological and evolutionary forces shaping both species coexistence and fig/pollinator coevolution.
Data for: Tree species size class patterns portend compositional shifts and low resilience in managed northern hardwood forests
<p><span>Declining biodiversity is a global challenge to sustainability and resilience of ecosystems facing multiple novel stressors, including climate change and invasive pests-pathogens. Northern hardwood forests (NHF) of the Great Lakes region have experienced declines in canopy tree diversity since European colonization, with current tree regeneration patterns in some areas suggesting perpetuation of this trend. However, regional (10<sup>6</sup> ha) patterns and possible causes are underexplored. To address this information gap, we used data from 141 managed NHF stands, Michigan, USA to examine diversity indices across tree size classes (seedling, sapling, and canopy); stand-level drivers of regeneration (seedling and sapling) diversity and individual species density; and patterns among species in relative abundances across size classes. Diversity was similar across size classes (mean asymptotic species richness of 6 – 7 species and <3 effective common species); however, some species contributing to sapling diversity are unlikely to contribute to future canopy diversity (<em>Fraxinus americana </em>and<em> Fagus grandifolia</em>, insect/pathogen limited; <em>Ostrya virginiana, </em>small maximum size). For the 11 most common species, conspecific canopy density (+, significant for 11 seedlings, 11 species) and stand basal area (-, saplings, 3 species) were the most consistent drivers of density, with less consistent effects for deer use, site quality, and substrate. Patterns of relative density by size class among the 18 species present on > 10 % of sites were consistent with theories of establishment or recruitment limitations due to deer browsing, deep shade, or limited suitable substrate. For seven species (including e.g., <em>Tsuga canadensis</em><span>, </span><em>Betula alleghaniensis, Populus grandidentata, Tilia americana</em><span>)</span>, relative abundance was lowest in the seedling layer and increased in larger size classes, <span>suggesting seedling establishment substrate and/or early shade mortality limitations. For two species (<em>Acer saccharum, Quercus rubra.</em>), patterns of reduced sapling relative abundance compared to seedling or canopy strata suggests a sapling recruitment bottleneck from deer browsing/shade, whereas six species (e.g., <em>F</em></span><em>agu<span>s grandifolia, Ostrya virginiana, Pinus strobus</span></em><span>) had highest relative density for saplings suggesting sapling to canopy recruitment limitations. Lastly, seedlings were relatively most abundant for </span><em>Acer rubrum </em><span>and </span><em>Prunus </em><span>spp., indicating disproportionally high seedling establishment, if not sapling or canopy recruitment, and for F. Americana, consistent with recent pest-related canopy mortality. Our results</span> suggest sustained low diversity and shifting composition are being driven by limited local seed availability, deep shading, limited seedling establishment substrate, and abundant deer. Management aimed at overcoming these specific limitations may be necessary to promote future NHF resilience.</span></p>
ITS phylogeny and tree file of Heterodontonyx species
<p><span><span>Here we used the DNA matrix of <em>Heterodontonyx</em> species to estimate their phylogenetic relationships and molecular distances. We used molecular data to inform the taxonomic revision of this Australian genus of spider wasps.</span></span></p>
Effects of tree species diversity and conspecific seedling density on insect herbivory and pathogen infection on big-leaf mahogany seedlings
<p>The Janzen-Connell Hypothesis (JCH) predicts that attack by specialist enemies on seedlings increases with conspecific seedling density, but studies have rarely experimentally tested for the contingency of such effects on tree community context (e.g., diversity, composition) and measured responses by different enemies (e.g. herbivores, pathogens). We conducted a field study in a large-scale system evaluating tree species diversity and conspecific density effects on leaf damage on mahogany (<em>Swietenia macrophylla</em>) seedlings. We established quadrats of eight levels of seedling density across mahogany tree monocultures and species polycultures including mahogany, and recorded percent leaf damage by insects and percent leaf necrosis by a pathogenic fungus on mahogany seedlings. We found contrasting effects of tree species diversity on insects and pathogens. Whereas diversity did not affect leaf damage by insects, it had a significant negative effect on leaf necrosis by pathogens. On average, percent leaf necrosis on mahogany seedlings in polyculture was half of that observed in monoculture. We discuss the potential influences of changes in mahogany tree density vs. frequency (relative to other tree species) driving this diversity effect. Unexpectedly, we found no effect of seedling conspecific density on either leaf insect or pathogen damage (i.e., density-independent attack). Likewise, we found no significant tree diversity by seedling density interaction, indicating that attackers were consistently unresponsive to variation in seedling density across two levels of tree diversity. Overall, this study provides a unique test of the JCH by experimentally evaluating seedling density and tree diversity effects on contrasting plant enemies, shedding light on enemy controls over plant recruitment.</p>
Figure 1 in Revisiting the ideas of trees as templates and the competition paradigm in pairwise analyses of ground-dwelling ant species occurrences in a tropical forest
Figure 1 Location of REGUA in the State of Rio de Janeiro, Brazil.
Coordinated drought responses determine the time to hydraulic failure in five temperate tree species differing in their degree of isohydry
<p>This file contains variables of interest at tree level measured, calculated and presented in the study "Coordinated drought responses determine the time to hydraulic failure in five temperate tree species differing in their degree of isohydry". </p>
Dataset: Recruitment responses of shade-tolerant and heliophilous trees in human-degraded areas: the necessity of knowing the recruitment autecology of species for making reforestation decisions
<p>This repository contains the files associated with the following article:</p> <p>Johanna Croce, Ernesto I. Badano, Andrés Tálamo. Recruitment responses of shade-tolerant and heliophilous trees in human-degraded areas: the necessity of knowing the recruitment autecology of species for making reforestation decisions Submitted to <em>Land Degradation & Development</em>.</p> <p>The first Microsoft Excel file (Dataset 01 - Microclimate.xlsx) contains two sheets with the microclimatic data (average, maximum and minimum soil temperatures, and volumetric soil water content) measured in Cerro Chachapoyas and Cerro Fachacano. These measurements were performed on three plots of each trearment, including shrub-protected treatment with high shade, shrub-protected treatment with medium shade, sunny treatment with high herbaceous cover, sunny treatment with medium herbaceous cover and controls. The second Microsoft Excel file (Dataset 02 -Plant responses.xlsx Dataset 02 - Plant responses.xlsx) contains three sheets with the data used to estimate the seedling emergence rates, plant survival rates and net aboveground growth rates of the tree species, including <em>Anadenanthera colubrina</em> and <em>Ceiba chodatii</em> in Cerro Chachapoyas, and <em>Jacaranda mimosifolia</em> in Cerro Fachacano.</p>
Seedling performance in a dioecious tree species is similar near female and male conspecific adults despite differences in colonization by arbuscular mycorrhizal fungi
<p>Plant–soil feedbacks (PSFs) are a key driver of species diversity and composition in plant communities worldwide; however, the factors that may cause feedbacks to vary within species are rarely examined. In dioecious species, the strength of feedbacks may differ near female plants that produce seed versus near male plants (which do not) because repeated inputs of seeds and high seedling densities near females may cause accumulation of host‐specific soil microbes that influence seedling performance. To test whether conspecific seedling performance is reduced near seed‐producing female trees relative to male or heterospecific trees, we conducted shadehouse and field experiments with a dioecious tropical tree species, Virola surinamensis (<em>Myristicaceae</em>), on Barro Colorado Island, Panama. The shadehouse experiment isolated the effect of soil microbial communities on seedling growth and allowed us to quantify colonization by mutualistic arbuscular mycorrhizal (AM) fungi, while the field experiment allowed us to assess seedling survival and growth in the presence of nearby conspecific adults and seedlings. In both experiments, seedling performance was similar between seedlings grown in the soil microbial communities and field environments underneath female conspecific, male conspecific, and heterospecific trees. However, contrary to expectation, seedling colonization by AM fungi was higher in male conspecific soil microbial communities than in female or heterospecific soil microbial communities at the end of the shadehouse experiment. Together, our experiments show that while differences among female and male plants in dioecious species may influence the association of conspecific seedlings with AM fungi in their soils, this variation does not necessarily translate directly to differences in seedling performance, at least over the time frame of our experiments. Studies of additional dioecious species are needed to help determine differences in soil microbial communities beneath male and female plants and to assess the role of seed input versus adult root systems in driving PSFs.</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)
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.