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298 results for “plant richness”
Data and code from: The overlooked link between different resource partitioning strategies and plant species richness in tropical alpine ecosystems
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Spatial, environmental, and functional distances among temporal ponds attenuate synchronization, stabilizing plant richness and biomass dynamics
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Data from: Plant diversity loss has limited effects on belowground biomass and traits but alters community short-term root production in a species-rich grassland
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Data from: Genetic diversity in widespread species is not congruent with species richness in alpine plant communities
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Data and code from: Functional rarity of plants in German hay meadows - patterns on the species level and mismatches with community species richness
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Plant diverity and richness metrics across inter-annual precipitation variability treatments at a grassland site in the Jornada Basin, 2009-2014
This ongoing dataset contains metrics of plant diversity, evenness, and richness from a study at the Jornada Experimental Range (JER) in southern New Mexico. The study was designed to assess the effect of interannual variability in precipitation on average aboveground net primary productivity (ANPP) in Chihuahuan Desert grasslands. The study began in 2009, has five precipitation treatments (see Methods) and contains 50 plots (10 per treatment). This data package contains 6-year (2009 to 2014) means of metrics per plot. Annual and more recent data are available and will be released pending an upcoming publication.
Data from: Shading enhances plant species richness and diversity on an extensive green roof
<p>Green roofs can promote biodiversity in urban areas. The extent to which green roofs stimulate plant diversity can depend on roof characteristics such as roof age, substrate depth and shading. We exploratively studied the vegetation on a Dutch green roof in 50 permanent plots (1 m<sup>2</sup>) over eight years (2012–2019) following roof construction. Plots were situated either on low substrate depth (6 cm light-weight extensive substrate) or high substrate depth (6 cm light-weight extensive substrate topped with 14 cm native soil) and differed in the amount of shading received from a higher building floor. Increased substrate depth and shading additively increased plant species richness and plant diversity, with high shaded plots supporting on average 6.4 more plant species than low unshaded plots. Shading likely acts via reducing drought stress, whereas increasing substrate depth with native soil may also enhance plant diversity via addition of nutrients and native seeds. The vegetation composition on the roof was dynamic and changed over the years. Sedum acre was initially dominant but disappeared within the first years, whereas Sedum kamtschaticum increased and became dominant in the last years. Trifolium arvense was the most abundant forb species and was especially dominant three years after roof construction. We conclude that increased substrate depth and shading can promote plant species richness and diversity and recommend that both aspects are considered when green roofs are designed. Shading can be achieved by a stepped building architecture and by placing structures on the roof itself, such as solar panels on standards.</p>
Data from: Multiple facets of diversity effects on plant productivity: species richness, functional diversity, species identity and intraspecific competition
<p>1. Deciphering the mechanisms that drive variation in biomass production across plant communities of contrasting species composition and diversity is a main challenge of biodiversity-ecosystem functioning research. Niche complementarity and selection effect have been widely investigated to address biodiversity-productivity relationships. However, the overlooking of the specific role played by key species have limited so far our capacity to comprehensively assess the relative importance of other potential drivers of biodiversity effects.</p> <p>2. Here, we conducted a grassland diversity-productivity experiment to test how four potential facets of biodiversity effects, namely species richness, functional diversity, species identity and the relaxation of intraspecific competition, account for variations in above and root biomass production.</p> <p>3. We grew six plant species in monoculture, as well as in every combinations of two, three and six species. Plant density was kept constant across the richness gradient but we additionally grew each species in half-density monoculture to estimate the strength of intraspecific competition for each studied species. We characterized eight functional traits, including root traits, related to nutrient and light acquisition and computed both the functional dissimilarity and the community weighted mean (CWM) of each trait. We further partitioned aboveground biodiversity effect into complementarity and selection effects.</p> <p>4. We observed strong positive biodiversity effects on both aboveground and root biomass as well as strong positive complementarity effect. These arose largely from the presence of a particular species (<i>Plantago lanceolata</i>) and from CWM trait values more than from a higher functional dissimilarity in plant mixtures. <i>P. lanceolata</i> displayed the highest intraspecific competition, which was strongly relaxed in species mixtures. By contrast, the presence of <i>Sanguisorba minor</i> negatively affected the productivity of plant mixtures, this species suffering more from interspecific than intraspecific competition.</p> <p>5. This study provides strong evidences that the search for key species is critical to understand the role of species diversity on ecosystem functioning and demonstrates the major role that the balance between intraspecific and interspecific competition plays in biodiversity-ecosystem functioning relationships. Developing more integrative approaches in community and ecosystem ecology can offer opportunities to better understand the role that species diversity plays on ecosystem functioning.</p>
Raster and original working data for the paper Holocene matters: landscape history accounts for current species richness of vascular plants in forests and grasslands of eastern Central Europe
<p>Aim: Current species-richness patterns are sometimes interpreted as a legacy of landscape history, but historical processes shaping the distribution of species during the Holocene are frequently omitted in biodiversity models. Here, we test their importance in modelling current species richness of vascular plants in forest and grassland vegetation.<br> Location: Western Carpathians and adjacent regions.<br> Taxon: Vascular plants.<br> Methods: Numbers of all species and of habitat specialists were extracted from plot records of forest and grassland vegetation. For each plot, environmental and historical data were derived from thematic maps. Historical data related to the persistence of (i) temperate taxa during the Late Glacial and Early Holocene, (ii) open-landscape taxa during the Middle Holocene, and (iii) taiga species during the Late Holocene were based on 112 fossil pollen profiles. Boosted regression trees were used to model spatial patterns in species richness.<br> Results: Historical variables always appeared among the best predictors of current species richness. In light forests, species richness highly mirrored both the Late Glacial (12.5% contribution) and Middle-Holocene (8.6%) landscape history. The latter factor became an important predictor also for species richness of steppe grasslands (8.3%) along with temperature seasonality (11.9%). Species richness of dark coniferous forests was best predicted by the Late-Holocene occurrence of taiga forests (14.8%), which had an even stronger effect on the richness of habitat specialists (20.5%). <br> Main conclusions: Landscape changes since the Last Glacial Maximum are important predictors of current plant species richness. The historical effects were found to be habitat-specific and, because they may interact with recent environmental conditions and anthropogenic pressures, they often show a non-linear relationship with species richness. We provide one possible direction of incorporating past landscape changes into the models of species richness.</p>
Data from: Species abundance fluctuations over 31 years are associated with plant-soil feedback in a species-rich mountain meadow
<p>1. Increasing evidence suggest that plant-soil interactions play an essential role in plant community assembly processes. Empirical investigations show that plant species abundance in the field is often related to plant-soil biota interactions, however, the direction of these relations have yielded inconsistent results.</p> <p>2. We combined unique 31-year long field data on species abundances from a species-rich mountain meadow with single time point plant-soil feedback greenhouse experiments of 24 co-occurring plant species. We tested whether these relations were dynamic in time, whether coupled increases and decreases in abundance between years were related to plant-soil feedback and whether these changes were underlain by years in which manuring was applied.</p> <p>3. The prevailingly negative relationship between plant-soil feedback and plant relative abundance in the field was significantly time-dependent, which may reconcile the contrasting results in literature. Furthermore, significant coupled oscillations appeared between species relative abundance changes and plant-soil feedback, which were likely moderated by years in which manuring was applied. Our results are consistent with the notion that the more abundant species are stabilised by negative plant-soil feedback, and the less abundant species co-vary with the fluctuations of these more competitive species.</p> <p>4. Synthesis: Our results project plant-soil feedback as an important regulatory mechanism in plant communities, operating in conjunction with a species' competitive ability and soil nutrient availability. We suggest that negative feedback is particularly prominent in more abundant plant species that profit from more readily available soil nutrients than less abundant species with positive feedback. Negative plant-soil feedback may thus prevent more abundant plant species from outcompeting less abundant plant species, facilitating stable species co-existence.</p>
Figure 5 in Gall-inducing arthropods in a Neotropical savanna area in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil): effects of plant species richness and super-host abundance
Figure 5. Gall morphotypes in host plants in an area of Neotropical savanna in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil). (A-B) Vochysiaceae = Qualea grandiflora, (C-D) Vochysiaceae = Qualea parviflora. of gall morphotypes per host plant species was 1.37. species was significantly influenced both by plant spe- Gall-inducing arthropods belonged to Acari, Diptera, cies richness (p = 0.011) and abundance of super-host Hemiptera and Lepidoptera. The most important gall-in- plants (p = 0.020) (Table 2). We found that galling speducing arthropods were Cecidomyiidae (Diptera) having cies per plant species was negatively affected by plant induced 34 (85.0%) gall morphotypes. In the sequence species richness (Fig. 6) and positively affected by abunwere Eriophyidae (Acari) inducing three (7.5%) mor- dance of super-host plants (Fig. 7). photypes, Psylloidea (Hemiptera) inducing two (5.0%) morphotypes, and Lepidoptera inducing a single (2.5%) morphotype. DISCUSSION The plant families that showed the greatest richness of arthropod galls were Fabaceae, with 16 (40.0%) mor- The number of galling species observed in the area photypes, Vochysiaceae with four (10.0%) and Myrtaceae of EPA of Rio Pandeiros (40 morphotypes) is intermediary (7.5%) with three morphotypes (Table 1). The plant spe- compared to other studies performed in Neotropical sacies Copaifera oblongifolia and Andira humilis Mart. ex vannas (Table 3). Forexample, Urso-Guimarãesetal. (2003) Benth. (Fabaceae) were the most important host spe- recorded only 22 gall morphotypes in cerrado fragments, cies with five and three morphotypes, respectively. All rupestrian field and gallery forest in Delfinópolis, Minas other host plant species had two or one morphotypes Gerais State. In other study, Maia & Fernandes (2004) re- (Table 1). Most of the arthropod galls occurred on leaves corded 137 morphotypes of insect galls in an area of rup- (90.0%), and was lenticular (45.0%), green (52.5%) and estrian fields and cerrado in the Serra de São José, Minas glabrous (82.5%). Gerais. These numbers extremely variable in the diversi- Galling species richness was not affected by none of ty of galling species can be explained by several factors, explanatory variables (Table 2), despite the tendency of among which are different sampling efforts employed in a positive effect of abundance of super-hosts on the gall the studies, as well as variations in the structural characrichness (p = 0.057). Already the galling species per plant teristics and diversity of the studied vegetation. The stan-
Figure 4 in Gall-inducing arthropods in a Neotropical savanna area in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil): effects of plant species richness and super-host abundance
Figure 4. Gall morphotypes in host plants in an area of Neotropical savanna in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil). (A) Fabaceae = Tachigali alba, (B) Malpighiaceae = Malpighiaceae sp., (C) Malvaceae = Eriotheca gracilipes, (D) Myrtaceae = Eugenia dysenterica, (E) Myrtaceae = Eugenia sp., (F) Myrtaceae = Psidium sp., (G) Ochnaceae = Ouratea hexasperma, (H) Ochnaceae = Ouratea spectabilis.
Figure 3 in Gall-inducing arthropods in a Neotropical savanna area in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil): effects of plant species richness and super-host abundance
Figure 3. Gall morphotypes in host plants in an area of Neotropical savanna in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil). (A-D) Fabaceae = Copaifera oblongifolia, (E) Fabaceae = Hymenaea stigonocarpa, (F-G) Fabaceae = Machaerium opacum, (H) Fabaceae = Sclerolobium denudatum.
Figure 2 in Gall-inducing arthropods in a Neotropical savanna area in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil): effects of plant species richness and super-host abundance
Figure 2. Gall morphotypes in host plants in an area of Neotropical savanna in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil). (A) Dilleniaceae = Davilla elliptica, (B) Ebenaceae = Diospyros hispida, (C) Erythroxylaceae = Erythroxylum suberosum, (D-F) Fabaceae = Andira humilis, (G) Fabaceae = Copaifera luetzelburgii, (H) Fabaceae = Copaifera oblongifolia.
Figure 1 in Gall-inducing arthropods in a Neotropical savanna area in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil): effects of plant species richness and super-host abundance
Figure 1. Gall morphotypes in host plants in an area of Neotropical savanna in the EPA of Rio Pandeiros (Bonito de Minas, MG, Brazil). (A) Anacardiaceae =Anacardium humile, (B) Bignoniaceae = Handroanthus ochraceus, (C) Calophyllaceae = Kielmeyera speciosa, (D) Caryocaraceae = Caryocar brasiliense, (E) Combretaceae = Terminalia fagifolia, (F-G) Connaraceae = Connarus suberosus, (H) Dilleniaceae = Davilla elliptica.
Figure 2. Bird species accumulation curve and estimated richness curve obtained from the Chao 1 in Avifauna of the region of the Volta Grande Hydroelectric Power Plant in Southeast Brazil
Figure 2. Bird species accumulation curve and estimated richness curve obtained from the Chao 1 index for the study area located throughout the reservoir of the Volta Grande Hydroelectric Power Plant in Southeast Brazil. Vertical bars represent the standard deviation of the estimate.
Data from: Phylogenetic conservatism and biogeographic affinity influence woody plant species richness-climate relationships in eastern Eurasia
<p>Mechanisms underlying species richness patterns remain a central yet controversial issue in biology. Climate has been regarded as a major determinant of species richness. However, the relative influences of different evolutionary processes, (i.e. niche conservatism, diversification rate, and time for speciation) on species richness-climate relationships remain to be tested. Here, using newly compiled distribution maps for 11,422 woody plant species in eastern Eurasia, we estimated species richness patterns for all species and for families with tropical and temperate affinities separately, and explored the phylogenetic signals in species richness patterns of different families and their relationships with contemporary climate and climate change since the Last Glacial Maximum (LGM). We further compared the effects of niche conservatism (represented by contemporary-ancestral climate niches differences), diversification rate and time for speciation (represented by family age) on variation in the slopes of species richness-climate relationships. We found that winter coldness was the best predictor for species richness patterns of most tropical families while Quaternary climate change was the best predictor for those of most temperate families. Species richness patterns of closely-related families were more similar than those of distantly-related families within eudicots, and significant phylogenetic signals characterized the slopes of species richness-climate relationships across all angiosperm families. Contemporary-ancestral climate niche differences dominated variation in the relationships between family-level species richness and most climate variables. Our results indicate significant phylogenetic conservatism in family-level species richness patterns and their relationships with contemporary climate within eudicots. These findings shed light on the mechanisms underlying large-scale species richness patterns and suggest that ancestral climatic niche may influence the evolution of species richness-climate relationships in plants through niche conservatism.</p>
Data from: Increases in understory plant cover and richness persist following restoration treatments in Pinus ponderosa forests
<p>A combination of forest thinning followed by prescribed burning is widely applied in the western US to increase ecosystem resistance and resilience to disturbances. Understory plant community responses may be driven both by management treatments and climatic factors. Thus, responses to treatments during a 20-year megadrought have implications for the role of management in fostering adaptive capacity to climate change.</p> <p>We used a network of five sites (600 plots) spanning an environmental gradient in ponderosa pine (<em>Pinus ponderosa</em>) forests of the American Southwest, an ecosystem that is broadly distributed and actively managed throughout the western US. We used repeated long-term monitoring data to quantify plant community responses to treatment 1-5, 6-10, and >10 years post-implementation. Specifically, we focused on the effects of treatment and abiotic conditions on native and nonnative plant cover and species richness, and on the proportion of native species with northern (cool-mesic) biogeographic affinities.</p> <p>Overall, thinning and prescribed burning nearly doubled native cover and increased native species richness by about 50% relative to untreated controls. These effects persisted for over a decade after treatment, even under the influence of significant and persistent drought. Cover and richness were also greater on intermediate to wet sites. Finally, native species with northern biogeographic affinities were reduced for up to five years after treatment relative to those with southern (warm-xeric) affinities, and in dry years, indicating that both management and interannual climate variability may foster shifts in plant communities that are more resilient to a warming climate.</p> <p>Synthesis and applications: In ponderosa pine forests of the American Southwest, tree thinning followed by prescribed burning will generally promote restoration goals of increasing resilience to climate change by enhancing the diversity and abundance of native understory plant species, even during a persistent 20-year megadrought.</p>
Soil toxicity and species dominance rather than nutrient availability drive plant species richness in swamp forests of Central Europe
<p><strong>Aim: </strong>A resource-based conceptual model of plant diversity (RBCM) assumes direct relationships between resource supply and the diversity of a local plant assembly. However, the RBCM largely ignores variation imposed by soil toxicity due to climatic effects. Both soil-limiting resources and soil toxicity vary along climatic gradients but their net and interactive effects on plant species diversity remain unknown. We asked how climatic gradients shape resource availability, soil toxicity and dominance of herb-layer graminoids, and how these predictors control local species diversity of herbs and bryophytes.</p> <p><strong>Location: </strong>Swamp forests, Central Europe</p> <p><strong>Taxon: </strong>Vascular plants, bryophytes</p> <p><strong>Methods: </strong>Alpha taxonomic diversity of vascular plants and bryophytes was counted for 101 vegetation plots sampled in temperate swamp forests distributed along an 800-km geographical gradient across the Continental, Alpine and Pannonian biogeographical regions. Path analysis (structural equation modelling) was used to quantify the direct and indirect effects of climatic variables (potential evapotranspiration; PET), limiting resources (soil N/P, Ca, C/N, proxies for light and water availability), and soil toxicity (Mn) on graminoid dominance and community diversity.</p> <p><strong>Results: </strong>PET negatively influenced species richness of both groups analysed either directly or indirectly through its positive effect on the cover of graminoid species. Alpha diversity of herbs was additionally reduced by soil toxicity (Mn). Limiting resources correlated either with species dominance (canopy shading, soil Ca) or with PET (soil N/P ratio), but they did not control species richness pattern.</p> <p><strong>Main Conclusions: </strong>Climate, soil toxicity and species dominance determined alpha diversity instead of the expected importance of soil limiting resources. These results are key to advancing the theoretical framework of the RBCM. Increased soil toxicity (Mn) in well-watered regions favours the dominance of plant competitors at the expense of less tolerant species. This implies a potential threat to wetland diversity under ongoing climate change.</p>
Data from: neglected puzzle pieces of urban green infrastructure: richness, cover, and composition of insect-pollinated plants in traffic-related green spaces
<p>Insect-pollinated vascular plants in spontaneous vegetation provide essential ecosystem services and benefit wildlife. However, floral communities associated with traffic-related green spaces are rarely considered valuable elements of urban green infrastructure (UGI). The dataset contains information on species-based floral communities of vascular insect-pollinated plants in traffic-related green spaces in three highly populated Finnish cities. Those are Helsinki (665 558 inhabitants), Tampere (244 029 inhabitants), and Turku (175 645 inhabitants). Data were collected during the mean flowering phenophase of vascular plants in July-August 2022 from two types of locations: (i) urban (city centers) and (ii) suburban (city outskirts), and from three types of traffic-related green spaces: (i) traffic islands, (ii) parking lots, (iii) road verges. The dataset contains information for the 93 vascular insect-pollinated plant species flowering during the survey. Sampling campaign was conducted in 90 sampling sites, and the dataset contains information on the location coordinates. In addition, the dataset possesses information on the amount of garbage pieces (cigarette filters, plastic boxes, or scraps) revealed for each sampling point in traffic-related green spaces.</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.