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1,102 results for “plant diversity”
Figure 1 from: Liu H-M, Shen J-Y, Liang Z-L, Peng F, Wang W-Z, Yang Z-W, Wang S, Parris B, Schneider H (2019) Two out of one: revising the diversity of the epiphytic fern genus Scleroglossum (Polypodiaceae, Grammitidoideae) in southern China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 115-133. https://doi.org/10.3897/phytokeys.130.33979
Figure 1 The grammitid genus Scleroglossum in China. A–EScleroglossum pusillum in Yunnan (YunAcc) and F–HScleroglossum sulcatum in Hainan (HaiAcc). A habitat of S. pusillum occurrences in Yunnan B germinated green spore recovered from opened mature sporangia of S. pusillum. The remains of the spore wall are visible at the lower part of the larger of the two cells that both contain mature chloroplasts. The smaller cell is the first daughter cell formed by the first cell division C habit of S. pusillumD close up of the dorsal surface of the simple leaves showing the location of the submarginal sori and the occurrences of brown branched hairs of S. pusillumE close up of the sorus structure showing the placement at the submargin of the leaves in S. pusillum. F habit of S. sulcatumG close up of the dorsal surface of the simple leaves showing the location of the not submarginal sori and the occurrences of brown branched hairs of S. sulcatumH close up of the sorus structure showing the placement of the sori in dorsal grooves and a distinct lamina margin in S. sulcatum. Scale bars: 0.02 mm (B); 1 mm (E, H).
Figure 8 from: Yang B, Ding H-B, Fu K-C, Yuan Y-K, Yang H-Y, Li J-W, Zhang L-X, Tan Y-H (2019) Four new species of Gesneriaceae from Yunnan, Southwest China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 183-203. https://doi.org/10.3897/phytokeys.130.34001
Figure 8 Henckelia xinpingensis Y.H.Tan & Bin Yang, sp. nov. A Habit B calyx lobes C corolla (Dissected) D pedicel with pistil. Drawn by Zheng-meng Yang.
Figure 1 from: Wu Z-K, Cai J, Cai L, Liu D-T (2019) Ceropegia jinshaensis (Apocynaceae), a new species from northwestern Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 41-48. https://doi.org/10.3897/phytokeys.130.34311
Figure 1 Ceropegia jinshaensis sp. nov. A plant B flower with young follicles C leaf D corolla tube dissected showing corolla interior and corona position E side view of corona F front view of corona. Drawn by Rongmei Zhang from holotype.
Figure 2 from: Zhu X, Liao S, Yi S (2019) Disporum nanchuanense (Colchicaceae), a new species from Chongqing, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 49-57. https://doi.org/10.3897/phytokeys.130.34005
Figure 2 Disporum nanchuanense X.X.Zhu & S.R.Yi. A Plant B–C Leaves D–E Inflorescences F Roots. Photographed by Xinxin Zhu
Figure 3 from: Cai L, Liu D-T, Zhang P, Dao Z-L (2019) Two new species of Henckelia (Gesneriaceae) from Southeastern Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 151-160. https://doi.org/10.3897/phytokeys.130.33988
Figure 3 Henckelia multinervia Lei Cai & Z.L.Dao, sp. nov. A Habitat B plants with flowers C rhizome, petiole and abaxial leaf surface D front view of flowers and adaxial leaf surface E, F side view of flowers G opened corolla H pistil, disc and calyx I opened corolla and pistil with calyx. All photographs by Lei Cai.
Figure 1 from: Wu X-F, Ye D-P, Pan B, Lin X-Q, Jiang H, Liu Q (2019) Validation of Gastrochilus prionophyllus (Vandeae, Orchidaceae), a new species from Yunnan Province, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 161-169. https://doi.org/10.3897/phytokeys.130.34555
Figure 1 Gastrochilus prionophyllus. A Adaxial view and abaxial view of plant B inflorescence C front view of flower D lateral sepal E petal F dorsal sepal G front view of column H margin of leaf I lateral view of labellum and column J pollinarium K abaxial and adaxial anther cap. All from the type collection (Qiang Liu, 359) and drawn by Bo Pan.
Figure 5 from: Zhu X, Li X, Liao S, Li G, Ma J (2019) The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: two new species from Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 93-106. https://doi.org/10.3897/phytokeys.130.33933
Figure 5 Aristolochia yangii X.X.Zhu & J.S.Ma, sp. nov. A habit B leaves C inflorescence D flower bud E flower (lateral view) F flower (front view) G anthers and gynostemium H fruit I seeds. Photographed by Xinxin Zhu.
Figure 4 from: Zhu X, Li X, Liao S, Li G, Ma J (2019) The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: two new species from Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 93-106. https://doi.org/10.3897/phytokeys.130.33933
Figure 4 Aristolochia yangii X.X.Zhu & J.S.Ma, sp. nov. A habit B inflorescence C opened flower (showing the inside structure) D anthers and gynostemium E fruit. Illustration by Manhua Lin (A–D); Illustration by Shizhen Qiao (E).
Figure 1 from: Zhu X, Li X, Liao S, Li G, Ma J (2019) The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: two new species from Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 93-106. https://doi.org/10.3897/phytokeys.130.33933
Figure 1 Aristolochia pseudoutriformis X.X.Zhu & J.S.Ma, sp. nov. A habit B flower (lateral view) C flower (front view) D opened flower (showing the inside structure) E anthers and gynostemium F fruit. Illustration by Shizhen Qiao.
Figure 2 from: Zhu X, Li X, Liao S, Li G, Ma J (2019) The taxonomic revision of Asian Aristolochia (Aristolochiaceae) V: two new species from Yunnan, China. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China's biodiversity hotspots. PhytoKeys 130: 93-106. https://doi.org/10.3897/phytokeys.130.33933
Figure 2 Aristolochia pseudoutriformis X.X.Zhu & J.S.Ma, sp. nov. A habit B leaves C flower bud D flower (lateral view) E flower (front view) F flowers G anthers and gynostemium H fruit I seeds. Photographed by Xinxin Zhu.
Figure 6 in Diversity and spatio-temporal variation of Anopheles (Diptera: Culicidae) before and after the construction of the Jirau hydroelectric plant, state of Rondônia, Brazil
Figure 6 Cases of malaria and density of Anopheles darlingi in the area covered by the Jirau hydroelectric plant, in Rondônia, Brazil in the pre and post-construction phases. Source: SVS / SIVEP - Malaria.
Figure 4 in Diversity and spatio-temporal variation of Anopheles (Diptera: Culicidae) before and after the construction of the Jirau hydroelectric plant, state of Rondônia, Brazil
Figure 4 Hematophagic activity patterns of anophelines in the pre (a) and post-construction (b) phases of the Jirau hydroelectric plant, in Rondônia, Brazil.
FIGURE 1 in The endemic and range restricted vascular plants of Croatia: diversity, distribution patterns and their conservation status
FIGURE 1 Study area with main localities indicated.
FIGURE 2 in A new species of Trixis (Nassauvieae, Asteraceae) from the Center of Plant Diversity of Cabo Frio, Brazil
FIGURE 2. Distribution map of Trixis salina in Rio de Janeiro state, Brazil.
Linked collectors and determiners for: University of California, Davis, Center for Plant Diversity - Lichen Herbarium.
Natural history specimen data linked to collectors and determiners held within, "University of California, Davis, Center for Plant Diversity - Lichen Herbarium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/cf6a5ca0-c9ca-4d99-85df-598bc118226d">https://bionomia.net/dataset/cf6a5ca0-c9ca-4d99-85df-598bc118226d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/cf6a5ca0-c9ca-4d99-85df-598bc118226d">https://gbif.org/dataset/cf6a5ca0-c9ca-4d99-85df-598bc118226d</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: University of California, Davis, Center for Plant Diversity - Bryophyte Herbarium.
Natural history specimen data linked to collectors and determiners held within, "University of California, Davis, Center for Plant Diversity - Bryophyte Herbarium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/08ed4a7c-2948-48d1-98f1-8e395d8a5626">https://bionomia.net/dataset/08ed4a7c-2948-48d1-98f1-8e395d8a5626</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/08ed4a7c-2948-48d1-98f1-8e395d8a5626">https://gbif.org/dataset/08ed4a7c-2948-48d1-98f1-8e395d8a5626</a>. Formatted as a Frictionless Data package.
Data from: Fuels and fires influence vegetation via above- and below-ground pathways in a high-diversity plant community
1. Fire strongly influences plant populations and communities around the world, making it an important agent of plant evolution. Fire influences vegetation through multiple pathways, both above- and belowground. Few studies have yet attempted to tie these pathways together in a mechanistic way through soil heating even though the importance of soil heating for plants in fire-prone ecosystems is increasingly recognized. 2. Here we combine an experimental approach with structural equation modelling (SEM) to simultaneously examine multiple pathways through which fire might influence herbaceous vegetation. In a high-diversity longleaf pine groundcover community in Louisiana, USA, we manipulated fine-fuel biomass and monitored the resulting fires with high-resolution thermocouples placed in vertical profile above- and belowground. 3. We predicted that vegetation response to burning would be inversely related to fuel load owing to relationships among fuels, fire temperature, duration and soil heating. 4. We found that fuel manipulations altered fire properties and vegetation responses, of which soil heating proved to be a highly accurate predictor. Fire duration acting through soil heating was important for vegetation response in our SEMs, whereas fire temperature was not. 5. Our results indicate that in this herbaceous plant community, fire duration is a good predictor of soil heating and therefore of vegetation response to fire. Soil heating may be the key determinant of vegetation response to fire in ecosystems wherein plants persist by resprouting or reseeding from soil-stored propagules. 6. Synthesis. Our SEMs demonstrate how the complex pathways through which fires influence plant community structure and dynamics can be examined simultaneously. Comparative studies of these pathways across different communities will provide important insights into the ecology, evolution and conservation of fire-prone ecosystems.
Data from: Complementarity in both plant and mycorrhizal fungal communities are not necessarily increased by diversity in the other
1. Higher species diversity can improve community performance within a species guild when different species complement each other in their use of the available niche, such as through resource partitioning. However, species in one guild of organisms may act as resources for another such that the diversity in one guild alters the realized niche for species in another. Yet, it remains largely untested as to whether diversity in one guild of organisms influences species complementarity in another. 2. The productivity and diversity in plant and arbuscular mycorrhizal (AM) fungal communities can be positively associated with each other through their typically mutualistic exchange of resources. Here we utilized these two interacting species guilds to determine whether greater diversity in one influences species complementarity in the other. This was done by creating monocultures and a mixture of a grass, forb, and legume in a full factorial design with monocultures and a mixture of four AM fungi. 3. The presence of AM fungi reduced differences in the performance among plant species and greater diversity of fungi generally improved plant productivity over the average of the fungal monocultures. However, plant species complementarity was not greatest with a higher diversity of fungi and was only positive with a particular fungal monoculture. 4. AM fungal abundance was not affected by plant diversity, but was greatly reduced in the grass monoculture compared to the other plant communities. Variation in fungal complementarity among plant communities was low overall and was little influenced by plant diversity. 5. Synthesis. Using a model plant-mycorrhizal system our results suggest that the composition rather than the diversity of species within one guild may be more influential in determining how species function within an associated species guild. However, our model system does not represent a broad gradient of diversity in either plant or fungal communities and only assesses the initial growth phase. Nonetheless our results highlight that changes in species compositions in one species guild can affect the functioning of species diversity in another.
Species co-occurrence shapes spatial variability in plant diversity–biomass relationships in natural rangelands under different grazing intensities
<p>Grazing can alter plant species interactions in natural rangelands, which in turn might influence the productivity of the ecosystem but we do not fully understand how spatial variability in plant diversity-biomass relationships are modulated by grazing intensity. Here, we hypothesized that plant species co-occurrence in rangelands is mainly driven by niche segregation due to grazing and heterogeneity in local resources, and that grazing therefore modulates diversity–biomass relationships.<b> </b>We tested our hypothesis across 35 rangeland sites in Iran, using a species co-occurrence index to assess plant spatial aggregation within each site. At each site, we measured aboveground biomass, plant diversity, topography, soil nutrients and three levels of grazing intensity. High spatial segregation of plant communities (low species co-occurrence) was found at heavily grazed sites, whereas greater spatial aggregation (high species co-occurrence) was found on low and moderate grazed sites, showing varied associational patterns of species with grazing intensity. Soil nutrients increased with grazing intensity and spatial segregation of plant communities was greater at sites with high soil nutrient concentrations, indicating that grazing intensity influences the spatial heterogeneity of plant communities via nutrients deposited in urine and faeces. Declining plant biomass with grazing intensity was related to a strong decline in graminoid species diversity, which suggests that the diversity-biomass relationship is influenced by selective grazing of palatable species. The relationships between species co-occurrence and biomass or plant diversity suggest non-random patterns in species co-occurrences with grazing intensity, which could be the result of competition driven by high livestock grazing intensity. We therefore suggest that rangeland stocking rates should be managed properly to maintain rangeland production while promoting plant diversity.</p>
Leaf functional traits and insular colonization: subtropical islands as a melting pot of trait diversity in a widespread plant lineage
<p><strong>Aim: </strong>One of the main goals of functional biogeography is to examine distribution patterns of trait diversity, and islands provide excellent study cases for this emerging field. We tested the hypothesis that multiple dispersals from a common mainland pool would promote functional similarity among island systems when environmental conditions are similar, but also novel phenotypic traits related to colonization history and exploitation of new habitats.</p> <p><strong>Location: </strong>Mediterranean Basin and Macaronesian islands</p> <p><strong>Methods:</strong> We used the well-known biogeographical history of a woody plant complex (Periploca laevigata s.l.) to examine trait variation and how it relates to climatic conditions of mainland and subtropical island settings. In a common garden experiment, we measured a suite of leaf physiological and anatomical traits tightly related to plant performance in 320 seedlings representing 21 populations of five sublineages: the oldest (2.6 my) island colonization (western Canary Islands) as a reference, three sublineages stemming from independent events of island colonization in the last 0.5 my from NW Africa (Cape Verde, Fuerteventura, Lanzarote), and their widespread Mediterranean mainland counterpart.</p> <p><strong>Results:</strong> We observed strong phenotypic divergence between island and mainland sublineages linked to contrasting climatic conditions. Mediterranean mainland populations displayed a very specialized leaf phenotype characteristic of arid plants (i.e. small leaves, amphistomaty, isobilateral mesophyll, high photosynthetic rates). In turn, low seasonality on islands was linked to the recurrent expression of a phenotype characterized by larger leaves and lower photosynthetic rates. Our analyses showed that the high investment in secondary compounds (i.e. tannins) on islands decouples photosynthesis from growth rates. Despite this pattern of parallel differentiation, each island sublineage displayed a distinctive phenotype, with some traits related to colonization time, which resulted in a mosaic of functional variation across island systems.</p> <p><strong>Main conclusions: </strong>Our data suggest that the studied subtropical islands promote expression of traits specific to certain sublineages and other common traits that are no untypeset proof Page 2 of 50 Journal of Biogeography longer adaptive in the original mainland pool due to Pleistocene climatic shifts. These findings ultimately extend the role of islands as biodiversity refugia and hotspots of plant functional diversity.</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.