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32 results for “Tropical plant diversity”
Data from: Plant diversity accurately predicts insect diversity in two tropical landscapes
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Data from: Seed polyphenols in a diverse tropical plant community
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Data from: Latitudinal and altitudinal patterns of plant community diversity on mountain summits across the tropical Andes
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Data from: β-diversity of herbaceous versus woody plant communities across a tropical rainfall gradient
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Data from: Projecting consequences of global warming for the functional diversity of fleshy-fruited plants and frugivorous birds along a tropical elevational gradient
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Using multiple seedlots in restoration planting enhances genetic diversity compared to natural regeneration in fragmented tropical forests
<p>Catastrophic degradation of forests is ongoing worldwide and leads to severe forest fragmentation. Restoration plantings are often necessary to restore fragmented forests, complementing the limited natural regeneration. High genetic diversity is critical for the long-term viability of restored forests. However, there is limited knowledge of whether planted populations capture a genetic variation comparable to natural populations. We measured the efficiency of two forest restoration strategies using the common tropical oak <em>Quercus bambusifolia</em>. The multi-seedlot planting was established over ten years by collecting seeds from several locations in fragmented secondary forests of Hong Kong, while the single seedlot planting was established in just one year with seeds from a single natural location. We analysed the genetic diversity and genetic structure from both plantings and compared them with natural populations. The multi-seedlot planting exhibited a higher rate of genetic recovery, greater genetic diversity (He = 0.69), and higher effective population size (Ne_p = 86.5) compared to natural populations (He = 0.66, Ne_p = 64.3, on average) and the single seedlot planting (He = 0.50, Ne_p = 30.8). The multi-seedlot planting erased the effect of seed shadows which was detected in natural populations while the single seedlot planting strengthened the effect. We conclude that capturing high levels of genetic diversity in the collection of propagules is a standard requirement to ensure the long-term viability of forest restoration. Propagule collection over multiple years is required when only a few parental trees are available to avoid founder effects.</p>
Data from: Does plant diversity increase top–down control of herbivorous insects in tropical forest?
Higher trophic level interactions are key mediators of ecosystem functioning in tropical forests. A rich body of theory has been developed to predict the effects of plant diversity on communities at higher trophic levels and the mechanisms underlying such effects. The 'enemies hypothesis' states that predators exert more effective top–down control of herbivorous insects with increasing plant diversity. Support for this hypothesis has been found in temperate forests and agroecosystems, but remains understudied in tropical forests. We compared incidence of attacks of different natural enemies using artificial caterpillars in a tropical forest landscape and investigated the role of plant community structure (i.e. species richness, composition and density), and the role of forest fragmentation (i.e. patch size, edge distance and canopy openness) on predation intensity. Plant community effects were tested with respect to three vegetation strata: trees, saplings and herbs. Observed predation was substantially due to ants. Predation rates increased with plant species richness for trees and herbs. Density of saplings, herb cover and herb species composition were important factors for predation. No significant patterns were found for fragmentation parameters, suggesting that forest fragmentation has not altered predation intensity. We conclude that in tropical forests, top–down control of herbivorous insects in the understory vegetation is affected by a combination of plant diversity, plant species composition and structural features of the plant community.
Data from: Taxonomic and phylogenetic diversity of vascular plants at Ma'anling volcano urban park in tropical Haikou, China: Reponses to soil properties
Anthropogenic processes and socio-economic factors play important roles in shaping plant diversity in urban parks. To investigate how plant diversity of Ma' anling urban volcano park in Hainan Province, China respond to these factors, we carried out a field investigation on the taxonomic and phylogenetic diversity of vascular plants and soil properties in this area. We found 284 species of vascular plants belonging to 88 families and 241 genera, which included 194 native species, 23 invasive species, 31 naturalized species, 40 cultivars, and 4 rare / endangered plant species. Tree composition and richness significantly varied between different vegetation formations (plantation, secondary forest, and abandoned land). Plant species richness and community composition were significantly affected by elevation (El), soil water content (WC), total soil nitrogen (TN) and soil organic matter (SOM). There were significant diversity differences between plantations and abandoned lands, but not between the plantations and secondary forests. The flora in the study site was tropical in nature, characterized by pantropic distributions. Compared to adjacent areas, floristic composition in the study site was most similar to that of Guangdong, followed by that of Vietnam. Our study revealed the diversity patterns of volcanic plants and provided the basis for future planning of plant conservation, such as preserving plant species, maintaining plant habitats, and coordinating plant management in this region.
Data from: Taxonomic and phylogenetic diversity of vascular plants at Ma’anling volcano urban park in tropical Haikou, China: Reponses to soil properties
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Data from: Does plant diversity increase top–down control of herbivorous insects in tropical forest?
Open the record for dataset details and reuse information.
Using multiple seedlots in restoration planting enhances genetic diversity compared to natural regeneration in fragmented tropical forests
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The spider diversity and plant hopper control potential in the long-term organic paddy fields in sub-tropical area, China
<p>Data file (1 data set) accompanying paper He et al., (2019). The spider diversity and plant hopper control potential in the long-term organic paddy fields in the sub-tropical area, China</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.