Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
571
datasets available to search
ShareScore release 0.9.0
Dataset results
571 results for “biological diversity”
Figure 5 in Reproductive Biology of the Mice and Rats (Family Muridae) in New Guinea-Diversity and Evolution
Figure 5. Light micrographs of spermatozoa from (a) Leptomys elegans, (b) Melomys rufescens, (c) Pogonomys championi, (d) Pogonomys loriae, (e) Abeomelomys sevia, (f) Anisomys imitator, and (g) Rattus steini. Scale bars a = 4 µm, b–g = 5 µm.
Local plant diversity and soybean biological control 2011 Harvest Measures:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Local plant diversity and soybean biological control 2012 Aphid Surveys:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Data from: Miniaturization, genome size, and biological size in a diverse clade of salamanders
Genome size (C-value) can affect organismal traits across levels of biological organization, from tissue complexity to metabolism. Neotropical salamanders show wide variation in genome and body sizes, including several clades with miniature species. Because miniaturization imposes strong constraints on morphology and development, and genome size is strongly correlated with cell size, we hypothesize that body size has played an important role in the evolution of genome size in bolitoglossine salamanders. If this hypothesis is correct, then genome size and body size should be correlated in this group. Using Feulgen Image Analysis Densitometry (FIAD), we estimated genome sizes for 60 species of neotropical salamanders. We also estimated the "biological size" of species by comparing genome size and physical body sizes in a phylogenetic context. We found a significant correlation between C-value and physical body size using optimal regression with an Ornstein-Uhlenbeck model, and report the smallest salamander genome found to date. Our index of biological size showed that some salamanders with large physical body size have smaller biological body size than some miniature species, and that several clades showed patterns of increased or decreased biological size compared to their physical size. Our results suggest a causal relationship between physical body size and genome size and show the importance of considering the impact of both on the biological size of organisms. Indeed, biological size may be a more appropriate measure than physical size when considering phenotypic consequences of genome size evolution in many groups.
Figure 4 in Reptile diversity in the Duas Bocas Biological Reserve, Espírito Santo, southeastern Brazil
Figure 4. Accumulation curves of reptile species based on the sampling days in the Duas Bocas Biological Reserve, Espírito Santo, Brazil. The colored shad- ed area corresponds to the error bars associated with each estimator.
Figure 1 in Reptile diversity in the Duas Bocas Biological Reserve, Espírito Santo, southeastern Brazil
Figure 1. Location of Duas Bocas Biological Reserve, Cariacica, Espírito Santo, southeastern Brazil. Tracks and stars represent sampling areas of this study, with tracks representing the location of the trails and the stars representing the location of the plots.
Figure 3 in Reptile diversity in the Duas Bocas Biological Reserve, Espírito Santo, southeastern Brazil
Figure 3. Examples of snake species occurring in Duas Bocas Biological Reserve, Espírito Santo, Brazil: (A) Trilepida salgueiroi, (B) Corallus hortulanus, (C) Epicrates cenchria, (D) Chironius fuscus, (E) Oxybelis aeneus, (F) Spilotes sulphureus, (G) Dipsas neuwiedi, (H) Erythrolamprus miliaris, (I) Pseudoboa nigra, (J) Xenodon neuwiedii, (K) Bothrops jararaca, (L) Bothrops jararacussu.
Figure 2 in Reptile diversity in the Duas Bocas Biological Reserve, Espírito Santo, southeastern Brazil
Figure 2.Examples of lizard species occurring in Duas Bocas Biological Reserve,Espírito Santo,Brazil:(A) Hemidactylus mabouia, (B)Gymnodactylus darwinii, (C)Psychosaura macrorhyncha, (D) Dactyloa punctata, (E) Polychrus marmoratus, (F) Tropidurus torquatus, (G) Ecpleopus gaudichaudii, (H) Leposoma scincoides, (I) Salvator merianae.
Data for: A diverse parasite pool can improve effectiveness of biological control constrained by genotype-by-genotype interactions
<p>The outcomes of biological control programs can be highly variable, with natural enemies often failing to establish or spread in pest populations. This variability has posed a major obstacle in use of the bacterial parasite <em>Pasteuria</em> <em>penetrans</em> for biological control of <em>Meloidogyne</em> species, economically devastating plant-parasitic nematodes for which there are limited management options. A leading hypothesis for this variability in control is that infection is successful only for specific combinations of bacterial and nematode genotypes. Under this hypothesis, failure of biological control results from the use of <em>P</em>. <em>penetrans</em> genotypes that cannot infect local <em>Meloidogyne</em> genotypes. We tested this hypothesis using isofemale lines of <em>M</em>. <em>arenaria</em> derived from a single field population and multiple sources of <em>P</em>. <em>penetrans</em> from the same and nearby fields. In strong support of the hypothesis, susceptibility to infection depended on the specific combination of host line and parasite source, with lines of <em>M</em>. <em>arenaria</em> varying substantially in which <em>P</em>. <em>penetrans</em> source could infect them. In light of this result, we tested whether using a diverse pool of <em>P</em>. <em>penetrans</em> could increase infection and thereby control. We found that increasing the diversity of the <em>P</em>. <em>penetrans</em> inoculum from one to eight sources more than doubled the fraction of <em>M</em>. <em>arenaria</em> individuals susceptible to infection and reduced variation in susceptibility across host lines. Together, our results highlight genotype-by-genotype specificity as an important cause of variation in biological control and call for the maintenance of genetic diversity in natural enemy populations.</p>
Figure 6 in Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem
Figure 6. Anchovy production during the sampling period.
Island area and remoteness shape plant and soil bacterial diversity through land use and biological invasion
<p>Biodiversity is declining dramatically due to human-driven land use change and biological invasion, but our knowledge of how such drivers influence plant and heterotroph diversity on island ecosystems remains limited. Historically island biogeography theory has focused solely on the direct effects of island size and remoteness on biodiversity, but these factors can also indirectly affect species gain and/or loss by impacting land use change and biological invasion. We built the structural equation model to explore the direct effects of island size and remoteness, and indirect effects of these factors via land use intensity and pinewood nematode invasion, on the diversity of plants and soil bacteria across 37 continental shelf islands in the largest land-bridge archipelago in eastern China.</p> <p>As expected we found that increasing island area directly promoted plant diversity. However, land use intensity increased with island area which also promoted plant diversity, and loss of pine forest by the pinewood nematode invasion increased with island remoteness which reduced plant diversity. Island remoteness only indirectly reduced plant diversity through increasing pine forest loss. Soil bacterial diversity was directly negatively impacted by island remoteness, and indirectly negatively impacted by island remoteness through increased soil electrical conductivity likely caused by greater salinity from sea spray. Furthermore, soil bacterial diversity was indirectly promoted by island area through increased plant diversity and decreased soil electrical conductivity, and indirectly reduced by pine forest loss through decreased plant diversity. Our findings highlight that island biogeography theory has relevance to understanding human impacts in the Anthropocene, and that there is a need to more explicitly recognize how island size and remoteness affect biodiversity not only directly, but also indirectly via their effects on human-induced drivers of biodiversity, such as land use change and biological invasion.</p>
Landscape composition shapes biological control by promoting off-season predator diversity
Open the record for dataset details and reuse information.
Island area and remoteness shape plant and soil bacterial diversity through land use and biological invasion
Open the record for dataset details and reuse information.
Data for: A diverse parasite pool can improve effectiveness of biological control constrained by genotype-by-genotype interactions
Open the record for dataset details and reuse information.
Data from: Miniaturization, genome size, and biological size in a diverse clade of salamanders
Open the record for dataset details and reuse information.
Local plant diversity and soybean biological control 2011 Aphid and Enemy Surveys:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Local plant diversity and soybean biological control 2012 Enemy Surveys:Biodiversity II: Effects of Plant Biodiversity on Population and Ecosystem Processes
Biodiversity II (E120) is designed to determine how the number of plant species affects the dynamics of ecological processes at the population, community, and ecosystem levels. By experimentally manipulating the number of species and the kinds of species, the amount of plant growth and the change from year to year, that result can be examined. Plots are large (9m x 9m actively maintained) and well-replicated, allowing responses of plant pathogens, insect herbivores, seed predators, soil parameters, invasive plant species and other variables to also be studied. Plots were seeded in May 1994 to have 1, 2, 4, 8, or 16 species, with roughly 30 replicates of each diversity level. The species composition of each plot was chosen by random draw from a pool of 18 grassland perennials that included four warm-season (C4) grasses, four cool-season (C3) grasses, four legumes, four non-legume forbs, and two woody species. All species occur in monoculture allowing comparison of responses of each species in monoculture to combinations of these same species. The experiment was established in 1994 by the lead investigators David Tilman, Peter Reich, Johannes Knops, and David Wedin. Experiment 120 is similar to Experiment 123, but it uses larger plots to provide a large capacity for long-term subexperiments.
Dataset used for the submitted manuscript "The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community"
<p>Dataset</p>
Data from: Landscape diversity and crop vigor influence biological control of the western grape leafhopper (E. elegantula Osborn) in vineyards
This study evaluated how the proportional area of natural habitat surrounding a vineyard (i.e. landscape diversity) worked in conjunction with crop vigor, cultivar and rootstock selection to influence biological control of the western grape leafhopper (Erythroneura elegantula Osborn). The key natural enemies of E. elegantula are Anagrus erythroneurae S. Trjapitzin & Chiappini and A. daanei Triapitsyn, both of which are likely impacted by changes in landscape diversity due to their reliance on non-crop habitat to successfully overwinter. Additionally, E. elegantula is sensitive to changes in host plant quality which may influence densities on specific cultivars, rootstocks and/or vines with increased vigor. From 2010–2013, data were collected on natural enemy and leafhopper densities, pest parasitism rates and vine vigor from multiple vineyards that represented a continuum of landscape diversity. Early in the season, vineyards in more diverse landscapes had higher Anagrus spp. densities and lower E. elegantula densities, which led to increased parasitism of E. elegantula. Although late season densities of E. elegantula tended to be lower in vineyards with higher early season parasitism rates and lower total petiole nitrogen content, they were also affected by rootstock and cultivar. While diverse landscapes can support higher natural enemy populations, which can lead to increased biological control, leafhopper densities also appear to be mediated by cultivar, rootstock and vine vigor.
Discussions of the not-so-fit: how ableism limits diverse thought and investigative potential in evolutionary biology
<p>Evolutionary biology and many of its foundational concepts are grounded in a history of ableism and eugenics. The field has not made a concerted effort to divest our concepts and investigative tools from this fraught history and as a result, an ableist investigative lens has persisted into present-day evolutionary research, limiting the scope of research and harming the ability to communicate and synthesize knowledge about evolutionary processes. This failure to divest from our eugenicist and ableist history has harmed progress in evolutionary biology and allowed principles from evolutionary biology to continue to be weaponized against marginalized communities in the modern-day. To rectify this problem, scholars in evolutionary research must come to terms with how the history of the field has influenced their investigations and work to establish a new framework for defining and investigating concepts, such as selection and fitness.</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.