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.
7,849
datasets available to search
ShareScore release 0.9.0
Dataset results
7,849 results for “Conservancy”
Data from: Molecular phylogeny, revised higher classification, and implications for conservation of endangered Hawaiian leaf-mining moths (Lepidoptera: Gracillariidae: Philodoria)
The leaf-mining moth genus Philodoria Walsingham (Lepidoptera: Gracillariidae) is composed of 30 described species, all of which are endemic to the Hawaiian Islands. Philodoria is known to feed on 10 families of endemic Hawaiian host plants, with several species recorded only from threatened or endangered hosts. Beyond their dependence on these plants, little is known of their evolutionary history and conservation status. We constructed a molecular phylogeny of Philodoria to assess validity of its current subgeneric classification and to help guide future work on this threatened Hawaiian lineage. Mitochondrial and nuclear DNA sequences from three genes (CO1, CAD, EF-1α) combining for a total of 2,041 base pairs, were collected from 11 Philodoria species, incorporating taxa from both currently recognized subgenera. These data were analyzed using both parsimony and model-based phylogenetic approaches. Contrary to the most recent systematic treatment of Philodoria, our results indicate strongly that the two currently recognized Philodoria subgenera are not monophyletic and that morphological characters used to classify them are homoplasious. Based on our robust results, we revised the higher classification of Philodoria: the subgenus Eophilodoria Zimmerman, 1978 is established as subjective junior synonym of Philodoria Walsingham, 1907. We also present new host plant and distribution data and discuss host range of Philodoria as it pertains to endangered Hawaiian plants.
Fine-scale variation in projected climate change presents opportunities for biodiversity conservation in Europe
<p>We use a multi-model ensemble of regional climate models to identify areas with significantly high and low climate stability persistent throughout the 21<sup>st</sup> century in Europe.</p> <p>Here we present a set of raster files that contain discrete zones of climatic stability and instability, also referred to as hotspots and coldspots. Our analysis of future climatic stability was based on projected changes of nine climate variables selected to proxy key aspects of terrestrial ecosystem dynamics. The underlying climate projection, including different indices, are available at <a href="https://zenodo.org/record/3952159#.YNWN_OgzaUl">https://zenodo.org/record/3952159#.YNWN_OgzaUl</a>. The cumulative change of all nine climate variables, termed Aggregate Climate Change (ACC), is used to identify regions of significantly higher or lower climatic stability (Getis-Ord Gi* p-value < 0.05) across Europe. We carry out this assessment at the continental and regional scales. While the continental assessment reports the large-scale latitudinal and orographic patterns of climatic stability, the regional assessment explores the residual ACC variation that remained after extracting the large-scale continental trend. The raster files present climatic features that were identified to persist in their location throughout the 21<sup>st</sup> century (i.e., in periods 2021-2040, 2041-2060, and 2061-2100) and were supported by a majority of climate projections considered in this study. Specifically, we considered five GCM-RCM pairs driven by two RCP scenarios, RCP4.5 and RCP8.5. The targeted areas of climatic stability were required to be confirmed by four out of five climate models nested within each RCP, at least.</p> <p>The used naming convention is as follows:</p> <ul> <li>Scale – Global, Regional</li> <li>Type of the zone – HotSpot (zone of significantly low climatic stability), ColdSpot (zone of significantly high climatic stability)</li> <li>Driving RCP scenario – RCP45, RCP85</li> </ul> <p>Raster files with RCP indicated in their name refer to either RCP4.5 or RCP8.5. These files contain two values referring to the presence (1) or absence (0) of climatic stability areas:</p> <p>Global_HotSpots _RCP45</p> <p>Global_ColdSpots _RCP45</p> <p>Regional_HotSpots _RCP45</p> <p>Regional_ColdSpots _RCP45</p> <p>Global_HotSpots _RCP85</p> <p>Global_ColdSpots _RCP85</p> <p>Regional_HotSpots _RCP85</p> <p>Regional_ColdSpots _RCP85</p> <p>Raster files without RCP code in their name contain combinations of both RCPs. The cell values indicate absence (0), presence in RCP4.5 OR RCP8.5 (1), or presence in RCP4.5 AND RCP8.5 (2) of climatic stability areas:</p> <p>Global_HotSpots</p> <p>Global_ColdSpots</p> <p>Regional_HotSpots</p> <p>Regional_ColdSpots</p> <p>The format of raster files is tiff. All data are in the GCS_WGS_1984 geographic coordinate system.</p>
Statistics, probability, and a failed conservation policy
<p>Many sightings of the Ivory-billed Woodpecker (<i>Campephilus principalis</i>) have been reported during the past several decades, but nobody has managed to obtain the clear photo that is regarded as the standard form of evidence for documenting birds. Despite reports of sightings by teams of ornithologists working independently in Arkansas and Florida, doubts cast on the persistence of this iconic species have impeded the establishment of a meaningful conservation program. An analysis of the expected waiting time for obtaining a photo provides insights into why the policy of insisting upon ideal evidence has failed for this species. Concepts in statistics and probability are used to analyze video footage that was obtained during encounters with birds that were identified in the field as Ivory-billed Woodpeckers. One of the videos shows a series of events that are consistent with that species and are believed to be inconsistent with every other species of the region. Another video shows a large bird in flight with the distinctive wing motion of a large woodpecker. Only two large woodpeckers occur in the region, and the flap rate is about ten standard deviations greater than the mean flap rate of the Pileated Woodpecker (<i>Dryocopus pileatus</i>).</p>
FIGURE 1 in A checklist of the freshwater ichthyofauna from El Petén and Alta Verapaz, Guatemala, with notes for its conservation and management
FIGURE 1. Historical collection localities and collectors from El Petén and Alta Verapaz, Guatemala. Allgayer, R. 1991, 2002; Kihn, P. H. A. 2001; Barrientos, C. C. 1999; Bussing, W. A. & Martin, M. 1975; Collete, B. B. 1974; Glaser, U., F. Schafer, & W. Glaser. 1996; Granados, D. P. 2001; Greenfield, D. W. & J. E. Thomerson. 1997; Grey, M. 1947; ⌧Günther, A. 1868; Hubbs, C. L. 1935, 1950; Meek, S. E. 1907; Miller, R. R. 1955, 1966, 1971, 1976, 1982, 1986; Molina, O. 2000; Meyer, M. K. & M. Schartl. 2002; Poeser, F. N. 2002; Surveys by the authors of this paper in 2001, 2002, 2003; Regan, C. T. 19061908; Rivas, R. L. 1962; Rosen, D. E. 1967, 1969 1970, 1972,1979; Theodorakis, C. & J. W. Bickhan. 2000; Willink, P. W. et al. 2000.
Data from: Cytogenetics, geographic distribution, conservation and new species of Macrotorus (Mollinedioideae, Monimiaceae) from the Brazilian Atlantic rainforest
A new species of Macrotorus (Monimiaceae) from the Brazilian Atlantic rainforest is here described and illustrated: M. genuflexus. This species, restricted to the Poço das Antas Biological Reserve (situated in the central region of Rio de Janeiro state, Brazil), is the second in the genus Macrotorus. The new species description is based on morphological and cytogenetic (karyotype and genome size - GS) comparative analyses. We also report a new record of Macrotorus utriculatus for the state of Bahia, confirming a potential distribution modeling prediction and provide comments for the conservation of both species.
FIGURE 3 in Diversity, chorology and conservation of the grasses (Poaceae) in Serra do Ouro Branco, State of Minas Gerais, Brazil
FIGURE 3. Habitats and dominant species in Serra do Ouro Branco, State of Minas Gerais, Brazil. A. Axonopus brasiliensis, inflorescence. B. Paspalum erianthum, inflorescence. C. campo rupestre with Trachypogon spicatus. D. Paspalum pectinatum, inflorescence. E. campo rupestre with Vellozia compacta. F. Paspalum polyphyllum growing in rock crevices. G. rocky outcrops with Apochloa poliophylla. H. Aulonemia effusa. Photo credit: H.M. Longhi-Wagner.
FIGURE 2. Poaceae genera that exhibited a in Diversity, chorology and conservation of the grasses (Poaceae) in Serra do Ouro Branco, State of Minas Gerais, Brazil
FIGURE 2. Poaceae genera that exhibited a higher species richness in Serra do Ouro Branco, State of Minas Gerais, Brazil.
FIGURE 1 in Diversity, chorology and conservation of the grasses (Poaceae) in Serra do Ouro Branco, State of Minas Gerais, Brazil
FIGURE 1. Geographic location of Serra do Ouro Branco and other localities within the Espinhaço Range mentioned in the text (States of Minas Gerais and Bahia, Brazil).
FIGURE 5. A in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 5. A typical view of the forest, 12 months after the clearfell, burn and sow treatment has been applied (Photo: J.Jarman).
FIGURE 1. A in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 1. A forest edge, showing the typical layered structure of the vegetation. Eucalypts up to about 50 m tall form a canopy over a dense layer of secondary trees about 18–25 m tall. A layer, 1–3 m tall and dominated by the large rosette sedge Gahnia grandis and a vigorous scrambling shrub Bauera rubioides, is present in the understorey (Photo: J.Jarman).
FIGURE 2 in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 2. The forest interior in a poorly drained site, where the flakey-barked tree Melaleuca squarrosa dominates the low tree layer. An opening in the Gahnia-dominated layer provides an opportunity for shade-loving cryptogams to colonise the logs and ground surface (Photo: J.Jarman).
FIGURE 6. A in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 6. A comparison of Figures 5 and 6, taken from the same place, demonstrates the dynamic nature of the vegetation in the early years after harvesting. Five to six years after the clearfell, burn and sow treatment, the large stump in Figure 5 is completely obscured by the vigorous growth of young eucalypts and Gahnia (Photo: J.Jarman).
FIGURE 4 in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 4. The forest interior, with scattered large fibrous-barked eucalypts interspersed among the smaller understorey trees (Photo: J.Jarman).
FIGURE 3 in Lichens and bryophytes in Tasmanian wet eucalypt forest: floristics, conservation and ecology
FIGURE 3. The forest interior at a site with moderate drainage, where the smooth-barked tree Nematolepis squamea is common and the shrub Bauera dominates the understorey. A large rock in the background provides a substrate for cryptogams raised above the dense shrubbery (Photo: J.Jarman).
FIGURE 2 in Two new records of Jumellea (Orchidaceae) for Mauritius (Mascarene Islands) and their conservation status
FIGURE 2. Distribution of the newly recorded Jumellea exilis (black dots) and J. rossii (grey square) on Mauritius. Each symbol covers an area of 1×1 km.
FIGURE 1. Jumellea exilis from Mauritius. A in Two new records of Jumellea (Orchidaceae) for Mauritius (Mascarene Islands) and their conservation status
FIGURE 1. Jumellea exilis from Mauritius. A. Side view of flower showing the long spur. B. Front view of flower. C. The largest known colony on Mauritius, growing near the summit of Le Pouce Mountain in steep cliffs inaccessible to introduced monkeys (Macaca fascicularis) which are known to rip and chew on Jumellea in Mauritius.
FIGURE 5. Sphyrospermum rotundifolium. A. Branches. B. Stem showing leaves undersurfaces and axillary flowers. C in Nomenclature, taxonomy, and conservation of the neotropical genus Sphyrospermum (Ericaceae: Vaccinieae), including five new species for Colombia, Ecuador, and Peru
FIGURE 5. Sphyrospermum rotundifolium. A. Branches. B. Stem showing leaves undersurfaces and axillary flowers. C. Mature flower showing basal bracteoles, pedicel, calyx, and corolla. D. Longitudinal section of corolla showing some stamens. E. Calyx post anthesis. F. Stamens shown in lateral, dorsal, and ventral views. Illustration by Bobbi Angell (drawn from holotype).
FIGURE 6. Sphyrospermum xanthocarpum. A. Branch bearing fruits with a detail. B in Nomenclature, taxonomy, and conservation of the neotropical genus Sphyrospermum (Ericaceae: Vaccinieae), including five new species for Colombia, Ecuador, and Peru
FIGURE 6. Sphyrospermum xanthocarpum. A. Branch bearing fruits with a detail. B. Floral bud on the left and a mature flower with basal bracteoles, pedicel, calyx and corolla on the right. C. Longitudinal sections of the calyx and corolla; the corolla showing some stamens. D. Two adjacent stamens in dorsal view, two adjacent stamens in ventral view, and two stamens in lateral view; thecae bearing a basal appendage. Illustration by Bobbi Angell (drawn from holotype).
FIGURE 1 in Nomenclature, taxonomy, and conservation of the neotropical genus Sphyrospermum (Ericaceae: Vaccinieae), including five new species for Colombia, Ecuador, and Peru
FIGURE 1. Exemplary species of Sphyrospermum. A. S. buxifolium with white-colored flowers and fruits (cultivated at the New York Botanical Garden); B. Pressed fruit of S. buxifolium showing translucent-white seeds with green embryos; C. S. buxifolium with inset of lilac-colored fruits (cultivated at the New York Botanical Garden); D. S. dissimile; E. S. munchiqueense; F. S. xanthocarpum with inset of habit (cultivated in Colombia). Photographers: A–C, Paola Pedraza-Peñalosa; D–E, James L. Luteyn; F, William Vargas.
FIGURE 3. Sphyrospermum glutinosum. A in Nomenclature, taxonomy, and conservation of the neotropical genus Sphyrospermum (Ericaceae: Vaccinieae), including five new species for Colombia, Ecuador, and Peru
FIGURE 3. Sphyrospermum glutinosum. A. Branch with detail of stem pubescence. B. Portion of stem with post anthesis flowers. C. Mature flower showing basal bracteoles, pedicel, calyx, and corolla. D. Longitudinal section of calyx and corolla; the calyx with detail of glandular hairs and the corolla showing some stamens. E. Three adjacent stamens in dorsal view, three adjacent stamens in ventral view, and two stamens in lateral view; thecae bearing a basal appendage. Illustration by Bobbi Angell [A, C–E drawn from Suin 342 (MO); B drawn from Pedraza & Salinas 1233 (NY)].
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.