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.
178
datasets available to search
ShareScore release 0.9.0
Dataset results
178 results for “island conservation”
Data from: Human-mediated extirpation of the unique Chatham Islands sea lion and implications for the conservation management of remaining New Zealand sea lion populations
While terrestrial megafaunal extinctions have been well characterized worldwide, our understanding of declines in marine megafauna remains limited. Here, we use ancient DNA analyses of prehistoric (<1450–1650 AD) sea lion specimens from New Zealand's isolated Chatham Islands to assess the demographic impacts of human settlement. These data suggest there was a large population of sea lions, unique to the Chatham Islands, at the time of Polynesian settlement. This distinct mitochondrial lineage became rapidly extinct within 200 years due to overhunting, paralleling the extirpation of a similarly large endemic mainland population. Whole mitogenomic analyses confirm substantial intraspecific diversity among prehistoric lineages. Demographic models suggest that even low harvest rates would likely have driven rapid extinction of these lineages. This study indicates that surviving Phocarctos populations are remnants of a once diverse and widespread sea lion assemblage, highlighting dramatic human impacts on endemic marine biodiversity. Our findings also suggest that Phocarctos bycatch in commercial fisheries may contribute to the ongoing population decline.
FIGURE 10 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 10. Breeding media of Brachyopa larvae on Populus nigra. A: state of the damaged area of the tree in 2007; B: state of the damaged area of the tree in 2013; C: female of B. minima sp. nov. ovipositing; D–F: microhabitat of Brachyopa larva.
FIGURE 8 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 8. Third instar larva of Brachyopa bicolor. Abbreviatios: 7as—7th abdominal segment; ans—anal segment; lplappets; prp—posterior breathing tube. Scale = 1 mm.
FIGURE 7 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 7. Apical view of posterior breathing tube of Brachyopa minima sp. nov. (SEM). Abbreviations: cs—central scars; is—interspiracular branched setae; so—spiracular opening.
FIGURE 9 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 9. Third instar larva of Brachyopa sp. aff. pilosa. Abbreviations: arb—arcuate row of rounded, dark brown blotches; 7as—7th abdominal segment; ans—anal segment; lp—lappets; prp—posterior breathing tube. Scale = 1 mm.
FIGURE 6 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 6. Third instar larva of Brachyopa minima sp. nov. Abbreviations: pls—prothoracic longitudinal stripes of conspicuous rounded brown blotches; dca—darker central area; st—sclerotized tubercles; 7as—7th abdominal segment; ansanal segment; lp—lappets; prp—posterior breathing tube. Scale = 1 mm.
FIGURE 4 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 4. Lateral view of male terminalia of Brachyopa minima sp. nov.; A–B: epandrium and hypandrium; C: aedeagus. Scale = 0.25 mm.
FIGURE 2 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 2. SEMs of head features of male Brachyopa minima sp. nov. A: face; B: orbital strip; C: antenna; D: scutellum.
FIGURE 5 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 5. Dorsal view of male terminalia of Brachyopa minima sp. nov. A: epandrium; B: surstylus (SEM); C: hypandrium; D: apex of hypandrium (SEM). Scale = 0.25 mm.
FIGURE 1 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 1. Head of Brachyopa minima sp. nov. (A & C: males; B & D: females). A–B: anterior view; C–D: lateral view. Scale = 0.5 mm.
FIGURE 3 in Brachyopa minima (Diptera: Syrphidae), a new species from Greece with notes on the biodiversity and conservation of the genus Brachyopa Meigen in the Northern Aegean Islands
FIGURE 3. Dorsal view of male mesonotum, with bare spots indicated by a, b and c. A–B: Brachyopa minima sp. nov.; C–D: Brachyopa quadrimaculosa. Scale = 1 mm.
Data from: The fifth review of Birds of Conservation Concern in the United Kingdom, Channel Islands and Isle of Man and second IUCN Red List assessment of extinction risk of birds for Great Britain
<p>The fifth review of <i>Birds of Conservation Concern</i> (<i>BoCC5</i>) in the UK, Channel Islands and Isle of Man assessed and assigned 245 species to updated Red, Amber and Green lists of conservation concern and showed a continuing decline in the status of our bird populations. In total, 70 species (29% of those assessed) are now on the Red list, up from 36 species in the first review in 1996. Since the last review, in 2015, Golden Oriole <i>Oriolus oriolus</i> has been lost as a breeding species. Eleven species have been moved to the Red list, while only six species moved from Red to Amber. Newly Red-listed species include Common Swift <i>Apus apus</i>, Common House Martin <i>Delichon urbicum</i>, Greenfinch <i>Chloris chloris</i> and the globally threatened Leach's Storm-petrel <i>Hydrobates leucorhous</i>. There has been no improvement in the overall status of species associated with farmland and upland, or Afro-Palearctic migrants; indeed, more such species have been Red-listed. Concerns over the status of our wintering wildfowl and wader populations have also increased. As a direct result of targeted conservation action, White-tailed Eagle <i>Haliaeetus albicilla</i> moves from Red to Amber.</p> <p>We also present a review of the separate, and distinct, second IUCN Regional Red List assessment of extinction risk for Great Britain, which show that 46% of 235 regularly occurring species, and 43% of 285 separate breeding and non-breeding populations, are assessed as being threatened with extinction from Great Britain.</p>
Conservation genetics of an island-endemic lizard: low Ne and the critical role of intermediate temperatures for genetic connectivity
<p>Island populations are at higher risk of extinction than mainland populations. Therefore, understanding the factors that facilitate connectivity is particularly pressing for the conservation of island taxa. <i>Sceloporus occidentalis becki</i>, the Island Fence Lizard, is an endemic taxon restricted to the Northern Channel Islands, part of a nearshore archipelago in Southern California, USA. Since the Last Glacial Maximum, fence lizard habitat on the Northern Channel Islands has decreased with rising sea levels and increasing temperatures that have reduced the availability of woody vegetation. More recently, the introduction (and subsequent removal) of invasive ungulates over the last 170 years and recovery of vegetation has resulted in further dramatic habitat modification. Given the potential for genetic bottlenecks, the history of habitat alteration, and topographic and landscape complexity, we used landscape and population genetic approaches to characterize patterns of genetic diversity and structure of Island Fence Lizards on Santa Cruz Island, the largest of the Northern Channel Islands. Our analyses revealed shallow population structure across the island, low effective population size (<i>N<sub>e</sub></i> = ~200), and evidence for a recent genetic bottleneck. Landscape genetic analyses showed that connectivity is facilitated by tree canopy cover and shrubland, as well as by intermediate temperatures, emphasizing the importance of woody vegetation and habitats with variable thermal regimes as the climate warms. Combined, these population and landscape genetic analyses suggest that the Island Fence Lizard is of greater conservation concern than currently appreciated, and increased conservation management focus is warranted for this island endemic.</p>
Supplementary material 1 from: Picanço A, Gil A, Rigal F, Borges PAV (2017) Pollination services mapping and economic valuation from insect communities: a case study in the Azores (Terceira Island). Nature Conservation 18: 1-25. https://doi.org/10.3897/natureconservation.18.11523
Supporting information : Explanation note: Description of the landscape disturbance index methodological approach according to Cardoso et al. (2013).
FIGURES 22–27. P. hyacinthus spec. nov. habitat and live specimens. 22, 23. Seal Bay Conservation Park. 24, 25 in A new zygaenid moth species from Kangaroo Island, South Australia (Lepidoptera: Zygaenidae: Procridinae)
FIGURES 22–27. P. hyacinthus spec. nov. habitat and live specimens. 22, 23. Seal Bay Conservation Park. 24, 25. Male (24) and female (25) feeding on flowers of Melaleuca lanceolata. 26. Male lateral, exposing the blue metallic body typical for live specimens of P. hyacinthus spec. nov. 27. Male, resting on a sedge, Gahnia deusta.
FIGURE 4 in A record of Notostraca on Socotra Island and the importance of local conservation of the habitat
FIGURE 4. Triops cf. granarius from Socotra Island (Yemen). A–C, carapace, lateral view in adult male (A) and females (B– C); females have small spines on the surface (trachyaspis form). D–E, carina in adult male (D) and female (E). Scale bars denote 5mm (A–C) and 1mm (D–E).
FIGURE 3 in A record of Notostraca on Socotra Island and the importance of local conservation of the habitat
FIGURE 3. Triops cf. granarius from Socotra Island (Yemen). A–B, carapace, lateral view in adult male (A) and female (trachyaspsis form) (B). C–D, carina, lateral view in male (C) and female (D). E, apodous segments, ventral view in male, showing supernumerary spines. F, Labrum adult female, ventral view. Scale bars denote 4mm (A–B), 2mm (E–F) and 1mm (C– D).
FIGURE 1 in A record of Notostraca on Socotra Island and the importance of local conservation of the habitat
FIGURE 1. Locality of Triops on Socotra Island. A, the Socotra Archipelago (Yemen) lies in the western Indian Ocean just off the Horn of Africa. B, Eriosh is situated at the northern coast of Socotra Island. C, relative position of Eriosh to coastal roads and two of the Socotra Conservation Zoning Plan 2000 categories; the site is currently located in a Resource Use Reserve; as the only place currently known on Socotra where Triops is found with other large branchiopods and only the second locality for the genus on Indian Ocean islands, Eriosh should be considered for a special protection status from a freshwater biodiversity conservation perspective.
FIGURE 5 in A record of Notostraca on Socotra Island and the importance of local conservation of the habitat
FIGURE 5. Triops cf. granarius from Socotra Island (Yemen). A–B, carapace in dorsal view of adult female (A) and male (B); female with small spines on the carapace (trachyaspis form). C, left posterior corner of carapace in female, dorsal view with spines on the surface. D, second maxilla, female. E, endopodite P2 female, setae on anterior face not shown. F, endopodite P6 female and adjacent endite, setae on anterior face not shown. G–I, telson female (G), details (H) and armature on terminal spines (I). Scale bars denote 10mm (A–B) and 1mm (C–I).
FIGURE 2. A in A record of Notostraca on Socotra Island and the importance of local conservation of the habitat
FIGURE 2. A, shallow temporary rockpool after rains on the limestone outcrops at the Eriosh archaeological site, Socotra Island (Yemen); no vegetation grows on the site, which is covered in a fine layer of sediment after rains; Photo KVD, January 2003. B, Triops cf. granarius from Socotra, adult female; scale bar denotes 1cm.
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.