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549 results for “species extinction”
Figure 10 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 10. Inferred relative phylogenetic position of Macroderma handae sp. nov. based on observable synapomorphic features (modified after Hand, 1996; numbers indicate the development of potential apomorphic character states, as detailed in that reference).
Figure 5 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 5. Scanning electron micrographs of paratype material of Macroderma handae sp. nov. (A) fragment of the right maxilla with alveoli of the C1 and P4, paratype WAM 2020.4.5; (B) palatal fragment of left maxilla with lingual alveoli of P4 and M1, paratype WAM 2020.4.4; (C) detail of the blood vessel fenestrations in paratype WAM 2020.4.4; (D) probable wear striations on the M3, paratype WAM 2020.4.11; (E) wear striations from M. gigas ANWC CM568. Scale bars 1 mm, except where indicated otherwise.
Figure 8 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 8. Scanning electron micrographs of paratype material of Macroderma handae sp. nov. (A, B, D) lingual, labial and occlusal views of a left P2, paratype WAM 2020.4.8; (C) labial view of the left P2 of M. gigas ANWC CM568; (E, G, H) occlusal, lingual-oblique, and posterior views of a damaged left P4, paratype WAM 2020.4.12; (F) occlusal view of a left P4 of M. gigas ANWC CM568. Scale bars 1 mm.
Figure 4 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 4. Scanning electron micrographs of holotype and paratype material of Macroderma handae sp. nov. (A, C, E, G) occlusal, lingual, labial, and labial-oblique views of the left M2 from the holotype WAM 2020.4.1; (B, D, F, H) corresponding views of the left M2 of M. gigas ANWC CM568; (I) occlusal view of left M3, paratype WAM 2020.4.11; (J) left M3 of M. gigas ANWC CM568. Scale bars 1 mm.
Figure 7 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 7. Scanning electron micrographs of paratype material of Macroderma handae sp. nov. (A) anterior half of a right C1, paratype WAM 2020.4.7; (B) lingual view of a right C1 of M. gigas ANWC CM568; (C, D) labial and lingual views of a right C1 with a damaged paracone, paratype WAM 2020.4.9. Scale bars 1 mm.
Figure 6 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 6. Scanning electron micrographs of paratype material of Macroderma handae sp. nov. (A, C) occlusal-oblique views of a right M1, paratype WAM 2020.4.6; (B, D) corresponding views of the right M1 of M. gigas ANWC CM568; (E) occlusal view of a fragment of a right M2, paratype WAM 2020.4.10; (F) corresponding view of the right M2 of M. gigas ANWC CM568. Scale bars 1 mm.
Figure 9 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 9. Scanning electron micrographs of other unidentified and undescribed bat material recovered from the same deposit at Dingo Gap. (A–D) WAM 2020.4.13; (E–G) right C1 of an emballonurid, WAM 2020.4.14; (H) right C1 of an emballonurid, WAM 2020.4.15; (I, J) left C1 of an emballonurid, WAM 2020.4.16; (K, L) left C1 of an emballonurid, WAM 2020.4.17; (M, N) lingual and occlusal views of a fragment of dentary of a vespertilionid containing M1–M3 (M1 is on the right in both views), WAM 2020.4.18. Scale bars 1 mm.
Figure 3 in A New Species of Extinct False Vampire Bat (Megadermatidae: Macroderma) from the Kimberley Region of Western Australia
Figure 3. Scanning electron micrographs of holotype and paratype material of Macroderma handae sp. nov. (A) lateral view of the left dentary of holotype WAM 2020.4.1 with mostly intact M2, broken P4, M1 and M3, and alveoli of single-rooted P2 and C1; (B) occlusal view of the holotype WAM 2020.4.1 anterior to the M2; (C) occlusal view of a fragment of left dentary, paratype WAM 2020.4.3; (D, E) lateral and occlusal view of a fragment of left dentary, paratype WAM 2020.4.2; (F) digital photograph of the left dentary of M. gigas WAM M18284. Scale bars 1 mm.
Data from: Evolvability predicts evolutionary divergence in extant and extinct species
Heritable variation is a prerequisite for evolutionary change. Yet, whether genetic potential for microevolution is relevant on macroevolutionary timescales is debated. Here we show that evolutionary divergence among populations, and to a lesser extent among species, increases with microevolutionary evolvability in both extant and extinct taxa. We evaluate and reject a number of hypotheses put forward to explain this relationship and propose that an effect of evolvability on population and species divergence can be explained by the influence of genetic constraints on population's ability to track rapid stationary environmental fluctuations.
How to render species comparable taxonomic units through deep time: A case study on intraspecific osteological variability in extant and extinct lacertid lizards
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Chromosomal-level genome assembly of the scimitar‐horned oryx: insights into diversity and demography of a species extinct in the wild
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Data from: Species introductions shift seed dispersal potential more than extinctions across 120 island plant–frugivore communities
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Mitigating the extinction risk of globally threatened and endemic mountainous Orthoptera species: Parnassiana parnassica and Oropodisma parnassica
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Monitoring demography of resurrected populations of locally extinct and extant species to investigate drivers of species loss
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FIGURE 3 in A new and presumably extinct species of Ptychochromoides (Teleostei: Perciformes: Cichlidae) from central Madagascar
FIGURE 3. Ptychochromoides itasy, paratype, AMNH 233643, immature male, 106.3 mm SL; Madagascar.
FIGURE 2 in A new and presumably extinct species of Ptychochromoides (Teleostei: Perciformes: Cichlidae) from central Madagascar
FIGURE 2. Ptychochromoides itasy, holotype, UMMZ 243393, immature female, 123.2 mm SL; Madagascar.
Fig. 14 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Fig. 14. Proplebeia vetusta, sp. n., holotype, AMNHDR141481. Scale bar = 1.0 mm.
Fig. 5 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Fig. 5. Proplebeia dominicana, male, specimen AMNHDR141178. Scale = 1.0 mm.
Global extinction probabilities of terrestrial, freshwater, and marine species groups
<p>This is the updated dataset presented in the manuscript titled "Global extinction probabilities of terrestrial, freshwater, and marine species groups".</p> <p>The dataset gives the code (R code), as well as the resulting raster files for the suggested Global extinction probabilities for different taxonomic groups, for use in Life Cycle Impact Assessment (LCIA). We supply the results on 5arc minute resolution, aggregated for relevant spatial scales (e.g. terrestrial ecoregions or watersheds), as well as at country scale.</p> <p>For application in LCIA, we recommend applying GEPs to CFs with corresponding species groups and spatial scales. If the species group of the CFs do not match any of the provided GEPs, see (1); if the spatial scale of the CFs do not match any of the provided GEPs, see (2).</p> <ol> <li>If the species groups of the CFs do not match any of the provided sets of GEPs, we recommend recalculating GEPs for corresponding species groups and spatial scales based on the provided R scripts (e.g., see the R script for the freshwater heterotroph GEPs). Alternatively, GEPs can be aggregated to species group combinations by calculating species number-weighted GEP averages of the existing GEPs (see Table 4 in the article for species numbers per species group). In case of the latter approach, we recommend calculate GEP averages for all regions across the world (and not just those included in the analysis) and normalise the region-level average GEPs by the sum of the region-level average GEPs for consistency with the GEP concept.</li> <li>In addition to species group aggregation, GEPs can be aggregated to different spatial scales by calculating the sum of the cell-level GEPs contained per region (e.g., see R scripts).</li> </ol> <p> </p> <p>Updates: corrected mistakes in cnidarians. Removedcpiuntry GEPs for marine species groups.</p>
Bushmeat yields, species extinction rates and ecosystem-level impacts of bushmeat harvesting as predicted by the Madingley General Ecosystem Model
<p>The datasets contain data generated using the Madingley General Ecosystem Model for experiments decribed in the paper: "T. Barychka, G.M.Mace and D.W.Purves (2021) The Madingley General Ecosystem Model predicts bushmeat yields, species extinction rates and ecosystem-level impacts of bushmeat harvesting. Oikos."</p> <p>The Madingley General Ecosystem Model was used to generate predictions of bushmeat yields, extinction rates and broader ecosystem impacts for a range of harvesting intensities of duiker-sized endothermic herbivores. Duiker antelope (such as <i>Cephalophus callipygus</i> and <i>Cephalophus dorsalis</i>) are the most heavily hunted species in sub-Saharan Africa, contributing 34%-95% of all bushmeat in the Congo Basin. In the Madingley, the harvested group was described as "Heterotroph – Herbivore – Terrestrial – Mobile – Iteroparous– Endotherm", with adult bodymasses of 13-21 kg and juvenile bodymasses of >100 g. Harvesting period was set at 30 years (<em>n </em>=30).</p> <p>In the first experiment, we used the Madingley model to predict bushmeat yields ("Harvested Biomasses") and extinction rates ("Density") from harvesting duiker-sized herbivores using proportional harvesting strategy, with harvest rates ranging from 0 to 0.90. These were compared to the estimates of bushmeat yields and survival probabilities for two duiker antelope species (<i>Cephalophus callipygus</i> and <i>Cephalophus dorsalis) </i>from conventional single-species Beverton-Holt model. </p> <p>In the second experiment, we used the Madingley model to generate data on the state ("State") of the harvested ecosystem. The datasets contain estimates of biomasses, abundances, adult and juvenile bodymasses, etc. of the harvested duiker-sized herbivores as well as unharvested herbivores, omnivores and carnivores present in the simulated ecosystem. In the paper we focused on abundances; however, other estimates e.g., adult bodymasses can be used to conduct further studies on the effects of harvesting in tropical ecosystems.</p> <p>Main results of the experiments are that: 1) the Madingley model gave estimates for optimal harvesting rate, and extinction rate, that were qualitatively and quantitatively similar to the estimates from conventional single-species Beverton-Holt model; 2) the Madingley model predicted a background local extinction probability for the target species of at least 10%; 3) at medium and high levels of harvesting of duiker-sized herbivores, the Madingley model predicted statistically significant, but moderate, reductions in the densities of the targeted functional group; increases in small-bodied herbivores; decreases in large-bodied carnivores; and minimal ecosystem-level impacts overall.</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.