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1,154 results for “Extant”
Figures 27–32. Some smaller copal pieces containing T in Extinct or extant? A new species of Termitodius Wasmann, 1894, (Coleoptera: Scarabaeidae: Aphodiinae: Rhyparini) with a short review of the genus
Figures 27–32. Some smaller copal pieces containing T. woodruffi paratypes, host termites and other inclusions. 27) CMNC. 28) REWC. 29–30) CEMT. Scale line = 1 mm. 31) IAvH-E. 32) FSCA (ex. RLBC), arrow indicates male with genitalia extracted, see Fig. 17. Photos for Figures 29–30 by Vinícius Costa-Silva (CEMT).
Figures 11–16 in Extinct or extant? A new species of Termitodius Wasmann, 1894, (Coleoptera: Scarabaeidae: Aphodiinae: Rhyparini) with a short review of the genus
Figures 11–16. Termitodius woodruffi, recent specimen, holotype. 11) Dorsal habitus. 12) Ventral habitus. 13) Lateral habitus. 14) Elytra apex, caudal view. 15) Head, anterior view. 16) Labels.
Monitoring demography of resurrected populations of locally extinct and extant species to investigate drivers of species loss
<p>Extinctions are predicted to rise by an order of magnitude over the next century. Although contemporary documented extinctions are uncommon, local extirpations likely provide hints about global extinction risks. Comparing responses to global change of locally extinct versus extant species pairs in a phylogenetic framework could highlight why certain species are more vulnerable to extinction than others and which anthropogenic changes are most relevant to their decline. As anthropogenic changes likely interact to affect population declines, demographic studies partitioning the effects of multifactorial stressors are needed but remain rare. I examine demographic responses to nitrogen addition and deer herbivory, two major drivers of species losses in grasslands, in experimental reintroductions of fourteen locally extinct and extant confamilial native plants from Michigan prairies. Nitrogen consistently reduces survival, especially in locally extinct species, and growth of locally extinct species benefits less from nitrogen than growth of extant species. Nitrogen reduces population growth rates, largely via reductions in survival. Deer herbivory, meanwhile, had inconsistent effects on vital rates among species and did not affect population growth. Nitrogen and herbivory rarely interacted to affect vital rates. These results link community-level patterns of species loss under nitrogen addition to the population-level processes underlying those losses.</p>
Fig. 3 in A world checklist of extant and extinct species of Megaloptera (Insecta: Neuropterida)
Fig. 3. Taxonomic description curve for valid extant, extinct, and total species of world Megaloptera by decade (based on data in Fig. 2).
Fig. 1 in A world checklist of extant and extinct species of Megaloptera (Insecta: Neuropterida)
Fig. 1. Representative habitus illustrations of megalopteran families and subfamilies. A–C. Adults. A. Acantha-corydalis orientalis (McLachlan, 1899) (Corydalidae: Corydalinae). B. Neochauliodes fraternus (McLachlan, 1869) (Corydalidae: Chauliodinae). C. Sialis sibirica McLachlan, 1872 (Sialidae: Sialinae). D–G. Larvae. D. Corydalus luteus (Hagen, 1861) (Corydalidae: Corydalinae). E. Orohermes crepusculus (Chandler, 1954) (Corydalidae: Chauliodinae). F. Sialis sp. (Sialidae: Sialinae). G. †Sharasialis fusiformis Ponomarenko, 2012 (Sialidae: †Sharasialinae) (after Ponomarenko 2012). Scale bars = 1 mm. Photos A–C by ©Xingyue Liu; D–F by ©Caleb C. Martins.
Fig. 2 in A world checklist of extant and extinct species of Megaloptera (Insecta: Neuropterida)
Fig. 2. Valid extant and extinct species of world Megaloptera established by decade; each species is attributed to the decade in which its currently valid species group-name was established. Subspecies are excluded.
Data and Scripts from: Bayesian prediction of multivariate ecology from phenotypic data yields novel insights into the diets of extant and extinct taxa
<p>Morphology often reflects ecology, enabling the prediction of ecological roles for taxa that lack direct observations such as fossils. In comparative analyses, ecological traits, like diet, are often treated as categorical, which may aid prediction and simplify analyses but ignores the multivariate nature of ecological niches. Futhermore, methods for quantifying and predicting multivariate ecology remain rare. Here, we ranked the relative importance of 13 food items for a sample of 88 extant carnivoran mammals, and then used Bayesian multilevel modeling to assess whether those rankings could be predicted from dental morphology and body size. Traditional diet categories fail to capture the true multivariate nature of carnivoran diets, but Bayesian regression models derived from living taxa have good predictive accuracy for importance ranks. Using our models to predict the importance of individual food items, the multivariate dietary niche, and the nearest extant analogs for a set of data-deficient extant and extinct carnivoran species confirms long-standing ideas for some taxa, but yields new insights about the fundamental dietary niches of others. Our approach provides a promising alternative to traditional dietary classifications. Importantly, this approach need not be limited to diet, but serves as a general framework for predicting multivariate ecology from phenotypic traits.</p>
FIG. 31 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 31. — Diplasterias turqueti Koehler, 1905: A, abactinal; B, actinal surfaces of a syntype; MNHN-IE-2014-615. Scale bar: 20 mm.
FIG. 30 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 30. — Anasterias studeri Perrier, 1891: A, abactinal; B, actinal surfaces of holotype; MNHN-IE-2014-83. Scale bar: 50 mm.
FIG. 32 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 32. — Asterina wesseli Perrier, 1875: A, abactinal; B, actinal surfaces of the holotype; MNHN-IE-2014-104. Scale bar: 5 mm.
FIG. 27 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 27. — Echinaster (Othilia) serpentarius Müller & Troschel, 1842: A, abactinal; B, actinal surfaces of a syntype. Scale bar: 20 mm.
FIG. 26 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 26. — Astropecten scoparius Müller and Troschel, 1842: abactinal surfaces of the syntypes; MNHN-IE-2014-579. Scale bar: 10 mm.
FIG. 25 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 25. — Astropecten richardi Perrier, 1875: A, abactinal; B, actinal surfaces of a Guiana syntype; MNHN-IE-2014-2. Scale bar: 50 mm.
FIG. 28 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 28. — Asteriscus setaceus Müller & Troschel, 1842: A, abactinal; B, actinal surfaces of holotype; MNHN-IE-2014-638. Scale bar: 50 mm.
FIG. 21 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 21. — Chaetaster nodosus Perrier, 1875: A, abactinal; B, actinal surfaces of the holotype; MNHN-IE-2014-21. Scale bar: 50 mm
FIG. 22 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 22. — Asterias obtusata Bory de Saint Vincent, 1824: A, abactinal; B, actinal surfaces of a syntype (MNHN-2013-IE-4352. Scale bar: 50 mm.
FIG. 19 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 19. — Ophidiaster marmoratus Michelin, 1844: A, abactinal; B, actinal surfaces of a syntype; MNHN-IE-2014-34. Scale bar: 20 mm.
FIG. 24 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 24. — Oreaster regulus Müller & Troschel, 1842: A, abactinal; B, actinal surface of the holotype; MNHN-IE-2014-25. Scale bar: 10 mm.
FIG. 23 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 23. — Myxaster perrieri Koehler, 1895: A, abactinal; B, actinal surfaces of the holotype; MNHN-IE-2014-604. Scale bar: 20 mm.
FIG. 20 in The type specimens of extant asteroids (Echinodermata) in the Muséum national d'Histoire naturelle of Paris
FIG. 20. — Scytaster monilis Perrier, 1869: A, abactinal; B, actinal surfaces of the holotype (MNHH-IE-2014-58).
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.