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8,782 results for “Natural History”
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1 (Continued)
APPENDIX 1 in An Annotated Catalog of the African Primate Genera Colobus and Procolobus (Cercopithecidae: Colobinae) in the Collections of the American Museum of Natural History
APPENDIX 1
Fig. 2. Ephemera glaucops F.-J. Pictet, 1843 in Mayfly types and additional material (Insecta: Ephemeroptera) examined by F.-J. Pictet and A.-E. Pictet, housed in the Museums of Natural History of Geneva and Vienna
Fig. 2. Ephemera glaucops F.-J. Pictet, 1843, labels of one male imago syntype.
Fig. 8 in Mayfly types and additional material (Insecta: Ephemeroptera) examined by F.-J. Pictet and A.-E. Pictet, housed in the Museums of Natural History of Geneva and Vienna
Fig. 8. Teloganopsis hispanica (Eaton, 1888). Male imago holotype. Scale bar: 1 mm.
Fig. 10 in Mayfly types and additional material (Insecta: Ephemeroptera) examined by F.-J. Pictet and A.-E. Pictet, housed in the Museums of Natural History of Geneva and Vienna
Fig. 10. Rhithrogena cincta Navás, 1921. Male imago in lateral view. Scale bar: 1 mm.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Sarah Tassell, <a href="https://orcid.org/0000-0002-8083-3111">https://orcid.org/0000-0002-8083-3111</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Fig. 1 in Late Pleistocene Birds from Binagada (Azerbaijan) in Collection of the National Museum of Natural History (Kyiv, Ukraine)
Fig. 1. Map of Azerbaijan showing the location of the Binagada asphalt lake.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Stylianos Chatzimanolis, <a href="https://orcid.org/0000-0001-9008-0611">https://orcid.org/0000-0001-9008-0611</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history and community science records confirm rapid geographic shifts in the distribution of Bachman's Sparrow (Peucaea aestivalis) since 1850
<p>North American grassland birds colonized emerging habitat created by expanding agriculture in a pattern of eastward expansions from the mid-1800s to mid-1900s. These birds have been declining, since at least the mid1900s, largely as result of anthropogenic landscape change. Only one bird that now breeds predominantly in southeastern pine savannas is thought to have experienced a concurrent range expansion into this region: <em>Peucaea aestivalis </em>(Bachman's Sparrow). However, our understanding of the <em>P. aestivalis</em> expansion, and subsequent retraction to the southeastern United States, is largely based on a contemporaneous review of only a subset of historical records from beyond its modern, northern limit. We suggest an alternative explanation for these historical records is that <em>P. aestivalis</em> historically occurred more broadly than was recognized in contemporaneous literature. To evaluate these hypotheses, we reviewed field observations from literature, natural history collections, and eBird to show how <em>P. aestivalis </em>presence throughout eastern North America has shifted since the mid-1800s. To confirm that these findings were not the result of detection bias, we repeated our analysis on a common sparrow species (<em>Spizella pusilla</em>) with a largely overlapping breeding range, but no history of expansion and retraction. We confirm that <em>P. aestivalis</em> expanded its range, but add that prior to that expansion, its historical distribution was broader than commonly acknowledged today. As a result, we identify the northwestern historical limit of <em>P. aestivalis</em>, the Ouachita and Ozark highlands, as a potential source region for an eastward expansion that is consistent with those of other North American grassland birds of the era. We discuss the potential evolutionary and conservation implications of this range expansion on <em>P. aestivalis</em> given our more nuanced understanding of it. Anthropogenic landscape change initially provided additional habitat for <em>P. aestivalis</em> but has ultimately resulted in a reduction of the <em>P. aestivalis</em> distribution.</p>
First large-scale quantification study of DNA preservation in insects from natural history collections using genome-wide sequencing
<p>Insect declines are a global issue with significant ecological and economic ramifications. Yet we have a poor understanding of the genomic impact these losses can have. Genome-wide data from historical specimens has the potential to provide baselines of population genetic measures to study population change, with natural history collections representing large repositories of such specimens. However, an initial challenge in conducting historical DNA data analyses, is to understand how molecular preservation varies between specimens. Here, we highlight how Next Generation Sequencing methods developed for studying archaeological samples can be applied to determine DNA preservation from only a single leg taken from entomological museum specimens, some of which are more than a century old. An analysis of genome-wide data from a set of 113 red-tailed bumblebee (Bombus lapidarius) specimens, from five British museum collections, was used to quantify DNA preservation over time. Additionally, to improve our analysis and further enable future research we generated a novel assembly of the red-tailed bumblebee genome. Our approach shows that museum entomological specimens are comprised of short DNA fragments with mean lengths below 100 base pairs (BP), suggesting a rapid and large-scale post-mortem reduction in DNA fragment size. After this initial decline, however, we find a relatively consistent rate of DNA decay in our dataset, and estimate a mean reduction in fragment length of 1.9bp per decade. The proportion of quality filtered reads mapping our assembled reference genome was around 50 %, and decreased by 1.1 % per decade. We demonstrate that historical insects have significant potential to act as sources of DNA to create valuable genetic baselines. The relatively consistent rate of DNA degradation, both across collections and through time, mean that population level analyses - for example for conservation or evolutionary studies - are entirely feasible, as long as the degraded nature of DNA is accounted for. </p>
Natural history specimens collected and/or identified and deposited.
<p>Natural history specimen data collected and/or identified by David Peter Shorthouse, <a href="https://orcid.org/0000-0001-7618-5230">https://orcid.org/0000-0001-7618-5230</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.</p>
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Terrence Demos, <a href="https://orcid.org/0000-0003-0522-3708">https://orcid.org/0000-0003-0522-3708</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Erica Krimmel, <a href="https://orcid.org/0000-0003-3192-0080">https://orcid.org/0000-0003-3192-0080</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Karen Salazar, <a href="https://orcid.org/0000-0002-2284-6379">https://orcid.org/0000-0002-2284-6379</a>. Claims were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Figs 1–5 in Millipedes of the order Chordeumatida (Diplopoda) from the Russian Far East and Siberia in the collection of the Natural History Museum of Denmark
Figs 1–5. Altajosoma kultukensis sp. n., male holotype. 1 – coxa and trochanter 10; 2 –
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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)
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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.