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242 results for “Humboldt”
Vortex input file -- Humboldt penguin PVA
<p>Vortex project input file for PVA of Humboldt penguins, completed by workshop participants in Lima, Peru, 2019. Report of the full PHVA and PVA workshop is provided in:</p> <p>McGill, P., A. Baker, R. Lacy, R. Paredes, J. Reyes, J. Rodriguez, A. Tieber, & R. Wallace, (eds.) 2021. Humboldt penguin (Spheniscus humboldti) Population and Habitat Viability Assessment Workshop Final Report. IUCN SSC Conservation Planning Specialist Group, Apple Valley, MN, USA. A PDF of this workshop report can be downloaded at: www.cpsg.org.<br> </p>
Figs 43-48 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 43-48: Aedeagus in lateral and ventral views, habitus. (43-44) Diplopleurus perfidus nov.sp.; (45-48) Diplopleurus anterugosus nov.sp. Habitus scale bar Fig. 45: 4.6 mm, other scale bars: 0.1 mm.
Figs 37-42 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 37-42: Habitus, aedeagus in lateral and ventral views, spermatheca. (37-40) Diplopleurus antepolitus nov.sp.; (41-42) Diplopleurus perfidus nov.sp. Habitus scale bar Fig. 37: 3.7 mm; Fig. 41: 3.7 mm, other scale bars: 0.1 mm.
Figs 32-36 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 32-36: Habitus, aedeagus in lateral and ventral views, spermatheca. (32-34) Pelioptera alticola nov.sp.; (35-36) Brachysipalia errans nov.sp. Habitus scale bar Fig. 32: 2.3 mm; Fig. 35: 2.2 mm, other scale bars: 0.1 mm.
Figs 26-31 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 26-31: Habitus, spermatheca, aedeagus in lateral and ventral views. 26-27: Atheta (Tropatheta) kibwezicola nov.sp.; (28-31) Atheta (Oxypodera) togoensis nov.sp. Habitus scale bar Fig. 26: 3.1 mm; Fig. 28: 2 mm, other scale bars: 0.1 mm.
Figs 19-25 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 19-25: Aedeagus in lateral and ventral views, habitus, spermatheca. (19-20) Longiprimitarsus kamerunensis nov.sp.; (21-22) Derelina lata nov.sp.; (23-25) Geopora pascuorum nov.sp. Habitus scale bar Fig. 21: 1.4 mm; Fig. 23: 2 mm, other scale bars: 0.1 mm.
Figs 13-18 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 13-18: Habitus, aedeagus in lateral and ventral views, sixth visible tergite of male, spermatheca. (13-16) Coenonica foeminea nov.sp.; (17-18) Longiprimitarsus kamerunensis nov.sp. Habitus scale bar Fig. 13: 2.7 mm; Fig. 18: 2.4 mm, other scale bars: 0.1 mm.
Figs 1-5 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 1-5: Habitus, aedeagus in lateral and ventral views, spermatheca: (1-3) Nopromaea inintellecta nov.sp.; (4-5) Nopromaea kamerunensis nov.sp. Habitus scale bar Fig. 1: 4.1 mm; Fig. 4: 4.1 mm, other scale bars: 0.1 mm.
Figs 6-12 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 6-12: Habitus, aedeagus in lateral and ventral views, spermatheca, sixth visible tergite of male. (6-10) Tomoxelia problematica nov.sp.; (11-12) Brachida luciphila nov.sp. Habitus scale bar Fig. 6: 3.7 mm; Fig. 11: 1.8 mm, other scale bars: 0.1 mm.
Figs 65-70 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 65-70: Habitus, aedeagus in lateral and ventral views, spermatheca. (65-67) Zyras (Camonia) malawensis nov.sp.; (68-69) Zyras (Camonia) bayeri nov.sp.; (70) Zyras (Ctenodonia) sericeicollis nov.sp. Habitus scale bar Fig. 65: 7 mm; Fig. 68: 6.1 mm; Fig. 70: 6 mm, other scale bars: 0.1 mm.
Figs 71-76 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 71-76: Aedeagus in lateral and ventral views, habitus, spermatheca. (71-72) Zyras (Ctenodonia) sericeicollis nov.sp.; (73-74) Zyras (Ctenodonia) torosus nov.sp.; (75-76) Zyras (Ctenodonia) gombanus nov.sp. Habitus scale bar Fig. 73: 6 mm, Fig. 75; 9 mm, other scale bars: 0.1 mm.
Figs 57-64 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 57-64: Habitus, aedeagus in lateral and ventral views, spermatheca. (57-60) Zyras (Camonia) pugnax nov.sp.; (61-64) Zyras (Camonia) civilis nov.sp. Habitus scale bar Fig. 57: 6 mm; Fig. 61: 5.5 mm, other scale bars: 0.1 mm.
Figs 49-56 in New data and new species of Aleocharinae from Tropical Africa in the Natural History Museum of the Humboldt University, Berlin (Coleoptera, Staphylinidae)
Figs 49-56: Habitus, aedeagus in lateral and ventral views, spermatheca. (49-52) Zyras (Parophthalmonia) relegatus nov.sp.; (53-56) Zyras (Camonia) vescus nov.sp. Habitus scale bar Fig. 49: 6 mm; Fig. 53: 6 mm, other scale bars: 0.1 mm.
Figs. 72–76. Titiotus humboldt, new species. 72. Left male palp, prolateral view. 73 in A Revision of the Endemic Californian Spider Genus Titiotus Simon (Araneae, Tengellidae)
Figs. 72–76. Titiotus humboldt, new species. 72. Left male palp, prolateral view. 73. Same, ventral view.
Flujo de trabajo de Proyecto Humboldt Digital (ProHD). Digitalización
<p>Este diagrama contiene los pasos principales para digitalizar documentos en el contexto de Proyecto Humboldt Digital.</p>
Flujo de trabajo de Proyecto Humboldt Digital (ProHD). Edición
<p>Este diagrama contiene los pasos principales para editar documentos textuales en el contexto de Proyecto Humboldt Digital.</p>
Main Entrance 1/2 - Humboldt Universitaet Berlin
One of two stone sculptures adorning the top of the main entry gate of the Humboldt University Campus in Mitte (central Berlin). Source: Objaverse 1.0 / Sketchfab
Data from: environmental DNA reveals temporal variation in mesophotic reefs of the Humboldt upwelling ecosystems of central Chile: towards a baseline for biodiversity monitoring of unexplored marine habitats
<p>Temperate mesophotic reef ecosystems (TMREs) are among the least known marine habitats. Information on their diversity and ecology is geographically and temporally scarce, especially in highly productive large upwelling ecosystems. Lack of information remains an obstacle to understanding the importance of TMREs as habitats, biodiversity reservoirs and their connections with better-studied shallow reefs. Here, we use environmental DNA (eDNA) from water samples to characterize the community composition of TMREs on the central Chilean coast generating the first baseline for monitoring the biodiversity of these habitats. We analyzed samples from two depths (30 and 60m) over four seasons (spring, summer, autumn, and winter) and at two locations approximately 16 km apart. We used a panel of three metabarcodes, two that target all eukaryotes (18S rRNA and mitochondrial COI) and one specifically targeting fishes (16S rRNA). All panels combined encompassed eDNA assigned to 42 phyla, 90 classes, 237 orders, and 402 families. The highest family richness was found for the phyla Arthropoda, Bacillariophyta and Chordata. Overall, family richness was similar between depths but decreased during summer, a pattern consistent at both locations. Our results indicate that the structure (composition) of the mesophotic communities varied predominantly with seasons. We analyzed further the better-resolved fish assemblage and compared eDNA with other visual methods at the same locations and depths. We recovered eDNA from nineteen genera of fish, six of these have also been observed on towed underwater videos, while thirteen were unique to eDNA. We discuss the potential drivers of seasonal differences in community composition and richness. Our results suggest that eDNA can provide valuable insights for monitoring TMRE communities but highlight the necessity of completing reference DNA databases available for this region.</p>
Monthly surface chlorophyll-a data and ENSO composites in the Northern Humboldt Current System
<p>This dataset comprises monthly maps of surface chlorophyll-a concentrations derived from the ESACCI-OC product, covering the region between 0-20°S and 70-90°W at a high spatial resolution of 4 km. In addition to the raw chlorophyll-a data, the dataset includes ENSO phase composites—monthly climatologies that characterize typical conditions during El Niño, La Niña, and ENSO-neutral phases. These composites provide valuable insights into the variability and trends in ocean productivity associated with different ENSO conditions, offering a comprehensive view of the temporal and spatial patterns of chlorophyll-a in the study area.</p>
Predicted distribution of a rare and understudied forest carnivore: Humboldt martens (Martes caurina humboldtensis)
<p>Many mammalian species have experienced range contractions. Following a reduction in distribution that has resulted in apparently small and disjunct populations, the Humboldt marten (<em>Martes caurina humboldtensis</em>) was recently designated as federally Threatened and state Endangered. This subspecies of Pacific marten occurring in coastal Oregon and northern California, also known as coastal martens, appear unlike martens that occur in snow-associated regions in that vegetation associations appear to differ widely between Humboldt marten populations. We expected current distributions represent realized niches, but estimating factors associated with long-term occurrence was challenging for this rare and little-known species. Here, we assessed the predicted contemporary distribution of Humboldt martens and interpret our findings as hypotheses correlated with the subspecies' niche to inform strategic conservation actions. We modeled Humboldt marten distribution using a maximum entropy (Maxent) approach. We spatially-thinned 10,229 marten locations collected from 1996–2020 by applying a minimum distance of 500-m between locations, resulting in 384 locations used to assess correlations of marten occurrence with biotic and abiotic variables. We independently optimized the spatial scale of each variable and focused development of model variables on biotic associations (e.g., hypothesized relationships with forest conditions), given that abiotic factors such as precipitation are largely static and not alterable within a management context. Humboldt marten locations were positively associated with increased shrub cover (salal (<em>Gautheria shallon</em>)), mast producing trees (e.g., tanoak, <em>Notholithocarpus densiflorus</em>), increased pine (<em>Pinus </em>sp.) proportion of total basal area, annual precipitation at home-range spatial scales, low and high amounts of canopy cover and slope, and cooler August temperatures. Unlike other recent literature, we found little evidence that Humboldt martens were associated with old-growth structural indices. This case study provides an example of how limited information on rare or lesser-known species can lead to differing interpretations, emphasizing the need for study-level replication in ecology. Humboldt marten conservation would benefit from continued survey effort to clarify range extent, population sizes, and fine-scale habitat use. <br> </p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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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.