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201 results for “Cetaceans”
Ecological impacts of unsustainable sand mining: Urgent lessons learned from a critically endangered freshwater cetacean
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Mapping the diversity of cetacean and primate cultural heritage
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Data from: Basilotritus uheni, a new cetacean (Cetacea, Basilosauridae) from the late Middle Eocene of Eastern Europe
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Data from: Phylogenomic resolution of the cetacean tree of life using target sequence capture
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Data from: Applicability of RAD-tag genotyping for inter-familial comparisons: empirical data from two cetaceans
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Geographic range size, water temperature and extrinsic threats predict the extinction risk in global cetaceans
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7848 alignments with Gblocks of cetaceans
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Data from: Sexual selection targets cetacean pelvic bones
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Data from: Genome-wide association study of an unusual dolphin mortality event reveals candidate genes for susceptibility and resistance to cetacean morbillivirus
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Data from: Resource partitioning facilitates coexistence in sympatric cetaceans in the California Current
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Data from: A risk-based forecast of extreme mortality events in small cetaceans: using stranding data to inform conservation practice
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Index of visual monitoring, location, species behavior, and identification of cetaceans from CalCOFI cruises in the California Current System, 2005-2015 (ongoing).
Field observations are carried out to gain understanding of cetacean ecology and habitat. Visual monitoring for cetaceans has been conducted on quarterly CalCOFI cruises since July 2004 using standard line-transect protocol (Burnham et al. 1980;Buckland et al. 1993; Barlow 1995). Visual observers watch during daylight hours, when weather permits (Beaufort sea states 0 to 5 and visibility greater than 1 nautical mile) and while the ship transits between CalCOFI stations.
Figure 6 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 6 Monthly and lunar phase distribution of recorded cetacean strandings (excluding Megaptera novaeangliae) along the coast of Espírito Santo state, southeast Brazil, from January 1975 to September 2015.
Figure 3 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 3 Geographic distribution of the least frequently stranded cetacean species along the coast of Espírito Santo state, southeast Brazil, from January 1975 to September 2015.
Figure 1 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 1 Physical, biological, and human characteristics of the coast of Espírito Santo state, southeast Brazil. Legend: A, B Location of Espírito Santo and Trindade and Martim Vaz Islands C human population density, major ports, isobaths, sea surface chlorophyll-a concentration, estuaries, and bays in the study area. Data sources: (Centro Internacional de Agricultura Tropical et al. 2005, Becker et al. 2009, NASA Earth Observatory 2019).
Figure 2 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 2 Geographic distribution of the six most frequently stranded cetacean species (excluding Megaptera novaeangliae) along the coast of Espírito Santo state, southeast Brazil, from January 1975 to September 2015. The limits of the Franciscana Management Areas (FMA) are shown in B.
Figure 5 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 5 Annual and latitudinal distribution of recorded cetacean strandings (excluding Megaptera novaeangliae) along the coast of Espírito Santo state, southeast Brazil, from January 1975 to September 2015.
Figure 4 from: Mayorga LFSP, Vanstreels RET, Bhering RCC, Mamede N, Costa LMB, Pinheiro FCF, Reis LWD, Trazzi A, Meirelles WLC, Ribeiro AM, Siciliano S (2020) Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015. ZooKeys 948: 129-152. https://doi.org/10.3897/zookeys.948.50468
Figure 4 Species discovery curve for the number of cetacean species occurring in Espírito Santo waters based on stranding recordings.
Data from: Co-evolution of cerebral and cerebellar expansion in cetaceans
Cetaceans possess brains that rank among the largest to have ever evolved, either in terms of absolute mass or relative to body size. Cetaceans have evolved these huge brains under relatively unique environmental conditions, making them a fascinating case study to investigate the constraints and selection pressures that shape how brains evolve. Indeed, cetaceans have some unusual neuroanatomical features, including a thin but highly folded cerebrum with low cortical neuron density, as well as many structural adaptations associated with acoustic communication. Previous reports also suggest that at least some cetaceans have an expanded cerebellum, a brain structure with wide-ranging functions in adaptive filtering of sensory information, the control of motor actions, and cognition. Here, we report that, relative to the size of the rest of the brain, both the cerebrum and cerebellum are dramatically enlarged in cetaceans and show evidence of co-evolution, a pattern of brain evolution that is convergent with primates. However, we also highlight several branches where cortico-cerebellar co-evolution may be partially decoupled, suggesting these structures can respond to independent selection pressures. Across cetaceans, we find no evidence of a simple linear relationship between either cerebrum and cerebellum size and the complexity of social ecology or acoustic communication, but do find evidence that their expansion may be associated with dietary breadth. In addition, our results suggest that major increases in both cerebrum and cerebellum size occurred early in cetacean evolution, prior to the origin of the major extant clades, and predate the evolution of echolocation.
FIG. 12 in Monstrosities from the Sea. Taxonomy and tradition in Conrad Gessner's (1516-1565) discussion of cetaceans and sea-monsters
FIG. 12. — Satyrus marinus, sea-satyr. Conrad Gessner (1558: 1197). Bayerische Staatsbibliothek München, Rar. 2234.
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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.
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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.