Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
29
datasets available to search
ShareScore release 0.9.0
Dataset results
29 results for “skull size”
Primary data on skull and brain morphology for: Geographical patterns in seasonal changes of body mass, skull, and brain size of common shrews
<p class="Standard">Some small mammals exhibit Dehnel's Phenomenon, a drastic decrease in body mass, braincase and brain size from summer to winter, followed by regrowth in spring. This is accompanied by a reorganization of the brain and changes in other organs. The evolutionary link between these changes and seasonality remains unclear, although the intensity of change varies between locations as the phenomenon is thought to lead to energy savings during winter.</p> <p class="Standard">Here we explored geographic variation of the intensity of Dehnel's Phenomenon in <i>Sorex araneus.</i> We compiled literature on seasonal changes in braincase size, brain and body mass, supplemented by our own data from Poland, Germany, and the Czech Republic.</p> <p class="Standard">We analysed the effect of geographic and climate variables on the intensity of change and patterns of brain reorganization.</p> <p class="Standard">From summer to winter the braincase height decreased by 13%, followed by 10% regrowth in spring.</p> <p class="Standard">For body mass the changes were -21%/+82%, respectively. Changes increased towards northeast. Several climate variables were correlated with these transformations, confirming a link of the intensity of the changes with environmental conditions. This relationship differed for the decrease vs. regrowth, suggesting that they may have evolved under different selective pressures.</p> <p class="Standard">We found no geographic trends explaining variability in the brain mass changes although they were similar (-21%/+10%) to those of the braincase size. Underlying patterns of change in brain organisation in north-eastern Poland were almost identical to the pattern observed in southern Germany. This indicates that local habitat characteristics may play a more important role in determining brain structure than broad scale geographic conditions.</p> <p>We discuss the techniques and criteria used for studying this phenomenon, as well as its potential presence in other taxa and the importance of distinguishing it from other kinds of seasonal variation.</p>
Fig. 1 in Differences In Skull Size Of Harbour Porpoises, Phocoena Phocoena (Cetacea), In The Sea Of Azov And The Black Sea: Evidence For Different Morphotypes And Populations
Fig. 1. Cranial measurements of the harbour porpoises (Phocoena phocoena): 1 — dorsal view; 2 — ventrolateral view; 3 — posterior view.
Geographic locations of presence points and the size of 14 skull measurements
<p>The phylogeny and species boundaries of <i>Gazella subgutturosa</i> and <i>G. marica</i> have been long debated. The achievements of past conservation efforts have been compromised by a lack of knowledge about the phylogeny and taxonomic status of different populations. We integrated the recent genetic findings by previous studies with morphometric analyses and ecological niche modelling (ENM) to assess discreteness among populations of these gazelle species in Asia. Taxonomic diversity of gazelles was investigated by using principal components analysis (PCA) based on 14 cranial measures of male skulls. Ecological niche divergence was examined based on a PCA on climatic factors and a species distribution modelling (SDM) with environmental variables. Morphometric results indicated substantial differentiation in size between skulls of the western Zagros Mountains including west and south-western Iran and Arabian Peninsula from all other samples east of the Zagros Mountains from Iran to China. ENM also revealed that gazelles in the east and west of Zagros Mountains occupy distinct niches and that there are apparent areas of disconnection across the goitered gazelle suitable range. A complete divergent niche occupation was also observed between gazelles of Mongolia and other Asiatic gazelles, except for China. Taking the inferences from ENM and morphology together with previous genetics results, we conclude that gazelles in the west and southwest of Iran may represent <i>G. marica</i>. Also, our combined analyses revealed divergence among gazelles of Iran, Central Asia, and Mongolia/China. These results may pave the way for future studies and have conservation implications particularly for reintroduction/supplementation programs.</p>
Data from: Size variation, growth strategies and the evolution of modularity in the mammalian skull
Open the record for dataset details and reuse information.
Geographic locations of presence points and the size of 14 skull measurements
Open the record for dataset details and reuse information.
Primary data on skull and brain morphology for: Geographical patterns in seasonal changes of body mass, skull, and brain size of common shrews
Open the record for dataset details and reuse information.
Raw landmarks related to the paper, "Evolution under intensive industrial breeding: skull size and shape comparison between historic and modern pig lineages'
<p>Raw coordinates (p x k = 82 x 3) of domestic and wild pig skulls that form the dataset for the paper, "­Evolution under intensive industrial breeding: skull size and shape comparison between historic and modern pig lineages </p>
Figure 4. Cranium shape changes between B. bufo and B in Interspecific and intraspecific size and shape variation in skull of two closely related species Bufo bufo (Linnaeus, 1758) and Bufo verrucosissimus (Pallas, 1814) from Turkey
Figure 4. Cranium shape changes between B. bufo and B. verrucosissimus.
Figure 1 in An extremely large saber-tooth cat skull from Uruguay (late Pleistocene -early Holocene, Dolores Formation): body size and paleobiological implications
Figure 1. Map of Uruguay showing the approximate geographic location where the Smilodon populator skull (MNHN-P 957) was found (black triangle): Limetas Creek (Department of Colonia), Dolores Formation.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.