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.
103
datasets available to search
ShareScore release 0.7.1
Dataset results
103 results for “bite force”
A bite force database of 654 insect species
<p>The insect bite force database as described in Rühr et al. (<strong>accepted</strong>): A bite force database for 654 insect species. doi: <a href="https://doi.org/10.1038/s41597-023-02731-w">1038/s41597-023-02731-w</a>.</p><p>The code used to convert the raw measurements to the final database and to create all tables and figures of the original publication can be found on its <a href="https://github.com/Peter-T-Ruehr/InsectBiteForceDatabase">GitHub Page</a> (under release <a href="https://github.com/Peter-T-Ruehr/InsectBiteForceDatabase/releases/tag/v1.0.0">v1.0.0</a>).</p>
Data from: Proximate and ultimate drivers of variation in bite force in the insular lizards Podarcis melisellensis and Podarcis sicula
<p>Bite force is a key performance trait in lizards since biting is involved in many ecologically relevant tasks, including foraging, fighting, and mating. Several factors have been previously suggested to impact bite force in lizards, such as head morphology (proximate factors), or diet, intraspecific competition, and habitat characteristics (ultimate factors). However, these have been generally investigated separately and mostly at the interspecific level. We tested which factors drive variation in bite force at the population level and to what extent. Our study includes 20 populations of two closely-related lacertid species, <i>Podarcis melisellensis </i>and <i>Podarcis sicula</i>, which inhabit islands in the Adriatic. We found that lizards with more forceful bites have relatively wider and taller heads, and consume more hard prey and plant material. Island isolation correlates with bite force, likely by driving the resource availability. Bite force is only poorly explained by proxies of intraspecific competition. The linear distance from a large island and the proportion of difficult-to-reduce food items consumed are the ultimate factors that explain most of the variation in bite force. Our findings suggest that the way in which morphological variation affects bite force is species-specific, likely reflecting the different selective pressures operating on the two species.</p>
Cranial muscle reconstructions quantify adaptation for high bite forces in Oviraptorosauria
<p>This dataset contains 3D models, data, and python scripts for the cranial and mandibular retrodeformations of oviraptorosaurian theropod species <em>Incisivosaurus gautheri</em>, <em>Citipati osmolskae</em>, <em>Khaan mckennai</em>, and <em>Conchoraptor gracilis (</em>along with reconstructed cranial musculature and gape analyses) supporting the paper ‘Cranial muscle reconstructions quantify adaptation for high bite forces in Oviraptorosauria' published in Scientific Reports (<a href="https://www.nature.com/articles/s41598-022-06910-4">Cranial muscle reconstructions quantify adaptation for high bite forces in Oviraptorosauria | Scientific Reports (nature.com)</a>.</p> <p>A single ZIP compressed folder contains two Blender (<a href="https://www.blender.org/">https://www.blender.org/</a>) .blend files for each species. The Blender files named '[Genus]_cranial_muscles.blend' contain the cranial and mandibular retrodeformed models and final volumetric muscle reconstructions (along with the curve muscle origin-insertion paths and shrinkwrapped curves the final muscle volumes were derived from). The Blender files named '[Genus]_gape_analysis.blend' contain the cranial and mandibular retrodeformed models and the muscle origin-insertion cylinder connections (attached to an animated armature) used to estimate optimal and maximum gape angle. The .txt files named '[Genus]_gape_script.txt' are python scripts used to run the gape analyses for each species. The .txt files names '[Genus]_strain_values.txt' are the output strain values of each muscle cylinder during the gape analyses for each species. [Unzipped total size 1.74GB].</p>
Figure 2 in Comparative bite forces and canine bending strength in feline and sabretooth felids: implications for predatory ecology
Figure 2. Scatter plot figures of Log10 body mass (BM in kg) plotted against (A) Log10 bite force (in N) at the canines and (B) Log10 bite force (N) at the carnassial paracone. Symbols:, extant felids; O, Homotherium (crenatidens, latidens, serum); –, Machairodus aphanistus; +, Machairodus giganteus; O, Megantereon (cultridens, sp.); Z, Smilodon fatalis;
Figure 1 in Comparative bite forces and canine bending strength in feline and sabretooth felids: implications for predatory ecology
Figure 1. Skulls of sabrecat Smilodon populator in (A) lateral, (C) ventral, and (E) posterodorsal views, and of lion (Panthera leo) in (B) lateral, (D) ventral, and (F) posterodorsal views, to scale. Shaded areas in (C) and (D) represent the reconstructed cross-sectional area of the masseter–pterygoideus muscle groups, and in (E) and (F) represent the temporalis. The resultant force vector of the masseter–pterygoideus (M) acts through the centroid (white circle in C and D) with an inlever moment arm Im about the temporomandibular joint, and the resultant force vector of the temporalis (T) acts through the centroid (black circle in A and B, white circle in E and F) with an inlever moment arm (It) about the temporomandibular joint.
Figure 3 in Comparative bite forces and canine bending strength in feline and sabretooth felids: implications for predatory ecology
Figure 3. Scatter plots of (A) Log10 body mass (BM in kg) to Log10 canine strength for bending about the lateromedial plane [extant felids: n = 11; Log10(SAP) = −0.850 ± 0.202 + Log10(BM) 0.944 ± 0.125; r = 0.985; F = 289.132; P << 0.001]; (B) Log10 BM (kg) to Log10 canine strength for bending about the anteroposterior plane [Log10(SLM) = −0.750 ± 0.155 + Log10(BM) 0.958 ± 0.096; r = 0.991; F = 503.168; P << 0.001]; (C) Log10 bite force at canine (BF in N) to Log10 canine strength for bending about the lateromedial plane [Log10(SAP) = −2.659 ± 0.756 + Log10(BF) 1.245 ± 0.156; r = 0.987; F = 327.704; P << 0.001]; (D) Log10 BF at canine (N) to Log10 canine strength for bending about the anteroposterior plane [Log10(SLM) = −2.579 ± 0.340 + Log10(BF) 1.260 ± 0.128; r = 0.991; F = 495.725; P << 0.001]. Symbols: Δ, Metailurus major; v, Metailurus parvulus. Other symbols are the same as in Figure 2.
Figure 7 in Feeding behaviour and bite force of sabretoothed predators
Figure 7. Mandibular force profiles of scimitar-toothed nimravids. Values are presented for the canine, P3P4, and post-M1 interdental gaps. Zx/L-values at the canine are lower than those at post-M1, suggesting shallower bites than dirk-toothed nimravids. No increase in dorsoventral buttressing occurs in the vicinity of the cheek teeth, indicating that the mandibular ramus is adapted for slicing meat exclusively. The Zx/Zycanine values of scimitar-toothed nimravids, to the exception of Nimravus brachyops, are much higher than those of extant felids, suggesting that prey was restrained prior to the sabre bite. The Zx/Zycanine values of N. brachyops are relatively lower, being similar to those of the extant felid Neofelis nebulosa.
Figure 12 in Feeding behaviour and bite force of sabretoothed predators
Figure 12. Summary diagram of dirk-toothed ecomorphs. Zx/L-values at the canine are generally higher than those behind the carnassial, while Zy/L-values at the canine are higher than at P3P4 but lower than at the carnassial. The Zx/Zycanine values are much higher than those of extant felids and generally higher than those of scimitar-toothed ecomorphs. These results indicate that dirk-toothed ecomorphs delivered powerful sabre bites on well-restrained prey.
Figure 2 in Feeding behaviour and bite force of sabretoothed predators
Figure 2. Cross-section of a hypothetical mandible demonstrating dimensions measured and orientation of crosssectional properties evaluated.
Figure 5. A in Feeding behaviour and bite force of sabretoothed predators
Figure 5. A, mandibular force profiles of machaeroidines. Values are presented for the canine, P3P4, and M1M2 interdental gaps. Zx/L-values at the canine are higher than those at M 1M2, suggesting a powerful canine killing bite. B, comparison of bending strengths (section moduli Zx and Zy) in Machaeroides eothen and M. simpsoni. The missing segments of M. eothen (USNM 361372) and M. simpsoni are reconstructed on the basis of M. eothen (USNM 17059). The symphyseal region of all specimens is much stronger than the ramus. The Zx/Zycanine values of machaeroidines are similar to those of felids with special killing techniques.
Figure 3 in Feeding behaviour and bite force of sabretoothed predators
Figure 3. Measurements taken on sabretooth mandibles. Mandibular depth, width, and distance from the articulation were measured at the following interdental gaps: canine and P3P4 through post-M1 in all taxa, and additional measurements were made at P2P3 and M2M3 through post- M4 in Thylacosmilus. Measurements were made perpendicular to the central axis of the mandible. In this research, the term 'ramus' refers to the portion of the hemimandible posterior to the symphysis.
Figure 13. A in Feeding behaviour and bite force of sabretoothed predators
Figure 13. A, summary diagram of scimitar-toothed ecomorphs. Zx/L and Zy/L-values at the canine are higher than at P3P4 but lower than at the carnassial. The Zx/Zycanine values are much higher than those of extant felids but generally lower than those of dirk-toothed ecomorphs. These results indicate that scimitar-toothed ecomorphs delivered shallow bites while pursuing prey and delivered sabre bites once prey had fallen and had been restrained. B, comparison of Neofelis nebulosa with 'intermediate' sabretooths Nimravus brachyops, Machaeroides eothen and Apataelurus kayi. Despite differences in dorsoventral and labiolingual force profiles, these taxa are characterized by Zx/Zycanine values lower than full-fledged sabretooths but similar to those of extant felids with specialized killing techniques. These results indicate that the 'intermediate' sabretooths delivered sabre bites on restrained prey, but one that was not as well restrained as in full-fledged sabretooths.
Figure 1 in Feeding behaviour and bite force of sabretoothed predators
Figure 1. Phylogeny and temporal range of sabretooth genera studied. Ischyrosmilus gracilis (sensu Churcher, 1984) is included in the Smilodon lineage (probably equivalent to S. gracilis). Although this taxon was not studied, Megantereon is presented to complete the Smilodontini tribe. Based on Goin & Pascual (1987), Bryant (1996b), Turner & Antón (1997), Gunnell (1998), Peigné (2003), and Morlo et al. (2004).
Figure 11 in Feeding behaviour and bite force of sabretoothed predators
Figure 11. Mandibular force profiles of thylacosmilines. Values are presented for the canine, P3P4, M1M2, and post-M4 interdental gaps. Zx/L-values at the canine are higher than those at post-M4, suggesting a powerful canine killing bite. No increase in dorsoventral buttressing occurs in the vicinity of the cheek teeth, indicating that the mandibular ramus is adapted for slicing meat exclusively. The Zx/Zycanine values are much higher than those of extant felids, suggesting that prey was restrained prior to the sabre bite. The higher Zx/Zycanine values of the juvenile relative to the adult are reminiscent of the situation observed in juvenile Panthera leo. Consequently, it is possible that young thylacosmilines underwent an extended period of parental care.
Figure 8 in Feeding behaviour and bite force of sabretoothed predators
Figure 8. Mandibular force profiles of barbourofelids. Values are presented for the canine, P3P4, and post-M1 interdental gaps. Zx/L-values at the canine are subequal or only slightly higher than those at post-M 1, due to the labial rotation of the ramus. No increase in dorsoventral buttressing occurs in the vicinity of the cheek teeth, indicating that the mandibular ramus is adapted for slicing meat exclusively. The Zx/Zycanine values are much higher than those of extant felids, suggesting that prey was restrained prior to the sabre bite.
Data from: Proximate and ultimate drivers of variation in bite force in the insular lizards Podarcis melisellensis and Podarcis sicula
Open the record for dataset details and reuse information.
The bite force-gape relationship as an avenue of biomechanical adaptation to trophic niche in two salmonid fishes
<p>All skeletal muscles produce their largest forces at a single optimal length, losing force when stretched or shortened. In vertebrate feeding systems, this fundamental force-length relationship translates to variation in bite force across gape, which affects the food types that can be eaten effectively. We measured the bite force-gape curves of two sympatric species: king salmon (<em>Oncorhynchus tshawytscha</em>) and pink salmon (<em>O. gorbuscha</em>). Cranial anatomical measurements are not significantly different between species, however, peak bite forces are produced at significantly different gapes. Maximum bite force is achieved at 67% of maximum gape for king salmon and 43% of maximum gape for pink salmon. This may allow king salmon to use greater force when eating large or elusive prey. In contrast, pink salmon do not require high forces at extreme gapes for filter feeding. Our results illustrate that the bite force-gape relationship is an important ecophysiological axis of variation.</p>
A low-cost wireless bite force measurement device - Calibration data
<p>Raw data for a low-cost wireless bite force measurement device calibration. The folder contains the data recorded during 3 different sessions for both the 1D load cell "1D-TAS606" sensor and two accurate 6 axis force transducer "3D-FT Sensors"</p>
Relationship between Channel Island Melospiza melodia (Song Sparrow) bill size and vegetation, seed extraction time, bite force, and climate (2014-2016)
<p>Inferring the environmental selection pressures responsible for phenotypic variation is a challenge in adaptation studies as traits often have multiple functions and are shaped by complex selection regimes. We provide indirect evidence that morphology of the multifunctional avian bill is primarily shaped by climate and thermoregulatory ability in <em>Melospiza melodia</em> (Song Sparrows) on the California Channel Islands. Our research builds on a study in Song Sparrow museum specimens that demonstrated a positive correlation between bill surface area and maximum temperature, suggesting a greater demand for dry heat dissipation in hotter, xeric environments. We sampled contemporary sparrow populations across three climatically distinct islands to test the hypotheses that bill morphology is influenced by habitat differences with functional consequences for foraging efficiency and is related to maximum temperature and, consequently, important for thermoregulation. Measurements of >500 live individuals indicated a significant, positive relationship between maximum temperature and bill surface area when correcting for body size. In contrast, maximum bite force, seed extraction time, and vegetation on breeding territories (a proxy for food resources) were not significantly associated with bill dimensions. While we cannot exclude the influence of foraging ability and diet on bill morphology, our results are consistent with the hypothesis that variation in Song Sparrows' need for thermoregulatory capacity across the northern Channel Islands selects for divergence in bill surface area.</p>
Bite force transmission and mandible shape in grasshoppers, crickets, and allies is not driven by dietary niches
<p>This is the R code and raw data to reproduce the analyses of the manuscript "Bite force transmission and mandible shape in grasshoppers, crickets, and allies is not driven by dietary niches"</p>
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.