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.
114
datasets available to search
ShareScore release 0.9.0
Dataset results
114 results for “Body Length”
Рис. 3. Возрастная Δинамика относитеΛьных приростов ΔΛины (А) и массы теΛа (А) бурого морского петушка Alectrias alectrolophus из разных районов Тауйской губы Охотского моря Fig. 3. Age-related dynamics of relative gains in length (A) and body weight (A) of stone cockscomb Alectrias alectrolophus from different regions of Taui Bay, the Sea of Okhotsk in Size-age structure, growth, and feeding of stone cockscomb Alectrias alectrolophus (Stichaeidae) from different areas of Taui Bay, the Sea of Okhotsk
Рис. 3. Возрастная Δинамика относитеΛьных приростов ΔΛины (А) и массы теΛа (А) бурого морского петушка Alectrias alectrolophus из разных районов Тауйской губы Охотского моря Fig. 3. Age-related dynamics of relative gains in length (A) and body weight (A) of stone cockscomb Alectrias alectrolophus from different regions of Taui Bay, the Sea of Okhotsk
Figure 3 in Seasonal variations in body length and fecundity of 2 copepod species: Thermocyclops crassus (Fischer, 1853) and Eudiaptomus drieschi (Poppe & Mrázek, 1895
Figure 3. Monthly variations in mean egg numbers and lengths of females and males of 2 copepod species in Lake Yenişehir during the study period (broken lines show that no E. drieschi was found in this period).
Figure 2 in Seasonal variations in body length and fecundity of 2 copepod species: Thermocyclops crassus (Fischer, 1853) and Eudiaptomus drieschi (Poppe & Mrázek, 1895
Figure 2. Monthly variations of temperature, phosphate, nitrate, dissolved oxygen, and chlorophyll-a during the study in Lake Yenişehir, from May 2003 to June 2004 (±SD).
Body Length Data for North American Syrphidae & Tabanidae
<p>Body size data for North American Syrphidae & Tabanidae extracted from The Insects and Arachnids of Canada:</p> <p>Vockeroth, J.R., 1992. The insects and arachnids of Canada, Part 18. The flower flies of the subfamily Syrphinae of Canada, Alaska, and Greenland: Diptera: Syrphidae. Research Branch Agriculture Canada Publication 1867: 1-456. </p> <p>Teskey, H.J., 1990. The insects and arachnids of Canada, Part 16. The horse flies and deer flies of Canada and Alaska: Diptera: Tabanidae. Research Branch Agriculture Canada Publication 1838: 1-381.</p>
Body Length Data for North American Beetles
<p><a href="http://purl.obolibrary.org/obo/CMO_0000013">Body length</a> data for North American beetles extracted from The Insects and Arachnids of Canada:</p> <p>Anderson, R.S., Peck, S.B., 1985. The insects and arachnids of Canada, Part 13. The Carrion Beetles of Canada and Alaska: Coleoptera: Silphidae and Agyrtidae. Research Branch Agriculture Canada Publication 1778: 1-121.</p> <p>Bright, D.E., 1976. The insects and arachnids of Canada, Part 2. The bark beetles of Canada and Alaska: Coleoptera: Scolytidae. Research Branch Agriculture Canada Publication 1576: 1-241. </p> <p>Bright, D.E., 1987. The insects and arachnids of Canada, Part 15. The Metallic Wood-boring Beetles of Canada and Alaska. Coleoptera: Buprestidae. Research Branch Agriculture Canada Publication 1810: 1-335.</p> <p>Bright, D.E., 1993. The insects and arachnids of Canada, Part 21. The Weevils of Canada and Alaska: Volume 1. Coleoptera: Curculionoidea, excluding Scolytidae and Curculionidae. Research Branch Agriculture Canada Publication 1882: 1-217.</p>
FIGURE 2 in Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives
FIGURE 2. Comparative view of three fossil thalattosuchian crocodylomorphs: (1) teleosaurid Platysuchus multiscrobiculatus SMNS 9930; (2) basal metriorhynchoid Pelagosaurus typus MTM M62 2516; and (3) metriorhynchid Cricosaurus suevicus SMNS 9808. Scale bars equal 50 cm.
FIGURE 1 in Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives
FIGURE 1. Comparative view of four fossil teleosaurid crocodylomorphs used in the regression analyses: (1) Steneosaurus bollensis GPIT/RE/1193/2; (2) Steneosaurus priscus MNHN.F CNJ 78a; (3) Steneosaurus bollensis MH unnumbered A; and (4) Steneosaurus bollensis MH unnumbered B. Scale bars equal 100 cm.
FIGURE 4 in Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives
FIGURE 4. Comparative least-squares regression gradient plot, of cranial length-to-total length, with the solid line representing Teleosauridae, and the dashed lines representing (1) Crocodylus, (2) Alligator, (3) Gavialis, and (4) Metriorhynchidae, respectively.
FIGURE 5 in Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives
FIGURE 5. Comparative view of estimated body length of large-bodied teleosaurids (see Table 8). (1) Machimosaurus rex (holotype); (2) Machimosaurus hugii (referred specimen from Krebs, 1968); (3) Machimosaurus mosae (neotype, grey silhouette is the lost holotype); (4) Machimosaurus buffetauti (holotype, grey silhouette is the specimen from Buffetaut, 1982b); (5) Steneosaurus edwardsi (referred specimen from Johnson et al., 2015); (6) Steneosaurus obtusidens (holotype); (7) Steneosaurus bollensis (based on MH unnumbered A). The skull drawings are modified from (Fanti et al., 2016 and Young et al., 2014). Scale bar equals 1 m.
FIGURE 3 in Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives
FIGURE 3. Bivariate plots of cranial (1, 3) and femoral lengths (2, 4) plotted against total lengths for complete specimens only (1, 2) and for all specimens (3, 4). In each case a line of least-squares regression is fitted along with a shaded area representing the confidence interval around the regression model.
Figure 5 in Locomotion in terrestrial mammals: the influence of body mass, limb length and bone proportions on speed
Figure 5. Regression plots of anatomical variables to log running speed in km h-1, showing the distinct curvilinearity of some of the samples, in this case, log forelimb length in mm (a) and olecranon process/radius ratio (b). The polynomial regression model yielded a significantly better fit to the data than ordinary least squares regression lines. For equation see Table 5.
Figure 1. Phylogenetic relationships between the 76 in Locomotion in terrestrial mammals: the influence of body mass, limb length and bone proportions on speed
Figure 1. Phylogenetic relationships between the 76 species of mammals used in the study. Numbers adjacent to the nodes refer to split ages in units of millions of years. Total height of tree is 85 million years. Literature sources used in constructing the tree are Kielan-Jaworowska et al. (1979), Bennett (1980), Janis (1982), Savage & Russel (1983), Lanave et al. (1985), Shoshani (1986), Janis & Scott (1987), Wayne & O'Brien (1987), Gentry & Hooker (1988), Flynn et al. (1988), Novacek et al. (1988), Padmadisastra (1988), Prothero et al. (1988), Tassy & Shoshani (1988), Georgiadis et al. (1990), Marshall (1990), Miyamoto et al. (1990), Nowak (1991), Geffen et al. (1992), Novacek (1992a,b), Garland & Janis (1993), Wyss & Flynn (1993), Flynn (1996), Hunt (1996), Foote et al. (1999) and Penny et al. (1999).
Figure 3 in Locomotion in terrestrial mammals: the influence of body mass, limb length and bone proportions on speed
Figure 3. Regression plots of independent contrasts for fore limb parameters. Log running speed is in km h-1. a, Fore limb length in mm/3÷body mass in kg; b, radius/humerus ratio; c, metacarpus/humerus ratio; d, olecranon process length in mm/ 3÷body mass in kg. Regression lines fitted to the contrasts by means of least squares (model I) analysis.
Figure 4 in Locomotion in terrestrial mammals: the influence of body mass, limb length and bone proportions on speed
Figure 4. Regression plots of independent contrasts for hind limb parameters. Log running speed is in km h-1. a, Hind limb length in mm/3÷body mass in kg; b, metatarsus/femur ratio; c, cnemial crest height in mm/3÷body mass in kg; d, calcaneal tuber length in mm/3÷body mass in kg. Regression lines fitted to the contrasts by means of least squares (model I) analysis.
Figure 2 in Locomotion in terrestrial mammals: the influence of body mass, limb length and bone proportions on speed
Figure 2. Plots of standardized contrasts to their standard deviations. a, log forelimb length in mm; b, radius/humerus ratio; c, metacarpus/humerus ratio; d, tibia/femur ratio; e, cnemial crest height in mm/3÷body mass in kilograms; f, calcaneal tuber/metatarsus ratio.
Effects of population density on static allometry between horn length and body mass in mountain ungulates
<p class="MsoNoSpacing">Little is known about the effects of environmental variation on allometric relationships of condition-dependent traits, especially in wild populations. We estimated sex-specific static allometry between horn length and body mass in four populations of mountain ungulates that experienced periods of contrasting density over the course of the study. These species displayed contrasting sexual dimorphism in horn size; high dimorphism in <i>Capra ibex</i> and <i>Ovis canadensis</i> and low dimorphism in <i>Rupicapra rupicapra</i> and <i>Oreamnos americanus</i>. The effects of density on static allometric slopes were weak and inconsistent while allometric intercepts were generally lower at high density, especially in males from species with high sexual dimorphism in horn length. These results confirm that static allometric slopes are more canalized than allometric intercepts against environmental variation induced by changes in population density, particularly when traits appear more costly to produce and maintain.</p>
Arthropod food webs predicted from body length ratios are improved by incorporating prey defensive properties
<p>This dataset was used to run for Van de Walle et al. (2023). Arthropod food webs predicted from body length ratios are improved by incorporating prey defensive properties. Journal of Animal Ecology, 92(4), 913-924. <a href="https://doi.org/10.1111/1365-2656.13905">https://doi.org/10.1111/1365-2656.13905</a></p> <p>"Arthropod_feeding_trials.csv" contains the results of the experimental feeding trials. Each row contains information on species taxonomy, body size and hunting strategy within a single trial.</p> <p><strong>Abstract</strong></p> <p>Trophic interactions are often deduced from body size differences between predators and potential prey, assuming predators prefer prey smaller than themselves because larger prey are more difficult to subdue. This hypothesis has mainly been confirmed in aquatic ecosystems, but rarely in terrestrial ecosystems, especially in arthropods. Our goal was to validate whether body size ratios can accurately predict trophic interactions in a terrestrial, plant-associated arthropod community. Additionally, we tested whether predator hunting strategy and prey taxonomy could explain possible deviations from this general rule.</p> <p>We collected arthropods from marram grass in coastal dunes and conducted pairwise feeding trials to explicitly test whether two individuals, of the same or different species, would predate each other. From the trial results, we constructed one of the most complete, empirically derived food webs for terrestrial arthropods associated with a single plant species. We contrasted this empirical food web with a theoretical web based on body size ratios, literature and expert knowledge.</p> <p>In our feeding trials, predator-prey interactions were indeed largely size-based. Moreover, the theoretical food web based on body size, activity period, microhabitat and expert knowledge converged quite well with the food web based on experimental feeding trials for both predator and prey species. However, predator hunting strategy, but mainly prey taxonomy improved predictions of predation events. Well-defended taxa, such as hard-bodied beetles, were less frequently consumed than expected based on their body size.</p> <p>Body size ratios predict trophic interactions among plant-associated arthropods fairly well. However, traits such as hunting strategy and anti-predator defences can explain why certain trophic interactions do not adhere to size-based rules. Feeding trials can generate insights into multiple traits underlying real-life trophic interactions among arthropods. Such insights are much needed as the dramatic global decline in arthropod species richness and abundance is knocking out many trophic interactions on which services such as pest control and nutrient cycling depend.</p>
Long-term increases in wing length occur independently of changes in climate and climate-driven shifts in body size
Open the record for dataset details and reuse information.
Effects of population density on static allometry between horn length and body mass in mountain ungulates
Open the record for dataset details and reuse information.
Variation in the ontogenetic allometry of horn length in bovids along a body mass continuum
<p><span><span><span><span><span><span><span><span><span><span><span>Allometric relationships describe the proportional covariation between morphological, physiological, or life history traits and the size of the organisms. Evolutionary allometries estimated among species are expected to result from species differences in ontogenetic allometry, but it remains uncertain whether ontogenetic allometric parameters and particularly the ontogenetic slope can evolve. In bovids, the non-linear evolutionary allometry between horn length and body mass in males suggests systematic changes in ontogenetic allometry with increasing species body mass. To test this hypothesis, we estimated ontogenetic allometry between horn length and body mass in males and females of 19 bovid species ranging from ca. 5 to 700 kg. Ontogenetic allometry changed systematically with species body mass from steep ontogenetic allometries over a short period of horn growth in small species to shallow allometry with the growth period of horns matching the period of body mass increase in the largest species. Intermediate species displayed steep allometry over long period of horn growth. Females tended to display shallower ontogenetic allometry with longer horn growth compared to males, but these differences were weak and highly variable. These findings show that ontogenetic allometric slope evolved across species possibly as a response to size-related changes in the selection pressures acting on horn length and body mass.</span></span></span></span></span></span></span></span></span></span></span></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.