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.
261
datasets available to search
ShareScore release 0.9.0
Dataset results
261 results for “hypothesis testing”
Fig. 12 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 12. Satellite transmission history of a large subadult (78.6 cm SCLmin) Chelonia mydas from Bermuda. Argos locations displayed are the highest location class per day, selected from the hybrid output of the Douglas Argos filter algorithm. This output includes points passing the minimum redundant distance filter supplemented with points passing the distance angle rate filter during periods of migration.
Fig. 5 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 5. Size composition of Chelonia mydas in Bermuda. A, All turtles captured with an entrapment net from 1968–2005 (excludes recaptures). B, A subsample of C. mydas from Bermuda for which sex and maturity status were determined using laparoscopy; all animals were immature. C, Size distribution of 141 C. mydas that stranded in Bermuda between 1992 and 2005. D, Size (SCLmin) at last capture versus time in years to foreign recapture of 53 C. mydas tagged in Bermuda. Minimum adult size, indicated by the dashed line, is based on laparoscopy of 178 C. mydas in Bocas del Toro, Panama (this study; Meylan and Meylan, unpubl. data).
Fig. 11 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 11. Geographic distribution of 88 foreign tag returns (numbers in circles) through 2005 of Chelonia mydas originally tagged in Bermuda. The star indicates the only known nesting by a C. mydas tagged in Bermuda. This turtle was tagged in November 1992 and nested near Cancun, Mexico, during the summer of 2006.
Fig. 4 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 4. Study site at Zapatilla Cays, Bocas del Toro Province, Panama. Solid circles indicate sites sampled with nets between 1990 and 2005. Point O' Reef, Peachy, and Comfort are in the Caribbean Sea and were fished with ''ocean sets.'' All remaining sites are within Chiriqui Lagoon and were fished with standard set nets (see Methods).
Fig. 6 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 6. Carapace length (SCLmin), weight, and maturity status for 131 Chelonia mydas from Bermuda that were examined laparoscopically. Minimum adult size, indicated by the dashed line, is based on laparoscopy of 178 C. mydas in Bocas del Toro, Panama (this study; Meylan and Meylan, unpubl. data). For explanation of stages, see Methods.
Fig. 10 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 10. Satellite transmission histories of four large subadult Chelonia mydas from Bermuda. Argos locations displayed are the minimum redundant distance (MRD) output of the Douglas Argos filter algorithm. This output includes points that have a consecutive or near-consecutive neighbor within 6 km. Adaptive kernel density percent volume contours, calculated from the MRD dataset, are also displayed. A, Locations (n 5 103) and volume contours for PTT 07665 (70.4 cm SCLmin). B, Locations (n 5 103) and volume contours for PTT 11676 (72.0 cm SCLmin). C, Locations (n 5 141) and volume contours for PTT 11677 (71.8 cm SCLmin). D, Locations (n 5 253) and volume contours for PTT 60810 (70.0 cm SCLmin).
Fig. 7 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 7. Average number of Chelonia mydas caught per set of the entrapment net at Bermuda by month. Mean and one standard deviation are shown for all sets from January 1992–August 2005. Sample size above each bar is for the number of sets made during each month.
Fig. 8 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis
Fig. 8. The number of Chelonia mydas caught at Bermuda per set of the entrapment net as a function of water temperature. Data shown are for 258 samples from January 1992–August 2005.
Fig. 8 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 8. Cladogram of traditionally accepted phylogenetic relationships among Loricariidae subfamilies (modified from de Pinna, 1988: 304), showing the phylogenetic position of the studied loricariid species, an example of ecomorphological adaptive divergence in the studied riffles. According to Armbruster (2004), Ancistrinae is currently considered a distinct tribe within Hypostominae.
Fig. 7 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 7. Imparfinis minutus specimen sheltering itself from current among rocks in the riffles bottom, during daytime (photo: Ricardo M.C. Castro).
Fig. 5 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 5. Characidium zebra specimen using its expanded and horizontally orientated paired fins to hold its position against the current in the riffles substrate, during daytime (photo: Ricardo M.C. Castro).
Fig. 4 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 4. Cladogram of phylogenetic relationships among selected characiform fishes (modified from Buckup, 1998: 134), showing the phylogenetic position of the studied Characidiinae and Parodontidae species, an example of ecomorphological adaptive convergence in the studied riffles.
Fig. 3 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 3. Dendrogram of ecomorphological relationships of the 14 resident fish species in the upper rio São Francisco studied riffles, southeastern Brazil.
Fig. 2 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 2. Projection of the two first principal components of the 14 resident fish species in the upper rio São Francisco studied riffles, southeastern Brazil: Astriv, Astyanax rivularis; Brystr, Bryconamericus stramineus; Brysp, Bryconamericus sp.; Chafas, Characidium fasciatum; Chazeb, Characidium zebra; Apaibi, Apareiodon ibitiensis; Parhil, Parodon hilarii; Cetihe, Cetopsorhamdia iheringi; Impmin, Imparfinis minutus; Rhaque, Rhamdia quelen; Trisp, Trichomycterus sp.; Hissp, Hisonotus sp.; Hypgar, Hypostomus garmani; Harsp, Harttia sp.
Fig. 1 in Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Fig. 1. General view of the studied riffle stretch (20º30'S 46º50'W) in the upper rio São Francisco, southeastern Brazil (photo: Ricardo M.C. Castro).
Testing the chilling: Before drought-tolerance hypothesis in Pooideae grasses
<p>Temperate Pooideae are a large clade of economically important grasses distributed in some of the Earth's coldest and driest terrestrial environments. Previous studies have inferred that Pooideae diversified from their tropical ancestors in a cold montane habitat, suggesting that above-freezing cold (chilling) tolerance evolved early in the subfamily. By contrast, drought tolerance is hypothesized to have evolved multiple times independently in response to global aridification that occurred after the split of Pooideae tribes. To independently test predictions of the chilling before-drought hypothesis in Pooideae, we assessed the conservation of whole plant and gene expression traits in response to chilling versus drought. We demonstrated that both trait responses are more similar across tribes in cold as compared to drought, suggesting that chilling responses evolved before, and drought responses after, tribe diversification. Moreover, we found significantly more overlap between drought and chilling-responsive genes within a species than between drought-responsive genes across species, providing evidence that chilling tolerance genes acted as precursors for the novel acquisition of increased drought tolerance multiple times independently, partially through the cooption of chilling responsive genes.</p>
Testing the chilling: Before drought-tolerance hypothesis in Pooideae grasses
Open the record for dataset details and reuse information.
An experimental test of the Growth Rate Hypothesis as a predictive framework for microevolutionary adaptation
Open the record for dataset details and reuse information.
Data from: Testing the greater male variability hypothesis: male mountain chickadees exhibit larger variation in reversal learning compared to females
The 'greater male variability hypothesis' predicts that males exhibit larger ranges of variation in cognitive performance compared to females, however, support for this hypothesis has come exclusively from studies of humans. This scenario aligns with the fact that the vast majority of the literature assessing sex differences in cognition is based on studies of humans and a few other mammals. In order to elucidate the underpinnings of cognitive variation and the potential for fitness consequences, we must investigate sex differences in cognition in non-mammalian systems as well. Here we assess the performance of male and female food-caching birds on a spatial learning and memory task and a reversal spatial task to address whether there are sex differences in mean cognitive performance or in the range of variation in performance. For both tasks, male and female mean performance was similar across four years of testing; however, males did exhibit a wider range of variation in performance on the reversal spatial task compared to females. The implications for mate choice and sexual selection of cognitive abilities are discussed, with a call for further investigation into sex-related cognitive variation.
Data from: Life-history theory provides a framework for detecting resource limitation: a test of the Nutritional Buffer Hypothesis
<p>For ungulates and other long-lived species, life-history theory predicts that nutritional reserves are allocated to reproduction in a state-dependent manner because survival is highly conserved. Further, as per-capita food abundance and nutritional reserves decline (i.e., density-dependence intensifies), reproduction and recruitment become increasingly sensitive to weather. Thus, the degree to which weather influences vital rates should be associated with proximity to nutritional carrying capacity—a notion that we refer to as the Nutritional Buffer Hypothesis. We tested the Nutritional Buffer Hypothesis using six moose (<i>Alces alces</i>) populations that varied in calf recruitment (33-69 calves/ 100 cows). We predicted that populations with high calf recruitment were nutritionally buffered against the effects of unfavorable weather, and thus were below nutritional carrying capacity. We applied a suite of tools to quantify habitat and nutritional condition of each population and found that increased browse condition, forage quality, and body fat were associated with increased pregnancy and calf recruitment, thereby providing multiple lines of evidence that declines in calf recruitment were underpinned by resource limitation. From 2001 to 2015, recruitment was more sensitive to interannual variation in weather (e.g., winter severity, drought) and plant phenology (e.g., duration of spring) for populations with reduced browse condition, forage quality, and body fat, suggesting these populations lacked the nutritional reserves necessary to buffer demographic performance against the effects of unfavorable weather. Further, average within-population calf recruitment was determined by regional climatic variation, suggesting that the pattern of reduced recruitment near the southern range boundary of moose stems from an interaction between climate and resource limitation. When coupled with information on habitat, nutrition, weather, and climate, life-history theory provides a framework to estimate nutritional limitation, proximity to nutritional carrying capacity, and impacts of climate change for ungulates.</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.