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.
189
datasets available to search
ShareScore release 0.9.0
Dataset results
189 results for “squamation”
Data from: Testing the role of climate in speciation: new methods and applications to squamate reptiles (lizards and snakes)
Climate may play important roles in speciation, such as causing the range fragmentation that underlies allopatric speciation (through niche conservatism) or driving divergence of parapatric populations along climatic gradients (through niche divergence). Here, we developed new methods to test the frequency of climate niche conservatism and divergence in speciation, and applied it to species pairs of squamate reptiles (lizards and snakes). We used a large-scale phylogeny to identify 242 sister-species pairs for analysis. From these, we selected all terrestrial allopatric pairs with sufficient occurrence records (n=49 pairs) and inferred whether each originated via climatic niche conservatism or climatic niche divergence. Among the 242 pairs, allopatric pairs were most common (41.3%), rather than parapatric (19.4%), partially sympatric (17.7%), or fully sympatric species pairs (21.5%). Among the 49 selected allopatric pairs, most appeared to have originated via climatic niche divergence (61–76%, depending on the details of the methods). Surprisingly, we found greater climatic niche divergence between allopatric sister species than between parapatric pairs, even after correcting for geographic distance. We also found that niche divergence did not increase with time, further implicating niche divergence in driving lineage splitting. Overall, our results suggest that climatic niche divergence may often play an important role in allopatric speciation, and the methodology developed here can be used to address the generality of these findings in other organisms.
FIGURE 3. Predorsal squamation pattern. A in A new species of Hypostomus Lacepède, 1803 (Siluriformes: Loricariidae) from the Mearim River basin, northeastern Brazil
FIGURE 3. Predorsal squamation pattern. A. Hypostomus krikati sp. n. (CICCAA 07109) 99.1 mm SL. B. Hypostomus pusarum (CICCAA 07108) 81. 5 mm SL. Red = predosal plate. Green = acessory predorsal plates. Yellow = supraoccipital plate. Blue = pterotic-supracleithrum.
Figure 2 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 2. Plan of Raqefet Cave (a) provenance of the faunal samples, with the different contexts presented in this study labelled in red (b).
Figure 10 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 10. Reconstructed Mean annual precipitation (mm) and temperature for the herpetofauna species identified in Raqefet cave (a, b), Late Natufian EWT (c, d) and for the micro-mammals of Raqefet Cave Locus 1 (e, f). Climatic data from Danin and Orshan (1990). The vertical red line represents the mean annual precipitation and temperature of Ein Hashofet meteorological station for Raqefet and Ein Carmel meteorological station for EWT.
Figure 9 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 9. Results of Principal Components Analysis (components 1 and 2) of the proportional weighted habitat types of the Raqefet Cave herpetofauna assemblages (blue), LN EWT herpetofauna assemblages (red), micro-mammals of Raqefet Cave (green) and modern Mount Carmel herpetofauna (Orange). The most influential habitat types are marked, based on the loading plots (Supplementary Figures 3-4).
Figure 5 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 5. Anura and lizard bones from Raqefet Cave. Bufotes viridis sl (a) presacral vertebra, from left to right, dorsal, anterior and posterior views; Stellagama cf. stellio (b) left maxilla, medial and lateral views; (c) right dentary, medial and lateral views; (d) trunk vertebra, dorsal, ventral, anterior, posterior and lateral views; Eumeces schneiderii (e) right dentary, medial and lateral views; (f) trunk vertebrae, dorsal, ventral, anterior, posterior and lateral views; Pseudopus apodus (g) left maxilla, medial and lateral views (h) left dentary, medial and lateral views; (i) trunk vertebra, dorsal, ventral, anterior, posterior and lateral views.
Figure 1 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 1. (a) Location map (satellite image) showing the studied area; (b) Topographic map of the studied area, Mount Carmel and its surrounding. Meteorological stations marked by +.
Figure 4 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 4. Composite phytogeographical map of Israel, with the location of Raqefet Cave marked by a white X. Ecological units are shown in colour (Data from Israel Nature and Parks Authority; see map legend). Geographic zones after Danin and Orshan (1990): (a) Coastal Galilee. (b) Acco Plain. (c) Carmel Coast. (d) Sharon Plain. (e) Philistine Plain. (f) Upper Galilee. (g) Lower Galilee. (h) Mount Carmel. (i) Esdraelon Plain. (j) Samaria. (k) Shefela. (l) Judean Mountains. (m) Northern Negev. (n) Western Negev. (o) Negev Highlands. (p) Southern Negev. (q) Hula Plain. (r) Upper Jordan Valley. (s) Beit Shean Valley. (t) Mt. Gilboa. (u) Samarian Desert. (v) Judean Desert. (w) Lower Jordan Valley. (x) Dead Sea Valley. (y) Arava Valley. (z) Mount Hermon. (aa) Golan.
Figure 8 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 8. Habitat weighting analysis for the different contexts of Raqefet Cave herpetofauna (a–d); the Late Natufian of EWT (e); Mount Carmel modern herpetofauna (f); Raqefet Locus 1 micro-mammals (g); the x axis denotes the ecological units, see colour legend; the y axis marks the habitat index values. For location of the different habitats in Israel today see.Figure 4
Figure 7 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 7. Intra- and inter-site comparisons between Raqefet Cave (RAQ, shaded) and EWT contexts. The supposed 'least anthropogenic̍ archaeological context in each site is denoted by arrows: (a) taxonomic evenness (Simpson̍s index), data from Table 1; (b) centrum length of the vertebrae (reflecting animal body size); (c) the protruding part index (measuring bone fragmentation).
Figure 6 in Squamates and amphibians from the Natufian cemetery of Raqefet Cave, Israel: taphonomy, paleoenvironments and paleoclimate
Figure 6. Snake bones from Raqefet Cave. Eryx jaculus (a) trunk vertebra, dorsal, ventral, anterior, posterior and lateral views; Hemorrhois nummifer (b) trunk vertebra, dorsal, ventral, anterior, posterior and lateral views; Dolichophis jugularis (c) trunk vertebra dorsal, ventral, anterior, posterior and lateral views; Malpolon insignitus (d) trunk vertebra dorsal, ventral, anterior, posterior and lateral views; Daboia cf. palaestinae (e) vertebra dorsal, ventral, anterior, posterior and lateral views.
Data from: Stage-dependence of phenotypical and phenological maternal effects: insight into squamate reptile reproductive strategies
Open the record for dataset details and reuse information.
Data from: Curvilinear telomere length dynamics in a squamate reptile
Open the record for dataset details and reuse information.
Data from: Correlates of extinction risk in squamate reptiles: the relative importance of biology, geography, threat and range size
Open the record for dataset details and reuse information.
A global analysis of field body temperatures of active squamates in relation to climate and behaviour
Open the record for dataset details and reuse information.
Data from: The convergent evolution of snake-like forms by divergent evolutionary pathways in squamate reptiles
Open the record for dataset details and reuse information.
Data from: Do macrophylogenies yield stable macroevolutionary inferences? An example from squamate reptiles
Open the record for dataset details and reuse information.
Data from: Congruence and conflict in the higher-level phylogenetics of squamate reptiles: an expanded phylogenomic perspective
Open the record for dataset details and reuse information.
Data from: Testing the role of climate in speciation: new methods and applications to squamate reptiles (lizards and snakes)
Open the record for dataset details and reuse information.
Data from: Evolutionary shifts in habitat aridity predict evaporative water loss across squamate reptiles
Open the record for dataset details and reuse information.
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.