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.
47
datasets available to search
ShareScore release 0.9.0
Dataset results
47 results for “evolutionary determinism”
Data from: Foraging environment determines the genetic architecture and evolutionary potential of trophic morphology in cichlid fishes
Open the record for dataset details and reuse information.
A key evolutionary step determining osmoregulatory ability for freshwater colonisation in early life stages of fish
Open the record for dataset details and reuse information.
Strong selective environments determine evolutionary outcome in time-dependent fitness seascapes
Open the record for dataset details and reuse information.
Data from: Ecological, evolutionary and human-mediated determinants of poeciliid species richness on Caribbean islands
Aim: The theory of island biogeography provides a predictive framework relating species richness to island size and distance from the mainland. However, the theory as originally formulated does not necessarily scale to large islands and continental landmasses that are capable of generating species through in situ speciation (rather than entirely by colonization), nor does it necessarily account for how human introduction of species alters traditional biogeographical patterns. Here, we examine the ecological (colonization and extinction), evolutionary (in situ speciation) and human-mediated (deliberate introductions) determinants of species richness in a taxonomic group that has undergone a radiation on Caribbean islands: live-bearing fishes of the family Poeciliidae. Location: The Caribbean. Methods: We created a database of both native and introduced poeciliid species occurrence on Caribbean islands through literature review, and estimated the number of colonizations versus speciation events on each island using a molecular phylogeny. Linear regression and other statistical tests were used to explore species–area and species–isolation relationships. Results: Species richness on small islands results entirely from colonization and does not significantly increase with island area, whereas on larger islands species richness increases dramatically as a function of area due primarily to in situ speciation. Poeciliid fishes have been introduced widely, both as a by-product of their popularity in the aquarium hobby and as a means of mosquito control. We show that such establishments have occurred disproportionately on islands depauperate in native species, and that introduced species richness is positively correlated with economic interconnectedness (shipping traffic) and human population size. Main conclusions: On large Caribbean islands in situ speciation has elevated the number of poeciliid species beyond that predicted from ecological processes alone. Introduced species significantly alter biogeographical patterns.
Data from: Ecological and evolutionary determinants for the adaptive radiation of the Madagascan vangas
Adaptive radiation is the rapid diversification of a single lineage into many species that inhabit a variety of environments or use a variety of resources and differ in traits required to exploit these. Why some lineages undergo adaptive radiation is not well-understood, but filling unoccupied ecological space appears to be a common feature. We construct a complete, dated, species-level phylogeny of the endemic Vangidae of Madagascar. This passerine bird radiation represents a classic, but poorly known, avian adaptive radiation. Our results reveal an initial rapid increase in evolutionary lineages and diversification in morphospace after colonizing Madagascar in the late Oligocene some 25 Mya. A subsequent key innovation involving unique bill morphology was associated with a second increase in diversification rates about 10 Mya. The volume of morphospace occupied by contemporary Madagascan vangas is in many aspects as large (shape variation)—or even larger (size variation)—as that of other better-known avian adaptive radiations, including the much younger Galapagos Darwin's finches and Hawaiian honeycreepers. Morphological space bears a close relationship to diet, substrate use, and foraging movements, and thus our results demonstrate the great extent of the evolutionary diversification of the Madagascan vangas.
Are evolutionary transitions in sexual size dimorphism related to sex determination in reptiles? - Electronic supplementary material
<p class="western"><span><span><span><span>Sex determination systems are highly variable in vertebrates, although neither the causes nor the implications of this diversity are fully understood. Theory suggests that sex determination is expected to relate to sexual size dimorphism, because environmental sex determination promotes sex-specific developmental bias in embryonic growth rates. Furthermore, selection for larger size in one sex or the other has been proposed to drive the evolution of different genetic sex determination systems. Here we investigate whether sex determination systems relate to adult sexual size dimorphism, using 250 species of reptiles (Squamata, Testudines, Crocodylia) representing 26 families. Using phylogenetically informed analyses, we find that sexual size dimorphism is associated with sex determination: species with TSDIa sex determination (i.e. in which the proportion of female offspring increases with incubation temperature), have more female-biased size dimorphism than species with TSDII (i.e., species in which males are produced at mid temperatures). We also found a trend that species with TSD ancestors had more male-biased size dimorphism in XY sex-chromosome systems than in ZW sex-chromosome systems. Taken together, our results support the prediction that sexual size dimorphism is linked to sex-dependent developmental variations caused by environmental factors and also by sex chromosomes. Since the extent of size dimorphism is related to various behavioural, ecological and life-history differences between sexes, our results imply profound impacts of sex determination systems for vertebrate diversity.</span></span></span></span></p>
Data from: Ecological, evolutionary and human-mediated determinants of poeciliid species richness on Caribbean islands
Open the record for dataset details and reuse information.
Data from: Timing of starvation determines its effects on susceptibility to bacterial infection in female fruit flies independent of host evolutionary history
Open the record for dataset details and reuse information.
Data from: Ecological and evolutionary determinants for the adaptive radiation of the Madagascan vangas
Open the record for dataset details and reuse information.
Data from: Evolutionary determinants of morphological polymorphism in colonial animals
Open the record for dataset details and reuse information.
Data from: Landscape-scale eco-evolutionary dynamics: selection by seed predators and fire determine a major reproductive strategy
Open the record for dataset details and reuse information.
Data from: Evolutionary tracking is determined by differential selection on demographic rates and density dependence.
Open the record for dataset details and reuse information.
Are evolutionary transitions in sexual size dimorphism related to sex determination in reptiles? - Electronic supplementary material
Open the record for dataset details and reuse information.
Fig 2 from: Strauß J (2019) What determines the number of auditory sensilla in the tympanal hearing organs of Tettigoniidae? Perspectives from comparative neuroanatomy and evolutionary forces. Journal of Orthoptera Research 28(2): 205-219. https://doi.org/10.3897/jor.28.33586
Fig 2 Standardized effects of call patterns in Neoconocephalus on the number of CA sensilla and CA length for a. Pulse rate; b. Structure of continuous or discontinuous calls; and c. Pulse pattern. The evolutionary derived call characters are a slow pulse rate, discontinuous calls, and double pulses. Significance levels: * 0.05 > p > 0.01; ** 0.01 > p > 0.001. Adapted from Strauß et al. 2017, with permission from John Wiley and Sons.
Fig 1 from: Strauß J (2019) What determines the number of auditory sensilla in the tympanal hearing organs of Tettigoniidae? Perspectives from comparative neuroanatomy and evolutionary forces. Journal of Orthoptera Research 28(2): 205-219. https://doi.org/10.3897/jor.28.33586
Fig 1 The auditory system of bushcrickets. a. Schematic of the acoustic trachea (at) from the acoustic spiracle (as) in the thorax into the foreleg with tympanal membranes (ty) in the proximal tibia; b. Transverse section of the tibia at the level of the tympana and crista acustica in Gampsocleis gratiosa; in Gampsocleis gratiosa; c. The sensory organs in the proximal tibia of the male Tettigonia viridissima. The dorsal cuticle has been removed after axonal tracing of the tympanal nerve with cobalt solution to stain sensory neurons of the subgenual organ (SGO), intermediate organ (IO) and crista acustica. The crista acustica is placed between the anterior tympanum (aty) and posterior tympanum (pty). The tympanal flaps (tf) cover the tympanal membranes. Arrows indicate the tectorial membrane; d. Morphological differences of sensory neurons along the crista acustica from G. gratiosa, showing the (di) third-most proximal, (dii) middle, and (diii) third-most distal sensillum. Abbreviations: at, anterior trachea; aty, anterior tympanum; cc, cap cell; de, dendrite; dow, dorsal tracheal wall; hc, haemolymph channel; IO, intermediate organ; nmc, nerve muscle channel; nsc, nucleus of scolopale cell; pn, perikarya of sensory neurons; pt, posterior trachea; pty, posterior tympanum; s, septum; sb, supporting band; scol, scolopale cap and rods; SGO, subgenual organ; sli, slit; sn, sensory neuron; tf, tympanal flap; tm, tectorial membrane. Scales: 500 µm (B), 100 µm (C), 50 µm (D). Figure a. reprinted from Strauß et al. 2014, with permission from John Wiley and Sons. b., d. redrawn from Lin et al. 1994, with permission from John Wiley and Sons.
Data from: Large scale determination of previously unsolved protein structures using evolutionary information
Open the record for dataset details and reuse information.
A Micro-evolutionary Change in Target Binding Sites as a Key Determinant of Ultrabithorax Function in Drosophila
GEO Series GSE205352. Drosophila melanogaster. 6 samples. Type: Expression profiling by high throughput sequencing.
A Micro-evolutionary Change in Target Binding Sites as a Key Determinant of Ultrabithorax Function in Drosophila [ChIP-seq]
GEO Series GSE205177. Drosophila melanogaster. 12 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
A Micro-evolutionary Change in Target Binding Sites as a Key Determinant of Ultrabithorax Function in Drosophila
GEO Series GSE205353. Drosophila melanogaster. 18 samples. Type: Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
A novel evolutionary conserved mechanism of RNA stability regulates synexpression of primordial germ cell-specific genes prior to the sex-determination stage
GEO Series GSE104726. Oryzias latipes. 8 samples. Type: Expression profiling by array.
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.