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.
2,291
datasets available to search
ShareScore release 0.7.1
Dataset results
2,291 results for “life history”
Figure 1 in Life history of the Rio Grande leopard frog (Lithobates berlandieri) in Texas
Figure 1. Map of Texas (USA) showing the 39 counties of origin (in grey) for 310 museum specimens of the Rio Grande leopard frog (Lithobates berlandieri) examined in this study. Bottom left: Picture of L. berlandieri from Jeff Davis County (photo by Frank Portillo. with permission).
The elephant in the family: Costs and benefits of elder siblings on younger offspring life-history trajectory in a matrilineal mammal
<p>1. Many mammals grow up with siblings, and interactions between them can influence offspring phenotype and fitness. Among these interactions, sibling competition between different-age offspring should lead to reproductive and survival costs on the younger sibling, while sibling cooperation should improve younger sibling's reproductive potential and survival. However, little is known about the consequences of sibling effects on younger offspring life history trajectory, especially in long-lived mammals.</p> <p>2. We take advantage of a large, multigenerational demographic dataset from semi-captive Asian elephants to investigate how the presence and sex of elder siblings influence the sex, survival until five years old, body condition, reproductive success (i.e. age at first reproduction and lifetime reproductive success), and long-term survival of subsequent offspring.</p> <p>3. We find that elder siblings have heterogenous effects on subsequent offspring life-history traits depending on their presence, their sex, and the sex of the subsequent offspring (named focal calf).</p> <p>4. Overall, the presence of an elder sibling (either sex) strongly increased focal calf long-term survival (either sex) compared to sibling absence. However, elder sisters had higher impact on the focal sibling than elder brothers. Focal females born after a female display higher long-term survival, and decreased age at first reproduction when raised together with an elder sister rather than a brother. Focal males born after a female rather than a male showed lower survival but higher body weight when both were raised together. We did not detect any sibling effects on the sex of the focal calf sex, survival until five years old and lifetime reproductive success.</p> <p>5. Our results highlight the general complexity of sibling effects, but broadly that elder siblings can influence the life-history trajectory of subsequent offspring. We also stress the importance of considering all life stages when evaluating sibling effects on life trajectories. 22-Jul-2021 --</p>
Figure 4 in Hatching phenology, life history and population dynamics of the Oriental clam shrimp Eulimnadia indocylindrova Durga Prasad and Simhachalam with notes on phenology patterns in the Spinicaudata
Figure 4. Cyclical hydration experiment: (a) trend of hatching (mean ± SE) observed per day for a hydroperiod of 10 days, for six successive hydrations; (b) emergence (mean ± SE) observed across six successive hydrations; (c) hatching duration, Td (mean ± SE) in days for six successive hydrations.
Figure 3 in Hatching phenology, life history and population dynamics of the Oriental clam shrimp Eulimnadia indocylindrova Durga Prasad and Simhachalam with notes on phenology patterns in the Spinicaudata
Figure 3. Continuous hydration experiment: (a) No. of hatched nauplii (mean ± SE) seen per day for the 30-day inundation; (b) emergence pattern (No. of emerging nauplii mean ± SE) observed per 10 days for the 30-day inundation.
Figure 2 in Hatching phenology, life history and population dynamics of the Oriental clam shrimp Eulimnadia indocylindrova Durga Prasad and Simhachalam with notes on phenology patterns in the Spinicaudata
Figure 2. Field data and morphometry: (a) temporal patterns of sex-ratio and number of eggbearing hermaphrodites recorded in field samples (2016); (b) number of individuals of different carapace length size ranges across 3 years; (c) relationship between body length and carapace length of adult individuals; (d) relationship between body height and carapace height of adult individuals.
Figure 4 in Life history of Paraselenis (Spaethiechoma) dichroa (Germar, 1824) (Coleoptera: Chrysomelidae: Cassidinae) in natural conditions of Atlantic Forest from Brazil
Figure 4. Paraselenis (Spaethiechoma) dichroa pupae: Orange pre-pupae and newly formed brown pupae (a); pupae grouped and overlapping stem (b). Paraselenis (S.) dichroa parasitoids (c and d): Hymenoptera: Chalcididae: Brachymeria sp. on pupae (c). Hymenoptera: Chalcididae: Conura sp (d). P. dichroa pupae dark in colour due to the attack by parasitoids (e). Paraselenis (S.) dichroa adults newly emerged (f and g). National Forest of Passa Quatro, Minas Gerais, Brazil. Photo: Cuozzo, M.D.
Figure 1 in Life history of Paraselenis (Spaethiechoma) dichroa (Germar, 1824) (Coleoptera: Chrysomelidae: Cassidinae) in natural conditions of Atlantic Forest from Brazil
Figure 1. Host plants of Paraselenis (Spaethiechoma) dichroa: Ipomoea sp. (Convolvulaceae) (a), Merremia macrocalyx (Convolvulaceae) (b). Paraselenis (S.) dichroa female near to the clusters, grouped and imbricated along the midrib on the abaxial surface of a leaf of Ipomoea sp. (Convolvulaceae) (c and d). Emersonella pubipennis, parasitoid collected from Paraselenis dichroa eggs (e). National Forest of Passa Quatro, Minas Gerais state, Brazil. Photo: Cuozzo, M.D.
Figure 2 in Life history of Paraselenis (Spaethiechoma) dichroa (Germar, 1824) (Coleoptera: Chrysomelidae: Cassidinae) in natural conditions of Atlantic Forest from Brazil
Figure 2. Mean (bars) and standard deviation (vertical lines) of the number of individuals in each developmental stage of Paraselenis (Spaethiechoma) dichroa. National Forest of Passa Quatro, Minas Gerais state, Brazil, from February to April 2015.
Figure 3 in Life history of Paraselenis (Spaethiechoma) dichroa (Germar, 1824) (Coleoptera: Chrysomelidae: Cassidinae) in natural conditions of Atlantic Forest from Brazil
Figure 3. Larvae of Paraselenis dichroa: larvae newly hatched (a); of the larval first instar feeding pattern (b); larvae of last instar and cycloalexy (a and c). Diptera (Tachinidae) parasitizing larva (d); pre-pupae parasitized (darker) by Tachinidae (Diptera) (e). Nymph of Stiretrus decastigmus preying on Paraselenis (Spaethiechoma) dichroa larvae (f). National Forest of Passa Quatro, Minas Gerais, Brazil. Photo: Cuozzo, M.D.
Figure 5 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 5. Scatterplot of the relationship of PC1 on body weight separated by group (a), on body weight separated by sex (b), OvWBW (c) and NgWBW (d) for females separated by group.
Figure 3 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 3. Schematic representation of the series of growth increments (GINC) read over the dorsal surface of the gladius, the filtering process and the back-calculation of the gladius growth.
Figure 1 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 1. Spatial representation of the study area. (a–c) Positions of the samples of Illex argentinus collected from trawlers south-southeast of Brazil between 22° and 33°S and 45 and 722 m depth from 2001 to 2013. (b) Samples used in geometric morphometric analysis. (c) Samples used in traditional morphometric analysis. (d) Samples collected during a research cruise during August of 2004 in the same area to identify size-selective processes. Lines in maps represent 100, 300 and 700 m depth.
Figure 4 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 4. Length distributions of the (a) Local Group (LG) and the (b) Migratory Group (MG) captured south-southeast of Brazil between 2009 and 2013. Scatterplots of the first (PC1) and second (PC2) components of the principal component analysis using body landmarks separated by group (c) and by sex (d). Scatterplot of relationship of PC1 on centroid size separated by group (e) and by sex (f).
Figure 2 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 2. Landmark configuration on the body of Illex argentinus. Dashed line represents the longitudinal axis of the body.
Figure 8 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 8. Length distributions of Illex argentinus captured in south-southeastern Brazil between 22° and 33°S and 45 and 722 m depth from 2001 to 2013.
Figure 7 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 7. (a) Mean gladius length (GL) in research cruise, and (b) mean individuals recent growth trajectories of squid captured in research cruise reconstructed from gladius.
Figure 10 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 10. Size differentiation of squid groups during the period of growth reconstructed expressed by the variation of the coefficient of asymmetry (g1) of the length frequency distributions by growth interval (days).
Figure 9 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 9. Gladius length frequency distributions of Illex argentinus reconstructed for the last 15 days before the capture from the measured increments on the gladius for the trawls 2–4 (T2-4) and trawls 9–14 (T9-14) of the research cruise.
Figure 6 in Analysis of shape variability and life history strategies of Illex argentinus in the northern extreme of species distribution as a tool to differentiate spawning groups
Figure 6. Barplots represents the length distributions of males and females of Illex argentinus captured during the fourth trimester of 2006 south-southeast of Brazil and a sample from the Uruguayan/Argentine common fishing zone collected in 2005, here defined as pre-migratory group (J). The analysis aimed to verify a possible correspondence between J and the expected MG, represented by two samples collected in the south (S) and central (C) portions of the studied area and if J is morphometrically different from the LG, captured in the north (N) portion of study area (Figure 1(c)). Plots represent the principal component analysis of the samples N, C, S and J. FRAL, length of the fourth right arm; BW, body weight; MW, mantle weight; MP, mantle perimeter.
Figure 1 in Abundance variations and life history traits of two sympatric species of Neotropical annual fish (Cyprinodontiformes: Rivulidae) in temporary ponds of southern Brazil
Figure 1. Map of South America and location of the Lagoa do Peixe National Park (LPNP) and study sites sampled in southern Brazil in 2008 and 2009.
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.