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.
53
datasets available to search
ShareScore release 0.9.0
Dataset results
53 results for “egg production”
Figure 3 in Egg production and life history of Alona guttata Sars, 1862 (Cladocera, Chydoridae): implications for colonization of temporary ponds
Figure 3. Growth curve of Alona guttata in experimental conditions of controlled light conditions. (Fed with R. subcapitata, controlled temperature of 22 ± 2 °C and photoperiod of 16 h light/8 h dark.)
Figure 2. Alona guttata Sars, 1862 in Egg production and life history of Alona guttata Sars, 1862 (Cladocera, Chydoridae): implications for colonization of temporary ponds
Figure 2. Alona guttata Sars, 1862: (A) parthenogenetic female; (B) head pore; (C) post-abdomen details.
Figure 1 in Egg production and life history of Alona guttata Sars, 1862 (Cladocera, Chydoridae): implications for colonization of temporary ponds
Figure 1. Reproduction aspects and life cycle parameters of Alona guttata for 18 individuals grown under laboratory conditions. (Fed with R. subcapitata, controlled temperature of 22 ± 2 °C and photoperiod of 16 h light/8 h dark.)
Fig. 3 in Spatial distribution and egg production in squat lobsters (Decapoda: Munididae, Munidopsidae) from the collection of the Museu de Zoologia of the Universidade de São Paulo, Brazil
Fig. 3. Fecundity relationships involving number of eggs (EN) vs. carapace length (CL) in six squat lobsters of Munididae from the coast of Brazil.
Fig. 2 in Spatial distribution and egg production in squat lobsters (Decapoda: Munididae, Munidopsidae) from the collection of the Museu de Zoologia of the Universidade de São Paulo, Brazil
Fig. 2. BathYmetric distribution of ovigerous females in eleven squat lobster species (Munididae and Munidopsidae) from the Brazilian coast. Depth range for each species is shown within brackets.
Fig. 1 in Spatial distribution and egg production in squat lobsters (Decapoda: Munididae, Munidopsidae) from the collection of the Museu de Zoologia of the Universidade de São Paulo, Brazil
Fig. 1. Latitudinal distribution in squat lobsters (Munididae and Munidopsidae) along the Brazilian coast. Spatial distribution in Paramunida scabra from the Pacific Ocean waters is also shown. In legend box, sYmbol '?' indicates absence of information on specific spatial distribution in archives of the Museu de Zoologia of the Universidade de São Paulo (MZUSP), Brazil. ES, RJ, SP, PR, SC, RS, represent the Brazilian states of Espirito Santo, Rio de Janeiro, São Paulo, Paraná and Rio Grande do Sul, respectively.
Fig. 3 in Life Time Egg Production in Females of the Cricket Teleogryllus commodus WALKER 1869 (Insecta: Orthoptera): Experimental Results and Theoretical Predictions
Fig. 3: Total fecundity of female Teleogryllus commodus WALKER for different environmental temperatures (20 °C, 23 °C, 25 °C, and 30 °C). Asterisks indicate significant differences between neighbouring points (p <0.01).
Fig. 5 in Life Time Egg Production in Females of the Cricket Teleogryllus commodus WALKER 1869 (Insecta: Orthoptera): Experimental Results and Theoretical Predictions
Fig. 5: Preliminary results obtained from the computer program CRICKTHERM. Dependence of fecundity on (A) temperature, (B) photoperiod, (C) protein content in food, (D) population density (individuals per square metre).
Fig. 4 in Life Time Egg Production in Females of the Cricket Teleogryllus commodus WALKER 1869 (Insecta: Orthoptera): Experimental Results and Theoretical Predictions
Fig. 4: Results concerning the investigation of ovary weights and their dependence on environmental temperature. A) Scheme showing the preparation procedure necessary for the dissection of the ovaries. B) Graph illustrating the dependence of ovary weight in grams on environmental temperature. Ovary weights from 5-day old females (pre-oviposition period) and 10-day old females (oviposition period) have been compared. Points and error bars denote mean values and standard deviations (asterisks mark significant differences between neighbouring points, p <0.01).
Fig. 2 in Life Time Egg Production in Females of the Cricket Teleogryllus commodus WALKER 1869 (Insecta: Orthoptera): Experimental Results and Theoretical Predictions
Fig. 2: Dependence of daily cricket fecundity on environmental temperature. (A) 20 °C, (B) 23 °C, (C) 25 °C, (D) 30 °C. Black lines represent mean values, whereas dashed lines mark the standard deviations. The thick grey lines show the respective out put produced by CRICKTHERM and should give an impression about the validity of the used model.
Fig. 1 in Life Time Egg Production in Females of the Cricket Teleogryllus commodus WALKER 1869 (Insecta: Orthoptera): Experimental Results and Theoretical Predictions
Fig. 1: Window design and function of the computer program CRICKTHERM calculating the fecundity of female crickets as a function of various environmental parameters. (A) Entrance window, (B) Input window including animal information and input parameters, (C) Output window presenting the fecundity-time-relationship as a line plot as well as specific output parameter, (D) Alternative output window presenting fecundity data as mean values and standard deviations.
The oxidative cost of competing for egg fertilization exceeds the cost of egg production
<p><span>Measuring reproductive costs is crucial to understanding sexual conflict and its evolutionary outcomes. Sexual conflict is thought to originate from anisogamy – the size difference between male and female gametes; if sperm are tiny and not produced in vastly greater numbers than eggs, at any mating females' gametic investment is larger than that of males. Testing this prediction has proven difficult, especially because males and females differ in many more traits than just gamete size. We overcame this difficulty by exposing simultaneously hermaphroditic polychaete worms <em>Ophryotrocha diadema</em> (two sexual functions in the same body) to two social conditions, pairs and groups>2, where hermaphrodites invest either relatively more in the female function or relatively more in the male function, respectively. Then we measured four markers of cellular oxidative status, a physiological mediator of life-history strategies. Less female-biased hermaphrodites produced fewer eggs but, unexpectedly, had lower levels of antioxidant protection than more female-biased hermaphrodites, which produced more eggs. Male-biased hermaphrodites compete for mating as males (hermaphrodites in pairs do not) suggesting that in the short-term male competition might be costlier than egg production in terms of regulation of oxidative status. These results highlight the need of including behavioral traits, namely competition over egg fertilization, in the measures of reproductive costs.</span></p>
The oxidative cost of competing for egg fertilization exceeds the cost of egg production
Open the record for dataset details and reuse information.
Worker survival and egg production depending on the diet
<p>Aging is associated with diverse molecular processes such as oxidative damage, a decrease in immunocompetence, or an increase in epigenetic abnormalities, mutations, and inflammations. Many of these processes are linked to nutrient-sensing signaling pathways, suggesting that diet plays a critical role in the aging process. In fact, the protein content in the diet can affect both longevity and fecundity, but often in opposite directions. In many solitary organisms, protein-rich diets dramatically shorten lifespan but increase egg production. We used the ant <em>Temnothorax rugatulus</em> to investigate the effect of the protein-to-carbohydrate ratio in the diet on the survival and fecundity of fertile workers. We fed colonies either a moderately high-carbohydrate or high-protein diet (1:2 and 2:1 respectively) and monitored worker survival and egg production over nine weeks. The protein-rich diet did not alter the ability of workers to lay eggs, but reduced worker survival, suggesting that consuming large amounts of protein may shorten the lifespan in fertile ant workers without promoting reproduction. Our study shows for the first time that a protein-rich diet reduces the overall fitness of fertile workers.</p>
Wolbachia-infected pharaoh ant colonies have higher egg production, metabolic rate, and worker survival
<p><span><em>Wolbachia</em> is a widespread endosymbiotic bacteria with diverse phenotypic effects on its insect hosts, ranging from parasitic to mutualistic. <em>Wolbachia</em> also commonly infects social insects, where it faces unique challenges associated with its hosts' caste-based reproductive division of labor and colony living. Here we dissect the benefits and costs of <em>Wolbachia</em> infection on life-history traits of the invasive pharaoh ant, <em>Monomorium</em> <em>pharaonis</em>. Pharaoh ants are relatively short-lived and show natural variation in <em>Wolbachia</em> infection between colonies, thereby making them an ideal model system for this study. We quantified effects on the lifespan of queen and worker castes, the egg-laying rate of queens across queen lifespan, and the metabolic rates of whole colonies and colony members. Newly-infected queens laid more eggs than uninfected queens but had similar metabolic rates and lifespans. Surprisingly, infected workers outlived uninfected workers. At the colony level, infected colonies were more productive due to increased queen egg-laying rates and worker longevity, and infected colonies had higher metabolic rates during peak colony productivity. While some effects of infection, such as elevated colony-level metabolic rates may be detrimental in more stressful natural conditions, we did not find any costs of infection under relatively benign laboratory conditions. Overall, our study emphasizes the beneficial effects of <em>Wolbachia</em> on colony-level growth and metabolism in this species.</span></p>
Dietary fat supplements influence weight gain and egg production but not offspring sex ratios in Japanese quail
<p>Sex ratio theory suggests that females should bias offspring sex ratios based on maternal condition and the availability of critical food resources. Work in birds indicates that females do, indeed, bias sex ratios according to maternal condition and food quality and quantity. Yet it is unknown whether these sex ratio skews occur due to fluctuations in particular micro- or macro-nutrients, caloric content overall, or even the perception of food availability. We hypothesized that dietary fats may drive biases in offspring sex ratios, because measures of maternal condition often reflect fat reserves, and fats are critical for the process of egg-laying in birds. To test this, we provided breeding Japanese quail, a species that biases sex ratios in response to maternal condition, with either a control breeding diet or a diet supplemented with two oils (safflower oil and flaxseed oil). These oils were chosen for their high omega-3 and omega-6 fatty acid content as well as their importance in mammalian sex allocation. We then measured influences of these diets on the sex ratio of offspring, the change in maternal weight, and the laying rates of female quail. The dietary oil supplements increased weight gains in quail but decreased the number of eggs laid during the experiment. There was no influence of the oil supplements on offspring sex ratios. This indicates that fat may not be a macro-nutrient involved in the process of sex ratio adjustment in quail.</p>
Wolbachia-infected pharaoh ant colonies have higher egg production, metabolic rate, and worker survival
Open the record for dataset details and reuse information.
Data from: Worker survival and egg production– but not transcriptional activity– respond to queen number in the highly polygynous, invasive ant Tapinoma magnum
Open the record for dataset details and reuse information.
Dietary fat supplements influence weight gain and egg production but not offspring sex ratios in Japanese quail
Open the record for dataset details and reuse information.
Worker survival and egg production depending on the diet
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.