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.
4,157
datasets available to search
ShareScore release 0.9.0
Dataset results
4,157 results for “Survival.”
Data from: Females gain survival benefits from immune-boosting ejaculates
Females in many animal taxa incur significant costs from mating in the form of injury or infection, which can drastically reduce survival. Therefore, immune function during reproduction can be important in determining lifetime fitness. Trade-offs between reproduction and immunity have been extensively studied, yet a growing number of studies demonstrate that mated females have a stronger immune response than virgins. Here, we use the Texas field cricket, Gryllus texensis, to test multiple hypotheses proposed to explain this post-mating increase in immune function. Using host-resistance tests, we found that courtship, copulation, and accessory fluids alone do not affect female immunity; rather, only females that acquire intact ejaculates containing testes-derived components exhibit significant increases in survival after exposure to bacterial pathogens. Our data suggest that male-derived components originating from an intact ejaculate and transferred to females during sex are required for the increased immune function characteristic of mated female crickets to occur.
Data from: Survival of the feces: does a nematode lungworm adaptively manipulate the behavior of its cane toad host?
Parasites can enhance their fitness by modifying the behavior of their hosts in ways that increase rates of production and transmission of parasite larvae. We used an antihelminthic drug to experimentally alter infections of lungworms (Rhabdias pseudosphaerocephala) in cane toads (Rhinella marina). We then compared subsequent behaviors of dewormed toads versus toads that retained infections. Both in the laboratory and in the field, the presence of parasites induced hosts to select higher body temperatures (thereby increasing rates of lungworm egg production), to defecate in moister sites, and to produce feces with higher moisture content (thereby enhancing survival of larvae shed in feces). Because those behavioral modifications enhance rather than decrease parasite fitness, they are likely to have arisen as adaptive manipulations of host behavior rather than as host adaptations to combat infection or as nonadaptive consequences of infection on host physiology. However, the mechanisms by which lungworms alter cane toad thermal preference and defecation are not known. Although many examples of host manipulation by parasites involve intermediate hosts facilitating their own demise, our findings indicate that manipulation of definitive hosts can be as subtle as when and where to defecate.
Data from: Maternal effects influence phenotypes and survival during early life stages in an aquatic turtle
Offspring phenotypic variation can be substantially influenced by non-genetic factors such as maternal effects, which ultimately can influence organismal fitness. For oviparous organisms that lack parental care, oviposition-site choice and egg size are maternal effects that can greatly affect offspring traits. Yet, few studies examine the consequences of these traits in the wild. We manipulated the contents of natural painted turtle nests such that offspring spent two life stages (incubation and hibernation) in either maternally-selected nest sites or randomly-selected nest sites, and quantified treatment differences in environmental parameters and offspring phenotypes. Additionally, we tracked the fates of individual eggs and hatchlings, which allowed us to quantify the strength and form of selection acting on egg size during incubation and, for the first time, body size during hibernation. Maternally-selected nest sites were warmer and produced offspring that were longer and hatched earlier than their siblings emerging from cooler, randomly-selected nests. Treatments did not affect any measured traits during hibernation. We detected no selection on egg size during the incubation stage, but significant linear selection favoring larger hatchlings during hibernation. Our results suggest that nest-site choice allows mothers to partially control the environment of their incubating eggs, but is less effective at controlling hatchling environments during hibernation. Additionally, we provide novel support for the "bigger-is-better" hypothesis in turtles by showing a positive relationship between size and survival during the hibernation stage.
Data from: Experimental evolution of Legionella pneumophila in mouse macrophages leads to strains with altered determinants of environmental survival
The Gram-negative bacterium, Legionella pneumophila, is a protozoan parasite and accidental intracellular pathogen of humans. We propose a model in which host cycling through multiple protozoan hosts in the environment holds L. pneumophila in a state of evolutionary stasis as a broad host-range pathogen. Using an experimental evolution approach, we tested this hypothesis by restricting L. pneumophila to growth within mouse macrophages for hundreds of generations. Whole-genome resequencing and high-throughput genotyping identified several parallel adaptive mutations and population dynamics that led to improved replication within macrophages. Based on these results, we provide a detailed view of the population dynamics of an experimentally evolving bacterial population, punctuated by frequent instances of transient clonal interference and selective sweeps. Non-synonymous point mutations in the flagellar regulator, fleN, resulted in increased uptake and broadly increased replication in both macrophages and amoebae. Mutations in multiple steps of the lysine biosynthesis pathway were also independently isolated, resulting in lysine auxotrophy and reduced replication in amoebae. These results demonstrate that under laboratory conditions, host restriction is sufficient to rapidly modify L. pneumophila fitness and host range. We hypothesize that, in the environment, host cycling prevents L. pneumophila host-specialization by maintaining pathways that are deleterious for growth in macrophages and other hosts.
Data from: The survival-reproduction association becomes stronger when conditions are good
Positive covariations between survival and reproductive performance (S-R covariation) are generally interpreted in the context of fixed or dynamic demographic heterogeneity (i.e., persistent differences between individuals, or dynamic variation in resource acquisition), but the processes underlying covariations are still unknown. We used multi-event modelling to investigate how environmental and individual features influence S-R covariation patterns in a long-lived seabird, the Monteiro's storm-petrel (Oceanodroma monteiroi). Our analysis reveals that a strong positive association between individual breeding success and subsequent survival occurs only when conditions are favourable to reproduction (in favourable years, in high quality nests and in nest-faithful breeders). This finding reflects differences in the main causes of breeding failure and mortality under favourable and unfavourable conditions, which in turn lead to distinct patterns of S-R covariation. We suggest, in particular, that resource-related sources of demographic heterogeneity do not generate a strong S-R covariation, in contrast to hidden and unpredictable sources of variation.
Fig. 5 in Fecundity And Offspring Survival Of Copris Tripartitus Waterhouse (Coleoptera, Scarabaeidae: Scarabaeinae) Under Laboratory Rearing Conditions
Fig. 5. Types of ovary resorption found in C. tripartitus females.
Fig. 1 in Fecundity And Offspring Survival Of Copris Tripartitus Waterhouse (Coleoptera, Scarabaeidae: Scarabaeinae) Under Laboratory Rearing Conditions
Fig. 1. Variation in the number of brood balls made by pairs of C. tripartitus.
METEOROLOGICAL AND AGRICULTURAL DROUGHT RISK ASSESSMENT VIA KAPLAN-MEIER SURVIVABILITY ESTIMATOR SUPPLEMENTARY DATA
Open the record for dataset details and reuse information.
Multimodal Features Integration: Genomics and Histopathological images for colon cancer stage prediction and survival stratification
<p>File Description</p> <p>clinical_patient_coad.xls - Clinical data for colon cancer patients<br>COAD__geneExp.xls - RNA data for colon cancer patients<br>COAD__methylation_450__TSS200-TSS1500.xls - DNA methylation data for colon cancer patients<br>COAD__miRNAExp__ReadCount.xls - miRNA data for colon cancer patients<br>COAD_DX_STG1.tar.gz - Image tiles for stage 1 colon cancer patients<br>COAD_DX_STG2.tar.gz - Image tiles for stage 2 colon cancer patients<br>COAD_DX_STG3.tar.gz - Image tiles for stage 3 colon cancer patients<br>COAD_DX_STG4.tar.gz - Image tiles for stage 4 colon cancer patients</p>
Mismatch between strong nest site selection and low survival of nests and broods for American woodcock and its implications for conservation
<p>Code and data for the paper entitled "Mismatch between strong nest site selection and low survival of nests and broods for Scolpax minor (American woodcock) and its implications for conservation" published in Ornitholgical Applications (2025). R code for landscape nest site selection is called <a href="../api/records/10927854/draft/files/landscape_nest_selectionornapplications.R/content" target="_blank" rel="noopener">landscape_nest_selectionornapplications.R</a> and data is called usedand5000availpoints.csv. R Code for local nest site selection is called <a href="../api/records/10927854/draft/files/local_nest_selectionornapplications.R/content" target="_blank" rel="noopener">local_nest_selectionornapplications.R</a> and data is called 2021_2022_nestdataveragedwithuse.csv. R code for nest survival is called <a href="../api/records/10927854/draft/files/nestsurvivalornapplications.R/content" target="_blank" rel="noopener">nestsurvivalornapplications.R</a> and data is called nestencounterwweather.csv and nestencounterhistoryweatherhabitat.csv. R code for brood survival is called <a href="../api/records/10927854/draft/files/broodsurvivalornapplications.R/content" target="_blank" rel="noopener">broodsurvivalornapplications.R</a> and data is called broodencounterhistoryweather.csv. All datasets are within the zipped folder called Nest Site Selection and Survival Analyses.zip</p>
Differences in adult survival drive divergent demographic responses to warming on the Tibetan Plateau
<p>This file provides the demographic parameters for vital rates and codes to run the analyses in the manuscript "Differences in adult survival drive divergent demographic responses to warming on the Tibetan Plateau".</p> <p>1. Demographic parameters are contained in the <code>PARAMETERS FOR VITAL RATES/</code> directory.</p> <p>2. The codes are contained in the <code>RCODE/</code> directory.</p>
Simulations results of the paper "The progression-free-survival ratio in molecularly-aided tumor trials - a critical examination of current practice and suggestions for alternative methods" by Edelmann, Terzer, Schlenk, Horak, Benner
Open the record for dataset details and reuse information.
Cycles of Survival: Resilience and Renewal in Alexis Wright's The Swan Book
Open the record for dataset details and reuse information.
Long-term monitoring reveals sex- and age-related survival patterns in griffon vultures
<p>Excel dataset</p>
Data for: Food Web Structure Significantly Affects the Body Condition and Survival of an Amphibian Intraguild Predator
<p>Data for upcoming publication</p>
Figure 3 in Terrestrial invertebrates surviving San Ambrosio island's ecological catastrophe reinforce biogeographic affinities between the Juan Fernández and Desventuradas Islands
Figure 3. Land snail. Tornatellides (Ambrosiella) kuscheli (Achatinellidae) Endemic.
Negative effects of neonicotinoids on male honeybee survival, behaviour and physiology in the field
<p>1. Agricultural chemicals such as neonicotinoid insecticides are believed to be one important factor responsible for the recent reduction in health of pollinating insects like the western honeybee (<i>Apis mellifera</i>). However, effects of neonicotinoids on male (drone) honeybee health remain severely understudied.</p> <p>2. We examined for the first time the multi-dimensional effects of field-realistic concentrations of two common neonicotinoid insecticides (thiamethoxam and clothianidin) on drone honeybee survival, behaviour, and physiology using individuals reared and maintained as adults in the field.</p> <p>3. Our data showed that neonicotinoids reduced honeybee drone survival by 51%, increased drifting behaviour to non-maternal colonies by 100%, delayed flight activities by three days, and reduced number of living sperm by 28%. However, they did not influence the sperm concentration produced by the drones, the strength of the drone's maternal colonies, or the total number of drones produced by those colonies.</p> <p>4. '<i>Policy implications'</i>: Our study demonstrated that neonicotinoids can elicit a diverse array of lethal (survival) and sub-lethal (behaviour, reproductive physiology) effects on male honeybees (<i>Apis mellifera</i>) in the field. These findings should be considered by policy makers looking to adopt and implement science-based, holistic risk assessments to more comprehensively assess effects of chemicals on important ecosystem service providing insects like the honeybee. To date, risk assessment schemes do not specifically address potential effects on male bees.</p>
Data associated with "Survival outcomes are associated with genomic instability in luminal breast cancers".
<p>Data utilised in <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0245042">Survival outcomes are associated with genomic instability in luminal breast cancers</a>.</p>
Brood sex ratio, early chick survival, and cell-mediated immunity measurements for 3 experimental groups of Larus canus and Chroicocephalus ridibundus pairs
<p>Sex allocation theory predicts that parents should adjust their brood sex ratio to maximize fitness returns in relation to parental investment. Adaptive adjustment of sex ratio may be driven by differential costs of rearing sons and daughters or differential benefits of investing limited resources into offspring of different sex. In both cases, possible sex ratio bias should depend on parental condition. For sexually dimorphic birds with males larger than females, sons may be less likely to fledge since they are more vulnerable to food shortages or because they have impaired immunocompetence due to higher testosterone levels. Poor condition females should thus overproduce daughters to minimize possible reproductive failure. We manipulated the number of eggs laid and the amount of food available to laying females to induce differences in the condition in two gull species differing in sexual size-dimorphism. In the Black-headed Gull (<em>Chroicocephalus ridibundus</em>), sexual size differences are marginal, but in the Mew Gull (Larus canus, MG) males are 11% larger. In both species, females forced to lay an additional egg (presumed in worse condition) overproduced daughters, while females receiving supplemental food before laying (presumed improved condition) overproduced sons. This sex ratio skew was larger in MG, species with larger size dimorphism. Chick immunocompetence at hatching was unrelated to sex, being higher in broods of fed mothers and lower for chicks hatched from last-laid eggs. Chick survival between hatching and day 5 post-hatch was positively related to their immunocompetence, but chicks from last-laid eggs and males of the more dimorphic species (MG) survived less well. Results indicate that costs of raising larger sex offspring coupled with parental condition shape brood sex ratio in populations studied. Adaptive brood sex ratio adjustment occurs mostly before egg-laying and includes differential sex allocation in eggs depending on the probability of producing a fledged chick.</p>
Survival of antimicrobial peptide resistant Staphylococcus aureus in mealworm beetles (Tenebrio molitor) with manipulated AMPexpression
<p><span>Antimicrobial peptides (AMP) are essential immune effectors of multicellular organisms. Bacteria can evolve resistance to AMPs. Surprisingly, when used to challenge the insect <em>Tenebrio molitor</em>, <em>Staphylococcus aureus</em> resistant to an abundant beetle AMP (tenecin 1) and also pleiotropically to phagocytosis did not increase host mortality or bacterial load compared to infections with wild-type <em>S. aureus</em>. A possible explanation is that antimicrobial resistance is costly due to collaterally increased sensitivity of AMP-resistant strains to other immune effectors. Here, we studied the sensitivity of a group of AMP-resistant <em>S. aureus</em> strains (which are either resistant to tenecin 1 or a combination of both tenecin 1 and tenecin 2) to other immune effectors such as phenoloxidase (PO) and other AMPs (specifically tenecin 1, tenecin 2 and tenecin 4) <em>in vivo</em>. Using RNAi-based knockdown (KD), we investigated <em>S. aureus in vivo</em> survival in insect hosts lacking particular immune effectors. We found that all except one AMP-resistant strain displayed collateral sensitivity toward phenoloxidase. Moreover, some AMP-resistant mutant strains showed sensitivity to one or more components of the beetle AMP defence cocktail. Our findings are consistent with the idea that resistance to AMPs and phagocytosis does not translate into changes in virulence because it is balanced by collaterally increased sensitivity to other host immune effectors. AMP resistance fails to provide a net survival advantage to <em>S. aureus</em> in a host environment that is dominated by AMPs because of the greater sensitivity to other immune effectors.</span></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.