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1,888 results for “Cooperation”
Fig. 1 in Comparative Biology Of Cave-Dwelling Spitting Spiders (Araneae: Scytodidae): Parental Care, Cooperative Prey-Capture, Cannibalism, Natal Dispersal And Reproductive Behaviour
Fig. 1. Four species of cave scytodid spiders. (A) female and (B) male Scytodes magna, body length = 10.5 mm; (C) female and (D) male S. fusca, body length = 5.8 mm; (E) female Philippines Scytodes sp. 2, body length = 5.6mm; and (F) female S. cavernarum, body length = 5.3 mm.
Fig. 6 in Comparative Biology Of Cave-Dwelling Spitting Spiders (Araneae: Scytodidae): Parental Care, Cooperative Prey-Capture, Cannibalism, Natal Dispersal And Reproductive Behaviour
Fig. 6. Newly emerged Guangxi Scyloxes sp. 1 spiderlings spread out on the sparse silk nest, and female feeding on house fly alone. Body length of adult female = 11.5 mm.
Fig. 7 in Comparative Biology Of Cave-Dwelling Spitting Spiders (Araneae: Scytodidae): Parental Care, Cooperative Prey-Capture, Cannibalism, Natal Dispersal And Reproductive Behaviour
Fig. 7. Relationship between the days in which spiderlings dispersed and spiderling mass in five cave scytodid species. (A) Scytodes fusca; (B) S. carvernarum; (C) Philippines Scytodes sp. 2.; (D) S. magna; and (E) Guangxi Scyloxes sp. 1.
Fitness benefits of alternated chick provisioning in cooperatively breeding carrion crows
<p>In most bird species, parents raise offspring cooperatively. In some cases, this cooperation extends to helpers-at-the-nest who assist the breeders with a range of tasks. While cooperative food provisioning might merely arise incidentally, as a result of the efforts of carers that act independently from each other, recent studies suggest that birds may coordinate by taking turns in visiting the nest. However, evidence that such coordination emerges because individuals actively respond to each other's behaviour is controversial, and the potential benefits of carers' alternation remain unknown. We addressed this knowledge gap by analysing a multi-year dataset for cooperatively breeding carrion crows, <em>Corvus corone</em>, comprising 8,693 nest visits across 50 groups. Our results reveal that turn taking does occur in this species and that all group members, regardless of their sex and social role (breeder/helper), tend to alternate at the nest with other carers rather than to make repeat visits. Importantly, we found that the body mass of nestlings increased significantly with the degree of carers' alternation, possibly because well-coordinated groups provided food at more regular intervals. Using earlier monitoring data, the observed increase in body mass is predicted to substantially boost post-fledging survival rates. Our analyses demonstrate that alternation in nestling provisioning has measurable fitness benefits in this study system. This raises the possibility that cooperatively breeding carrion crows, as well as other bird species with similarly coordinated brood provisioning, exhibit specialized behavioural strategies that enable effective alternation.</p>
Costless renewable energy distribution model based on cooperative game theory for energy communities considering its members' active contributions
<p>This dataset was used in the case study of the following publication:</p> <p> - Luis Gomes, Zita Vale, "Costless renewable energy distribution model based on cooperative game theory for energy communities considering its members’ active contributions," Sustainable Cities and Society, Volume 101, 2024, 105060, ISSN 2210-6707, <a href="https://doi.org/10.1016/j.scs.2023.105060">https://doi.org/10.1016/j.scs.2023.105060</a> </p> <p><em>(if you used this dataset in your publications, please send us your information so we can add your publication to the list above)</em></p> <p> </p> <p>The dataset is composed by energy generation, consumption, and forecast (for generation, and for consumption) expressed in Wh. The data considers an energy community of 10 prosumers in 30 days.</p> <p>The dataset also has energy prices that have been collected from MIBEL (Iberian Electricity Market).</p> <p> </p> <p>We would be grateful if you could acknowledge the use of this dataset in your publications. Please use the Zenodo publication to cite this work.</p>
Data from: Genes for cooperation are not more likely to be carried by plasmids
<p>Cooperation is prevalent across bacteria, but risks being exploited by non-cooperative cheats. Horizontal gene transfer, particularly via plasmids, has been suggested as a mechanism to stabilize cooperation. A key prediction of this hypothesis is that genes that are more likely to be transferred, such as those on plasmids, should be more likely to code for cooperative traits. Testing this prediction requires identifying all genes for cooperation in bacterial genomes. However, previous studies used a method that likely misses some of these genes for cooperation. To solve this, we used a new genomics tool, SOCfinder, which uses three distinct modules to identify all kinds of genes for cooperation. We compared where these genes were located across 4648 genomes from 146 bacterial species. In contrast to the prediction of the hypothesis, we found no evidence that plasmid genes are more likely to code for cooperative traits. Instead, we found the opposite - that genes for cooperation were more likely to be carried on chromosomes. Overall, the vast majority of genes for cooperation are not located on plasmids, suggesting that the more general mechanism of kin selection is sufficient to explain the prevalence of cooperation across bacteria.</p>
Evolution of conditional cooperation in collective-risk social dilemma with repeated group interactions
<p>The question of how cooperation evolves and is sustained over time has been a long-standing and unresolved issue in the fields of evolutionary biology and social sciences. Previous theoretical and experimental research based on the collective-risk social dilemma game has revealed the risk that the failure of collective goals will affect the evolution of cooperation. Considering that in the real world individuals usually adjust their decisions based on environmental factors such as risk intensity and cooperation level, it is still not well understood how such conditional behaviors affect the evolution of cooperation in repeated group interactions scenario from a theoretical perspective. Here, we construct an evolutionary game model with repeated interactions, in which defectors decide whether to cooperate in subsequent rounds of the game based on whether the risk exceeds their tolerance threshold and whether the number of cooperators exceeds the collective goal in the early rounds of the game. We find that the introduction of conditional cooperation strategy can effectively promote the emergence of cooperation, especially when the risk is low. In addition, the risk threshold significantly affects the evolutionary outcomes. Furthermore, our results confirm that a high risk can promote the emergence of cooperation. Importantly, when the risk exceeds the tolerance threshold, timely adjustment of strategies by conditional cooperators is beneficial for maintaining high-level cooperation.</p>
Datapanel for Understanding Global Water Cooperation and Conflict Dynamics
<p>The panel forms the baseline for analysis of water-related cooperation and conflict events worldwide between 1951-2019. When the scientific paper is published, a link and reference will be added here.</p> <p>The panel includes events per country-year, socioeconomic variables per country-year, and climatic variables per basin-year or country-year depending on availability. The data for demographic, economic, and climatic variables used in this study were sourced from various international databases (see table) and were here merged into a country-year panel (see figure). Water cooperation and conflict event records include the year, geographic location, and countries involved in conflict and cooperation (Kåresdotter et al., 2022b). The socio-economic variables include World Development Indicators (WDI), available from 1960 as yearly values per country. Precipitation data were obtained from outputs of the Water Balance Model (WBM) as modeled by Kåresdotter et al., (2022a), and extracted as yearly mean values per hydrological basin from HydroBASINS level 6 used for Aqueduct water risk indicators (Hofste et al., 2019; World Resources Institute, 2023, 2019). A baseline water stress was used for water stress, i.e., a long-term chronic water stress measure defined as the ratio of total water withdrawal to available renewable surface and groundwater supply (Hofste et al., 2019). Regional classifications are based on the United Nations Statistics Division geographic regions (UN Statistics Division, n.d.). The input datasets were consolidated to reflect basin-level values for conflicts and cooperation events, instead of using country-level mean values.</p> <p><strong>Table 1. Summary of variables in the water cooperation and conflict panel</strong></p> <table> <tbody> <tr> <td> <p><strong>Variable</strong></p> </td> <td> <p><strong>Definition</strong></p> </td> <td> <p><strong>Unit</strong></p> </td> <td> <p><strong>Datasource</strong></p> </td> </tr> </tbody> <tbody> <tr> <td> <p>Event type</p> </td> <td> <p>Type of water-related event (conflict, cooperation, both, no event)</p> </td> <td> <p>Categorical (0 or 1)</p> </td> <td> <p>Kåresdotter et al., (2022b)</p> </td> </tr> <tr> <td> <p>Population density</p> </td> <td> <p>Number of people per unit area</p> </td> <td> <p>People per square km</p> </td> <td> <p>WDI</p> </td> </tr> <tr> <td> <p>Export</p> </td> <td> <p>Export metrics of the country</p> </td> <td> <p>USD</p> </td> <td> <p>WDI</p> </td> </tr> <tr> <td> <p>GDP per capita</p> </td> <td> <p>Economic output per person</p> </td> <td> <p>USD per person</p> </td> <td> <p>WDI</p> </td> </tr> <tr> <td> <p>Rural population</p> </td> <td> <p>Proportion of population in rural areas</p> </td> <td> <p>Percentage</p> </td> <td> <p>WDI</p> </td> </tr> <tr> <td> <p>Precipitation</p> </td> <td> <p>Amount of rainfall or precipitation</p> </td> <td> <p>Millimeters</p> </td> <td> <p>Created for Kåresdotter et al., (2022a)</p> </td> </tr> <tr> <td> <p>Water stress</p> </td> <td> <p>Baseline water stress</p> </td> <td> <p>Categorical (0 to 5)</p> </td> <td> <p> Aqueduct 3.0 (events up until 1984) and 4.0</p> </td> </tr> <tr> <td> <p>Coordinates</p> </td> <td> <p>Latitude and longitude of event</p> </td> <td> <p>Degree</p> </td> <td> <p>Kåresdotter et al., (2022b)</p> </td> </tr> <tr> <td> <p>Region</p> </td> <td> <p>Geographic region of event(s)</p> </td> <td> <p>Region</p> </td> <td> <p>UN Statistics Division</p> </td> </tr> <tr> <td> <p>Event text</p> </td> <td> <p>Text describing the conflict or cooperation event</p> </td> <td> <p>Event text</p> </td> <td> <p>Kåresdotter et al., (2022b)</p> </td> </tr> <tr> <td> <p>Year</p> </td> <td> <p>Year of observation</p> </td> <td> <p>Year</p> </td> <td> <p> </p> </td> </tr> </tbody> </table> <p> </p>
Structural equation modeling reveals determinants of fitness in a cooperatively breeding bird
<p>Even in well-studied organisms, it is often challenging to uncover the social and environmental determinants of fitness. Typically, fitness is determined by a variety of factors that act in concert, thus forming complex networks of causal relationships. Moreover, even strong correlations between social and environmental conditions and fitness components may not be indicative of direct causal links, as the measured variables may be driven by unmeasured (or unmeasurable) causal factors. Standard statistical approaches, like multiple regression analyses, are not suited for disentangling such complex causal relationships. Here, we apply structural equation modeling (SEM), a technique that is specifically designed to reveal causal relationships between variables, and which also allows to include hypothetical causal factors. Therefore, SEM seems ideally suited for comparing alternative hypotheses on how fitness differences arise from differences in social and environmental factors. We apply SEM to a rich data set collected in a long-term study on the Seychelles warbler (Acrocephalus seychellensis), a bird species with facultatively cooperative breeding and a high rate of extra-group paternity. Our analysis reveals that the presence of helpers has a positive effect on the reproductive output of both female and male breeders. In contrast, per capita food availability does not affect reproductive output. Our analysis does not confirm earlier suggestions on other species that the presence of helpers has a negative effect on the reproductive output of male breeders. As such, both female and male breeders should tolerate helpers in their territories, irrespective of food availability.</p>
Relaxation in supercooled liquids: Cooperatively Re–arranging Regions vs Excitations
<p>Data for the paper: Relaxation in supercooled liquids: Cooperatively<br> Re–arranging Regions vs Excitations</p> <p>The equilibrated coordinates of deeply supercooled liquids from which all further analysis is run are provided. Furthermore, the code for identification of excitations with one example file and result and the code for identifying strings are uploaded. </p> <p>The folder 'Experiments' contains the linked coordinates tracked from STED and confocal images.</p>
Cooperative Driving Dataset (CODD)
<p>The Cooperative Driving dataset (CODD) is a synthetic dataset generated using <a href="http://carla.org/">CARLA</a> that contains lidar data from multiple vehicles navigating simultaneously through a diverse set of driving scenarios. This dataset was created to enable further research in multi-agent perception (cooperative perception) including cooperative 3D object detection, cooperative object tracking, multi-agent SLAM and point cloud registration. Towards that goal, all the frames have been labelled with ground-truth sensor pose and 3D object bounding boxes.</p> <p>The data structure is described in the README.md file. More information on how to use and visualise the dataset is available in the github repository: <a href="https://github.com/eduardohenriquearnold/CODD">https://github.com/eduardohenriquearnold/CODD</a></p> <p> </p> <p> </p> <p> </p>
Supplementary Data: A peer-to-peer market mechanism incorporating multi-energy coupling and cooperative behaviors
<p>This dataset is the supplementary dataset for the case study used in the journal article (<a href="https://doi-org.tudelft.idm.oclc.org/10.1016/j.apenergy.2022.118572">https://doi.org/10.1016/j.apenergy.2022.118572</a>):</p> <p>A peer-to-peer market mechanism incorporating multi-energy coupling and cooperative behaviors</p> <p> </p> <p>Before using the dataset, please</p> <p>1. refer to the article for the details of the data used in the case study,</p> <p>2. read README.txt for the structure of the dataset.</p> <p> </p> <p>Please also kindly cite the journal article when using the dataset.</p>
Supplemental Material for Z. S. Cooper Dissertation Chapter 4 - Marinobacter Pangenomics
<p>This dataset contains main and supplemental data tables for a chapter of the doctoral dissertation by Zachary S. Cooper at the University of Washington School of Oceanography. The chapter is titled "Chapter 4: Evolutionary divergence of <em>Marinobacter </em>strains in cryopeg brines as revealed by pangenomics". Briefly, this chapter contains pangenomic analyses of novel genomes of the bacterial genus <em>Marinobacter</em> that are compared with representative species of the genus to discern evolutionary history and functional capabilities of this species in the extreme cryopeg environment. The main data tables include lists of genomes used in the analyses and their characteristics as described in the dissertation chapter. The supplemental data tables include gene cluster annotations with COGs (S1), functional frequencies across the pangenome (S2), functional enrichment analysis (S3), KEGG annotations (S4), KEGG pathway completion values (S5), average nucleotide identity values (S6), alignment coverage values (S7), and horizontal gene transfer analysis summaries (S8). The tables were produced from the combination of outputs of the bioinformatic programs Anvi'o, KEGG KofamKOALA, KEGG Decoder, PyANI, and HGTector2. Details on the methods and interpretations of this data are included in the dissertation.</p>
Data for "Emergent parametric resonances and time-crystal phases in driven Bardeen-Cooper-Schrieffer systems"
<p>These files contain the data for the article "Emergent parametric resonances and time-crystal phases in driven Bardeen-Cooper-Schrieffer systems" (https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.3.L042023). In each .zip file, it is possible to find not only the relevant data but also a script (.sh file extension) to generate each one of the 6 figures shown in the paper and Supplemental Material. The file "Phasediagram.zip" contains the data corresponding to the dynamical phase diagrams (Fig. 1). Here there are two separated folders with the data for the phase diagram of a parametric oscillator and a periodically driven Bardeen-Cooper-Schrieffer system. The data for the representative dynamics and Fourier Transforms outside and inside Arnold's tongues can be found in the files "DynamicsandFT_outsidetheArnoldtongues.zip" and "DynamicsandFT_insidetheArnoldtongues.zip" respectively. We have also included all the necessary data to reproduce the figures shown in the Supplemental Material in the files "robustness_timecrystal_and_timequasicrystal.zip", "Floquetspectrum_timecrystalregime.zip" and "phasediagram_differenttimewindows.zip". For all the .txt files inside the .zip files, we have added at the top of each column a brief description of the data recorded below. Some abbreviations have been used and read as follows: "wd" means drive frequency, "Delta" indicates the superconducting order parameter, and "\xi_k" means the quasiparticle energy.</p> <p> </p>
Coordination of care by breeders and helpers in the cooperatively breeding long-tailed tit, Aegithalos caudatus
<p><span>In species with biparental and cooperative brood care, multiple carers cooperate by contributing costly investment to raise a shared brood. However, shared benefits and individual costs also give rise to conflict among carers over investment. Coordination of provisioning visits has been hypothesized to facilitate the resolution of this conflict, preventing exploitation, and ensuring collective investment in the shared brood. We used a 26-year study of long-tailed tits, <em>Aegithalos caudatus</em>, a facultative cooperative breeder, to investigate whether care by parents and helpers is coordinated, whether there are consistent differences in coordination between individuals and reproductive roles, and whether coordination varies with helper relatedness to breeders. Coordination takes the form of turn-taking (alternation) or feeding within a short time interval of another carer (synchrony), and both behaviors were observed to occur more than expected by chance, i.e. 'active' coordination. First, we found that active alternation decreased with group size while active synchrony occurred at all group sizes. Secondly, we show that alternation was repeatable between observations at the same nest, while synchrony was repeatable between observations of the same individual. Active synchrony varied with reproductive status, with helpers synchronizing visits more than breeders, although active alternation did not vary with reproductive status. Finally, we found no significant effect of relatedness on either alternation or synchrony exhibited by helpers. In conclusion, we demonstrate active coordination of provisioning by carers and conclude that coordination is a socially plastic behavior depending on reproductive status and the number of carers raising the brood.</span></p>
FOODRUS Cooperation Map
<p>FOODRUS has built a Cooperation and Collaboration Network (CCN) with other projects and initiatives which have worked on, or are currently working in the field of food losses and food waste.</p> <p>With these projects FOODRUS aims to develop thematic discussions on tools and approaches for food loss and food waste prevention. Through these dedicated working groups project partners from the involved projects share experiences and lessons learnt and identify gaps and barriers as well as best practices for the transition towards a more sustainable food system.</p>
Two-sex integrated population model reveals intersexual differences in life history strategies in Cooper's Hawks
<p>This site contains data files and model code for a dynamic nesting territory occupance model and 2-sex integrated population model for Cooper's hawks in Albuquerque, New Mexico, USA, 2011 - 2020.</p>
Data and code from: Cooperation and coordination in heterogeneous populations
<p>One landmark application of evolutionary game theory is the study of social dilemmas. This literature explores why people cooperate even when there are strong incentives to defect. Much of this literature, however, assumes that interactions are symmetric. Individuals are assumed to have the same strategic options and the same potential payoffs. Yet many interesting questions arise once individuals are allowed to differ. Here, we study asymmetry in simple coordination games. In our setup, human participants need to decide how much of their endowment to contribute to a public good. If a group's collective contributions reach a pre-defined threshold, all group members receive a reward. To account for possible asymmetries, individuals either differ in their endowments or their productivities. According to our theoretical equilibrium analysis, such games tend to have many possible solutions. In equilibrium, group members may contribute the same amount, different amounts, or nothing at all. According to the behavioral experiment, however, humans favor the equilibrium in which everyone contributes the same proportion of their endowment. We use these experimental results to highlight the nontrivial effects of inequality on cooperation, and we discuss to which extent models of evolutionary game theory can account for these effects.</p>
A cooperative deep learning model for stock market prediction using deep autoencoder and sentiment analysis
<p>This data is used for Stock Market Prediction. </p>
Data from: Sex-dependent effects of parental age on offspring fitness in a cooperatively breeding bird
<p>Parental age can have considerable effects on offspring phenotypes and health. However, intergenerational effects may also have longer-term effects on offspring fitness. Few studies have investigated parental age effects on offspring fitness in natural populations while also testing for sex- and environment-specific effects. Further, longitudinal parental age effects may be masked by population-level processes such as the selective disappearance of poor-quality individuals. Here, we used multi-generational data collected on individually marked Seychelles warblers (<em>Acrocephalus</em> <em>sechellensis</em>) to investigate the impact of maternal and paternal age on offspring lifespan and lifetime reproductive success. We found negative effects of maternal age on female offspring lifespan and lifetime reproductive success, which were driven by within-mother effects. There was no difference in annual reproductive output of females born to older versus younger mothers, suggesting that the differences in offspring lifetime reproductive success were driven by effects on offspring lifespan. In contrast, there was no association between paternal age and female offspring lifespan or either maternal or paternal age and male offspring lifespan. Lifetime reproductive success, but not annual reproductive success, of male offspring increased with maternal age, but this was driven by between-mother effects. No paternal age effects were found on female offspring's lifetime reproductive success but there was a positive between-father effect on male offspring's lifetime reproductive success. We did not find strong evidence for environment-dependent parental age effects. Our study provides evidence for parental age effects on the lifetime fitness of offspring and shows that such effects can be sex-dependent. These results add to the growing literature indicating the importance of intergenerational effects on long-term offspring performance and highlight that these effects can be an important driver of variation in longevity and fitness in the wild.</p>
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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.