cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5061/dryad.dr7sqvb0z
title: How 2 and 4 year old children coordinate joint actions with peers

description: The interaction engine hypothesis postulates a uniquely human ability and
 motivation for social interaction. A crucial juncture in the ontogeny of
 the interaction engine could be around 2-4 years of age, but observational
 studies of children in natural contexts are lacking. Moreover, data on the
 ontogenetic development of joint action coordination can provide critical
 human data for comparative research investigating the phylogenetic roots
 of the interaction engine. In this study we report on focal observations
 on 31 children aged 2 and 4 years old in 4 preschools (approximately 20h
 per child). Interactions were videotaped, transcribed and coded for the
 presence and duration of joint actions, their type (e.g., play, conflict)
 and the partners involved, as well as the presence and duration of entry,
 exit and main body phases of those joint actions. Children interact with a
 wide range of partners, many infrequently, but with one or two close
 friends. 4 year olds engage in cooperative joint actions more often than 2
 year olds, and fight less than 2 year olds. Conversations and playing with
 objects are the most frequent action types. Joint actions are relatively
 brief (28s on average) and shorter than those of great apes in comparable
 studies. Their joint actions feature entry and exit phases about
 two-thirds of the time, less frequently than great apes. However, children
 interact with many more partners than great apes do, about 20% of their
 joint actions are multiparty and overall they engage in joint actions more
 frequently than great apes (on average 13 distinct joint actions per
 hour). The results support the interaction engine hypothesis, suggesting
 that, at a very young age humans already manifest a remarkable motivation
 and ability for fast-paced, flexible social interaction with multiple
 partners.
DOI: 10.5061/dryad.gqnk98spt
title: Life stage and taxonomy the most important factors determining vertebrate stoichiometry: A meta-analysis

description: 1. Whole-body elemental composition is a key trait for determining how
 organisms influence their ecosystems. Using mass-balance, ecological
 stoichiometry predicts that animals with higher concentrations of element
 X will selectively retain more X and will recycle less X in their waste
 than animals with lower X concentrations. These animals will also store
 high quantities of X during their lives and after their deaths (prior to
 full decomposition). 2. Vertebrates may uniquely impact nutrient cycling
 because they store high quantities of phosphorus (P) in their bones.
 However, vertebrates have diverse body forms and invest variably in bone.
 Current analyses of vertebrate elemental content predominately evaluate
 fishes, typically neglecting other vertebrates and leaving much of the
 diversity unexplored. 3. We performed a systematic review and identified
 179 measurements of whole-body percent phosphorus (%P), percent nitrogen
 (%N), and N to P ratio (N:P) from 129 unique species of non-fish
 vertebrates (amphibians: 39 species; reptiles: 19 species; birds: 27
 species; mammals: 46 species) 4. We found that %P (mean: 1.94%; sd
 (standard deviation) = 0.77) and N:P (mean: 12.52) varied with taxonomy
 and life stage, while %N (mean: 10.51%; sd = 3.25) varied primarily with
 taxonomy. Habitat, diet, and size had small and inconsistent effects in
 different groups. 5. Our study highlights two research gaps. Life stage,
 which is frequently neglected in stoichiometric studies, is an important
 factor determining vertebrate %P. Furthermore, amphibians dominate our
 dataset, while other vertebrate taxa are poorly represented in the current
 literature. Further research into these neglected vertebrate taxa is
 essential.
description: See manuscript for details on meta-analysis methodology.
description: I have included an excel file with citations for each paper I
 extracted data from. Note that meta-data are included in our
 spreadsheets.
DOI: 10.7291/d16m46
title: Demographic response to light environment of all species in the Barro Colorado plot: recruitment, growth, and mortality

description: We measured growth, death, and recruitment of 250,000 individual trees of
 300 species in the Barro Colorado 50-ha plot in Panama. To understand how
 light limits demography, we also carried out a detailed map of the light
 environment across the 50 hectares, providing an estimate of the light at
 the top of every tree in the plot (Rüger et al. 2009, 2011ab, 2012, 2018,
 2020). These tables combine results from the three main studies on the
 demographic responses of tree species to light, covering recruitment,
 growth, and mortality. Each study was based on rigorous statistical
 estimates of demographic rate parameters as a function of available light
 across most species in the forest. The model parameters provided here
 allow demographic rates of every species to be estimated under any light
 condition, and at any diameter, for example, growth rate of 5-cm trees in
 3% light, or death rate of 2-cm trees in 10% light. Most useful is a
 single table that provides estimated responses in a consistent way across
 all species covering recruitment, growth, and mortality. The response is
 defined as the ratio of species performance at high light to performance
 at low light, and thus describes how every species responds to increase in
 light caused by treefall gaps in the canopy. These response parameters
 offer comprehensive demographic traits on more than 90% of the species in
 the forest. The references provide context and describe the models in
 detail. References: Condit, R., 1998. Tropical Forest Census Plots:
 Methods and Results from Barro Colorado Island, Panama and a Comparison
 with Other Plots. Springer-Verlag, Berlin. Rüger, N., A. Huth, S.P.
 Hubbell, and R. Condit. 2009. Response of recruitment to light
 availability across a tropical lowland rainforest community. Journal of
 Ecology 97: 1360–1368. Rüger, N., U. Berger, S.P. Hubbell, G. Vieilledent,
 and R. Condit. 2011a. Growth strategies of tropical tree species:
 Disentangling light and size effects. PLoS ONE 6(9): e25330. Rüger, N., A.
 Huth, S.P. Hubbell, and R. Condit. 2011b. Determinants of mortality across
 a tropical lowland rainforest community. Oikos 120: 1047–1056. Rüger, N.,
 C. Wirth, S.J. Wright, and R. Condit. 2012. Functional traits explain
 light and size response of growth rates in tropical tree species. Ecology
 93: 2626–2636. Rüger, N., L. S. Comita, R. Condit, D. Purves, B.
 Rosenbaum, M. D. Visser, S. J. Wright, and C. Wirth. 2018. Beyond the
 fast–slow continuum: demographic dimensions structuring a tropical tree
 community. Ecology Letters 21:1075–1084. Rüger, N., R. Condit, D. H. Dent,
 S. J. DeWalt, S. P. Hubbell, O. R. Lopez, C. Wirth, and C. E. Farrior.
 2020. Demographic trade-offs predict tropical forest dynamics. Science
 368:165–168.
description: See Condit (1998) and Rüger et al. (2009)
description: Download README.pdf for descriptions of the tables and equations
 needed to calculate predicted demographic rates.
DOI: 10.5061/dryad.g4f4qrfs5
title: Performance and social connection data for baseball and basketball from 2001 to 2020

description: We examine whether social data can be used to predict how members of Major
 League Baseball (MLB) and members of the National Basketball Association
 (NBA) transition between teams during their career. We find that
 incorporating social data into various machine learning algorithms
 substantially improves the algorithms' ability to correctly determine
 these transitions in the NBA but only marginally in MLB. We also measure
 the extent to which player performance and team fitness data can be used
 to predict transitions between teams. This data, however, only slightly
 improves our predictions for players for both basketball and baseball
 players. We also consider whether social, performance, and team fitness
 data can be used to infer past transitions. Here we find that social data
 significantly improves our inference accuracy in both the NBA and MLB but
 player performance and team fitness data again does little to improve this
 score.
description: Performance data was scraped from
 www.basketball-reference.com/leagues and
 www.baseball-reference.com/leagues using Python and Beautiful Soup both of
 which are packages used to extract data from htmls. Since we looked at
 historical data and used appropriate crawl delays, we met the scraping
 terms defined in the robots.txt file for both sites. The Twitter data was
 collected using the Twitter API. First, we scraped the
 Twitter usernames for each player listed on
 www.baseball-reference.com/friv/baseball-player-twitter-accounts.shtml and
 www.basketball reference.com/friv/twitter.html. Then
 using tweepy, a python package for connecting to the Twitter API, we were
 able to collect the Twitter IDs of the other MLB/NBA players that each
 player followed. We chose to look at those ``followed" instead of
 those ``following" because it significantly sped up the data
 collection process. By using the Twitter API and tweepy, we were able to
 follow all necessary protocols, including rate limits and only accessing
 publicly available information.
DOI: 10.5061/dryad.37pvmcvmv
title: Analysis of potential earthquake precursory pattern from Mw&gt;=7.0 earthquakes in Mexico

description: In this work, we study seismic precursors from air temperature data of the
 National Center for Environmental Prediction (NCEP), Global Navigation
 Satellite System (GNSS) based Total Electron Content (TEC) and electron
 density retrieved from Swarm satellite (Alpha) data in Mw&gt;=7.0
 earthquakes in Mexico. The spatial-temporal evolution of seismic
 thermal anomalies is explored through NCEP, and synergistic
 observations of Swarm satellite and GNSS station are capable of providing
 more comprehensive information about disturbances in ionosphere. Our study
 may help explain the lithosphere-atmosphere-ionosphere coupling before
 earthquakes.
DOI: 10.5061/dryad.mpg4f4r23
title: Comparison of mitogenomes of three Petalocephala species (Hemiptera: Cicadellidae: Ledrinae) and their phylogenetic analysis

description: Ledrinae is an ancient group of leafhoppers with a unique
 appearance. Petalocephala is the largest Ledrinae genus that is
 difficult to identify except by dissecting the male genitals. To date,
 research on Ledrinae is relatively less compared with other leafhoppers.
 Therefore, to better understand this group, we sequenced and analyzed
 three complete Petalocephala mitochondrial genomes. We comparatively
 analyzed these general Petalocephala genomic features (including size, AT
 content, AT/GC skew, 13 protein-coding gene nucleotide compositions,
 etc.), and predicted 22 tRNA secondary structures. 
description: The three datasets (PCG12: nucleotides of the first and second
 codon of 13 PCGs, PCG12rRNA: nucleotides of the first and second codon of
 13 PCGs and 2 rRNAs, and AA: amino acid sequences of 13 PCGs) were used to
 analyze the phylogenetic relationships within Ledrinae.
description: # Comparison of mitogenomes of three Petalocephala species (Hemiptera:
 Cicadellidae: Ledrinae) and their phylogenetic analysis
 The sequences of the 13
 PCGs and 2 rRNAs were used to analyze the phylogenetic relationships
 within leafhoppers. The PCGs and rRNA genes were initially aligned using
 the MAFFT algorithm, respectively (Katoh et al., 2017; Abascal et al.,
 2010), and poorly aligned positions were then eliminated using Gblocks
 9.1b with the default settings (Katoh et al., 2017; Talavera et al.,
 2007). Finally, MEGA 7.0 software was used to concatenate gene sequences
 and select their positions to form different datasets. The third codon
 positions might suffer from mutation saturation, potentially leading to
 noise in the phylogenetic analysis (Blouin et al., 1998; Breinholt &
 Kawahara, 2013). The three datasets (PCG12: nucleotides of the first and
 second codon of 13 PCGs, PCG12rRNA: nucleotides of the first and second
 codon of 13 PCGs and 2 rRNAs, and AA: amino acid sequences of 13 PCGs)
 were used to analyze the phylogenetic relationships within Ledrinae.
DOI: 10.5061/dryad.0zpc86703
title: A genome for Bidens hawaiensis: a member of a hexaploid Hawaiian plant adaptive radiation

description: Abstract The plant genus Bidens (Asteraceae or Compositae; Coreopsidae) is
 a species-rich and circumglobally distributed taxon. The 19 hexaploid
 species endemic to the Hawaiian Islands are considered an iconic example
 of adaptive radiation, of which many are imperiled and of high
 conservation concern. Until now, no genomic resources were available for
 this genus, which may serve as a model system for understanding the
 evolutionary genomics of explosive plant diversification. Here, we present
 a high-quality reference genome for the Hawai‘i Island endemic species B.
 hawaiensis A. Gray reconstructed from long-read, high-fidelity sequences
 generated on a Pacific Biosciences Sequel II System. The haplotype-aware,
 draft genome assembly consisted of ~6.67 Giga bases (Gb), close to the
 holoploid genome size estimate of 7.56 Gb (± 0.44 SD) determined by flow
 cytometry. After removal of alternate haplotigs and contaminant filtering,
 the consensus haploid reference genome was comprised of 15,904 contigs
 containing ~3.48 Gb, with a contig N50 value of 422,594. The high
 interspersed repeat content of the genome, approximately 74%, along with
 hexaploid status, contributed to assembly fragmentation. Both the
 haplotype-aware and consensus haploid assemblies recovered &gt;96% of
 Benchmarking Universal Single-copy Orthologs. Yet, the removal of
 alternate haplotigs did not substantially reduce the proportion of
 duplicated benchmarking genes (~79% versus ~68%). This reference genome
 will support future work on the speciation process during adaptive
 radiation, including resolving evolutionary relationships, determining the
 genomic basis of trait evolution, and supporting ongoing conservation
 efforts.
description: <em>Bidens hawaiensis </em>primary and alternate
 contigs were assembled from long-read, high-fidelity sequences generated
 on a Pacific Biosciences Sequel II System using two 8M SMRT cells. The
 organelle contigs (chloroplast and mitochondria) in this repository were
 identified for each primary and alternate contig dataset. Organelle
 contigs were identified using a combination of Mitofinder v 1.4, nucmer
 implemented in the MUMmer package (mummer-4.0.0beta2), and read-depth
 coverage output from PurgeDups. For mitofinder and nucmer alignments we
 used references <em>Helianthus annuus</em> (mitochondria, NCBI
 accession NC_023337.1) and <em>B. hawaiensis</em>
 (chloroplast, NCBI accession NC_047259). The
 Repeat-Masker files were generated using Repeat Modeler v2, RECON v. 1.08,
 Repeat-Masker version open-4-1-1, and Dfam v3.3 (download date
 2020-11-09). Searches were implemented using RMBlastN 2.10.0.
 Additional details are available in association with the
 manuscript.
DOI: 10.5061/dryad.tx95x6b0f
title: Chickpea flowering, carbon isotope, seed weight in a factorial of 20 genotypes and 8 environments

description: Chickpea was phenotyped for time to flowering, carbon isotope composition
 at peak biomass, and seed weight at maturity in a factorial combining 20
 genotypes, 2 sowing dates, 2 sowing regimes over two seasons. 
description: A field experiment was established on a calcic luvisol at
 Roseworthy, South Australia (34<sup>o</sup> 52' S,
 138<sup>o</sup> 69'E) that combined factorially 20
 genotypes, two water regimes (dry, rainfed; wet, sprinkler irrigated), and
 two sowing times (early, early June; late, early-mid July). The experiment
 was repeated twice over successive seasons. Treatments were laid out in a
 split-split-plot design with three replicates, where sowing time was
 assigned to the main plot, water regime to the sub-plot, and genotypes
 randomised within each plot. Each plot comprised 6 rows, 0.24 m appart,
 5-m long. We scored phenology weekly to establish the time to 50% of
 plants at beginning of flowering and calculated thermal time from sowing
 to flowering using a base temperature of 0 <sup>o</sup>C. To
 quantify crop water status, we measued carbon isotope composition at peak
 biomass, shortly after flowering using the method in Journal of
 Experimental Botany 67: 4339-4351. Seed weight was measured at maturity
 after drying and threshing 2-m<sup>2</sup> plant
 samples.
description: Missing values: flowering (1 out of 480), seed weight (20 out of
 480), carbon isotope (21 out of 480).
DOI: 10.5281/zenodo.18399359
title: Replication package for: College, cognitive ability, and socioeconomic disadvantage: policy lessons from the UK in 1960-2004

description: Replication package for: Ichino, Rustichini, and Zanella (2026), "College, cognitive ability, and socioeconomic disadvantage: policy lessons from the UK in 1960-2004." Review of Economic Studies. The package contains Stata, Matlab, and R programs to replicate the results in the article. The data used in the article are publicly available and freely accessible to any researcher. The raw data files downloaded from these public sources should be placed in the appropriate folders as described in the README file inside the package.
DOI: 10.7280/d1311z
title: Variability in terrestrial litter decomposition can be explained by nutrient allocation strategies among soil decomposer communities

description: 1. Leaf litter decomposition is a key process for nutrient cycling with
 broad ecosystem-level consequences. However, we still cannot explain an
 important amount of the observed variability in decomposition rates.
 Therefore, a mechanistic model of how litter quality impacts the metabolic
 capacity of microbial decomposers to degrade litter at a given rate could
 improve our understanding of litter decomposition. 2. Elemental imbalances
 between leaf litter and microbial decomposers can lead to nutrient-limited
 decomposition. Microbial decomposers can deal with elemental imbalances
 via three main physiological mechanisms; by adjusting their carbon use
 efficiency (i.e., the proportion of assimilated carbon that is not
 respired), accumulating nitrogen, or adjusting extracellular enzyme
 allocation between carbon (C) and nitrogen (N). Therefore, decomposer
 communities that adjust to elemental imbalances using these strategies
 should decompose litter faster than those unable to adjust. 3. In this
 study, in a reciprocal transplant microcosm, we experimentally evaluated
 whether differences in the capacity of decomposers to reduce elemental
 imbalances help explain variability in decomposition rates. We used litter
 and soils from three co-existing woody species with contrasting litter
 C:N. Throughout the decomposition experiment, we quantified litter biomass
 loss, the allocation to β-1,4-glucosidase and β-N-acetylglucosaminidase
 (i.e., C and N degrading enzymes), and N accumulation. These data allowed
 us to identify the main strategies through which decomposers deal with
 elemental imbalances and their concomitant effects on litter decomposition
 rates. 4. Our results confirm that litter decomposition rates are strongly
 controlled by litter quality, but differences in decay rates are a
 function of C and N demands of decomposers. Here, decomposers dealt with
 elemental imbalances mainly through N accumulation and, to a lesser
 extent, through extracellular enzyme allocation and lower carbon use
 efficiency. However, when enzymatic allocation and N accumulation were
 insufficient to reduce elemental imbalances, decomposition rates were
 slower, irrespective of litter quality. Finally, we show that the
 effectiveness of physiological strategies used by decomposers to reduce
 elemental imbalances will affect decomposition rates, a key ecosystem
 process.
DOI: 10.5281/zenodo.17375332
title: Replication package for: College, cognitive ability, and socioeconomic disadvantage: policy lessons from the UK in 1960-2004

description: Replication package for: Ichino, Rustichini, and Zanella (2026), "College, cognitive ability, and socioeconomic disadvantage: policy lessons from the UK in 1960-2004." Review of Economic Studies. The package contains Stata, Matlab, and R programs to replicate the results in the article. The data used in the article are publicly available and freely accessible to any researcher. The raw data files downloaded from these public sources should be placed in the appropriate folders as described in the README file inside the package.
DOI: 10.5061/dryad.w9ghx3fr4
title: Verification of the accuracy of the recent 50 years of tree growth and long-term change in intrinsic water-use efficiency using xylem Δ14C and δ13C in trees in an aseasonal tropical rainforest

description: Growth analysis based on tree-ring chronology is difficult in trees in
 aseasonal tropical rain forests, because annual growth rings may be
 unclear or completely absent. Fortunately, tree growth history recorded in
 xylem tissue is capable of providing valuable information on the responses
 of trees and forests to past and present environmental changes, including
 global warming. We have developed a new technique for aseasonal tropical
 forest trees which derives their growth rates from xylem Δ14C, and
 verified its accuracy. We also determined, from xylem δ13C, the intrinsic
 water-use efficiency (iWUE) in the past 50 years. We analyzed changes in
 xylem Δ14C and δ13C in 23 canopy trees of 12 species in 6 families growing
 in Pasoh Forest Reserve, Malaysia; each stem diameter at breast height
 (DBH) was recorded 14 times from 1969 to 2011. We found a significant
 positive relationship between the growth rates determined by 14C dating
 and the past DBH data. On the other hand, leaf-internal CO2 (Ci) content
 did not change with increasing atmospheric CO2 (Ca). Thus, the iWUE
 increased significantly over the last 50 years in all the families and
 species tested. This study showed that the simultaneous measurements of
 xylem Δ14C and δ13C could reveal a long-term change in tree growth and
 iWUE during the past 50 years with high accuracy in various species and/or
 individuals in aseasonal tropical rainforests exhibiting high species
 diversity.
DOI: 10.5061/dryad.c59zw3r8z
title: Data from: Thicker shells reduce copepod grazing on diatoms

description: The diatom frustule provides partial protection against copepods, yet we
 do not know the mechanism behind the reduced grazing. We used direct
 observations of copepod-diatom interactions to compare rejection frequency
 and prey-handling times of diatoms with different degrees of silica
 content in three differently sized species.  We compared
 rejection frequency and prey-handling times of thick- and thin-shelled
 cells of the diatoms Cyclotella cryptica, Thalassiosira
 weissflogii, and Ditylum brightwellii. We found that for
 all three species, that thick-shelled cells were more frequently rejected
 by the copepods subsequent to being captured.  The copepod
 prey-handling times, i.e., the time from the copepod reacted to the prey
 until it had been ingested or rejected, generally increased with prey
 size. We further found that thicker-shelled cells in the two larger
 species, T. weissflogii and D. brightwellii,
 were handled for so long that the copepods lose time for foraging. Both of
 these mechanisms have implications for carbon sequestration and for
 securing a large seed population at depth, and may be why many diatoms are
 able to form blooms even in the presence of dense grazer
 populations. 
description: Please see Methods in accompanying manuscript for details.