cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.15223381
title: The catalogs for the paper ''Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-PAYNE''

description: An updated catalog of stellar labels derived from LAMOST low-resolution spectra in a physics-sensible and rigorous manner with DD-PAYNE, taking labels from high-resolution spectroscopy as training set. The catalog contains atmospheric parameters for 6.4 million stars released in LAMOST DR9, and abundances for 22 elements, namely, C, N, O, Na, Mg, Al, Si, Ca, Ti, Cr, Mn, Fe, Ni, Sr, Y, Zr, Ba, La, Ce, Nd, Sm, and Eu, for nearly 3.6 million stars with spectral signal-to-noise ratio (SNR) higher than 20. Homogenization to the label estimates is carried out via dedicated internal and external calibration. The elemental abundances are internally calibrated using wide binaries, eliminating systematic trend with effective temperature. Both the recommended catalog and the elemental abundances without calibrations are in .FITS format. Size of the recommended catalog is 3.4 GB, and that of the abundances catalog without calibration is about 1.0 GB.
description: The  recommended catalog in FITS format contains the following fields 




Column
Field name
Description


1
SPECID
LAMOST spectral ID, in fomat of obsdate-planid-spectrographid-fiberid


2
RA
Right ascension from the LAMOST catalog (deg; J2000)


3
Dec
Declination from the LAMOST catalog (deg; J2000)


4
UNIQFLAG
Flag of the repeat visit spectra, 1 means unique star; >1 means repeat visits


5
S/N_u/g/r/i/z
median spectral signal-to-noise ratios in u/g/r/i/z bands


6
Teff
Effective temperature (K)


7
Teff_err
Uncertainty in Teff (K)


8
log g
Surface gravity


9
log g_err
Uncertainty in log g


10
[Fe/H]
 Iron abundance


11
[Fe/H]_LTE


Iron abundance without NLTE correction



12
[Fe/H]_err
Uncertainty in [Fe/H]


13
[X/Fe]
Element-to-iron abundance ratio of the recommended values


14
[X/Fe]_err
Uncertainty in [X/Fe] (dex)


15
Vmic
Micro-turbulent velocity (km/s)


16
Vmic_err
Uncertainty in Vmic (km/s)


17
Chisq_LAM_APO  
The chi^2 of the spectral fit using LAMOST-APOGEE training set


18
Chisqflag_LAM_APO
A quality flag describing the chi^2 of the spectral fit using LAMOST-APOGEE training set, the smaller the better


19
Chisq_LAM_GAL
The chi^2 of the spectral fit using LAMOST-GALAH training set


20
Chisqflag_LAM_GAL
A quality flag describing the chi^2 of the spectral fit using LAMOST-GALAH training set, the smaller the better


21
Flag_X_Fe
 A flag describing the X_Fe estimation quality based on the adopted training set


22
Chisq_X
The chi^2 of the spectral fit using different training sets






 
description: The abundances catalog without calibration in FITS format contains the following fields 




Column
Field name
Description


1
SPECID
LAMOST spectral ID, in fomat of obsdate-planid-spectrographid-fiberid


2


[X/Fe]_uncali



Element-to-iron abundance ratio without correcting for the trend with Teff
DOI: 10.14288/1.0397581
title: Data from: Genetic admixture and heterosis may enhance the invasiveness of common ragweed

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Biological invasions are often associated with multiple introductions and genetic admixture of previously isolated populations. In addition to enhanced evolutionary potential through increased genetic variation, admixed genotypes may benefit from heterosis, which could contribute to their increased performance and invasiveness. To deepen our understanding of the mechanisms and management strategies for biological invasions, we experimentally studied whether intraspecific admixture causes heterosis in common ragweed (Ambrosia artemisiifolia) by comparing the performance of crosses (F1) between populations relative to crosses within these populations for each range (native, introduced) under different ecologically relevant conditions (control, drought, competition, simulated herbivory). Performance of admixed genotypes was highly variable, ranging from strong heterotic effects to weak outbreeding depression. Moreover, heterosis was not uniformly observed among between-population crosses, but certain native population crosses showed considerable heterosis, especially under simulated herbivory. In contrast, heterosis was largely absent in crosses from the introduced range, possibly implying that these populations were already admixed and benefit little from further mixing. In conclusion, these results support the hypothesis that heterosis may contribute to biological invasions, and indicate the need to minimize new introductions of exotic species, even if they are already present in the introduced range.
DOI: 10.14288/1.0397582
title: Data from: Acceleration and novelty: community restoration speeds recovery and transforms species composition in Andean cloud forest

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Community-based tropical forest restoration projects, often promoted as a win-win solution for local communities and the environment, have increased dramatically in number in the past decade. Many such projects are underway in Andean cloud forests, which, given their extremely high biodiversity and history of extensive clearing, are understudied. This study investigates the efficacy of community-based tree-planting projects to accelerate cloud forest recovery, as compared to unassisted natural regeneration. This study takes place in northwest Andean Ecuador, where the majority of the original, highly diverse cloud forests have been cleared, in five communities that initiated tree-planting projects to restore forests in 2003. In 2011, we identified tree species along transects in planted forests (n = 5), naturally regenerating forests (n = 5), and primary forests (n = 5). We also surveyed 120 households about their restoration methods, tree preferences, and forest uses. We found that tree diversity was higher in planted than in unplanted secondary forest, but both were less diverse than primary forests. Ordination analysis showed that all three forests had distinct species compositions, although planted forests shared more species with primary forests than did unplanted forests. Planted forests also contained more animal-dispersed species in both the planted canopy and in the unplanted, regenerating understory than unplanted forests, and contained the highest proportion of species with use value for local people. While restoring forest increased biodiversity and accelerated forest recovery, restored forests may also represent novel ecosystems that are distinct from the region's previous ecosystems and, given their usefulness to people, are likely to be more common in the future.
DOI: 10.14288/1.0397588
title: Data from: Resources alter the structure and increase stochasticity in bromeliad microfauna communities

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Although stochastic and deterministic processes have been found to jointly shape structure of natural communities, the relative importance of both forces may vary across different environmental conditions and across levels of biological organization. We tested the effects of abiotic environmental conditions, altered trophic interactions and dispersal limitation on the structure of aquatic microfauna communities in Costa Rican tank bromeliads. Our approach combined natural gradients in environmental conditions with experimental manipulations of bottom-up interactions (resources), top-down interactions (predators) and dispersal at two spatial scales in the field. We found that resource addition strongly increased the abundance and reduced the richness of microfauna communities. Community composition shifted in a predictable way towards assemblages dominated by flagellates and ciliates but with lower abundance and richness of algae and amoebae. While all functional groups responded strongly and predictably to resource addition, similarity among communities at the species level decreased, suggesting a role of stochasticity in species-level assembly processes. Dispersal limitation did not affect the communities. Since our design excluded potential priority effects we can attribute the differences in community similarity to increased demographic stochasticity of resource-enriched communities related to erratic changes in population sizes of some species. In contrast to resources, predators and environmental conditions had negligible effects on community structure. Our results demonstrate that bromeliad microfauna communities are strongly controlled by bottom-up forces. They further suggest that the relative importance of stochasticity may change with productivity and with the organizational level at which communities are examined.
DOI: 10.14288/1.0397589
title: Data from: Phylogenetic placement of the unusual jumping spider Depreissia Lessert, and a new synapomorphy uniting Hisponinae and Salticinae (Araneae, Salticidae)

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;The relationships of the unusual salticid spider Depreissia from central Africa and Borneo have been difficult to resolve, obscured by its highly modified ant-like body. Phylogenetic analysis of the gene 28S strongly supports its placement outside the major clade Salticinae and within the clade of cocalodines, spartaeines and lapsiines, with weaker support for a relationship with the cocalodines in particular. Excluding the genus from the Salticinae is supported also by the presence of a median apophysis on the male palp, and by the lack of a cymbial apical groove cradling the tip of embolus, which is newly presented here as a synapomorphy of Hisponinae plus Salticinae.
DOI: 10.14288/1.0397590
title: Data from: Growth gains from selective breeding in a spruce hybrid zone do not compromise local adaptation to climate

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Hybrid zones contain extensive standing genetic variation that facilitates rapid responses to selection. The Picea glauca x P. engelmannii hybrid zone in western Canada is the focus of tree breeding programs that annually produce ~90 million reforestation seedlings. Understanding the direct and indirect effects of selective breeding on adaptive variation is necessary to implement assisted gene flow polices in Alberta and British Columbia that match these seedlings with future climates. We decomposed relationships among hybrid ancestry, adaptive traits and climate to understand the implications of selective breeding for climate adaptations and assisted gene flow strategies. The effects of selection on associations among hybrid index estimated from ~6500 SNPs, adaptive traits, and provenance climates were assessed for ~2400 common garden seedlings. Hybrid index differences between natural and selected seedlings within breeding zones were small in Alberta (average +2%), but larger and more variable in BC (average -7 %, range -24% to +1%), slightly favoring P. glauca ancestry. The average height growth gain of selected seedlings over natural seedlings within breeding zones was 36% (range 12% to 86%). Clines in growth with temperature-related variables were strong, but differed little between selected and natural populations. Seedling hybrid index and growth trait associations with evapotranspiration-related climate variables were stronger in selected than in natural seedlings, indicating possible pre-adaptation to drier future climates. Associations among cold hardiness, hybrid ancestry and cold-related climate variables dominated signals of local adaptation that were preserved in breeding populations. Strong hybrid ancestry-phenotype-climate associations suggest that assisted gene flow will be necessary to match interior spruce breeding populations with shifting future climates. The absence of antagonistic selection responses among traits and maintenance of cold adaptation in selected seedlings suggests breeding populations can be safely redeployed using assisted gene flow prescriptions similar to those of natural populations.
DOI: 10.14288/1.0397591
title: Data from: Stark sexual display divergence among jumping spider populations in the face of gene flow

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Gene flow can inhibit evolutionary divergence by eroding genetic differences between populations. A current aim in speciation research is to identify conditions in which selection overcomes this process. We focused on a state of limited differentiation, asking whether selection enables divergence with gene flow in a set of Habronattus americanus jumping spider populations that exhibit three distinct male sexual display morphs. We found that each population is at high frequency or fixed for a single morph. These strong phenotypic differences contrast with low divergence at 210 AFLP markers, suggesting selection has driven or maintains morph divergence. Coinciding patterns of isolation by distance and ‘isolation by phenotype’ (i.e. increased genetic divergence among phenotypically contrasting populations) across the study area support several alternative demographic hypotheses for display divergence, each of which entails gene flow. Display-associated structure appears broadly distributed across the genome and the markers producing this pattern do not stand out from background levels of differentiation. Overall, the results suggest selection can promote stark sexual display divergence in the face of gene flow among closely related populations.
DOI: 10.14288/1.0397592
title: Data from: An experimental test of the mutation-selection balance model for the maintenance of genetic variance in fitness components

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Despite decades of research, the factors that maintain genetic variation for fitness are poorly understood. It is unclear what fraction of the variance in a typical fitness component can be explained by mutation-selection balance and whether fitness components differ in this respect. In theory, the level of standing variance in fitness due to mutation-selection balance can be predicted using the rate of fitness decline under mutation accumulation, and this prediction can be directly compared to the standing variance observed. This approach allows for controlled statistical tests of the sufficiency of the mutation-selection balance model, and could be used to identify traits or populations where genetic variance is maintained by other factors. For example, some traits may be influenced by sexually-antagonistic balancing selection, resulting in an excess of standing variance beyond that generated by deleterious mutations. We describe the underlying theory and use it to test the mutation-selection balance (MSB) model for three traits in Drosophila melanogaster. We find evidence for differences among traits, with MSB being sufficient to explain genetic variance in larval viability but not male mating success or female fecundity. Our results are consistent with balancing selection on sexual fitness components, and demonstrate the feasibility of rigorous statistical tests of the mutation-selection balance model.
DOI: 10.15468/dl.x9vv8h
title: Occurrence Download

description: A dataset containing 891 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Drosophila willistoni Sturtevant, 1916"
 ]
}

 The dataset includes 891 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000457-250424135625364/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.14288/1.0397593
title: Data from: Gene expression and drought response in an invasive thistle

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Though rapid phenotypic evolution has been observed in many invasive plant species, less is known about the associated genetic mechanisms. Some hypotheses invoke the evolution of trade-offs in resource allocation to explain phenotypic differences between the native and invaded ranges of a species. Alternately, invasive species may benefit from a generalist strategy and perform well in many environments. Identification of the molecular changes associated with successful invasions can offer clues regarding the mechanistic basis of such hypotheses, even in non-model organisms. To complement studies of phenotypic variation, we investigate gene expression during drought response that might underlie variation in drought tolerance between native and introduced populations of diffuse knapweed (Centaurea diffusa), and possibly contribute to invasion success. Using species-specific microarrays and tissue sampled under drought and control conditions at three time points, we identified genes whose expression either varied constitutively or responded to drought stress differently between ranges. Further, we functionally investigate these genes. Based on these data, invasive populations have constitutively higher levels of expression relating to energy production and lower levels of signal transduction expression relative to native populations. Under drought conditions, invasive populations may maintain energy production and react less strongly to drought than native populations, which may allow them to maintain fitness across moderate environmental variation. This supports the expectation of invasive populations consisting of generalist genotypes capable of fitness homeostasis, which may have facilitated the successful invasion of many environments in North America.
DOI: 10.14288/1.0397595
title: Data from: Climate change impacts on marine biodiversity, fisheries and society in the Arabian Gulf

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Climate change - reflected in significant environmental changes such as warming, sea level rise, shifts in salinity, oxygen and other ocean conditions - is expected to impact marine organisms and associated fisheries. This study provides an assessment of the potential impacts on, and the vulnerability of, marine biodiversity and fisheries catches in the Arabian Gulf under climate change. To this end, using three separate niche modelling approaches under a 'business-as-usual' climate change scenario, we projected the future habitat suitability of the Arabian Gulf for 55 expert-identified priority species, including charismatic and non-fish species. Second, we conducted a vulnerability assessment of national economies to climate change impacts on fisheries. The modelling outputs suggested a high rate of local extinction (up to 35% of initial species richness) by 2090 relative to 2010. Spatially, projected local extinctions are highest in the southwestern part of the Arabian Gulf, off the coast of Saudi Arabia, Qatar and the United Arab Emirates (UAE). While the projected patterns provided useful indicators of climate change impacts on the region's diversity, the magnitude of changes in habitat suitability are more uncertain. Fisheries-specific results suggested reduced future catch potential for several countries on the western side of the Arabian Gulf, with projections differing only slightly between models. Qatar and the UAE were particularly affected, with more than a 26% drop in future fish catch potential. Integrating changes in catch potential with socio-economic indicators suggested the fisheries of Bahrain and Iran may be most vulnerable to climate change. We discuss limitations of the indicators and the methods used, as well as the implications of our overall findings for conservation and fisheries management policies in the region.
DOI: 10.14288/1.0397596
title: Data from: Recent non-hybrid origin of sunflower ecotypes in a novel habitat

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;The genomics of local adaptation is an increasingly active field, providing insights into the forces driving ecological speciation and the repeatability of evolution. Demography and gene flow play an important role in determining the paths by which parallel evolution occurs and the genomic signatures of adaptation. In the annual sunflowers, hybridization between species has repeatedly led to the colonization of extreme habitats, such as sand dunes. In a new case of adaptation to sand dunes that occurs in populations of H. petiolaris growing at Great Sand Dunes National Park and Preserve (Colorado), we wished to determine the age and long-term migration patterns of the system, as well as its ancestry. We addressed these questions with restriction-associated DNA (RAD) sequence data, aligned to a reference transcriptome. In an isolation with migration model using RAD sequences, coalescent analysis showed that the dune ecotype originated since the last ice age, which is very recent compared with the hybrid dune species, H. anomalus. Large effective population sizes and substantial numbers of gene migrants per generation between dune and nondune ecotypes explained the highly heterogeneous divergence observed among loci. Analysis of RAD-derived SNPs identified heterogeneous divergence between the dune and nondune ecotypes, as well as identifying its nearest relative. Our results did not support the hypothesis that the dune ecotype has hybrid ancestry, suggesting that adaptation of sunflowers to dunes has occurred by multiple mechanisms. The ancestry and long-term history of gene flow between incipient sunflower species provides valuable context for our understanding of ecological speciation and parallel adaptation.
DOI: 10.14288/1.0397598
title: Data from: Genetic and genomic evidence of niche partitioning and adaptive radiation in mountain pine beetle fungal symbionts

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Bark beetles form multipartite symbiotic associations with blue stain fungi (Ophiostomatales, Ascomycota). These fungal symbionts play an important role during the beetle's life cycle by providing nutritional supplementation, overcoming tree defences and modifying host tissues to favour brood development. The maintenance of stable multipartite symbioses with seemingly less competitive symbionts in similar habitats is of fundamental interest to ecology and evolution. We tested the hypothesis that the coexistence of three fungal species associated with the mountain pine beetle is the result of niche partitioning and adaptive radiation using SNP genotyping coupled with genotype–environment association analysis and phenotypic characterization of growth rate under different temperatures. We found that genetic variation and population structure within each species is best explained by distinct spatial and environmental variables. We observed both common (temperature seasonality and the host species) and distinct (drought, cold stress, precipitation) environmental and spatial factors that shaped the genomes of these fungi resulting in contrasting outcomes. Phenotypic intraspecific variations in Grosmannia clavigera and Leptographium longiclavatum, together with high heritability, suggest potential for adaptive selection in these species. By contrast, Ophiostoma montium displayed narrower intraspecific variation but greater tolerance to extreme high temperatures. Our study highlights unique phenotypic and genotypic characteristics in these symbionts that are consistent with our hypothesis. By maintaining this multipartite relationship, the bark beetles have a greater likelihood of obtaining the benefits afforded by the fungi and reduce the risk of being left aposymbiotic. Complementarity among species could facilitate colonization of new habitats and survival under adverse conditions.