cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5061/dryad.j5vv5c4
title: Data from: Nectar quality changes the ecological costs of chemically defended pollen

description: Plants often compete in a marketplace that involves the exchange of floral
 rewards for pollination service. This marketplace is frequently viewed as
 revolving around a single currency, typically nectar. While this focus has
 established pollinators such as bees as classic models in foraging
 ecology, in reality many plants provide both pollen and nectar, which vary
 in composition within and across species. How this complexity impacts
 interactions between plants, pollinators, and co-flowering competitors is
 unknown. We explored how variation in two axes of reward chemistry –
 nectar sugar and pollen alkaloid content – impacted competition for
 bumblebee visits. The effect of variation in one reward depended on the
 presence and quality of the other — bees discriminated against flowers
 with more defended pollen when all flowers offered the same quality
 nectar. However, bees preferred flowers with highly defended pollen when
 they offered higher quality nectar, suggesting that attractive nectar can
 overcome the ecological costs of defended pollen. Recognizing the
 interdependence of these floral currencies may help identify traits that
 drive indirect interactions between plants and clarify broader
 evolutionary patterns of floral reward phenotypes.
description: Preference Data for
 Francis 2019This file has a single
 line for each landing made by each bee. In each treatment bouts are
 censored after there are fewer than 10 bees remeaining in each treatment.
 This only includes bee that drank nectar on 25% of landings in treatments
 that include nectar. Data collected in controlled lab based behavioral
 assay. See the metadata file for more information on each
 variable.PreferenceDataFrancis2019.csvBoutLengthDataFrancis2019This file has a single line for each bee and includes all bees tested in the experiment that made at least one landing. Data collected in controlled lab based behavioral assay. See the metadata file for more information on each variable.Supplemental Data Francis 2019This file has a single line for each bee tested in the supplemental experiment. Data collected in controlled lab based behavioral assay. See the metadata file for more information on each variable.SupplementalDataFrancis2019.csv
DOI: 10.5061/dryad.31ns53c
title: Data from: Conflicting functional effects of xylem pit structure relate to the growth-longevity trade-off in a conifer species

description: Consistent with a ubiquitous life history tradeoff, trees exhibit a
 negative relationship between growth and longevity both among and within
 species. However, the mechanistic basis of this life history tradeoff is
 not well understood. In addition to resource allocation conflicts among
 multiple traits, functional conflicts arising from individual
 morphological traits may also contribute to life history tradeoffs. We
 hypothesized that conflicting functional effects of xylem structural
 traits contribute to the growth-longevity tradeoff in trees. We tested
 this hypothesis by examining the extent to which xylem morphological
 traits (i.e. wood density, tracheid diameters and pit structure) relate to
 growth rates and longevity in two natural populations of the conifer
 species Pinus ponderosa. Hydraulic constraints arise as trees grow larger
 and xylem anatomical traits adjust to compensate. We disentangled the
 effects of size through ontogeny in individual trees and growth rates
 among trees on xylem traits by sampling each tree at multiple trunk
 diameters. We found that the oldest trees had slower lifetime growth rates
 compared to younger trees in the studied populations, indicating a
 growth-longevity tradeoff. We further provide evidence that a single xylem
 trait, pit structure, with conflicting effects on xylem function
 (hydraulic safety and efficiency) relates to the growth-longevity tradeoff
 in a conifer species. This study highlights that, in addition to tradeoffs
 among multiple traits, functional constraints based on individual
 morphological traits like that of pit structure provide mechanistic
 insight into how and when life history tradeoffs arise.
description: Growth rates by age per
 year for each sampled treeSee README
 file.BAI_age_pub_data.csvAge, size, growth, and xylem data for individual trees at Mackay BarSee README file.MB_pub_data.zipPit and growth rate data for comparison across sites.See README file.Site_pit_pub_data.csvTracheid and growth rate data for comparison across sites.See README file.Site_tracheid_pub_data.csv
DOI: 10.6084/m9.figshare.31161073
title: Single-letter (but not multi-letter) flankers produce a leftward asymmetry in the flanker lexical decision task

description: We conducted three flanker lexical decision experiments to test whether multi-letter and single-letter flankers to the left and right of a target word produce symmetrical facilitation relative to an unrelated control. We also simulated these experiments using the PONG model (Snell, J. (2025). PONG: A computational model of visual word recognition through bihemispheric activation. <i>Psychological Review</i>, <i>132</i>(3), 505–527), a model that provides quantitative predictions for this task. In Experiment 1 we found symmetrical facilitation from left-consistent and right-consistent bigrams. In contrast, Experiments 2 and 3, using single-letter flankers, revealed leftward benefits, even when the consonant–vowel distribution of the flanker letters was balanced (Experiment 3). The PONG model quantitatively captured the pattern in Experiment 1 but failed to capture the leftward advantage in Experiments 2–3. This dissociation reveals that parafoveal information during visual word recognition is hemifield-symmetric for multi-letter chunks but left-weighted for single letters, suggesting that models of visual word recognition require initial-letter or hemifield weighting to account for single-letter flanker effects.
DOI: 10.6084/m9.figshare.31161073.v1
title: Single-letter (but not multi-letter) flankers produce a leftward asymmetry in the flanker lexical decision task

description: We conducted three flanker lexical decision experiments to test whether multi-letter and single-letter flankers to the left and right of a target word produce symmetrical facilitation relative to an unrelated control. We also simulated these experiments using the PONG model (Snell, J. (2025). PONG: A computational model of visual word recognition through bihemispheric activation. <i>Psychological Review</i>, <i>132</i>(3), 505–527), a model that provides quantitative predictions for this task. In Experiment 1 we found symmetrical facilitation from left-consistent and right-consistent bigrams. In contrast, Experiments 2 and 3, using single-letter flankers, revealed leftward benefits, even when the consonant–vowel distribution of the flanker letters was balanced (Experiment 3). The PONG model quantitatively captured the pattern in Experiment 1 but failed to capture the leftward advantage in Experiments 2–3. This dissociation reveals that parafoveal information during visual word recognition is hemifield-symmetric for multi-letter chunks but left-weighted for single letters, suggesting that models of visual word recognition require initial-letter or hemifield weighting to account for single-letter flanker effects.
DOI: 10.5061/dryad.v7v6n1q
title: Data from: Bayesian quantification of ecological determinants of outcrossing in natural plant populations: computer simulations and the case study of biparental inbreeding in English yew

description: The mating system is a central parameter of plant biology because it
 shapes their ecological and evolutionary properties. Therefore,
 determining ecological variables that influence the mating system is
 important for a deeper understanding of the functioning of plant
 populations. Here, using old concepts and recent statistical developments,
 we propose a new statistical tool to make inferences about ecological
 determinants of outcrossing in natural plant populations. The method
 requires co-dominant genotypes of seeds collected from maternal plants
 within different locations. Using extensive computer simulations, we
 demonstrated that the method is robust to the issues expected for
 real-world data, including the Wahlund effect, inbreeding and genotyping
 errors such as allele dropout and allele misclassification. Furthermore,
 we showed that the estimates of ecological effects and outcrossing rates
 can be severely biased if genotyping errors and genetic differentiation
 are not treated explicitly. Application of the new method to the case
 study of a dioecious tree (Taxus baccata) allowed revealing that female
 trees that grow in lower local densities have a greater tendency towards
 mating with relatives. Moreover, we also demonstrated that biparental
 inbreeding is higher in populations that are characterised by a longer
 mean distance between trees and a smaller mean trunk perimeter. We found
 these results to agree with both the theoretical predictions and the
 history of English yew.
description: Taxus
 dataMicrosatellite genotypes
 of trees and seedlings, and field measurements of Taxus baccata trees in
 10 populations in Poland.
DOI: 10.15468/v4tpgd
title: Comparative phylogeographic patterns in three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Chesser, R. Terry, Isler, Morton L., Santana, Antonita, Latch, Emily K., Stryjewski, Katherine Faust, Reed, Jennifer, Naka, Luciano N., Fleischer, Robert C., Aleixo, Alexandre (2025): Comparative phylogeographic patterns in three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria). Zootaxa 5722 (1): 1-44, DOI: 10.11646/zootaxa.5722.1.1, URL: https://doi.org/10.11646/zootaxa.5722.1.1AbstractWe examined DNA sequences of 328 individuals of three lineages (species or species complexes) of Amazonian antwrens to evaluate their degree of geographical and historical concordance. All lineages (Myrmotherula longipennis, M. menetriesii, and the Isleria guttata-hauxwelli species complex) consist of small insectivorous birds that occupy understory or midstory of terra firme forest and are widely distributed across the Amazon Basin. Individuals of each of the three lineages grouped into genetic clades mainly separated by the Amazon and some major tributaries, although members of different clades of both M. menetriesii and I. hauxwelli were documented in the Madeira-Tapajós interfluvium. Branching patterns differed among taxa, but all taxa were highly differentiated across the lower or upper Amazon. Despite the morphological, ecological, and phylogenetic similarities among lineages, and despite the fact that nearly all taxa are bounded by rivers, the effect of the other major rivers as biogeographic barriers was highly variable. The Marañón, Ucayali, Madeira, Tapajós, Xingu, Napo, Negro, and Branco all separated main clades in one or two lineages but not in the others. Levels of genetic differentiation along the Teles Pires were substantially higher than those across the Tapajós in M. menetriesii and I. hauxwelli, consistent with a proposed historical change of river course for the Tapajós. Genetic units in this study were comparable for the most part to taxonomic units delineated by analyses of vocal and morphological variation, and identical, with one exception, to units defined solely by vocal variation in a companion paper (Isler et al. 2025). These results, in conjunction with those of Isler et al. (2025), provide additional instances of the variability of responses to the historical dynamism of Amazonia, in this case in closely related and ecologically similar species; highlight the consistency of genetic differentiation with vocal differentiation in additional species of Neotropical suboscine birds; support the importance of Amazonian rivers in creating conditions that result in the differentiation of independent evolutionary lineages; and demonstrate that species richness in two of the lineages studied (M. longipennis and M. menetriesii) was previously underestimated.
DOI: 10.5061/dryad.g45n6v3
title: Data from: Linden (Tilia cordata) associated bumble bee mortality: metabolomic analysis of nectar and bee muscle

description: Linden (Tilia spp.), a profusely flowering temperate tree that provides
 bees with vital pollen and nectar, has been associated with bumble bee
 (Bombus spp.) mortality in Europe and North America. Bee deaths have been
 attributed, with inadequate evidence, to toxicity from mannose in nectar
 or starvation due to low nectar in late blooming linden. Here, we
 investigated both factors via untargeted metabolomic analyses of nectar
 from five T. cordata trees beneath which crawling/dead bumble bees (B.
 vosnesenskii) were observed, and of thoracic muscle of 28 healthy foraging
 and 29 crawling bees collected from linden trees on cool mornings
 (&lt; 30°C). Nectar contained the pyridine alkaloid trigonelline, a
 weak acetylcholinesterase inhibitor, but no mannose. Principal component
 analysis of muscle metabolites produced distinct clustering of healthy and
 crawling bees, with significant differences (P&lt;0.05) in 34 of 123
 identified metabolites. Of these, TCA (Krebs) cycle intermediates were
 strongly represented (pathway analysis; P&lt;0.01), suggesting that
 the central metabolism is affected in crawling bees. Hence, we propose the
 following explanation: when ambient temperature is low, bees with energy
 deficit are unable to maintain the thoracic temperature required for
 flight, and consequently fall, crawl, and ultimately, die. Energy deficit
 could occur when bees continue to forage on linden despite limited nectar
 availability either due to loyalty to a previously energy-rich source or
 trigonelline-triggered memory/learning impairment, documented earlier with
 other alkaloids. Thus, the combination of low temperature and nectar
 volume, resource fidelity, and alkaloids in nectar could explain the
 unique phenomenon of bumble bee mortality associated with linden.
description: T. cordata Nectar LC-MS
 Analysis 2016, 2017This file contains the
 sample IDs and original data from LC-MS/MS analysis of Tilia cordata
 nectar collected in 2016 and 2017.T.cordata_nectar_LC-MS_2016,2017.xlsxB. vosnesenskii Thoracic Muscle LC-MS Analysis 2016, 2017This file contains sample IDs and original data for untargeted liquid chromatography of bumble bee thoracic muscle conducted in 2016 and 2017.Bee_muscle_LC-MS_2016,2017.xlsmNectar, bee muscle NMR analysis 2017This file contains the results of the subset of bee thoracic muscle and linden nectar analysis conducted with nuclear magnetic resonance in 2017.Nectar,muscle_NMR_2017.xlsxT.cordata_nectar_targeted_trigonelline_2017This file contains the results of a targeted search for the alkaloid trigonelline in T. cordata nectar using LC-MS/MS.
DOI: 10.5061/dryad.58n6v74
title: Data from: Ecological correlates of extinction risk in Chinese amphibians

description: Aim: China is one of the countries with the richest amphibian biodiversity
 in the world. Among the 408 Chinese amphibians, 174 species are considered
 threatened according to the China Biodiversity Red List in 2015. However,
 to date, which species traits or extrinsic factors are correlated with
 extinction risk in Chinese amphibians is rarely examined in previous
 studies. The aims of this study were thus to identify the patterns and
 correlates of extinction risk in Chinese amphibians and to determine
 whether patterns and processes were similar between species with either
 small or large geographic distributions. Location: China. Methods: We
 obtained twelve species traits and four extrinsic factors that have been
 commonly linked to the extinction risk of amphibians. After phylogenetic
 correction, these factors were tested separately and in combination to
 identify their correlations with extinction risk in all Chinese
 amphibians, and in small-ranged and large-ranged species. Results:
 Geographic range size and elevational range were the most important
 predictors of extinction risk in all Chinese amphibians. Although
 extinction risk in small-ranged amphibians was predominantly determined by
 small elevational range, in large-ranged amphibians it was driven by
 geographic and elevational range sizes, body size, human exploitation
 index and adult microhabitat. Small-ranged amphibians had a higher
 percentage of threatened species than large-ranged species. However, the
 body size distributions were not statistically different between these two
 amphibian subgroups. Main conclusions: Our findings suggest that
 conservation priority should be given to species with small geographic and
 elevational ranges. Small-ranged and large-ranged amphibians should be
 conserved with different strategies because the factors influencing
 extinction risk differ between these two groups. In specific, the
 reduction of habitat loss should be a primary focus of management efforts
 for small-ranged species. Conservation efforts should also focus on
 preventing habitat loss and human overexploitation for the effective
 conservation of large-ranged amphibians.
description: Table
 s1Extinction risk, species
 traits and extrinsic factors of Chinese amphibians
DOI: 10.5061/dryad.jn013r2
title: Data from: The influence of fire frequency on the structure and botanical composition of savanna ecosystems

description: Savannas cover 60% of the land surface in Southern Africa, with fires and
 herbivory playing a key role in their ecology. The Limpopo National Park
 (LNP) is a 10,000 km2 conservation area in southern Mozambique and key to
 protecting savannas in the region. Fire is an important factor in LNP’s
 landscapes, but little is known about its role in the park’s ecology. In
 this study, we explored the interaction between fire frequency (FF),
 landscape and vegetation. To assess the FF, we analysed ten years of the
 MODerate resolution Imaging Spectroradiometer (MODIS) burned area product
 (2003-2013). A stratified-random sampling approach was used to assess
 biodiversity across three dominant landscapes (Nwambia Sandveld-NS,
 Lebombo North-LN and Shrubveld Mopane on Calcrete-C) and two FF levels
 (low - twice or less; and high - 3 times or more, during 10 years). Six ha
 were sampled in each stratum, except for the LN vs High FF in which low
 accessibility allowed only 3 ha sampling. FF was higher in NS and LN
 landscapes, where 25% and 34% of the area, respectively burned more than
 three times in 10 years. The landscape type was the main determinant of
 grass composition and biomass. However, in the sandy NS biomass was higher
 under high FF. The three landscapes supported three different tree/shrub
 communities, but FF resulted in compositional variations in NS and LN.
 Fire frequency had no marked influence on woody structural parameters
 (height, density and phytomass). We concluded that the savannas in LNP are
 mainly driven by landscape (geology), but FF may impose specific
 modifications. We recommend a fire laissez-faire management system for
 most of the park and a long-term monitoring system of vegetation to
 address vegetation changes related to fire. Fire management should be
 coordinated with the neighboring Kruger National Park, given its long
 history of fire management.
description: Ribeiro_dataThe files contains woody and grass data, distributed by landscape type, fire frequency and plot.
DOI: 10.5061/dryad.92kr452
title: Data from: A native parasitic plant and soil microorganisms facilitate a native plant co-occurrence with an invasive plant

description: Invasive plants often interact with antagonists that include native
 parasitic plants and pathogenic soil microbes, which may reduce fitness of
 the invaders. However, to date, most of the studies on the ecological
 consequences of antagonistic interactions between invasive plants and the
 resident biota focused only on pairwise interactions. A full understanding
 of invasion dynamics requires studies that test the effects of multiple
 antagonists on fitness of invasive plants and co-occurring native plants.
 Here, we used an invasive plant Mikania micrantha, a co-occurring native
 plant Coix lacryma-jobi, and a native holoparasitic plant Cuscuta
 campestris to test whether parasitism on M. micrantha interacts with soil
 fungi and bacteria to reduce fitness of the invader and promote growth of
 the co-occurring native plant. In a factorial set up, M. micrantha and C.
 lacryma-jobi were grown together in pots in the presence versus absence of
 parasitism on M. micrantha by C. campestris, and in the presence versus
 absence of full complements of soil bacteria and fungi. Fungicide and
 bactericide were used to suppress soil fungi and bacteria, respectively.
 Findings show that heavy parasitism by C. campestris caused the greatest
 reduction in M. micrantha biomass when soil fungi and bacteria were
 suppressed. In contrast, the co-occurring native plant C. lacryma-jobi
 experienced the greatest increase in biomass when grown with heavily
 parasitized M. micrantha and in the presence of a full complement of soil
 fungi and bacteria. Taken together, our results suggest that selective
 parasitism on susceptible invasive plants by native parasitic plants and
 soil microorganisms may diminish competitive ability of invasive plants
 and facilitate native plant co-existence with invasive plants.
description: dataBacterial number,
 Biomass of Mikania, Biomass of Coix, Colonization of
 AMF
DOI: 10.60956/j5y3-q497
title: Selected polyunsaturated fatty acids, arachidonic acid derivatives, and antioxidant enzymes of seminal plasma in the context of male fertility diagnostics
title: Wybrane wielonienasycone kwasy tłuszczowe, pochodne kwasu arachidonowego i enzymy antyoksydacyjne plazmy nasienia w kontekście diagnostyki męskiej płodności

description: <p>In the seminal plasma of men with proven fertility (n &#61; 22) and infertile men (n &#61; 250), divided into groups according to the 2021 WHO classification, the concentrations of selected polyunsaturated fatty acids (docosahexaenoic, eicosapentaenoic, arachidonic, linoleic, alpha-linolenic, and gamma-linolenic acids), prostaglandin E2, 6-keto-prostaglandin F1α, F2-isoprostane, glutathione peroxidase 1, superoxide dismutase 1, and nitric oxide synthase 1 were determined.<br /></p>
description: <p>W plazmach nasienia mężczyzn o udowodnionej płodności (n&#61;22) oraz niepłodnych (n&#61;250) podzielonych na grupy zgodnie z klasyfikacją WHO z 2021 roku oznaczono stężenia wybranych wielonienasyconych kwasów tłuszczowych (dokozahekaenowego, eikozapentaenowego, arachidonowego, linolowego, alfa-linolenowego, gamma-linolenowego), prostaglandyny E2, 6-keto-prostaglandyny F1alfa, F2-izoprostanu, peroksydazy glutationowej 1, dysmutazy ponadtlenkowej 1 oraz syntazy tlenku azotu 1.<br /></p>