cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5061/dryad.mg6t7
title: Data from: Persistent sex-by-environment effects on offspring fitness and sex-ratio adjustment in a wild bird population

description: 1. A major component of sex-allocation theory, the Trivers-Willard Model
 (TWM), posits that sons and daughters are differentially affected by
 variation in the rearing environment. In many species, the amount of
 parental care received is expected to have differing effects on the
 fitness of males and females. When this occurs, the TWM predicts that
 selection should favour adjustment of the offspring sex ratio in relation
 to the expected fitness return from offspring. However, evidence for
 sex-by-environment effects is mixed and little is known about the adaptive
 significance of producing either sex. 2. Here, we test whether offspring
 sex ratios vary according to predictions of the TWM in the house wren
 (Troglodytes aedon, Vieillot). We also test the assumption of sex-biased
 environmental sensitivity of offspring using two experiments, one in which
 we manipulated age-differences among nestlings within broods, and another
 in which we held nestling age constant but manipulated brood size. 3. As
 predicted, females with high investment ability over-produced sons
 relative to those with lower ability. Sex ratios also varied seasonally,
 with males being over-produced early within breeding seasons. In our
 experiments, the body mass of sons was more strongly affected by the
 sibling-competitive environment and resource availability than that of
 daughters: males grew heavier than females when in good conditions but
 were lighter when in poor conditions. 4. Parents rearing broods with 1:1
 sex ratios were more productive than broods biased more strongly towards
 sons or daughters, suggesting that selection favours the production of
 mixed-sex broods. However, differences in the condition of offspring as
 neonates persisted to adulthood, and the reproductive success of adult
 offspring as adults varied with the body mass of sons, but not daughters,
 prior to independence from parental care. Thus, selection should favour
 slight but predictable variations in the sex ratio in relation to the
 quality of offspring that parents are able to produce. 5. Offspring sex
 interacts with the neonatal environment to influence offspring fitness,
 thus favouring sex-ratio adjustment by parents. However, increased
 sensitivity of males to environmental conditions, such as sibling rivalry
 and resource availability, reduces the fitness returns from male-biased
 broods.
description: NESTS_2009_2011COMP_HIER_EXPTBROOD_SIZE_EXPTRECRUITS
DOI: 10.5061/dryad.0pn48s2t
title: Data from: Sexually antagonistic genetic variance for fitness in an ancestral and a novel environment

description: The intersex genetic correlation for fitness (rwfm), a standardized
 measure of the degree to which male and female fitness covary genetically,
 has consequences for important evolutionary processes, but few estimates
 are available and none have explored how it changes with environment.
 Using a half-sibling breeding design, we estimated the genetic
 (co)variance matrix (G) for male and female fitness, and the resulting
 rwfm,in Drosophila serrata. Our estimates were performed in two
 environments: the laboratory yeast food to which the population was well
 adapted and a novel corn food. The major axis of genetic variation for
 fitness in the two environments, accounting for 51.3 per cent of the total
 genetic variation, was significant and revealed a strong signal of sexual
 antagonism, loading negatively in both environments on males but
 positively on females. Consequently, estimates of rwfm were negative in
 both environments (-0.34 and -0.73, respectively), indicating that the
 majority of genetic variance segregating in this population has
 contrasting effects on male and female fitness. The possible strengthening
 of the negative rwfm in this novel environment may be a consequence of no
 history of selection for amelioration of sexual conflict. Additional
 studies from a diverse range of novel environments will be needed to
 determine the generality of this finding.
description: Rundle_Fitness_dataSee associated ReadMe text file.
DOI: 10.5061/dryad.684mm
title: Data from: Harnessing ant defence at fruits reduces bruchid seed predation in a symbiotic ant-plant mutualism

description: In horizontally transmitted mutualisms, mutualists disperse separately and
 reassemble in each generation with partners genetically unrelated to those
 in the previous generation. Because of this, there should be no selection
 on either partner to enhance the other's reproductive output
 directly. In symbiotic ant–plant mutualisms, myrmecophytic plants host
 defensive ant colonies, and ants defend the plants from herbivores. Plants
 and ants disperse separately, and, although ant defence can indirectly
 increase plant reproduction by reducing folivory, it is unclear whether
 ants can also directly increase plant reproduction by defending seeds. The
 neotropical tree Cordia alliodora hosts colonies of Azteca pittieri ants.
 The trees produce domatia where ants nest at stem nodes and also at the
 node between the peduncle and the rachides of the infloresence. Unlike the
 stem domatia, these reproductive domatia senesce after the tree fruits
 each year. In this study, I show that the tree's resident ant colony
 moves into these ephemeral reproductive domatia, where they tend
 honeydew-producing scale insects and patrol the nearby developing fruits.
 The presence of ants significantly reduced pre-dispersal seed predation by
 Amblycerus bruchid beetles, thereby directly increasing plant reproductive
 output.
description: Data_Pringle_2014_ProcBData include ant recruitment trials, bruchid seed predation, stable isotopes, and ant behavioral time trials.Pringle_ProcB.zip
DOI: 10.5061/dryad.rt166
title: Data from: Experimental evidence that honeybees depress wild insect densities in a flowering crop

description: While addition of managed honeybees (Apis mellifera) improves pollination
 of many entomophilous crops, it is unknown if it simultaneously suppresses
 the densities of wild insects through competition. To investigate this, we
 added 624 honeybee hives to 23 fields of oilseed rape (Brassica napus L.)
 over 2 years and made sure that the areas around 21 other fields were free
 from honeybee hives. We demonstrate that honeybee addition depresses the
 densities of wild insects (bumblebees, solitary bees, hoverflies,
 marchflies, other flies, and other flying and flower-visiting insects)
 even in a massive flower resource such as oilseed rape. The effect was
 independent of the complexity of the surrounding landscape, but increased
 with the size of the crop field, which suggests that the effect was caused
 by spatial displacement of wild insects. Our results have potential
 implications both for the pollination of crops (if displacement of wild
 pollinators offsets benefits achieved by adding honeybees) and for
 conservation of wild insects (if displacement results in negative fitness
 consequences).
description: Lindstrom_WOSR1112_Insect_dataNumber of insects per field, group, visit number and transect. Aggregation level: summed per segment 1-4. The file contains fieldID, year of study, landscape class, honey bee treatment, oilseed rape cultivar type, visit number and transect.Lindstrom_WOSR1112_Field_areaField area of the study fields.Lindstrom_WOSR1112_Meta_dataDescription of tha factors included in Lindstrom_WOSR1112_Insect_data and Lindstrom_WOSR1112_Field_area.
DOI: 10.5061/dryad.gs228
title: Data from: Influence of landscape features on the microgeographic genetic structure of a resident songbird.

description: Landscape features influence individual dispersal and as a result can
 affect both gene flow and genetic variation within and between
 populations. The landscape of British Columbia, Canada, is already highly
 heterogeneous due to natural ecological and geological transitions, but
 disturbance from human-mediated processes has further fragmented
 continuous habitat, particularly in the central plateau region. In this
 study, we evaluated the effects of landscape heterogeneity on the genetic
 structure of a common resident songbird, the black-capped chickadee
 (Poecile atricapillus). Previous work revealed significant population
 structuring in British Columbia which could not be explained by physical
 barriers, so our aim was to assess the pattern of genetic structure at a
 microgeographic scale and determine the effect of different landscape
 features on genetic differentiation. A total of 399 individuals from 15
 populations were genotyped for fourteen microsatellite loci revealing
 significant population structuring in this species. Individual and
 population-based analyses revealed as many as nine genetic clusters with
 isolation in the north, the central plateau and the south. Moreover, a
 mixed modelling approach that accounted for non-independence of pairwise
 distance values revealed a significant effect of land cover and elevation
 resistance on genetic differentiation. These results suggest that barriers
 in the landscape influence dispersal which has led to the unexpectedly
 high levels of population isolation. Our study demonstrates the importance
 of incorporating landscape features when interpreting patterns of
 population differentiation. Despite taking a microgeographic approach, our
 results have opened up additional questions concerning the processes
 influencing dispersal and gene flow at the local scale.
description: Copy of
 GenotypeData_DRYAD_Adams.etal.2016Individual genotype data
 for 14 microsatellite loci.GenotypeData_DRYAD_Adams.etal.2016.xls
DOI: 10.5061/dryad.3tg2vf88
title: Data from: Genetic erosion in wild populations makes resistance to a pathogen more costly

description: Populations that have suffered from genetic erosion are expected to
 exhibit reduced average trait values or decreased variation in adaptive
 traits when experiencing periodic or emergent stressors such as infectious
 disease. Genetic erosion may consequentially modify the ability of a
 potential host population to cope with infectious disease emergence. We
 experimentally investigate this relationship between genetic variability
 and host response to exposure to an infectious agent both in terms of
 susceptibility to infection and indirect parasite-mediated responses that
 also impact fitness. We hypothesized that the deleterious consequences of
 exposure to the pathogen (Batrachochytrium dendrobatidis) would be more
 severe for tadpoles descended from European tree frog (Hyla arborea)
 populations lacking genetic variability. Although all exposed tadpoles
 lacked detectable infection, we detected this relationship for some
 indirect host responses, predominantly in genetically depleted animals, as
 well as an interaction between genetic variability and pathogen dose on
 lifespan during the post-metamorphic period. Lack of infection and a
 decreased mass and post-metamorphic lifespan in low genetic diversity
 tadpoles lead us to conclude that genetic erosion, while not affecting the
 ability to mount effective resistance strategies, also erodes the capacity
 to invest in resistance, increased tadpole growth rate and metamorphosis
 relatively simultaneously.
description: dataDRYADThe raw dataset
DOI: 10.5061/dryad.nt6bq
title: Data from: Quantifying the role of colonization history and biotic interactions in shaping communities –a community transplant approach

description: The role of colonization history and subsequent biotic interactions in
 determining the species composition in communities has long been the
 subject of debate in ecology. While one narrative has emphasized
 deterministic assembly rules, another has emphasized historical
 contingency. One problem lies in approach: community studies are typically
 either manipulative but somewhat unnatural, or observational but lacking
 manipulation. Furthermore, while most ecologists now recognize that both
 historical and biotic factors shape communities, too few studies have
 moved beyond qualitative descriptions of their roles. Here we use a
 manipulative approach that leverages natural variation to provide
 quantitative estimates of the relative contributions of colonization
 history and the subsequent biotic interactions. 384 communities were
 developed on artificial substrata in a homogeneous environment before
 undergoing reciprocal transplantation. We then compare community structure
 before and after transplantation as proxies for colonization history and
 biotic interactions. We found that the importance of history and the
 ensuing biotic environment differed at different times in community
 development. Early transplantations resulted in the local environment
 modifying community history faster compared to postponed transplantations.
 With a four-week difference in age, colonization history explained 20%
 more of the variation in older communities than in younger communities.
 Biotic interactions were able to modify colonization history at the age of
 16 weeks, but older communities showed more resistance to the changing
 biotic environment. Our method provides a manipulative and quantitative
 approach for understanding the relative contributions of colonization
 history and biotic interactions to community in natural systems.
description: Q123_t1_finalpercentThis is the first field sampling of the early transplantation experiment. Data in a row represent percentage cover data of a plot. The first six columns are factors that uniquely identify each plot. The rest are main data of percentage cover of each taxon.Q123_t2_finalpercentThis is the second field sampling of the early transplantation experiment. Data in a row represent percentage cover data of a plot. The first six columns are factors that uniquely identify each plot. The rest are main data of percentage cover of each taxon.Q456_t2_finalpercentThis is the first field sampling of the late transplantation experiment. Data in a row represent percentage cover data of a plot. The first six columns are factors that uniquely identify each plot. The rest are main data of percentage cover of each taxon.Q456_t3_finalpercentThis is the second field sampling of the late transplantation experiment. Data in a row represent percentage cover data of a plot. The first six columns are factors that uniquely identify each plot. The rest are main data of percentage cover of each taxon.
DOI: 10.5061/dryad.v88q2
title: Data from: Admixture increases performance of an invasive plant beyond first generation heterosis

description: 1. Through its potential to enhance progeny performance, admixture
 (between-population crossing) may promote invasiveness of alien plants.
 The few studies that tested this idea found evidence for heterosis
 (positive effects of admixture) in the first generation (F1), but have not
 considered further generations. In this paper, we test whether
 admixture-benefits can be maintained in subsequent generations of an
 invasive plant. 2. We follow up on a previous study, in which we made
 crosses between plants of Mimulus guttatus from native- (western North
 America) and invaded-range populations (New Zealand and Scotland), and
 showed that admixture increases F1 performance. Here, we performed further
 crosses to create non-admixed progeny, F1 progeny resulting from within-
 and between-range admixture, and subsequent F2 progeny both through
 outcrossing and through self-fertilization. As heterosis, out- and
 inbreeding depression may depend on the environment, we assessed
 progeny-performance under benign (well-watered) and drought-stress
 conditions in a greenhouse experiment. 3. We found that non-admixed
 progeny of M. guttatus were outperformed by admixed progeny (averaged
 across F1 and F2), particularly by progeny from between-range admixture.
 However, the benefit of admixture was stronger in F1 than in F2 progeny,
 especially when the F2 was produced by self-fertilisation. The benefit of
 admixture also depended on the range of origin and the test environment.
 4. Synthesis Our findings indicate that increased performance of admixed
 F1 progeny is partly maintained in the F2 progeny. Admixture might thus
 significantly boost performance of an invasive plant across multiple
 generations.
description: mimulus F2
 data_finaldummies_YLmimulus F2
 data_finaldummies.csv
DOI: 10.5061/dryad.b40gd24
title: Data from: Undocumented beetle diversity in the Southeastern United States: a case study of the minute clubbed beetles (Coleoptera: Monotomidae)

description: Studies of the saproxylic and predatory beetle family Monotomidae
 (Coleoptera: Cucujoidea) in the southeastern USA increased the known
 diversity for the family in the state of Georgia by one genus and nine
 species. Online records of Monotomidae from Georgia increased from 0 to
 885. This work highlights the lack of basic diversity information about
 small beetles that inhabit wood, leaf litter, and other decaying plant
 matter in this region.
description: Monotomidae of GA CSV
 and KML filesContains CSV and KML
 files organized by species. Each KML file can be opened in Google Earth to
 view occurrences geospatially. The CSV files contain flat data files with
 Darwin-Core headers of all species occurrences of Monotomidae occurring in
 Georgia, USA, at the time of this study.Monotomidae of GA Data raw CSV
 and KML.zip
DOI: 10.5061/dryad.q436v45
title: Data from: Seasonal shifts in the importance of bottom-up and top-down factors on stream periphyton community structure

description: We examined the importance of temporal variability in top-down and
 bottom-up effects on the accumulation of stream periphyton, which are
 complex associations of autotrophic and heterotrophic microorganisms.
 Periphyton contributes to primary production and nutrient cycling and
 serves as a food resource for herbivores (grazers). Periphyton growth is
 often limited by the availability of nitrogen and phosphorus, and biomass
 can be controlled by grazers. In this study we experimentally manipulated
 nutrients and grazers simultaneously to determine the relative
 contribution of bottom-up and top-down controls on periphyton over time.
 We used nutrient diffusing substrates to regulate nutrient concentrations
 and an underwater electric field to exclude grazing insects in three
 sequential 16-17 day experiments from August to October in montane
 Colorado, USA. We measured algal biomass, periphyton organic mass, and
 algal community composition in each experiment and determined densities of
 streambed insect species, including grazers. Phosphorus was the primary
 limiting nutrient for algal biomass, but it did not influence periphyton
 organic mass across all experiments. Effects of nutrient additions on
 algal biomass and community composition decreased between August and
 October. Grazed substrates supported reduced periphyton biomass only in
 the first experiment, corresponding to high benthic abundances of a
 dominant mayfly grazer (Rhithrogena spp.). Grazed substrates in the first
 experiment also showed altered algal community composition with reduced
 diatom relative abundances, presumably in response to selective grazing.
 We showed that top-down grazing effects were strongest in late summer when
 grazers were abundant. The effects of phosphorus additions on algal
 biomass likely decreased over time because temperature became more
 limiting to growth than nutrients, and because reduced current velocity
 decreased nutrient uptake rates. These results suggest that investigators
 should proceed with caution when extending findings based on short-term
 experiments. Furthermore, these results support the need for additional
 seasonal-scale field research in stream ecology.
description: Beck et al. Oikos 2018
 Top-Down Bottom-Up Biomass ResponsesThis file includes data
 on periphyton biomass response variables including chlorophyll a, ash-free
 dry mass, and the autotrophic index.Beck et al. Oikos 2018
 Top-Down Bottom-Up Community ResponsesThis file includes data
 on the community composition response variables (green algae,
 cyanobacteria, and diatoms) determined using UPLC-UV-MS pigment
 analysis.
DOI: 10.5061/dryad.h5h3c
title: Data from: How temperature shifts affect parasite production: testing the roles of thermal stress and acclimation

description: 1. Changes in the magnitude and frequency of temperature shifts with
 climate change will influence species interactions if species have
 differential acclimation responses. For example, if parasites acclimate to
 temperature shifts faster than their hosts, as might be expected due to
 their smaller sizes and faster metabolisms, temperature variability could
 lead to increased infection. However, this assumption might not hold if
 benefits of acclimation are counteracted by energetic costs or thermal
 stress, underscoring the need for empirical efforts to assess how
 temperature variability will influence host-parasite interactions. 2. We
 used an array of replicate incubators to test how temperature shifts from
 five acclimation temperatures (13-25°C) to five performance temperatures
 (16-28°C) influenced release of infective stages by the trematode
 parasite, Ribeiroia ondatrae, from its snail intermediate host (Helisoma
 trivolvis) at four time points after a temperature shift. 3. Initially,
 parasite release was higher at warm temperatures and increased temporarily
 after infected snails were shifted to higher temperatures, particularly
 for hosts acclimated to cooler temperatures. However, these effects were
 transient, such that parasite release at warm temperatures declined
 steadily over the seven days following the shift. Warmer temperatures also
 increased snail mortality. 4. Parasite release was strongly influenced not
 only by ambient temperature but also by the thermal history of the host.
 Prior acclimation to warm temperatures reduced parasite release at warm
 performance temperatures, contrary to the beneficial acclimation
 hypothesis. Rather, the observed pattern was likely driven by: (1)
 energetic costs of prolonged exposure to high temperatures (“thermal
 stress”) or (2) parasites’ capacity to “store” infectious stages at cooler
 temperatures. 5. The time-dependent nature of thermal effects on parasite
 performance highlights the importance of considering the amplitude and
 frequency of temperature variability for understanding future changes to
 disease dynamics.
description: SnailShedDataforDryadLaboratory-raised Helisoma trivolvis snails were held at one of 5 acclimation temperatures (13-25 deg C) for 11 days prior to being moved to one of 5 performance temperatures (16-28 deg C) for 7 days. Some snails were exposed in the laboratory to Ribeiroia ondatrae, and parasite release was measured at several time-points before and after the temperature shift. Please see paper methods for more details.
DOI: 10.15468/dl.wjj64n
title: Occurrence Download

description: A dataset containing 3336 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Doxocopa laure"
 ]
}

 The dataset includes 3336 records from 36 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000778-260126135527185/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.