cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5683/sp3/c36fze
title: Data from: A demographic assessment of the Lansing Effect in duckweed (Lemna turionifera Landolt)

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;The Lansing Effect is the propensity for the offspring of older parents to have shorter lifespans than the offspring of younger parents. A recent review identified two demographic patterns that can produce the Lansing Effect: (1) a greater offspring mortality rate at all offspring ages in offspring of older versus younger parents (greater initial mortality parameter); and (2) an offspring mortality rate that increases more rapidly with offspring age in offspring of older versus younger parents (greater mortality rate parameter). Here, we report on a longitudinal study designed to investigate these patterns, using the duckweed &lt;em&gt;Lemna turionifera&lt;/em&gt;. We tracked asexually produced offspring that detached from parents that were comparatively young versus old (first versus fifth offspring, respectively). Offspring of older parents lived 15% shorter, on average than offspring of younger parents, providing evidence of the Lansing Effect. A model-selection approach revealed that the difference between survival curves of the first versus fifth offspring was mainly attributable to greater initial mortality in the fifth compared to the first offspring, though alternative models also received some support. Our study provides a demographic explanation for the Lansing Effect in &lt;em&gt;L. turionifera&lt;/em&gt; in particular and provides a method for assessing the survival patterns underpinning the Lansing Effect in general.&lt;/p&gt;
description: <b>Dryad version number:</b> 3
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.kprr4xhdc
<b>Storage size:</b> 111530
<b>Visibility:</b> public
DOI: 10.5683/sp3/i1lzhp
title: Data from: A multigenerational effect of parental age on offspring size but not fitness in common duckweed (Lemna minor)

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Classic theories on the evolution of senescence make the simplifying assumption that all offspring are of equal quality, so that demographic senescence only manifests through declining rates of survival or fecundity. However, there is now evidence that, in addition to declining rates of survival and fecundity, many organisms are subject to age-related declines in the quality of offspring produced (i.e. parental age effects). Recent modelling approaches allow for the incorporation of parental age effects into classic demographic analyses, assuming that such effects are limited to a single generation. Does this ‘single-generation’ assumption hold? To find out, we conducted a laboratory study with the aquatic plant Lemna minor, a species for which parental age effects have been demonstrated previously. We compared the size and fitness of 423 lab-cultured plants (asexually-derived ramets) representing various birth orders, and ancestral ‘birth-order genealogies’. We found that offspring size and fitness both declined with increasing ‘immediate’ birth order (i.e. birth order with respect to the immediate parent), but only offspring size was affected by ancestral birth order. Thus, the assumption that parental age effects on offspring fitness are limited to a single generation does in fact hold for L. minor. This result will guide theorists aiming to refine and generalise modelling approaches that incorporate parental age effects into evolutionary theory on senescence.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;Raw Data&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;Birth orders and reproduction schedules (number of offspring released per day) for the focal fronds of Lemna minor used in our study.&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;BarksAndLaird2016_JEB_RawData.csv&lt;/br&gt;&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;/div&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;R Scripts (Analysis)&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;R scripts to reproduce the statistical analyses presented in our paper.&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;BarksAndLaird2016_JEB_RScripts.R&lt;/br&gt;&lt;/div&gt;&lt;/div&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;R Scripts (Figures)&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;R scripts to reproduce the figures in our paper&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;BarksAndLaird2016_JEB_Figures.R&lt;/br&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.m7n13
<b>Storage size:</b> 164781
<b>Visibility:</b> public
DOI: 10.5683/sp3/c0wuxz
title: Data from: Demographic senescence in the aquatic plant Lemna gibba L. (Araceae)

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Senescence is progressive, age-related bodily deterioration, accompanied at the population level by declines in average survival and fecundity (i.e., ‘demographic senescence’). Demographic senescence of plants has been investigated in only a few species, including small, floating macrophytes in the genus Lemna (family Araceae, subfamily Lemnoideae – the ‘duckweeds’). Unlike most plant species, Lemna ramets exhibit determinate growth, potentially rendering them more likely to experience demographic senescence. Here, our objective was to investigate senescence in a Lemna species not previously studied in this context, L. gibba L., toward the long-term goal of conducting cross-species comparative analyses. In a longitudinal lab study, we investigated a cohort of 334 individual L. gibba fronds, whose survival and reproduction we followed daily from birth (defined by the date a focal frond detached from its parent) to death (defined by the date a focal frond’s last daughter detached). We fit survival data to exponential, Weibull, Gompertz, and logistic models, the first of which represents ‘no senescence’. The logistic model was found to have the greatest support (AICC weight &gt;0.99), indicating strong age-related declines in survival. We fit reproduction data using a generalized estimating equation approach, which showed a significant age-related decline in the predicted probability of daily reproduction – from 0.61 at age 3 days to 0.23 at age 52 days (i.e., after excluding the first two days of reproduction data to account for the initial, pre-reproductive phase of the L. gibba lifecycle). These age-related declines provide strong evidence that L. gibba does exhibit demographic senescence, consistent with evidence from congeneric species.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;Gibba - Data (Raw)&lt;/h4&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;/div&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;Lemna_gibba_R_code&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;Annotated R code to recreate analyses and figures.&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.18tb602
<b>Storage size:</b> 106601
<b>Visibility:</b> public
DOI: 10.5683/sp3/ubpqb8
title: Data from: Direction matching for sparse movement data sets: determining interaction rules in social groups

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;It is generally assumed that high-resolution movement data are needed to extract meaningful decision-making patterns of animals on the move. Here we propose a modified version of force matching (referred to here as direction matching), whereby sparse movement data (i.e., collected over minutes instead of seconds) can be used to test hypothesized forces acting on a focal animal based on their ability to explain observed movement. We first test the direction matching approach using simulated data from an agent-based model, and then go on to apply it to a sparse movement data set collected on a troop of baboons in the DeHoop Nature Reserve, South Africa. We use the baboon data set to test the hypothesis that an individual’s motion is influenced by the group as a whole or, alternatively, whether it is influenced by the location of specific individuals within the group. Our data provide support for both hypotheses, with stronger support for the latter. The focal animal showed consistent patterns of movement toward particular individuals when distance from these individuals increased beyond 5.6 m. Although the focal animal was also sensitive to the group movement on those occasions when the group as a whole was highly clustered, these conditions of isolation occurred infrequently. We suggest that specific social interactions may thus drive overall group cohesion. The results of the direction matching approach suggest that relatively sparse data, with low technical and economic costs, can be used to test between hypotheses on the factors driving movement decisions.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;XY coordinates of individual baboons&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;This dataset consists of 74 days of full-day follows of a baboon troop (Papio hamadryas ursinus) at the DeHoop Nature Reserve in South Africa. Individual GPS points of all adult group members (N=14) were collected continuously throughout the day by an observer walking repeatedly from one end of the group to the other. A GPS point was taken on all adults present in the group by holding the GPS receiver above the animal (or as close as possible) to record its position and individual identity&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;baboon_group_dehoop.csv&lt;/br&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.kv2kh
<b>Storage size:</b> 4729348
<b>Visibility:</b> public
DOI: 10.5683/sp3/foannh
title: Data from: Do traits of plant species predict the efficacy of species distribution models for finding new occurrences?

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p&gt;Species distribution models (SDMs) are used to test ecological theory and to direct targeted surveys for species of conservation concern. Several studies have tested for an influence of species traits on the predictive accuracy of SDMs. However, most used the same set of environmental predictors for all species and/or did not use truly independent data to test SDM accuracy. We built eight SDMs for each of 24 plant species of conservation concern, varying the environmental predictors included in each SDM version. We then measured the accuracy of each SDM using independent presence and absence data to calculate area under the receiver operating characteristic curve (AUC) and true positive rate (TPR). We used generalized linear mixed models to test for a relationship between species traits and SDM accuracy, while accounting for variation in SDM performance that might be introduced by different predictor sets. All traits affected one or both SDM accuracy measures. Species with lighter seeds, animal-dispersed seeds, and a higher density of occurrences had higher AUC and TPR than other species, all else being equal. Long-lived woody species had higher AUC than herbaceous species, but lower TPR. These results support the hypothesis that the strength of species-environment correlations is affected by characteristics of species or their geographic distributions. However, because each species has multiple traits, and because AUC and TPR can be affected differently, there is no straightforward way to determine a priori which species will yield useful SDMs based on their traits. Most species yielded at least one useful SDM. Therefore, it is worthwhile to build and test SDMs for the purpose of finding new populations of plant species of conservation concern, regardless of these species’ traits.&lt;/p&gt;
description: &lt;b&gt;Methods&lt;/b&gt;&lt;br /&gt;&lt;p&gt;We built eight SDMs for each of 24 plant species of conservation concern, varying the environmental predictors included in each SDM version. We then measured the accuracy of each SDM using fully independent presence and absence data to calculate area under the receiver operating characteristic curve (AUC) and true positive rate (TPR). We compiled data on plant traits, including seed weight, dispersal mechanism, woody vs. non-woody from the literature and from the Kew Seed Information Database. &lt;/p&gt;
description: <b>Dryad version number:</b> 4
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.rv15dv452
<b>Storage size:</b> 319608
<b>Visibility:</b> public
DOI: 10.5683/sp3/dinncd
title: Data from: Duetting behavior varies with sex, season, and singing role in a tropical oriole (Icterus icterus)

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Females and males of many animals combine their vocalizations into coordinated acoustic duets. Duets can mediate both cooperation and conflict between partners, and are common in tropical, sedentary species that may use duets for multiple functions year-round. To elucidate the full range of duet functions, we need to study the individual-level behaviors that generate duets throughout the year. We evaluated multiple functions of duetting behavior in female and male Venezuelan troupials (Icterus icterus) during the breeding and non-breeding seasons, including territory defense, maintaining contact with a mate, and paternity guarding. In both sexes during both seasons, song initiation rates were predicted by conspecific solo and duet rates. However, troupials were more likely to answer their mate to form duets after conspecific duets than after conspecific solos, supporting a territory defense function of duets. Troupials that answered their mate to form duets were also more likely to move toward their mate (than duet initiators and soloists), suggesting that duet participation also functions to maintain contact. During the breeding season, males were particularly likely to fly toward their mate after answering to form a duet. This finding may indicate that males answer to guard paternity, although other predictions of paternity guarding are not supported. Examining individual-level behaviors during both the breeding and non-breeding season revealed multiple functions of troupial duets. Our results are consistent with social selection acting on females and males to maintain contact and territories year-round, and possibly sexual selection on males for functions tied to the breeding season.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;OdomEtal2017_BehavEcol_TroupialBehaviorData&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;Singing and duetting behavior data for Venezuelan Troupials (Icterus icterus) from Puerto Rico used in Odom et al. 2017 published in Behavioral Ecology. The data are of initiation and answering behavior, including variables that predict initiation and answering and subsequent behaviors following initiation and answering.&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;OdomEtal2017_BehavEcol_VETRbehavior_DryadData_Final.xlsx&lt;/br&gt;&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.47vd6
<b>Storage size:</b> 102077
<b>Visibility:</b> public
DOI: 10.5683/sp3/6qwmqd
title: Data from: Evolutionarily labile dispersal behavior and discontinuous habitats enhance population differentiation in island vs continentally distributed swallows

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;&lt;p class="MsoNormal"&gt;&lt;span&gt;The causes of population divergence in vagile groups remain a paradox in evolutionary biology: dispersive species should be able to colonize new areas, a prerequisite for allopatric speciation, but dispersal also facilitates gene flow, which erodes population differentiation. Strong dispersal ability has been suggested to enhance divergence in patchy habitats and inhibit divergence in continuous landscapes, but empirical support for this hypothesis is lacking. Here we compared patterns of population divergence in a dispersive clade of swallows distributed across both patchy and continuous habitats. The Pacific Swallow (&lt;/span&gt;&lt;em&gt;Hirundo tahitica&lt;/em&gt;&lt;span&gt;) has an insular distribution throughout Southeast Asia and the Pacific, while its sister species, the Welcome Swallow (&lt;/span&gt;&lt;em&gt;H. neoxena&lt;/em&gt;&lt;span&gt;), has a continental distribution in Australia. We used whole-genome data to demonstrate strong genetic structure and limited introgression among insular populations, but not among continental populations. Demographic models show that historic changes in habitat connectivity have contributed to population structure within the cl&lt;/span&gt;ade. Swallows appear to exhibit evolutionarily labile dispersal behavior in which they reduce dispersal propensity after island colonization despite retaining strong flight ability. Our data support the hypothesis that fragmented habitats enhance population differentiation in vagile groups, and suggest that labile dispersal behavior is a key mechanism underlying this pattern.&lt;/p&gt;
description: <b>Dryad version number:</b> 4
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.18931zd3m
<b>Storage size:</b> 5591183950
<b>Visibility:</b> public
DOI: 10.5683/sp3/tijykq
title: Data from: Gene flow of a forest-dependent bird across a fragmented landscape

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Habitat loss and fragmentation can affect the persistence of populations by reducing connectivity and restricting the ability of individuals to disperse across landscapes. Dispersal corridors promote population connectivity and therefore play important roles in maintaining gene flow in natural populations inhabiting fragmented landscapes. In the prairies, forests are restricted to riparian areas along river systems which act as important dispersal corridors for forest dependent species across large expanses of unsuitable grassland habitat. However, natural and anthropogenic barriers within riparian systems have fragmented these forested habitats. In this study, we used microsatellite markers to assess the fine-scale genetic structure of a forest-dependent species, the black-capped chickadee (Poecile atricapillus), along 10 different river systems in Southern Alberta. Using a landscape genetic approach, landscape features (e.g., land cover) were found to have a significant effect on patterns of genetic differentiation. Populations are genetically structured as a result of natural breaks in continuous habitat at small spatial scales, but the artificial barriers we tested do not appear to restrict gene flow. Dispersal between rivers is impeded by grasslands, evident from isolation of nearby populations (~ 50 km apart), but also within river systems by large treeless canyons (&gt;100 km). Significant population genetic differentiation within some rivers corresponded with zones of different cottonwood (riparian poplar) tree species and their hybrids. This study illustrates the importance of considering the impacts of habitat fragmentation at small spatial scales as well as other ecological processes to gain a better understanding of how organisms respond to their environmental connectivity. Here, even in a common and widespread songbird with high dispersal potential, small breaks in continuous habitats strongly influenced the spatial patterns of genetic variation.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;GenotypeData_DRYAD_Adams&Burg2015&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;Microsatellite genotypes from black-capped chickadees&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.6rj7r
<b>Storage size:</b> 127917
<b>Visibility:</b> public
DOI: 10.5683/sp3/dalynf
title: Data from: Geographical barriers and climate influence demographic history in narrowleaf cottonwoods

description: &lt;b&gt;Abstract&lt;/b&gt;&lt;br/&gt;Studies of genetic variation can clarify the role of geography and spatio-temporal variation of climate in shaping demography, particularly in temperate zone tree species with large latitudinal ranges. Here, we examined genetic variation in narrowleaf cottonwood, Populus angustifolia, a dominant riparian tree. Using multi-locus surveys of polymorphism in 363 individuals across the species’ 1800 km latitudinal range, we found that, first, P. angustifolia has stronger neutral genetic structure than many forest trees (simple sequence repeat (SSR) FST=0.21), with major genetic groups corresponding to large apparent geographical barriers to gene flow. Second, using SSRs and putatively neutral sequenced loci, coalescent simulations indicated that populations diverged before the last glacial maximum (LGM), suggesting the presence of population structure before the LGM. Third, the LGM and subsequent warming appear to have had different influences on each of these distinct populations, with effective population size reduction in the southern extent of the range but major expansion in the north. These results are consistent with the hypothesis that climate and geographic barriers have jointly affected the demographic history of P. angustifolia, and point the importance of both factors as being instrumental in shaping genetic variation and structure in widespread forest trees.
description: &lt;b&gt;Usage notes&lt;/b&gt;&lt;br /&gt;&lt;div class="o-metadata__file-usage-entry"&gt;&lt;h4 class="o-heading__level3-file-title"&gt;Populus angustifolia locations and SSR data&lt;/h4&gt;&lt;div class="o-metadata__file-description"&gt;This file contains all the SSR data collected for all unique P. angustifolia genotypes, formatted for the program STRUCTURE. It also contains the latitude, longitude, and elevation of the collections.&lt;/div&gt;&lt;div class="o-metadata__file-name"&gt;PopulusAngustifoliaSSR.xlsx&lt;/br&gt;&lt;/div&gt;&lt;/div&gt;
description: <b>Dryad version number:</b> 1
<b>Version status:</b> submitted
<b>Dryad curation status:</b> Published
<b>Sharing link:</b> http://datadryad.org/stash/dataset/doi:10.5061/dryad.82kv2
<b>Storage size:</b> 129478
<b>Visibility:</b> public