cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5061/dryad.4f7d6
title: Data from: Impacts of mussel invasions on the prey preference of two native predators

description: Biotic invasions can result in the displacement of native species. This
 can alter the availability of native prey and the choices made by native
 predators. We investigated prey selection by two native South African
 predators, the west coast rock lobster Jasus lalandii and the starfish
 Marthasterias africana in response to the invasive mussels, Mytilus
 galloprovincialis and Semimytilus algosus, and native mussels Aulacomya
 atra and Choromytilus meridionalis. As the diets of lobsters and starfish
 are broad and have been suggested to reflect prey availability, we
 hypothesized that they would consume the most abundant prey, regardless of
 its native or alien status. Laboratory studies presented predators with
 varying proportions of native and invasive mussels that represented pre-
 and post-invasion scenarios. Mussel parameters (shell strength, adductor
 muscle size and energy content) that may be of importance in selection by
 predators were compared among species. Both predators exhibited preference
 towards the native mussel C. meridionalis, even when it was the least
 abundant prey. The selection of native species occurred despite mussel
 parameters suggesting invasive species would be easier to consume. These
 findings highlight the potential for facilitation of prey invasions,
 especially when predators avoid alien prey and select for native
 comparators that may offer resistance to the invasion through
 inter-specific competition. It is presently unclear how often such lack of
 predator-driven biotic resistance acts in combination with indirect
 facilitation, but interrogating the behaviors that drive such outcomes
 will advance our understanding of successful invasions.
description: Lobster_prey_preferenceThis data describes the number of mussels consumed by lobsters of different sexes (F=female; M=male) when exposed to different diets (See Table 1 in paper for details). The mussels included were Aulacomya atra (A_atra), Choromytilus meridionalis (C_meridionalis), Mytilus galloprovincialis (M_galloprovincialis) and Semimytilus algosus (S_algosus).Starfish_prey_preferenceThis data describes the number of mussels consumed by starfish when exposed to different diets (See Table 1 in paper for details). The mussels included were Aulacomya atra (A_atra), Choromytilus meridionalis (C_meridionalis), Mytilus galloprovincialis (M_galloprovincialis) and Semimytilus algosus (S_algosus).Mussel_parametersThis data describes the adductor mussel weight (mg) and shell strength (N) for Aulacomya atra (A_atra), Choromytilus meridionalis (C_meridionalis), Mytilus galloprovincialis (M_galloprovincialis) and Semimytilus algosus (S_algosus).Mussel_eneryThis data describes how the energetic content per individual (kJ) was calculated for Aulacomya atra (A_atra), Choromytilus meridionalis (C_meridionalis), Mytilus galloprovincialis (M_galloprovincialis) and Semimytilus algosus (S_algosus).
DOI: 10.5061/dryad.8d211
title: Data from: Rapid larval development under time stress reduces adult lifespan through increasing oxidative damage

description: 1. While a trade-off between larval development and adult lifespan is key
 to understand why not all animals develop at their maximum rate and why
 life histories align along a fast-slow continuum, it has been rarely
 studied. More general, the physiological mechanisms underlying life
 history trade-offs are poorly understood and there is ongoing debate about
 the mediatory role of oxidative stress. 2. We explicitly investigated the
 role of oxidative stress in mediating the trade-off between larval
 development and adult lifespan in the damselfly Lestes viridis. We exposed
 larvae to time stress (by manipulating photoperiods) and manipulated
 oxidative stress levels using the mitochondrial uncoupler
 2,4-dinitrophenol (DNP) that causes a reduced production of reactive
 oxygen species. In addition, we considered other costs of an accelerated
 development in terms of reductions in immune function (the activity of
 phenoloxidase, PO) and energy storage (fat content). 3. Larvae accelerated
 their development but not growth under time stress, allowing to identify
 costs of rapid development without confounding effects of rapid growth.
 Rapid development came at the cost of a much shorter lifespan, which was
 associated with an increase in oxidative damage to lipids, proteins and
 DNA. Other costs in the adult stage of a rapid larval development included
 a lower body mass and reduced immune function, while the fat and protein
 contents were not reduced. 4. Time-stressed animals exposed to DNP
 developed even faster and did not show the increase in oxidative damage.
 Notably, they did not suffer the costs of rapid development: they had no
 shorter lifespan, lower body mass or reduced PO activity. 5. Our results
 provide strong experimental support for a trade-off between rapid
 development and lifespan and for the mediatory role of oxidative stress in
 shaping this life history trade-off. Our study highlights that
 manipulation of mitochondrial uncoupling may be a powerful method to study
 the mechanistic underpinnings of life history trade-offs.
description: data Janssens &
 Stoks F.E.original dataset with
 different response variables (life history and physiology) covered in the
 article published in Functional Ecology.
DOI: 10.5061/dryad.jk42p
title: Data from: Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation

description: The river-resident Salmo salar (“småblank”) has been isolated from other
 Atlantic salmon populations for 9,500 years in upper River Namsen, Norway.
 This is the only European Atlantic salmon population accomplishing its
 entire life cycle in a river. Hydropower development during the last six
 decades has introduced movement barriers and changed more than 50% of the
 river habitat to lentic conditions. Based on microsatellites and SNPs,
 genetic variation within småblank was only about 50% of that in the
 anadromous Atlantic salmon within the same river. The genetic
 differentiation (FST) between småblank and the anadromous population was
 0.24. This is similar to the differentiation between anadromous Atlantic
 salmon in Europe and North America. Microsatellite analyses identified
 three genetic subpopulations within småblank, each with an effective
 population size Ne of a few hundred individuals. There was no evidence of
 reduced heterozygosity and allelic richness in contemporary samples
 (2005–2008) compared with historical samples (1955–56 and 1978–79).
 However, there was a reduction in genetic differentiation between sampling
 localities over time. SNP data supported the differentiation of småblank
 into subpopulations and revealed downstream asymmetric gene flow between
 subpopulations. In spite of this, genetic variation was not higher in the
 lower than in the upper areas. The meta-population structure of småblank
 probably maintains genetic variation better than one panmictic population
 would do, as long as gene flow among subpopulations is maintained.
 Småblank is a unique endemic island population of Atlantic salmon. It is
 in a precarious situation due to a variety of anthropogenic impacts on its
 restricted habitat area. Thus, maintaining population size and avoiding
 further habitat fragmentation are important.
description: Salmo_salar_for_DRYADMicrosatellite genotype data for 312 specimens of Atlantic salmon at eight microsatellite loci
DOI: 10.5061/dryad.6j90jp8
title: Data from: Increasing photoperiod stimulates initiation of spring migratory behaviour and physiology in a facultative migrant, the pine siskin

description: The transition to a migratory state involves coordinated changes in
 physiology and behaviour. In species with regular, predictable (obligate)
 migrations, increasing day length triggers the expression of a spring
 migratory state and androgens play an important role in stimulating its
 development. In contrast, we know very little about the environmental cues
 and endocrine mechanisms that regulate migration in species with less
 predictable (facultative) migrations. Here, we tested whether photoperiod
 stimulates a migratory state in a facultative nomadic migrant, the pine
 siskin (Spinus pinus). We exposed wintering birds to either a naturally
 increasing or short-day photoperiod and measured physiological and
 behavioural changes indicative of a migratory state. We also examined
 changes in circulating hormones that may play a role in the migratory
 transition. Natural-day, but not short-day, birds displayed physiological
 preparations for migration, including increases in fat deposition, and
 expressed increased levels of migratory restlessness. We found no evidence
 for a role of corticosterone in the migratory transition, but testosterone
 may be important. This study is the first experimental test of the role of
 photoperiod in regulating facultative migration and demonstrates that the
 predictive cue used by many obligate migrants to time spring migration is
 also important in a facultative migrant.
description: Pine siskin photoperiod
 dataReadme file and 4 data
 files that comprise the entire data set.
DOI: 10.5061/dryad.29g1b
title: Data from: Staying close to home? Genetic differentiation of rough-toothed dolphins near oceanic islands in the central Pacific Ocean

description: Rough-toothed dolphins have a worldwide tropical and subtropical
 distribution, yet little is known about the population structure and
 social organization of this typically open-ocean species. Although it has
 been assumed that pelagic dolphins range widely due to the lack of
 apparent barriers and unpredictable prey distribution, recent evidence
 suggests rough-toothed dolphins exhibit fidelity to some oceanic islands.
 Using the most comprehensively extensive dataset for this species to date,
 we assess the isolation and interchange of rough-toothed dolphins at the
 regional and oceanic scale within the central Pacific Ocean. Using mtDNA
 and microsatellite genotyping (nDNA), we analyzed samples of insular
 communities from the main Hawaiian (Kaua‘i n = 93, O‘ahu n = 9, Hawai‘i n
 = 57), French Polynesian (n = 70) and Samoan (n = 16) archipelagos, and
 pelagic samples off the Northwestern Hawaiian Islands (n = 18). An overall
 AMOVA indicated strong genetic differentiation among islands (mtDNA FST =
 0.265; p &lt; 0.001; nDNA FST = 0.038; p &lt; 0.001), as well as
 among archipelagos (mtDNA FST = 0.299; p &lt; 0.001; nDNA FST = 0.055;
 p &lt; 0.001). Shared haplotypes (n = 4) between the archipelagos may
 be a product of a relatively recent divergence and/or periodic exchange
 from poorly understood pelagic populations. Analyses using STRUCTURE and
 GENELAND identified four separate management units among archipelagos and
 within the Hawaiian Islands. These results confirm the presence of
 multiple insular populations within the Pacific and island-specific
 genetic isolation among populations attached to islands in each
 archipelago. Insular populations seem most prevalent where oceanographic
 conditions indicate high local productivity or a discontinuity with
 surrounding oligotrophic areas. Our findings have important implications
 for a little studied species that faces increasing anthropogenic threats
 around oceanic islands.
description: Haplotype frequencies of
 Steno bredanensis in the Central Pacific OceanHaplotype frequencies of
 Steno bredanensis in the Central Pacific Ocean. The islands where data was
 collected include Kauai, Hawaii, Oahu, Northwest Hawaiian Islands, Moorea,
 Raiatea (French Polynesia), Savaii, Upolo, Tutuila. The 23 haplotype
 sequences are available on Genbank.Steno hap frequencies
 dryad.xlsx
DOI: 10.5061/dryad.kq3c6
title: Data from: Multiple predator species alter prey behavior, population growth and a trophic cascade in a model estuarine food web

description: Predators can influence prey population dynamics by affecting prey
 behaviors with strong fitness consequences, with cascading effects on
 lower trophic levels. Here, we demonstrate that multiple predator species
 can nonconsumptively influence prey population growth and the strength of
 a trophic cascade in a model marine community. We exposed the herbivorous
 amphipod Ampithoe longimana to olfactory and visual cues from three common
 predators (pinfish, mud crabs, brown shrimp) singly and together in a
 multiple-predator assemblage to quantify the nonconsumptive effects (NCEs)
 of predator identity and the presence of multiple predators on prey
 population and community-level metrics. The presence of predator cues,
 particularly those of the pinfish and the multiple-predator treatments,
 decreased prey population growth and influenced primary and secondary
 production. To explore mechanisms underlying the observed NCEs in the
 experimental communities and their potential influence in the field, we
 quantified individual prey behavioral responses (changes in grazing rate,
 diet preference, dispersal, colonization) in the presence of predator
 cues. Predator cues decreased prey grazing, dispersal, and colonization
 but did not affect prey diet preference. Given the persistence of NCEs
 over time and the fact that trophic cascades are common features of marine
 systems, changes in marine predator communities may have widespread
 effects on predator–prey behavioral interactions with consequences for
 ecosystem function even in areas of weak predation pressure.
description: Ecological_Monographs_Data_for_DryadData for Ecological Monographs MS 11-2284. Multiple predator species alter prey behavior, population growth and a trophic cascade in a model estuarine food web by Pamela L. Reynolds and John F. Bruno. Data collected from laboratory, mesocosm and field experiments. Labels- Experiment: Experiment in manuscript (Community, Grazing, Dispersal, Colonization). Screen.ID; Cup.ID; Tub.ID: Sample specific identification number. Replicate: Experimental replicate. Treatment: Experimental treatment (No predators, Crab, Shrimp, Fish).
DOI: 10.5061/dryad.55f35
title: Data from: Land colonisation by fish is associated with predictable changes in life history

description: The colonisation of new environments is a central evolutionary process,
 yet why species make such transitions often remains unknown because of the
 difficulty in empirically investigating potential mechanisms. The most
 likely explanation for transitions to new environments is that doing so
 conveys survival benefits, either in the form of an ecological release or
 new ecological opportunity. Life history theory makes explicit predictions
 about how traits linked to survival and reproduction should change with
 shifts in age-specific mortality. We used these predictions to examine
 whether a current colonisation of land by fishes might convey survival
 benefits. We found that blenny species with more terrestrial lifestyles
 exhibited faster reproductive development and slower growth rates than
 species with more marine lifestyles; a life history trade off that is
 consistent with the hypothesis that mortality has become reduced in
 younger life stages on land. A plausible explanation for such a shift is
 that an ecological release or opportunity on land has conveyed survival
 benefits relative to the ancestral marine environment. More generally, our
 study illustrates how life history theory can be leveraged in novel ways
 to formulate testable predictions on why organisms might make transitions
 into novel environments.
description: PLATT-OECOLOGIA-2016-OECO-D-15-00685_growthData on the age and size of female fish for six species of Blennidae from GuamPLATT-OECOLOGIA-2016-OECO-D-15-00685_ovaryData on the weight of ovarian tissue, reproductive status and size of female fish for six species of Blennidae from GuamPLATT-OECOLOGIA-2016-OECO-D-15-00685_eggnumberData on the number of eggs and size of female fish for six species of Blennidae from GuamPLATT-OECOLOGIA-2016-OECO-D-15-00685_eggsizeData on the average size of eggs, development stage of those eggs and size of female fish for six species of Blennidae from Guam
DOI: 10.5061/dryad.96190
title: Data from: Population genomic analysis suggests strong influence of river network on spatial distribution of genetic variation in invasive saltcedar across the southwestern US

description: Understanding the complex influences of landscape and anthropogenic
 elements that shape the population genetic structure of invasive species
 provides insight into patterns of colonization and spread. The application
 of landscape genomics techniques to these questions may offer detailed,
 previously undocumented insights into factors influencing species
 invasions. We investigated the spatial pattern of genetic variation and
 the influences of landscape factors on population similarity in the
 invasive riparian shrub saltcedar (Tamarix L.) by analyzing 1,997
 genome-wide SNP markers for 259 individuals from 25 populations collected
 throughout the southwestern US. Our results revealed a broad-scale spatial
 genetic differentiation of saltcedar populations between the Colorado and
 Rio Grande river basins and identified potential barriers to population
 similarity along both river systems. River pathways most strongly
 contributed to population similarity. In contrast, low temperature and
 dams likely served as barriers to population similarity. We hypothesize
 that large-scale geographic patterns in genetic diversity resulted from a
 combination of early introductions from distinct populations, the
 subsequent influence of natural selection, dispersal barriers, and founder
 effects during range expansion.
description: Genetic, geographic and
 resistance distance matrix of Saltcedar (Tamarix L.)Tamarix_DistanceMatrix_forSubmission.csv
DOI: 10.5061/dryad.02k83
title: Data from: Clarifying life lost due to cold and heat: a new approach using annual time series.

description: Objective: To clarify whether deaths associated with hot and cold days are
 among the frail who would have died anyway in the next few weeks or
 months. Design: Time series regression analysis of annual deaths in
 relation to annual summaries of cold and heat. Setting: London, UK.
 Participants: 3 530 280 deaths from all natural causes among London
 residents between October 1949 and September 2006. Main outcome measures:
 Change in annual risk of death (all natural cause, cardiovascular and
 respiratory) associated with each additional 1°C of average cold (or heat)
 below (above) the threshold (18°C) across each year. Results: Cold years
 were associated with increased deaths from all causes. For each additional
 1° of cold across the year, all-cause mortality increased by 2.3% (95% CI
 0.7% to 3.8%), after adjustment for influenza and secular trends. The
 estimated association between hot years and all-cause mortality was very
 imprecise and thus inconclusive (effect estimate 1.7%, −2.9% to 6.5%).
 These estimates were broadly robust to changes in the way temperature and
 trend were modelled. Estimated risk increments using weekly data but
 otherwise comparable were cold: 2.0% (2.0% to 2.1%) and heat: 3.9% (3.4%
 to 3.8%). Conclusions: In this London annual series, we saw an association
 of cold with mortality which was broadly similar in magnitude to that
 found in published daily studies and our own weekly analysis, suggesting
 that most deaths due to cold were among individuals who would not have
 died in the next 6 months. The estimated association with heat was
 imprecise, with the CI including magnitudes found in daily studies but
 also including zero.
description: London annual analysis
 dataset_BMJ OpenDataset containing
 natural deaths (number of) and temperature (summary statistic) for London,
 October 1949 to September 2006.Data aggregated for each12 month period
 (October to September). Mortality data obtained from Registrar's
 weekly summaries (1949 to 1975) and Office for National Statistics (1976
 to 2006). Temperature data derived from baseline data courtesy of the
 British Atmospheric Data Centre. Excel 2010 file.London annual analysis
 core code_BMJ OpenSTATA core code to be
 used with London annual analysis dataset. STATA file.London annual analysis core
 code.do
DOI: 10.5061/dryad.5jg20
title: Data from: Quantifying thermal extremes and biological variation to predict evolutionary responses to changing climate

description: Central ideas from thermal biology, including thermal performance curves
 and tolerances, have been widely used to evaluate how changes in
 environmental means and variances generate changes in fitness, selection
 and microevolution in response to climate change. We summarize the
 opportunities and challenges for extending this approach to understanding
 the consequences of extreme climatic events. Using statistical tools from
 extreme value theory, we show how distributions of thermal extremes vary
 with latitude, time scale and climate change. Second, we review how
 performance curves and tolerances have been used to predict the fitness
 and evolutionary responses to climate change and climate gradients.
 Performance curves and tolerances change with prior thermal history and
 with time scale, complicating their use for predicting responses to
 thermal extremes. Third, we describe several recent case studies showing
 how infrequent extreme events can have outsized effects on the evolution
 of performance curves and heat tolerance. A key issue is whether thermal
 extremes affect reproduction or survival, and how these combine to
 determine overall fitness. We argue that a greater focus on tails—in the
 distribution of environmental extremes, and in the upper ends of
 performance curves—is needed to understand the consequences of extreme
 events.
description: GEV_ColiasTextR script for Colias butterfly analysis in text.GEV_Fig1R script for figure 1.GEV_Fig2R script for figure 2.GEV_Fig3R script for figure 3.GEV_Fig5R script for figure 5.