21 Works

Helpers compensate for age-related declines in parental care and offspring survival in a cooperatively breeding bird

Martijn Hammers, Sjouke Kingma, Lotte Van Boheemen, Alexandra Sparks, Terry Burke, Hannah Dugdale, David Richardson & Jan Komdeur
Offspring from elderly parents often have lower survival due to parental senescence. In cooperatively breeding species, where offspring care is shared between breeders and helpers, the alloparental care provided by helpers is predicted to mitigate the impact of parental senescence on offspring provisioning and, subsequently, offspring survival. We test this prediction using data from a long-term study on cooperatively breeding Seychelles warblers (Acrocephalus sechellensis). We find that the nestling-provisioning rate of female breeders declines with...

Data from: Telomere heritability and parental age at conception effects in a wild avian population

Alexandra Sparks, Lewis Spurgin, Marco Van Der Velde, Eleanor Fairfield, Jan Komdeur, Terry Burke, David Richardson & Hannah Dugdale
Individual variation in telomere length is predictive of health and mortality risk across a range of species. However, the relative influence of environmental and genetic variation on individual telomere length in wild populations remains poorly understood. Heritability of telomere length has primarily been calculated using parent–offspring regression which can be confounded by shared environments. To control for confounding variables, quantitative genetic ‘animal models’ can be used, but few studies have applied animal models in wild...

Transgenerational fitness effects of lifespan extension by dietary restriction in Caenorhabditis elegans

Edward Ivimey-Cook, Kris Sales, Hanne Carlsson, Simone Immler, Tracey Chapman & Alexei Maklakov
Dietary restriction increases lifespan in a broad variety of organisms and improves health in humans. However, long-term transgenerational consequences of dietary interventions are poorly understood. Here we investigated the effect of dietary restriction by temporary fasting (TF) on mortality risk, age-specific reproduction and fitness across three generations of descendants in C. elegans. We show that while TF robustly reduces mortality risk and improves late-life reproduction of the individuals subject to TF (P0), it has a...

Ageing as early-life inertia: disentangling life-history trade-offs along a lifetime of an individual

Edward Ivimey-Cook, Hanne Carlsson, Elizabeth Duxbury, Nathan Edden, Kris Sales & Alexei Maklakov
The theory that ageing evolves because of competitive resource allocation between the soma and the germline has been challenged by studies showing that somatic maintenance can be improved without impairing reproduction. However, it has been suggested that cost-free improvement in somatic maintenance is possible only under a narrow range of benign conditions. Here we show that experimental downregulation of insulin/IGF-1 signalling (IIS) in C. elegans nematodes, a robustly reproducible lifespan and healthspan-extending treatment, reduces fitness...

Data from: Fertility and mortality impacts of experimental heatwave conditions on different life stages and their reproductive recovery in a model insect

Matthew Gage
With climate change creating a more volatile atmosphere, heatwaves will become stronger and more frequent, influencing living systems. Using the flour beetle Tribolium castaneum, we measure the impacts of experimental heatwaves on reproduction and survival across different insect life stages, and the extent and pace of any recovery. We exposed larvae, pupae, juvenile and mature adult male beetles to 5-day heatwaves at 40°C or 42°C, a few degrees above the 35°C optimum for this species’...

Inbreeding reduces fitness of seed beetles under thermal stress

Edward Ivimey-Cook, Sophie Bricout, Victoria Candela, Alexei Maklakov & Elena Berg
Human-induced environmental change can influence populations both at the global level through climatic warming and at the local level through habitat fragmentation. As populations become more isolated, they can suffer from high levels of inbreeding which contributes to a reduction in fitness, termed inbreeding depression. However, it is still unclear if this increase in homozygosity also results in a corresponding increase in sensitivity to stressful conditions, which could intensify the already detrimental effects of environmental...

Data from: Socio-ecological conditions and female infidelity in the Seychelles warbler

Sara Raj Pant, Jan Komdeur, Terry A. Burke, Hannah L. Dugdale & David S. Richardson
Within socially monogamous breeding systems, levels of extra-pair paternity can vary not only between species, populations and individuals, but also across time. Uncovering how different extrinsic conditions (ecological, demographic and social) influence this behavior will help shed light on the factors driving its evolution. Here, we simultaneously address multiple socio-ecological conditions potentially influencing female infidelity in a natural population of the cooperatively breeding Seychelles warbler, Acrocephalus sechellensis. Our contained study population has been monitored for...

Functional biogeography of Neotropical moist forests: trait-climate relationships and assembly patterns of tree communities

Bruno Pinho, Marcelo Tabarelli, Cajo Ter Braak, S. J. Wright, Victor Arroyo-Rodriguez, Maíra Benchimol, Bettina Engelbrecht, Simon Pierce, Peter Hietz, Bráulio Santos, Carlos Peres, Sandra Müller, Ian Wright, Frans Bongers, Madelon Lohbeck, Ülo Niinemets, Martijn Slot, Steven Jansen, Davi Jamelli, Renato Augusto Ferreira De Lima, Nathan Swenson, Richard Condit, Jos Barlow, Ferry Slik, Manuel Hernández-Ruedas … & Felipe Melo
Aim: Here we examine the functional profile of regional tree species pools across the latitudinal distribution of Neotropical moist forests, and test trait-climate relationships among local communities. We expected opportunistic strategies (acquisitive traits, small seeds) to be overrepresented in species pools further from the equator due to long-term instability, but also in terms of abundance in local communities in currently wetter, warmer and more seasonal climates. Location: Neotropics. Time period: Recent. Major taxa studied: Trees....

Multispectral airborne imagery and associated classifications, training data and validation data, for mapping nectar-rich floral resources for pollinators, Northamptonshire, UK 2020

S.B. Barnsley, A.A. Lovett & L.V. Dicks
Data presented here include imagery with ground-sampling distances of 3 cm and 7 cm for March 2019, May 2019 and July 2019. Also included are the corresponding ground-truth training and verification data presented as shapefiles, as well as the classification output and other data relevant to the project such as the width of floral units. The imagery was acquired by Spectrum Aviation using A6D-100c (50mm) Hasselblad cameras with bayer filters, mounted on a Sky Arrow...

Causes and consequences of telomere lengthening in a wild vertebrate population

Thomas Brown, David Richardson, Lewis Spurgin, Hannah Dugdale, Jan Komdeur, Terry Burke & David Richardson
Telomeres have been advocated to be important markers of biological age in evolutionary and ecological studies. Telomeres usually shorten with age, and shortening is frequently associated with environmental stressors and increased subsequent mortality. Telomere lengthening – an apparent increase in telomere length between repeated samples from the same individual – also occurs. However, the exact circumstances, and consequences, of telomere lengthening are poorly understood. Using longitudinal data from the Seychelles warbler (Acrocephalus sechellensis), we tested...

Data from: Contemporary evolution of the innate immune receptor gene TLR3 in an isolated vertebrate population

Charli Davies, Martin Taylor, Martijn Hammers, Terry Burke, Jan Komdeur, Hannah Dugdale & David Richardson
Understanding where genetic variation exists, and how it influences fitness within populations is important from an evolutionary and conservation perspective. Signatures of past selection suggest that pathogen-mediated balancing selection is a key driver of immunogenetic variation, but studies tracking contemporary evolution are needed to help resolve the evolutionary forces and mechanism at play. Previous work in a bottlenecked population of Seychelles warblers (Acrocephalus sechellensis) show that functional variation has been maintained at the viral-sensing Toll-like...

The Enterprise, a massive transposon carrying Spok meiotic drive genes

Sandra Lorena Ament-Velásquez, Aaron A. Vogan, Eric Bastiaans, Ola Wallerman, Sven J. Saupe, Alexander Suh & Hanna Johannesson
The genomes of eukaryotes are full of parasitic sequences known as transposable elements (TEs). Most TEs studied to date are relatively small (50 – 12000 bp), but can contribute to very large proportions of genomes. Here we report the discovery of a putative giant tyrosine-recombinase-mobilized DNA transposon, Enterprise, from the model fungus Podospora anserina. Previously, we described a large genomic feature called the Spok block which is notable due to the presence of meiotic drive...

Beneficial cumulative effects of old parental age on offspring fitness

Laura Travers, Hanne Carlsson, Martin Lind & Alexei Maklakov
Old parental age is commonly associated with negative effects on offspring life-history traits. Such parental senescence effects are predicted to have a cumulative detrimental effect over successive generations. However, old parents may benefit from producing higher quality offspring when these compete for seasonal resources. Thus, old parents may choose to increase investment in their offspring, thereby producing fewer but larger and more competitive progeny. We show that Caenorhabditis elegans hermaphrodites increase parental investment with advancing...

Data from: Genomic variation, population history and within-archipelago adaptation between island bird populations

Claudia A. Martin, Claire Armstrong, Juan Carlos Illera, Brent C. Emerson, David Richardson & Lewis G. Spurgin
Oceanic island archipelagos provide excellent models to understand evolutionary processes. Colonisation events and gene flow can interact with selection to shape genetic variation at different spatial scales. Landscape-scale variation in biotic and abiotic factors may drive fine-scale selection within islands, while long-term evolutionary processes may drive divergence between distantly related populations. Here, we examine patterns of population history and selection between recently diverged populations of the Berthelot’s pipit (Anthus berthelotii), a passerine endemic to three...

No severe genetic bottleneck in a rapidly range-expanding bumblebee pollinator

Ryan Edward Brock, Liam Crowther, David Wright, David Richardson, Claire Carvell, Martin Taylor & Andrew Bourke
Genetic bottlenecking can limit the success of populations colonising new ranges. However, successful colonisations can occur despite bottlenecking, a phenomenon known as the genetic paradox of invasion. Eusocial Hymenoptera such as bumblebees (Bombus spp.) should be particularly vulnerable to genetic bottlenecking, since homozygosity at the sex-determining locus leads to costly diploid male production. The Tree Bumblebee (B. hypnorum) has rapidly colonised the UK since 2001 and has been highlighted as exemplifying the genetic paradox of...

Data from: Transposable element annotation in non-model species - on the benefits of species specific repeat libraries using semi-automated EDTA and DeepTE de novo pipelines

Ellen Bell, Christopher Butler & Martin Taylor
Transposable elements (TEs) are significant genomic components which can be detected either through sequence homology against existing databases or de novo, with the latter potentially reducing underestimates of TE abundance. Here, we describe the semi-automated generation of a de-novo TE library which combines the newly described EDTA pipeline and DeepTE classifier in a non-model teleost (Corydoras sp. C115). We assess performance using both genomic and transcriptomic input by five metrics: (i) abundance (ii) composition (iii)...

Structural equation modeling reveals determinants of fitness in a cooperatively breeding bird

Michela Busana, Franz J Weissing, Martijn Hammers, Joke Bakker, Hannah L Dugdale, Sara Raj Pant, David S Richardson, Terrence A Burke & Jan Komdeur
Even in well-studied organisms, it is often challenging to uncover the social and environmental determinants of fitness. Typically, fitness is determined by a variety of factors that act in concert, thus forming complex networks of causal relationships. Moreover, even strong correlations between social and environmental conditions and fitness components may not be indicative of direct causal links, as the measured variables may be driven by unmeasured (or unmeasurable) causal factors. Standard statistical approaches, like multiple...

Standardised site-level trends, mean productivity, and survival for migrant (arid and humid-zone) and resident species breeding across Europe

Catriona Morrison
Wildlife conservation policies directed at common and widespread, but declining, species are difficult to design and implement effectively, as multiple environmental changes are likely to contribute to population declines. Conservation actions ultimately aim to influence demographic rates, but targeting actions towards feasible improvements in these is challenging in widespread species with ranges that encompass a wide range of environmental conditions. Across Europe, sharp declines in the abundance of migratory landbirds have driven international calls for...

Eddy covariance flux measurements during Arctic cruises JR18006 and JR18007 in summer 2019

Thomas G Bell, Mingxi Yang & Yuanxu Dong
This is the high frequency (10 Hz) eddy covariance (EC) measurements which mainly contain the wind data, ship motion data, gas concentration data and the underway measurements. These data were measured on summer 2019 during two Arctic cruises JR18006 (from and to Aberdeen, UK and visited the Barents Sea ) and JR18007 (from Harwich, UK to Svalbard and visited the Greenland Sea). These EC data can be used to directly calculate the air-sea CO2 and...

Parasite counts for Corydoras maculifer and Corydoras araguaiaensis

Ellen Bell & Martin Taylor
The evolutionary impacts of whole genome duplication events are still unclear. We collected parasite count data and immune gene molecular data for Toll like receptor (TLR) 1 and TLR2 in two catfish species; Corydoras maculifer (diploid) and Corydoras araguaiaensis (putative allotetraploid). Our aim was to compare parasite load and immune gene diversity between these two species.

Ladybird beetles' life history traits

Jean Louis RGM Hemptinne, Emilie Lecompte, Arnaud Sentis, Anthony F. G. Dixon & Alexandra Magro
1. The balance between risk and benefit of exploiting resources drives life history evolution in organisms. Predators are naturally recognized as major drivers of the life history evolution of their prey. Although prey may also influence the life history evolution of their predators in the context of an evolutionary arms race, there is far more evidence of the role of predators than of prey. 2. The goal of this study was to investigate the role...

Registration Year

  • 2021
    21

Resource Types

  • Dataset
    21

Affiliations

  • University of East Anglia
    21
  • University of Groningen
    6
  • University of Sheffield
    5
  • University of Leeds
    3
  • Wageningen University & Research
    3
  • Uppsala University
    2
  • National Research Institute for Agriculture, Food and Environment
    1
  • University of Oviedo
    1
  • Field Museum of Natural History
    1
  • Federal University of Paraíba
    1