959 Works

Data from: Boom and bust: ancient and recent diversification in bichirs (Polypteridae: Actinopterygii), a relictual lineage of ray-finned fishes

Thomas J. Near, Alex Dornburg, Masayoshi Tokita, Dai Suzuki, Matthew C. Brandley & Matt Friedman
Understanding the history that underlies patterns of species richness across the Tree of Life requires an investigation of the mechanisms that not only generate young species-rich clades, but also those that maintain species-poor lineages over long stretches of evolutionary time. However, diversification dynamics that underlie ancient species-poor lineages are often hidden due to a lack of fossil evidence. Using information from the fossil record and time calibrated molecular phylogenies, we investigate the history of lineage...

Data from: Advancing population ecology with integral projection models: a practical guide

Cory Merow, Johan P. Dalgren, C. Jessica E. Metcalf, Dylan Z. Childs, M. E. K. Evans, Eelke Jongejans, Sydne Record, Mark Rees, Roberto Salguero-Gómez, Sean M. McMahon, Margaret E.K. Evans & Johan P. Dahlgren
Integral Projection Models (IPMs) use information on how an individual's state influences its vital rates - survival, growth and reproduction - to make population projections. IPMs are constructed from regression models predicting vital rates from state variables (e.g., size or age) and covariates (e.g., environment). By combining regressions of vital rates, an IPM provides mechanistic insight into emergent ecological patterns such as population dynamics, species geographic distributions, or life history strategies. Here, we review important...

Data from: Spatial structure and interspecific cooperation: theory and an empirical test using the mycorrhizal mutualism

Erik Verbruggen, Claire El Mouden, Jan Jansa, Geert Akkermans, Heike Bücking, Stuart A. West & E. Toby Kiers
Explaining mutualistic cooperation between species remains a major challenge for evolutionary biology. Why cooperate if defection potentially reaps greater benefits? It is commonly assumed that spatial structure (limited dispersal) aligns the interests of mutualistic partners. But does spatial structure consistently promote cooperation? Here, we formally model the role of spatial structure in maintaining mutualism. We show theoretically that spatial structure can actually disfavour cooperation by limiting the suite of potential partners. The effect of spatial...

Data from: The global distribution of diet breadth in insect herbivores

Matthew L. Forister, Vojtech Novotny, Anna K. Panorska, Leontine Baje, Yves Basset, Philip T. Butterill, Lukas Cizek, Phyllis D. Coley, Francesca Dem, Ivone R. Diniz, Pavel Drozd, Mark Fox, Andrea E. Glassmire, Rebecca Hazen, Jan Hrcek, Joshua P. Jahner, Ondrej Kaman, Tomasz J. Kozubowski, Thomas Kursar, Owen T. Lewis, John Lill, Robert J. Marquis, Scott E. Miller, Helena C. Morais, Masashi Murakami … & Lee A. Dyer
Understanding variation in resource specialization is important for progress on issues that include coevolution, community assembly, ecosystem processes, and the latitudinal gradient of species richness. Herbivorous insects are useful models for studying resource specialization, and the interaction between plants and herbivorous insects is one of the most common and consequential ecological associations on the planet. However, uncertainty persists regarding fundamental features of herbivore diet breadth, including its relationship to latitude and plant species richness. Here...

Data from: Interspecific social networks promote information transmission in wild songbirds

Damien R. Farine, Lucy M. Aplin, Ben C. Sheldon & William Hoppitt
Understanding the functional links between social structure and population processes is a central aim of evolutionary ecology. Multiple types of interactions can be represented by networks drawn for the same population, such as kinship, dominance or affiliative networks, but the relative importance of alternative networks in modulating population processes may not be clear. We illustrate this problem, and a solution, by developing a framework for testing the importance of different types of association in facilitating...

Data from: Experimental manipulation of avian social structure reveals segregation is carried over across contexts

Josh A. Firth & Ben C. Sheldon
Our current understanding of animal social networks is largely based on observations or experiments that do not directly manipulate associations between individuals. Consequently, evidence relating to the causal processes underlying such networks is limited. By imposing specified rules controlling individual access to feeding stations, we directly manipulated the foraging social network of a wild bird community, thus demonstrating how external factors can shape social structure. We show that experimentally imposed constraints were carried over into...

Data from: Exposure to parasites increases promiscuity in a freshwater snail

Deanna M. Soper, Kayla C. King, Daniela Vergara & Curt M. Lively
Under the Red Queen hypothesis, outcrossing can produce genetically variable progeny, which may be more resistant, on average, to locally adapted parasites. Mating with multiple partners may enhance this resistance by further increasing the genetic variation among offspring. We exposed Potamopyrgus antipodarum to the eggs of a sterilising, trematode parasite and tested whether this altered mating behaviour. We found that exposure to parasites increased the number of snail mating pairs and the total number of...

Data from: Cryptic ecology among host generalist Campylobacter jejuni in domestic animals

Samuel K. Sheppard, Lu Cheng, Guillaume Méric, Caroline P. A. De Haan, Ann-Katrin Llarena, Pekka Marttinen, Ana Vidal, Anne Ridley, Felicity Clifton-Hadley, Thomas R. Connor, Norval J. C. Strachan, Ken Forbes, Frances M. Colles, Keith A. Jolley, Stephen D. Bentley, Martin C. J. Maiden, Marja-Liisa Hänninen, Julian Parkhill, William P. Hanage & Jukka Corander
Homologous recombination between bacterial strains is theoretically capable of preventing the separation of daughter clusters, and producing cohesive clouds of genotypes in sequence space. However, numerous barriers to recombination are known. Barriers may be essential such as adaptive incompatibility, or ecological, which is associated with the opportunities for recombination in the natural habitat. Campylobacter jejuni is a gut colonizer of numerous animal species and a major human enteric pathogen. We demonstrate that the two major...

Data from: Global distribution maps of the Leishmaniases

David M. Pigott, Samir Bhatt, Nick Golding, Kirsten A. Duda, Katherine E. Battle, Oliver J. Brady, Jane P. Messina, Yves Balard, Patrick Bastien, Francine Pratlong, John S. Brownstein, Clark C Freifeld, Sumiko R. Mekaru, Peter W. Gething, Dylan B. George, Monica F. Myers, Richard Reithinger & Simon I. Hay
The leishmaniases are vector-borne diseases that have a broad global distribution throughout much of the Americas, Africa and Asia. Despite representing a significant public health burden, our understanding of the global distribution of the leishmaniases remains vague, reliant upon expert opinion and limited to poor spatial resolution. A global assessment of the consensus of evidence for leishmaniasis was performed at a sub-national level by aggregating information from a variety of sources. A database of records...

Data from: Are ant supercolonies crucibles of a new major transition in evolution?

Patrick Kennedy, Tobias Uller & Heikki Helanterä
The biological hierarchy of genes, cells, organisms and societies is a fundamental reality in the living world. This hierarchy of entities did not arise ex nihilo at the origin of life, but rather has been serially generated by a succession of critical events known as ‘evolutionary transitions in individuality’ (ETIs). Given the sequential nature of ETIs, it is natural to look for candidates to form the next hierarchical tier. We analyse claims that these candidates...

Data from: Multiplicity of infection does not accelerate infectivity evolution of viral parasites in laboratory microcosms

Alex R. Hall, Pauline D. Scanlan, Helen Leggett & Angus Buckling
Coinfection with multiple parasite genotypes (multiplicity of infection) creates within-host competition and opportunities for parasite recombination, and is therefore predicted to be important for both parasite and host evolution. We tested for a difference in the infectivity of viral parasites (lytic phage Φ2) and resistance of their bacterial hosts (Pseudomonas fluorescens SBW25) under both high and low multiplicity of infection (MOI) during coevolution in laboratory microcosms. Results show that MOI has no effect on infectivity...

Data from: Competition and constraint drove Cope's rule in the evolution of giant flying reptiles

Roger B. J. Benson, Rachel A. Frigot, Anjali Goswami, Brian Andres & Richard J. Butler
The pterosaurs, Mesozoic flying reptiles, attained wingspans of more than 10 m that greatly exceed the largest birds and challenge our understanding of size limits in flying animals. Pterosaurs have been used to illustrate Cope’s rule, the influential generalization that evolutionary lineages trend to increasingly large body sizes. However, unambiguous examples of Cope’s rule operating on extended timescales in large clades remain elusive, and the phylogenetic pattern and possible drivers of pterosaur gigantism are uncertain....

Data from: Can natural selection favour altruism between species?

Gregory A. K. Wyatt, Stuart A. West & Andy Gardner
Darwin suggested that the discovery of altruism between species would annihilate his theory of natural selection. However, it has not been formally shown whether between-species altruism can evolve by natural selection, or why this could never happen. Here, we develop a spatial population genetic model of two interacting species, showing that indiscriminate between species helping can be favoured by natural selection. We then ask if this helping behaviour constitutes altruism between species, using a linear-regression...

Data from: Changes in host-parasitoid food web structure with elevation

Sarah C. Maunsell, Roger L. Kitching, Chris J. Burwell & Rebecca J. Morris
Gradients in elevation are increasingly used to investigate how species respond to changes in local climatic conditions. While many studies have shown elevational patterns in species richness and turnover, little is known about how food web structure is affected by elevation. Contrasting responses of predator and prey species to elevation may lead to changes in food web structure. We investigated how the quantitative structure of a herbivore-parasitoid food web changes with elevation in Australian subtropical...

Data from: Widespread primary, but geographically restricted secondary, human introductions of wall lizards, Podarcis muralis

Sozos N. Michaelides, Geoffrey M. While, Natalia Zajac & Tobias Uller
Establishing the introduction pathways of alien species is a fundamental task in invasion biology. The common wall lizard, Podarcis muralis, has been widely introduced outside of its native range in both Europe and North America, primarily through escaped pets or deliberate release of animals from captive or wild populations. Here, we use Bayesian clustering, approximate Bayesian computation (ABC) methods and network analyses to reconstruct the origin and colonization history of 23 non-native populations of wall...

Data from: Theoretical constraints on the precision and age range of rehydroxylation dating

Vincent J. Hare
Accurate and precise dating methods are of central importance to archaeology, palaeontology and earth science. This paper investigates the expected precision and age range of rehydroxylation dating, a recently proposed technique for fired clays. An expression for combined measurement uncertainty is presented, which takes into account all significant sources of experimental uncertainty. Numerical simulations are performed for comparison. Combined measurement uncertainties of approximately 5% with respect to the age of the ceramic should be possible...

Data from: The role of social and ecological processes in structuring animal populations: a case study from automated tracking of wild birds

Damien R. Farine, Joshua Firth, Lucy M. Aplin, Ross A. Crates, Antica Culina, Colin J. Garroway, Lindall R. Kidd, Nicole D. Milligan, Ioannis Psorakis, Reinder Radersma, Brecht Verhelst, Bernhard Voelkl, Ben C. Sheldon, C. A. Hinde & J. A. Firth
Both social and ecological factors influence population process and structure, with resultant consequences for phenotypic selection on individuals. Understanding the scale and relative contribution of these two factors is thus a central aim in evolutionary ecology. In this study, we develop a framework using null models to identify the social and spatial patterns that contribute to phenotypic structure in a wild population of songbirds. We used automated technologies to track 1053 individuals that formed 73...

Data from: The influence of nonrandom extra-pair paternity on heritability estimates derived from wild pedigrees

Josh A. Firth, Jarrod D. Hadfield, Anna W. Santure, Jon Slate & Ben C. Sheldon
Quantitative genetic analysis is often fundamental for understanding evolutionary processes in wild populations. Avian populations provide a model system due to the relative ease of inferring relatedness amongst individuals through observation. However, extra-pair paternity (EPP) creates erroneous links within the social pedigree. Previous work has suggested this causes minor underestimation of heritability if paternal misassignment is random and hence not influenced by the trait being studied. Nevertheless, much literature suggests numerous traits are associated with...

Data from: Global database of matched Plasmodium falciparum and P. vivax incidence and prevalence records from 1985–2013

Katherine E. Battle, Carlos A. Guerra, Nick Golding, Kirsten A. Duda, Ewan Cameron, Rosalind E. Howes, Iqbal R. F. Elyazar, J. Kevin Baird, , Peter W. Gething, David L. Smith & Simon I. Hay
Measures of clinical incidence are necessary to help estimate the burden of a disease. Incidence is a metric not commonly measured in malariology because the longitudinal surveys required are costly and labour intensive. This database is an effort to collate published incidence records obtained using active case detection for Plasmodium falciparum and Plasmodium vivax malaria. The literature search methods, data abstraction procedures and data processing procedures are described here. A total of 1,680 spatio-temporally unique...

Data from: Cell shape and the microenvironment regulate nuclear translocation of NF-kappaB in breast epithelial and tumor cells

Julia E. Sero, Heba Zuhair Sailem, Rico Chandra Ardy, Hannah Almuttaqi, Tongli Zhang & Chris Bakal
Although a great deal is known about the signaling events that promote nuclear translocation of NF‐κB, how cellular biophysics and the microenvironment might regulate the dynamics of this pathway is poorly understood. In this study, we used high‐content image analysis and Bayesian network modeling to ask whether cell shape and context features influence NF‐κB activation using the inherent variability present in unperturbed populations of breast tumor and non‐tumor cell lines. Cell–cell contact, cell and nuclear...

Data from: The Lyme disease pathogen has no effect on the survival of its rodent reservoir host

Maarten J. Voordouw, Shelly Lachish & Marc C. Dolan
Zoonotic pathogens that cause devastating morbidity and mortality in humans may be relatively harmless in their natural reservoir hosts. The tick-borne bacterium Borrelia burgdorferi causes Lyme disease in humans but few studies have investigated whether this pathogen reduces the fitness of its reservoir hosts under natural conditions. We analyzed four years of capture-mark-recapture (CMR) data on a population of white-footed mice, Peromyscus leucopus, to test whether B. burgdorferi and its tick vector affect the survival...

Data from: The phylogenetic utility and functional constraint of microRNA flanking sequences

Nathan J. Kenny, Yung Wa Sin, Alexander Hayward, Jordi Paps, Ka Hou Chu & Jerome H. L. Hui
MicroRNAs (miRNAs) have recently risen to prominence as novel factors responsible for post-transcriptional regulation of gene expression. miRNA genes have been posited as highly conserved in the clades in which they exist. Consequently, miRNAs have been used as rare genome change characters to estimate phylogeny by tracking their gain and loss. However, their short length (21–23 bp) has limited their perceived utility in sequenced-based phylogenetic inference. Here, using reference taxa with established phylogenetic relationships, we...

Data from: Adaptive responses to cool climate promotes persistence of a non-native lizard

Geoffrey M. While, Joseph Williamson, Graham Prescott, Terézia Horváthová, Belén Fresnillo, Nicholas J. Beeton, Ben Halliwell, Sozos Michaelides, Tobias Uller & T. Horvathova
Successful establishment and range expansion of non-native species often require rapid accommodation of novel environments. Here, we use common-garden experiments to demonstrate parallel adaptive evolutionary response to a cool climate in populations of wall lizards (Podarcis muralis) introduced from southern Europe into England. Low soil temperatures in the introduced range delay hatching, which generates directional selection for a shorter incubation period. Non-native lizards from two separate lineages have responded to this selection by retaining their...

Data from: Variation in promiscuity and sexual selection drives avian rate of Faster-Z evolution

Alison E. Wright, Peter W. Harrison, Fabian Zimmer, Stephen H. Montgomery, Marie A. Pointer & Judith E. Mank
Higher rates of coding sequence evolution have been observed on the Z chromosome relative to the autosomes across a wide range of species. However, despite a considerable body of theory, we lack empirical evidence explaining variation in the strength of the Faster-Z Effect. To assess the magnitude and drivers of Faster-Z Evolution, we assembled six de novo transcriptomes, spanning 90 million years of avian evolution. Our analysis combines expression, sequence and polymorphism data with measures...

Data from: Intermittent breeding and constraints on litter size: consequences for effective population size per generation (Ne) and per reproductive cycle (Nb)

Robin S. Waples & Tiago Antao
In iteroparous species, it is easier to estimate Nb = effective number of breeders in one reproductive cycle than Ne = effective population size per generation. Nb can be used as a proxy for Ne and also can provide crucial insights into eco-evolutionary processes that occur during reproduction. We used analytical and numerical methods to evaluate effects of intermittent breeding and litter/clutch size on inbreeding Nb and Ne. Fixed or random litter sizes ≥ 3...

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  • University of Oxford
  • Shanghai Jiao Tong University
  • Huazhong University of Science and Technology
  • Imperial College London
  • Peking University
  • University of Sheffield
  • University of Chinese Academy of Sciences
  • Zhejiang University
  • University of Electronic Science and Technology of China
  • Capital Medical University