33 Works

Data from: Genetic and environmental variation in condition, cutaneous immunity, and haematocrit in house wrens

Scott K. Sakaluk, Alastair J. Wilson, E. Keith Bowers, L. Scott Johnson, Brian S. Masters, Bonnie G.P. Johnson, Laura A. Vogel, Anna M. Forsman & Charles F. Thompson
Background: Life-history studies of wild bird populations often focus on the relationship between an individual’s condition and its capacity to mount an immune response, as measured by a commonly-employed assay of cutaneous immunity, the PHA skin test. In addition, haematocrit, the packed cell volume in relation to total blood volume, is often measured as an indicator of physiological performance. A multi-year study of a wild population of house wrens has recently revealed that those exhibiting...

Data from: Social effects on foraging behaviour and success depend on local environmental conditions

Harry H. Marshall, Alecia J. Carter, Alexandra Ashford, J. Marcus Rowcliffe & Guy Cowlishaw
In social groups, individuals' dominance rank, social bonds, and kinship with other group members have been shown to influence their foraging behavior. However, there is growing evidence that the particular effects of these social traits may also depend on local environmental conditions. We investigated this by comparing the foraging behavior of wild chacma baboons, Papio ursinus, under natural conditions and in a field experiment where food was spatially clumped. Data were collected from 55 animals...

Data from: Population genetic structure and direct observations reveal sex-reversed patterns of dispersal in a cooperative bird

Xavier A. Harrison, Andrew J. Young & Jennifer E. York
Sex-biased dispersal is pervasive and has diverse evolutionary implications, but the fundamental drivers of dispersal sex biases remain unresolved. This is due in part to limited diversity within taxonomic groups in the direction of dispersal sex biases, which leaves hypothesis testing critically dependent upon identifying rare reversals of taxonomic norms. Here we use a combination of observational and genetic data to demonstrate a rare reversal of the avian sex-bias in dispersal in the cooperatively breeding...

Data from: Environmental heterogeneity, multivariate sexual selection and genetic constraints on cuticular hydrocarbons in Drosophila simulans

Fiona C. Ingleby, David J. Hosken, Kristy Flowers, Michael F. Hawkes, Sarah M. Lane, James Rapkin, Clarissa M. House, Manmohan D. Sharma & John Hunt
Sexual selection is responsible for the evolution of many elaborate traits, but sexual trait evolution could be influenced by opposing natural selection as well as genetic constraints. As such, the evolution of sexual traits could depend heavily on the environment if trait expression and attractiveness vary between environments. Here, male Drosophila simulans were reared across a range of diets and temperatures, and we examined differences between these environments in terms of (1) the expression of...

Data from: Self-recognition in crickets via on-line processing

Alexandra Capodeanu-Nägler, James Rapkin, Scott K. Sakaluk, John Hunt & Sandra Steiger
Self-referent phenotype matching, the ability of animals to use aspects of their own phenotype as a referent in discrimination decisions, is believed to play a significant role in nepotistic interactions and mate choice in a wide range of taxa [1]. An individual’s ability to assess the similarity between its own phenotype and that of the individuals it encounters can provide a reliable measure of relatedness, thereby facilitating inbreeding avoidance, optimal outbreeding or altruistic behavior towards...

Data from: High rates of growth recorded for hawksbill sea turtles in Anegada, British Virgin Islands

Lucy A. Hawkes, Andrew McGowan, Annette C. Broderick, Shannon Gore, Damon Wheatley, Jim White, Matthew J. Witt & Brendan J. Godley
Management of species of conservation concern requires knowledge of demographic parameters, such as rates of recruitment, survival, and growth. In the Caribbean, hawksbill turtles (Eretmochelys imbricata) have been historically exploited in huge numbers to satisfy trade in their shells and meat. In the present study, we estimated growth rate of juvenile hawksbill turtles around Anegada, British Virgin Islands, using capture–mark–recapture of 59 turtles over periods of up to 649 days. Turtles were recaptured up to...

Data from: Pan-Atlantic analysis of the overlap of a highly migratory species, the leatherback turtle, with pelagic longline fisheries

Sabrina Fossette, Matthew J. Witt, Philip Miller, Michel A. Nalovic, Diego Albareda, Antonio P. Almeida, Annette C. Broderick, Didiher Chacón-Chaverri, Michael S. Coyne, Andres Domingo, Scott Eckert, Daniel Evans, Alejandro Fallabrino, Sandra Ferraroli, Angela Formia, Bruno Giffoni, Graeme C. Hays, George Hughes, Laurent Kelle, Aimee Leslie, Milagros López-Mendilaharsu, Paolo Luschi, Laura Prosdocimi, Sergio Rodriguez-Heredia, Avanaisa Turny … & Brendan J. Godley
Large oceanic migrants play important roles in ecosystems, yet many species are of conservation concern as a result of anthropogenic threats, of which incidental capture by fisheries is frequently identified. The last large populations of the leatherback turtle, Dermochelys coriacea, occur in the Atlantic Ocean, but interactions with industrial fisheries could jeopardize recent positive population trends, making bycatch mitigation a priority. Here, we perform the first pan-Atlantic analysis of spatio-temporal distribution of the leatherback turtle...

Data from: Protein and carbohydrate intake influence sperm number and male fertility in male cockroaches but not sperm viability

Harriet Bunning, James Rapkin, Catharine Ruth Archer, Kim Jensen, John Hunt & Laurence Belcher
It is commonly assumed that because males produce many, tiny sperm, they are cheap to produce. Recent work, however, suggests that sperm production is not cost-free. If sperm are costly to produce, sperm number and/or viability should be influenced by diet, and this has been documented in numerous species. Yet few studies have examined the exact nutrients responsible for mediating these effects. Here, we quantify the effects of protein (P) and carbohydrate (C) intake on...

Data from: Using social parasitism to test reproductive skew models in a primitively eusocial wasp

Jonathan P. Green, Michael A. Cant & Jeremy Field
Remarkable variation exists in the distribution of reproduction (skew) among members of cooperatively breeding groups, both within and between species. Reproductive skew theory has provided an important framework for understanding this variation. In the primitively eusocial Hymenoptera, two models have been routinely tested: concessions models, which assume complete control of reproduction by a dominant individual, and tug-of-war models, which assume on-going competition among group members over reproduction. Current data provide little support for either model,...

Data from: Social evolution of toxic metal bioremediation in Pseudomonas aeruginosa.

Siobhán O'Brien, David J. Hodgson & Angus Buckling
Bacteria are often iron-limited, and hence produce extracellular iron-scavenging siderophores. A crucial feature of siderophore production is that it can be an altruistic behaviour (individually costly but benefitting neighbouring cells), thus siderophore producers can be invaded by non-producing social ‘cheats’. Recent studies have shown that siderophores can also bind other heavy metals (such as Cu and Zn), but in this case siderophore chelation actually reduces metal uptake by bacteria. These complexes reduce heavy metal toxicity,...

Data from: Salient eyes deter conspecific nest intruders in wild jackdaws (Corvus monedula)

Gabrielle L. Davidson, Nicola S. Clayton & Alex Thornton
Animals often respond fearfully when encountering eyes or eye-like shapes. Although gaze aversion has been documented in mammals when avoiding group-member conflict, the importance of eye coloration during interactions between conspecifics has yet to be examined in non-primate species. Jackdaws (Corvus monedula) have near-white irides, which are conspicuous against their dark feathers and visible when seen from outside the cavities where they nest. Because jackdaws compete for nest sites, their conspicuous eyes may act as...

Data from: Sex-specific effects of natural and sexual selection on the evolution of life span and ageing in Drosophila simulans

Catharine Ruth Archer, Eoin Duffy, David J. Hosken, Mikael Mokkonen, Kensuke Okada, Keiko Oku, Manmohan D. Sharma & John Hunt
1. Variation in the strength of age-dependent natural selection shapes differences in ageing rates across species and populations. Likewise, sexual selection can promote divergent patterns of senescence across the sexes. However, the effects of these processes on the evolution of ageing have largely been considered independently, and interactions between them are poorly understood. 2. We use experimental evolution to investigate how natural and sexual selection affect life span and ageing in Drosophila simulans. 3. Replicate...

Data from: Sexual selection on cuticular hydrocarbons of male sagebrush crickets in the wild

Sandra Steiger, Geoffrey D. Ower, Johannes Stökl, Christopher Mitchell, John Hunt, Scott K. Sakaluk & J. Stokl
Cuticular hydrocarbons (CHCs) play an essential role in mate recognition in insects but the form and intensity of sexual selection on CHCs has only been evaluated in a handful of studies, and never in a natural population. We quantified sexual selection operating on CHCs in a wild population of sagebrush crickets, a species in which nuptial feeding by females imposes an unambiguous phenotypic marker on males. Multivariate selection analysis revealed a saddle-shaped fitness surface, suggesting...

Data from: A rapid and cost-effective quantitative microsatellite genotyping protocol to estimate intraspecific competition in protist microcosm experiments

Ewan J. A. Minter, Chris D. Lowe, Michael A. Brockhurst & Phillip C. Watts
High levels of intra-specific variation are commonly observed in natural microbial populations, yet the consequences of this variation for ecological and evolutionary processes remains poorly understood. Protists are excellent experimental models for investigating fundamental and applied questions in ecology and evolution, but studying intra-specific variation remains a challenge due to a lack of molecular resources to aid in quantifying and distinguishing strains during experiments. Here we present a molecular method, quantitative microsatellite genotyping, to accurately...

Data from: City life makes females fussy: sex differences in habitat use of temperate bats in urban areas

Paul R. Lintott, Nils Bunnefeld, Elisa Fuentes-Montemayor, Jeroen Minderman, Rebekah J. Mayhew, Lena Olley & Kirsty J. Park
Urbanization is a major driver of the global loss of biodiversity; to mitigate its adverse effects, it is essential to understand what drives species' patterns of habitat use within the urban matrix. While many animal species are known to exhibit sex differences in habitat use, adaptability to the urban landscape is commonly examined at the species level, without consideration of intraspecific differences. The high energetic demands of pregnancy and lactation in female mammals can lead...

Data from: Oxidative status and social dominance in a wild cooperative breeder

Dominic L. Cram, Jonathan D. Blount & Andrew J. Young
1. Oxidative stress has been proposed as a key mediator of life-history trade-offs, yet the social factors that affect patterns of oxidative states amongst individuals in animal societies remain virtually unexplored. 2. This is important, as rank-related differences in reproductive effort in many social species have the potential to generate, or indeed arise from, differences in oxidative state across dominance classes. 3. Here, we examine rank-related variation in oxidative states before and after a lengthy...

Data from: Coevolutionary dynamics of polyandry and sex-linked meiotic drive

Luke Holman, Thomas A. R. Price, Nina Wedell & Hanna Kokko
Segregation distorters located on sex chromosomes are predicted to sweep to fixation and cause extinction via a shortage of one sex, but in nature they are often found at low, stable frequencies. One potential resolution to this long-standing puzzle involves female multiple mating (polyandry). Because many meiotic drivers severely reduce the sperm competitive ability of their male carriers, females are predicted to evolve more frequent polyandry and thereby promote sperm competition when a meiotic driver...

Data from: Evolutionary rates for multivariate traits: the role of selection and genetic variation

William Pitchers, Jason Wolf, Tom Tregenza, John Hunt & Ian Dworkin
A fundamental question in evolutionary biology is the relative importance of selection and genetic architecture in determining evolutionary rates. Adaptive evolution can be described by the multivariate breeders' equation, which predicts evolutionary change for a suite of phenotypic traits as a product of directional selection acting on them (β) and the genetic variance–covariance matrix for those traits (G). Despite being empirically challenging to estimate, there are enough published estimates of G and β to allow...

Data from: Maternal effects and warning signal honesty in eggs and offspring of an aposematic ladybird beetle

Anne E. Winters, Martin Stevens, Chris Mitchell, Simon P. Blomberg & Jonathan D. Blount
1. The eggs of oviparous species are often subject to intense predation pressure. One parental strategy to deter predators is to produce eggs that are laced with noxious chemicals and are conspicuously coloured (i.e. aposematism). 2. Ladybird eggs are conspicuously coloured and contain alkaloids; these traits are believed to function in concert as visual signal and chemical defence, respectively, to deter predators. However, it remains unclear whether such aposematic signals reveal the strength (rather than...

Data from: Developmental stress predicts social network position

Neeltje J. Boogert, Damien R. Farine & Karen A. Spencer
The quantity and quality of social relationships, as captured by social network analysis, can have major fitness consequences. Various studies have shown that individual differences in social behaviour can be due to variation in exposure to developmental stress. However, whether these developmental differences translate to consistent differences in social network position is not known. We experimentally increased levels of the avian stress hormone corticosterone (CORT) in nestling zebra finches in a fully balanced design. Upon...

Data from: Flies on the move: an inherited virus mirrors Drosophila melanogaster’s elusive ecology and demography

Lena Wilfert & Francis M. Jiggins
Vertically transmitted parasites rely on their host's reproduction for their transmission, leading to the evolutionary histories of both parties being intimately entwined. Parasites can thus serve as a population genetic magnifying glass for their host's demographic history. Here, we study the fruitfly Drosophila melanogaster's vertically transmitted sigma virus DMelSV. The virus has a high mutation rate and low effective population size, allowing us to reconstruct at a fine scale how the combined forces of the...

Data from: Effects of epistasis on infectivity range during host-parasite coevolution

Ben Ashby, Sunetra Gupta & Angus Buckling
Understanding how parasites adapt to changes in host resistance is crucial to evolutionary epidemiology. Experimental studies have demonstrated that parasites are more capable of adapting to gradual, rather than sudden changes in host phenotype, as the latter may require multiple mutations that are unlikely to arise simultaneously. A key, but as yet unexplored factor is precisely how interactions between mutations (epistasis) affect parasite evolution. Here, we investigate this phenomenon in the context of infectivity range,...

Data from: Sexual conflict over mating in Gnatocerus cornutus? Females prefer lovers not fighters

Kensuke Okada, Masako Katsuki, Manmohan D. Sharma, Clarissa M. House & David J. Hosken
Female mate choice and male–male competition are the typical mechanisms of sexual selection. However, these two mechanisms do not always favour the same males. Furthermore, it has recently become clear that female choice can sometimes benefit males that reduce female fitness. So whether male–male competition and female choice favour the same or different males, and whether or not females benefit from mate choice, remain open questions. In the horned beetle, Gnatocerus cornutus, males have enlarged...

Data from: Sexual conflict and interacting phenotypes: a quantitative genetic analysis of fecundity and copula duration in Drosophila melanogaster

Dominic Alexander Edward, Jocelyn Poissant, Alastair J. Wilson & Tracey Chapman
Many reproductive traits that have evolved under sexual conflict may be influenced by both sexes. Investigation of the genetic architecture of such traits can yield important insight into their evolution, but this entails that the heritable component of variation is estimated for males and females – as an interacting phenotype. We address the lack of research in this area through an investigation of egg production and copula duration in the fruit fly, Drosophila melanogaster. Despite...

Data from: Comparative genomics of the mimicry switch in Papilio dardanus

Martijn J. T. N. Timmermans, Simon W. Baxter, Rebecca Clark, David G. Heckel, Heiko Vogel, Steve Collins, Alexie Papanicolaou, Iva Fukova, Mathieu Joron, Martin J. Thompson, Chris D. Jiggins, Richard H. Ffrench-Constant & Alfried P. Vogler
The African Mocker Swallowtail, Papilio dardanus, is a textbook example in evolutionary genetics. Classical breeding experiments have shown that wing pattern variation in this polymorphic Batesian mimic is determined by the polyallelic H locus that controls a set of distinct mimetic phenotypes. Using bacterial artificial chromosome (BAC) sequencing, recombination analyses and comparative genomics, we show that H co-segregates with an interval of less than 500 kb that is collinear with two other Lepidoptera genomes and...

Registration Year

  • 2014
    33

Resource Types

  • Dataset
    33

Affiliations

  • University of Exeter
    33
  • University of Cambridge
    5
  • University of Liverpool
    4
  • Illinois State University
    3
  • University of Oxford
    3
  • Australian National University
    2
  • Okayama University
    2
  • University of Ulm
    2
  • Wageningen University & Research
    2
  • Michigan State University
    2