45 Works

Data from: Age-related sex differences in body condition and telomere dynamics of red-sided garter snakes

Nicky Rollings, Emily J. Uhrig, Randolf W. Krohmer, Heather L. Waye, Robert T. Mason, Mats Olsson, Camilla M. Whittington, Christopher R. Friesen & Randolph W. Krohmer
Life-history strategies vary dramatically between the sexes, which may drive divergence in sex-specific senescence and mortality rates. Telomeres are tandem nucleotide repeats that protect the ends of chromosomes from erosion during cell division. Telomeres have been implicated in senescence and mortality because they tend to shorten with stress, growth and age. We investigated age-specific telomere length in female and male red-sided garter snakes, Thamnophis sirtalis parietalis. We hypothesized that age-specific telomere length would differ between...

Data from: Local interactions and global properties of wild, free-ranging stickleback shoals

Ashley J. W. Ward, Timothy M. Schaerf, James E. Herbert-Read, Lesley Morrell, David J.T. Sumpter, Mike M. Webster & David J. T. Sumpter
Collective motion describes the global properties of moving groups of animals and the self-organized, coordinated patterns of individual behaviour that produce them. We examined the group-level patterns and local interactions between individuals in wild, free-ranging shoals of three-spine sticklebacks, Gasterosteus aculeatus. Our data reveal that the highest frequencies of near-neighbour encounters occur at between one and two body lengths from a focal fish, with the peak frequency alongside a focal individual. Fish also show the...

Data from: Gut microbiota modifies olfactory-guided microbial preferences and foraging decisions in Drosophila

Adam Chun-Nin Wong, Qiao-Ping Wang, Juliano Morimoto, Alistair M. Senior, Mathieu Lihoreau, G. Gregory Neely, Stephen J. Simpson & Fleur Ponton
The gut microbiota affects a wide spectrum of host physiological traits, including development [ 1–5 ], germline [ 6 ], immunity [ 7–9 ], nutrition [ 4, 10, 11 ], and longevity [ 12, 13 ]. Association with microbes also influences fitness-related behaviors such as mating [ 14 ] and social interactions [ 15, 16 ]. Although the gut microbiota is evidently important for host wellbeing, how hosts become associated with particular assemblages of microbes...

Data from: Host provisioning behavior favors mimetic begging calls in a brood-parasitic cowbird

Cynthia A. Ursino, Ros Gloag, Juan C. Reboreda & Maria C. De Mársico
The vocalizations of some young brood-parasitic birds closely resemble those of their host’s young. Such similarities might arise because hosts bestow the greatest parental care in response to their own species’ call type. We used a playback experiment to assess the effectiveness of the nestling call structures of two brood parasites, the specialist screaming cowbird (Molothrus rufoaxillaris) and the generalist shiny cowbird (M. bonariensis), in stimulating parental provisioning in a shared host, the baywing (Agelaioides...

Data from: Sex-specific shifts in morphology and colour pattern polymorphism during range expansion of an invasive lizard

Kimberly A. Miller, Andressa Duran, Jane Melville, Michael B. Thompson & David G. Chapple
Aim: Human-assisted range expansion of animals to new environments can lead to phenotypic shifts over ecological timescales.We investigated whether phenotypic changes are sex-specific using an invasive lizard (Lampropholis delicata). Location: Pacific region (Hawaiian Islands, Lord Howe Island, New Zealand, eastern Australia) Methods: Using our knowledge of theintroduction history of L. delicata, we examined museum specimens of individuals collected across the native and introduced range to determine whether shifts in morphologyor colour pattern polymorphism had occurred...

Data from: Body size affects the strength of social interactions and spatial organization of a schooling fish (Pseudomugil signifer)

Maksym Romenskyy, James E. Herbert-Read, Ashley J. W. Ward, David J.T. Sumpter & David J. T. Sumpter
While a rich variety of self-propelled particle models propose to explain the collective motion of fish and other animals, rigorous statistical comparison between models and data remains a challenge. Plausible models should be flexible enough to capture changes in the collective behaviour of animal groups at their different developmental stages and group sizes. Here, we analyse the statistical properties of schooling fish (Pseudomugil signifer) through a combination of experiments and simulations. We make novel use...

Data from: Thermal physiology: a new dimension of the pace-of-life syndrome

Celine T. Goulet, Mike B. Thompson, Marcus Michelangeli, Bob B.M. Wong, David G. Chapple & Bob B. M. Wong
1) Current syndrome research focuses primarily on behavior with few incorporating components of physiology. One such syndrome is the Pace-of-Life Syndrome (POLS) which describes covariation between behaviour, metabolism immunity, hormonal response, and life history traits. Despite the strong effect temperature has on behavior, thermal physiology has yet to be considered within this syndrome framework. 2) We proposed the POLS to be extended to include a new dimension, the cold-hot axis. Under this premise, it is...

Data from: Plio-Pleistocene phylogeography of the Southeast Asian Blue Panchax killifish, Aplocheilus panchax

Samantha V. Beck, Gary R. Carvalho, Axel Barlow, Lukas Rüber, Heok Hui Tan, Estu Nugroho, Daisy Wowor, Siti Azizah Mohd Nor, Fabian Herder, Zainal A. Muchlisin & Mark De Bruyn
The complex climatic and geological history of Southeast Asia has shaped this region’s high biodiversity. In particular, sea level fluctuations associated with repeated glacial cycles during the Pleistocene both facilitated, and limited, connectivity between populations. In this study, we used data from two mitochondrial and three anonymous nuclear markers to determine whether a fresh/brackish water killifish, Aplocheilus panchax, Hamilton, 1822, could be used to further understand how climatic oscillations and associated sea level fluctuations have...

Data from: Pedigree analysis reveals a generational decline in reproductive success of captive Tasmanian devil (Sarcophilus harrisii): implications for captive management of threatened species

Katherine A. Farquharson, Carolyn J. Hogg & Catherine E. Grueber
Captive breeding programs are an increasingly popular tool to augment the conservation of threatened wild populations. Many programs keep detailed pedigrees, which are used to prescribe breeding targets to meet demographic and genetic goals. Annual breeding targets are based on previous productivity, but do not account for changes in reproductive success that may occur over generations in captivity and which may impair the ability of a program to meet its goals. We utilise a large...

Data from: Obesity-induced decreases in muscle performance are not reversed by weight loss

F. Seebacher, J. Tallis, K. McShea & R. S. James
BACKGROUND/OBJECTIVES: Obesity can affect muscle phenotypes, and may thereby constrain movement and energy expenditure. Weight loss is a common and intuitive intervention for obesity, but it is not known whether the effects of obesity on muscle function are reversible by weight loss. Here we tested whether obesity-induced changes in muscle metabolic and contractile phenotypes are reversible by weight loss. SUBJECTS/METHODS: We used zebrafish (Danio rerio) in a factorial design to compare energy metabolism, locomotor capacity,...

Data from: Atoll-scale patterns in coral reef community structure: Human signatures on Ulithi Atoll, Micronesia

Nicole L. Crane, Peter Nelson, Avigdor Abelson, Kristin Precoda, , Giacomo Bernardi & Michelle Paddack
The dynamic relationship between reefs and the people who utilize them at a subsistence level is poorly understood. This paper characterizes atoll-scale patterns in shallow coral reef habitat and fish community structure, and correlates these with environmental characteristics and anthropogenic factors, critical to conservation efforts for the reefs and the people who depend on them. Hierarchical clustering analyses by site for benthic composition and fish community resulted in the same 3 major clusters: cluster 1–oceanic...

Data from: Selective sweeps of mitochondrial DNA can drive the evolution of uniparental inheritance

Joshua R. Christie & Madeleine Beekman
While the uniparental (or maternal) inheritance of mitochondrial DNA (mtDNA) is widespread, the reasons for its evolution remain unclear. Two main hypotheses have been proposed: selection against individuals containing different mtDNAs (heteroplasmy) and selection against “selfish” mtDNA mutations. Recently, uniparental inheritance was shown to promote adaptive evolution in mtDNA, potentially providing a third hypothesis for its evolution. Here we explore this hypothesis theoretically and ask if the accumulation of beneficial mutations provides a sufficient fitness...

Data from: Macronutrient signature of dietary generalism in an ecologically diverse primate in the wild

Zhen-Wei Cui, Zhen-Long Wang, Qi Shao, David Raubenheimer & Ji-Qi Lu
A question of considerable importance is why some animals are able to succeed on a wide range of diets while others are more tightly constrained. Theory predicts that generalists should show a flexible response for macronutrient acquisition in the face of ecologically-driven constraint on the nutritional balance of available foods, which in the modelling framework of nutritional geometry has been quantitatively characterized as an “equal distance” regulatory model. This prediction, which has empirical support from...

Data from: Subfamily-dependent alternative reproductive strategies in worker honey bees

Boris Yagound, Michael Duncan, Nadine C. Chapman & Benjamin P. Oldroyd
Functional worker sterility is the defining feature of insect societies. Yet, workers are sometimes found reproducing in their own or foreign colonies. The proximate mechanisms underlying these alternative reproductive phenotypes are key to understanding how reproductive altruism and selfishness are balanced in eusocial insects. In this study we show that in honey bee (Apis mellifera) colonies the social environment of a worker, i.e. the presence and relatedness of the queens in a worker’s natal colony...

Data from: Does habitat specialization shape the evolutionary potential of wild bird populations?

Ivain Martinossi-Allibert, Joanne Clavel, Simon Ducatez, I. Le Viol & Celine Teplitsky
Because specialist species evolved in more temporally and spatially homogeneous environments than generalist species, they are supposed to experience less fluctuating selection. For this reason, we expect specialists to show lower overall genetic variation as compared to generalists. We also expect populations from specialist species to be smaller and more fragmented, with lower neutral genetic diversity. We tested these hypotheses by investigating patterns of genetic diversity along a habitat specialization gradient in wild birds, based...

Data from: Direct and trans-generational effects of male and female gut microbiota in Drosophila melanogaster

Juliano Morimoto, Stephen J. Simpson & Fleur Ponton
There is increasing evidence of the far-reaching effects of gut bacteria on physiological and behavioural traits, yet the fitness-related consequences of changes in the gut bacteria composition of sexually interacting individuals remain unknown. To address this question, we manipulated the gut microbiota of fruit flies, Drosophila melanogaster, by monoinfecting flies with either Acetobacter pomorum (AP) or Lactobacillus plantarum (LP). Re-inoculated individuals were paired in all treatment combinations. LP-infected males had longer mating duration and induced...

Data from: Resource availability and sexual size dimorphism: differential effects of prey abundance on the growth rates of tropical snakes

Gregory P. Brown, Thomas R.L. Madsen, Richard Shine, Thomas R. L. Madsen & Rick Shine
1. Broad phylogenetic patterns in sexual size dimorphism (SSD) are shaped by sex differences in net selection pressures (e.g., sexual selection, fecundity selection, survival selection), but environmental and ecological factors can also affect the expression of SSD. 2. Discussions of proximate ecological influences on SSD have focused on niche divergence; for example, increase in a prey type used by only one sex can elevate growth rates of that sex but not the other. Food limitation...

Data from: The loneliness of the long-distance toad: invasion history and social attraction in cane toads (Rhinella marina)

Jodie Gruber, Martin J. Whiting, Gregory Brown & Richard Shine
Individuals at the leading edge of a biological invasion constantly encounter novel environments. These pioneers may benefit from increased social attraction, because low population densities reduce competition and risks of pathogen transfer, and increase benefits of information transfer. In standardised trials, cane toads (Rhinella marina) from invasion-front populations approached conspecifics more often, and spent more time close to them, than did conspecifics from high-density, long-colonised populations.

Data from: Adult dietary protein has age- and context-dependent effects on male post-copulatory performance

Erin L. Macartney, Angela J. Crean & R. Bonduriansky
The highly-conserved effect of dietary protein restriction on life-span and ageing is observed in both sexes and across a vast range of taxa. This extension of life-span is frequently accompanied by a reduction in female fecundity and it has been hypothesised that individuals may reallocate resources away from reproduction and into somatic maintenance. However, effects of dietary protein restriction on male reproduction are less consistent, suggesting that these effects may depend on other environmental parameters....

Data from: Top predators constrain mesopredator distributions

Thomas M. Newsome, Aaron C. Greenville, Duško Ćirović, Christopher R. Dickman, Chris N. Johnson, Miha Krofel, Mike Letnic, William J. Ripple, Euan G. Ritchie, Stoyan Stoyanov & Aaron J. Wirsing
Top predators can suppress mesopredators by killing them, competing for resources and instilling fear, but it is unclear how suppression of mesopredators varies with the distribution and abundance of top predators at large spatial scales and among different ecological contexts. We suggest that suppression of mesopredators will be strongest where top predators occur at high densities over large areas. These conditions are more likely to occur in the core than on the margins of top...

Data from: A species-specific multigene family mediates differential sperm displacement in Drosophila melanogaster

Vivek Jayawal, Jamie Jimenez, Robert Magie, Kien Nguyen, Bryan Clifton, Shudan Yeh, Jose M. Ranz & Vivek Jayaswal
Sperm competition is a post-copulatory sexual selection mechanism in species in which females mate with multiple males. Despite its evolutionary relevance in shaping male traits, the genetic mechanisms underlying sperm competition are poorly understood. A recently originated multigene family specific to D. melanogaster, Sdic, is important for the outcome of sperm competition in doubly-mated females, although the mechanistic nature of this phenotype remained unresolved. Here we compared doubly-mated females, second mated to either Sdic knockout...

Data from: Assessing the trophic ecology of top predators across a recolonisation frontier using DNA metabarcoding of diets

Natasha Hardy, Tina Berry, Brendan P. Kelaher, Simon D. Goldsworthy, Michael Bunce, Melinda A. Coleman, Bronwyn M. Gillanders, Sean D. Connell, Michelle Blewitt, Will Figueira, BM Gillanders, SD Connell, BP Kelaher & SD Goldsworthy
Top predator populations, once intensively hunted, are rebounding in size and geographic distribution. The cessation of sealing along coastal Australia and subsequent recovery of Australian Arctocephalus pusillus doriferus and long-nosed A. forsteri fur seals represents a unique opportunity to investigate trophic linkages at a frontier of predator recolonisation. We characterised the diets of both species across 2 locations of recolonisation, one site an established breeding colony, and the other, a new but permanent haul-out site....

Data from: The complexity of mating decisions in stalk-eyed flies

Nadine C. Chapman, Penthai Siriwat, James Howie, Aaron Towlson, Lawrence Bellamy, Kevin Fowler & Andrew Pomiankowski
All too often, studies of sexual selection focus exclusively on the responses in one sex, on single traits, typically those that are exaggerated and strongly sexually dimorphic. They ignore a range of less obvious traits and behavior, in both sexes, involved in the interactions leading to mate choice. To remedy this imbalance, we analyze a textbook example of sexual selection in the stalk-eyed fly (Diasemopsis meigenii). We studied several traits in a novel, insightful, and...

Data from: Reciprocal translocation of small numbers of inbred individuals rescues immunogenetic diversity

Catherine E. Grueber, Jolene T. Sutton, Sol Heber, James V. Briskie, Ian G. Jamieson & Bruce C. Robertson
Genetic rescue can reduce inbreeding depression and increase fitness of small populations, even when the donor populations are highly inbred. In a recent experiment involving two inbred island populations of the South Island robin, Petroica australis, reciprocal translocations improved microsatellite diversity and individual fitness. While microsatellite loci may reflect patterns of genome-wide diversity, they generally do not indicate the specific genetic regions responsible for increased fitness. We tested the effectiveness of this reciprocal translocation for...

Data from: Population demography and heterozygosity-fitness correlations in natural guppy populations: an examination using sexually selected fitness traits

Catherine E. Grueber, John L. Fitzpatrick, Alessandro Devigili, Clelia Gasparini, Indar W. Ramnarine & Jonathan P. Evans
Heterozygosity-fitness correlations (HFCs) have been examined in a wide diversity of contexts, and the results are often used to infer the role of inbreeding in natural populations. Although population demography, reflected in population-level genetic parameters such as allelic diversity or identity disequilibrium, is expected to play a role in the emergence and detectability of HFCs, direct comparisons of variation in HFCs across many populations of the same species, with different genetic histories, are rare. Here,...

Registration Year

  • 2017
    45

Resource Types

  • Dataset
    45

Affiliations

  • University of Sydney
    45
  • Macquarie University
    4
  • Monash University
    3
  • Deakin University
    3
  • Uppsala University
    3
  • Southern Cross University
    2
  • University of the West Indies
    2
  • University of Washington
    2
  • University of Newcastle Australia
    2
  • Oregon State University
    2