45 Works

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: 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: 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: 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: 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: Nutritional geometry of paternal effects on embryo mortality

Michal Polak, Leigh W. SImmons, Joshua B. Benoit, Kari Ruohonen, Stephen J. Simpson & Samantha M. Solon-Biet
Well-established causal links exist between maternal nutritional deficits and embryo health and viability. By contrast, environmental effects operating through the father that could influence embryo mortality have seldom been examined. Yet, ejaculates can require non-trivial resource allocation, and seminal plasma components are increasingly recognized to exert wide-ranging effects on females and offspring, so paternal dietary effects on the embryo should be expected. We test for effects of varying levels of protein (P), carbohydrate (C) and...

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,...

Data from: Extreme polyandry aids the establishment of invasive populations of a social insect

Guiling Ding, Huanli Xu, Benjamin P. Oldroyd & Rosalyn S. Gloag
Although monandry is believed to have facilitated the evolution of eusociality, many highly eusocial insects have since evolved extreme polyandry. The transition to extreme polyandry was likely driven by the benefits of within-colony genetic variance to task specialization and/or disease resistance, but the extent to which it confers secondary benefits, once evolved, is unclear. Here we investigate the consequences of extreme polyandry on the invasive potential of the Asian honey bee, Apis cerana. In honey...

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: 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: 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: Evaluating the performance of anchored hybrid enrichment at the tips of the tree of life: a phylogenetic analysis of Australian Eugongylus group scincid lizards

Matthew C. Brandley, Jason G. Bragg, Sonal Singhal, David G. Chapple, Charlotte K. Jennings, Alan R. Lemmon, Emily M. Lemmon, Michael B. Thompson & Craig Moritz
Background: High-throughput sequencing using targeted enrichment and transcriptomic methods enables rapid construction of phylogenomic data sets incorporating hundreds to thousands of loci. These advances have enabled access to an unprecedented amount of nucleotide sequence data, but they also pose new questions. Given that the loci targeted for enrichment are often highly conserved, how informative are they at different taxonomic scales, especially at the intraspecific / phylogeographic scale? We investigate this question using Australian scincid lizards...

Data from: Hepatic Aryl hydrocarbon Receptor Nuclear Translocator (ARNT) regulates metabolism in mice

Christopher H. Scott, Kuan-Minn Cha, Jason Ngai, Changtao Jiang, Kim Cheng, Rebecca A. Stokes, Kenneth W.K. Ho, Jacob George, Frank J. Gonzalez, Jenny E. Gunton & Kenneth W. K. Ho
Background & Aims: Aryl hydrocarbon Receptor Nuclear Translocator (ARNT) and its partners hypoxia-inducible factors (HIF)-1α and HIF-2α are candidate factors for the well-known link between the liver, metabolic dysfunction and elevation in circulating lipids and glucose. Methods: Hepatocyte-specific ARNT-null (LARNT), HIF-1α-null (LHIF1α) and HIF-2α-null (LHIF2α) mice were created. Results: LARNT mice had increased fasting glucose, impaired glucose tolerance, increased glucose production, raised post-prandial serum triglycerides (TG) and markedly lower hepatic ATP versus littermate controls. There...

Data from: The causes and ecological correlates of head scale asymmetry and fragmentation in a tropical snake

Gregory P. Brown, Thomas Madsen, Sylvain Dubey & Rick Shine
The challenge of identifying the proximate causes and ecological consequences of phenotypic variation can be facilitated by studying traits that are usually but not always bilaterally symmetrical; deviations from symmetry likely reflect disrupted embryogenesis. Based on a 19-year mark-recapture study of >1300 slatey-grey snakes (Stegonotus cucullatus) in tropical Australia, and incubation of >700 eggs, we document developmental and ecological correlates of two morphological traits: asymmetry and fragmentation of head scales. Asymmetry was directional (more scales...

Data from: Collective decision making in guppies: a cross-population comparison study in the wild

Romain J. G. Clément, Julián Vicente-Page, Richard P. Mann, Ashley J. W. Ward, Ralf H. J. M. Kurvers, Indar W. Ramnarine, Gonzalo G. De Polavieja & Jens Krause
Collective cognition has received much attention in recent years but most of the empirical work has focused on comparing individuals and groups within single populations, thereby not addressing evolutionary origins of collective cognition. Here we investigated collective cognition in multiple populations that are subject to different levels of predation. Guppies (Poecilia reticulata) were given a simultaneous choice between an edible and a non-edible stimulus. We found evidence for an improvement in decision accuracy when in...

Data from: Macronutrient selection of free-ranging urban Australian white ibis (Threskiornis moluccus)

Sean C. P. Coogan, Gabriel E. Machovsky-Capuska, Alistair M. Senior, John M. Martin, Richard E. Major & David Raubenheimer
Anthropogenic habitats often provide urban wildlife the opportunity to feed on a range of nutritionally diverse foods, which may ultimately lead to human-wildlife conflict. The Australian white ibis (Threskiornis moluccus) provides an exemplar model for examining the nutritional priorities and constraints of a native vertebrate that is successfully transitioning to an urban specialist. Here, we used field-based feeding trials to investigate the macronutrient preferences of free-ranging ibis in Sydney, Australia. Feeding trials (n = 61)...

Data from: The costs of parasite infection: effects of removing lungworms on performance, growth and survival of free-ranging cane toads

Patrick B. Finnerty, Richard Shine & Gregory P. Brown
1.Most research on the effects of parasites on their hosts has focused on the parasites of mammals or birds (especially, domesticated taxa) rather than systems in which the hosts are ectothermic wildlife species. 2.We used experimental methods (antihelminthic drugs) to quantify the effects of lungworms (Rhabdias pseudosphaerocephala) on their anuran hosts, the invasive cane toad (Rhinella marina). 3.In captivity, eradicating lungworms enhanced toad activity (measures of boldness and level of spontaneous activity), performance (locomotor speed,...

Data from: Argentine ants (Linepithema humile) use adaptable transportation networks to track changes in resource quality

Tanya Latty, Michael J. Holmes, James C. Makinson & Madeleine Beekman
Transportation networks play a crucial role in human and animal societies. For a transportation network to be efficient, it must have adequate capacity to meet traffic demand. Network design becomes increasingly difficult in situations where traffic demand can change unexpectedly. In humans, network design is often constrained by path dependency because it is difficult to move a road once it is built. A similar issue theoretically faces pheromone-trail-laying social insects; once a trail has been...

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: 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: 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...

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