23 Works

Data from: Power and temptation cause shifts between exploitation and cooperation in a cleaner wrasse mutualism

Simon Gingins, Redouan Bshary, Johanna Werminghausen, Rufus A. Johnstone & Alexandra S. Grutter
In many instances of cooperation, only one individual has both the potential and the incentive to ‘cheat’ and exploit its partner. Under these asymmetric conditions, a simple model predicts that variation in the temptation to cheat and in the potential victim's capacity for partner control leads to shifts between exploitation and cooperation. Here, we show that the threat of early termination of an interaction was sufficient to induce cleaner wrasse Labroides dimidiatus to feed selectively...

Data from: Gene flow in the green mirid, Creontiades dilutus (Hemiptera: Miridae), across arid and agricultural environments with different host plant species

J. P. Hereward, G. H. Walter, P. J. DeBarro, A. J. Lowe & C. Riginos
Creontiades dilutus (Stål), the green mirid, is a polyphagous herbivorous insect endemic to Australia. Although common in the arid interior of Australia and found on several native host plants that are spatially and temporally ephemeral, green mirids also reach pest levels on several crops in eastern Australia. These host-associated dynamics, distributed across a large geographic area, raise questions as to whether (1) seasonal fluctuations in population size result in genetic bottlenecks and drift, (2) arid...

Data from: Functional traits explain variation in plant life history strategies

Peter B. Adler, Roberto Salguero-Gómez, Aldo Compagnoni, Joanna S. Hsu, Jayanti Ray-Mukherjee, Cyril Mbeau-Ache & Miguel Franco
Ecologists seek general explanations for the dramatic variation in species abundances in space and time. An increasingly popular solution is to predict species distributions, dynamics and responses to environmental change based on easily measured anatomical and morphological traits. Trait-based approaches assume that simple functional traits influence fitness and life history evolution, but rigorous tests of this assumption are lacking because they require quantitative information about the full life-cycles of many species representing different life histories....

Data from: The role of gravity in the evolution of mammalian blood pressure

Craig R. White & Roger S. Seymour
Understanding of the factors involved in determining the level of central arterial blood pressure in mammals has been clouded by inappropriate allometric analyses that fail to account for phylogenetic relationships among species, and require pressure to approach 0 as body size decreases. The present study analyses systolic, mean arterial, and diastolic blood pressure in 47 species of mammal with phylogenetically informed techniques applied to two-parameter equations. It also sets nonlinear, three-parameter equations to the data...

Data from: Comparing G: multivariate analysis of genetic variation in multiple populations

J. D. Aguirre, Emma Hine, Katrina McGuigan & Mark W. Blows
The additive genetic variance–covariance matrix (G) summarizes the multivariate genetic relationships among a set of traits. The geometry of G describes the distribution of multivariate genetic variance, and generates genetic constraints that bias the direction of evolution. Determining if and how the multivariate genetic variance evolves has been limited by a number of analytical challenges in comparing G-matrices. Current methods for the comparison of G typically share several drawbacks: metrics that lack a direct relationship...

Data from: Estimating uncertainty in multivariate responses to selection

John R. Stinchcombe, Anna K. Simonsen, Mark W. Blows & Mark. W. Blows
Predicting the responses to natural selection is one of the key goals of evolutionary biology. Two of the challenges in fulfilling this goal have been the realization that many estimates of natural selection might be highly biased by environmentally induced covariances between traits and fitness, and that many estimated responses to selection do not incorporate or report uncertainty in the estimates. Here we describe the application of a framework that blends the merits of the...

Data from: The osteology and systematics of the enigmatic Australian Oligo-Miocene metatherian Yalkaparidon (Yalkaparidontidae; Yalkaparidontia; Australidelphia; Marsupialia)

Robin M. D. Beck, Kenny J. Travouillon, Ken P. Aplin, Henk Godthelp & Michael Archer
We provide the first detailed description of the osteology of the enigmatic Oligo-Miocene Australian metatherian Yalkaparidon. This taxon exhibits a number of unusual craniodental apomorphies but appears to be plesiomorphic within Metatheria in retaining four molars, rather than three as previously reported. We demonstrate that the only known skull of Yalkaparidon almost certainly represents a single individual. We also tentatively refer a number of isolated tarsals to the genus. Maximum parsimony analyses of a 258...

Data from: Species limits, quarantine risk and the intrigue of a polyphagous invasive pest with highly restricted host relationships in its area of invasion

Michelle A. Rafter, James P. Hereward & Gimme H. Walter
Scirtothrips aurantii is a generalist horticultural pest in its African range and recently established quite widely in Australia on the invasive succulent weed Bryophyllum. Paradoxically, this thrips is not polyphagous in its incursive range. The issue is principally one of quarantine. Will the thrips in Australia shift, perhaps adaptively, to citrus, and should the primary focus be on containment around Australian citrus, or does the real quarantine risk exist offshore with thrips present on citrus...

Data from: Hybridization and adaptation to introduced balloon vines in an Australian soapberry bug

Jose A. Andrés, Prasobh R. Thampy, Michael T. Mathieson, Jenella Loye, Myron P. Zalucki, Hugh Dingle & Scott P. Carroll
Contemporary adaptation of plant feeding insects to introduced hosts provides clear cases of ecologically based population divergence. In most cases the mechanisms permitting rapid differentiation are not well known. Here we study morphological and genetic variation associated with recent shifts by the Australian soapberry bug Leptocoris tagalicus onto two naturalized Neotropical balloon vines, Cardiospermum halicacabum and C. grandiflorum that differ in time since introduction. Our results show that these vines have much larger fruits than...

Data from: Sex-specific patterns of morphological diversification: evolution of reaction norms and static allometries in neriid flies

Elizabeth J. Cassidy, Eleanor Bath, Stephen F. Chenoweth & Russell Bonduriansky
The consequences of sex-specific selection for patterns of diversification remain poorly known. Because male secondary sexual traits are typically costly to express, and both costs and benefits are likely to depend on ambient environment and individual condition, such traits may be expected to diversify via changes in reaction norms as well as the scaling of trait size with body size (static allometry). We investigated morphological diversification within two species of Australian neriid flies (Telostylinus angusticollis,...

Data from: New SNPs for population genetic analysis reveal possible cryptic speciation of eastern Australian sea mullet (Mugil cephalus)

Nils C. Krück, David I. Innes & Jennifer R. Ovenden
Sustainable management of sea mullet (Mugil cephalus) fisheries needs to account for recent observations of regional-scale differentiation. Population genetic analysis is sought to assess the situation of this ecologically and economically important fish species in eastern Australian waters. Here, we report (i) new population genetic markers [single nucleotide polymorphisms (SNPs) and potential microsatellites], (ii) first estimates of spatial genetic differentiation and (iii) prospective power tests for designing more comprehensive studies. Six DNA samples from three...

Data from: Introgression and the fate of domesticated genes in a wild mammal population

Philine G. D. Feulner, Jacob Gratten, James W. Kijas, Peter M. Visscher, Josephine M. Pemberton, Jon Slate & Jon. Slate
When domesticated species are not reproductively isolated from their wild relatives, the opportunity arises for artificially selected variants to be re-introduced into the wild. However, the evolutionary consequences of introgression of domesticated genes back into the wild are poorly understood. By combining high-throughput genotyping with 25 years of long-term ecological field data, we describe the occurrence and consequences of admixture between a primitive sheep breed, the free-living Soay sheep of St Kilda, and more modern...

Data from: Evolutionary constraints and the maintenance of individual specialization throughout succession

Keyne Monro & Dustin J. Marshall
Constraints on life-history traits, with their close links to fitness, are widely invoked as limits to niche expansion at most organizational levels. Theoretically, such constraints can maintain individual specialization by preventing adaptation to all niches available, but empirical evidence of them remains elusive for natural populations. This problem may be compounded by a tendency to seek constraints involving multiple traits, neglecting their added potential to manifest in trait expression across environments (i.e., within reaction norms)....

Data from: Mechanisms of biotic resistance across complex life cycles

Marc Rius, Elaine E. Potter, John J. Stachowicz & J. David Aguirre
1. Biotic resistance is the ability of communities to inhibit the establishment, spread or impact of novel species. However, the interactions that underlie biotic resistance depend heavily on the contexts in which species interact. Consequently, studies of biotic resistance that consider single processes, patches, species or life-history stages may provide an incomplete picture of the capacity for communities to resist invasion. 2. Many organisms have multiphasic life cycles, where individuals can occupy distinct niches at...

Data from: \"Blood transcriptome sequencing of Common Crossbills (Loxia curvirostra) experimentally infected by the avian malaria parasite Plasmodium relictum (lineage SGS1)\" in Genomic Resources Notes accepted 1 June 2013-31 July 2013

Olof Hellgren, Staffan Bensch, Tomas Johansson, Gediminas Valkiunas, Vaidas Palinauskas, David W. Coltman, Corey S. Davis, René M. Malenfant & Stephen S. Moore
In order to understand the epidemiology of this avian malaria infections both geographically and across host species there is a need of more polymorphic markers and knowledge about genes expressed during the infection of the host. However, technical difficulties have hindered the development of such molecular markers. The main difficulty is the fact that the host (birds) has nucleated erythrocytes and there is a 52-fold difference in the genome size between the host and the...

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: Perioperative medication management: expanding the role of the preadmission clinic pharmacist in a single centre, randomised controlled trial of collaborative prescribing

Andrew R. Hale, Ian D. Coombes, Julie Stokes, David McDougall, Karen Whitfield, Elizabeth Maycock & Lisa Nissen
Objectives: Current evidence to support non-medical prescribing is predominantly qualitative, with little evaluation of accuracy, safety and appropriateness. Our aim was to evaluate a new model of service for the Australia healthcare system, of inpatient medication prescribing by a pharmacist in an elective surgery pre admission clinic (PAC) against usual care, using an endorsed performance framework. Design: Single centre, randomised controlled, two arm trial Setting: Elective surgery pre admission clinic in Brisbane based tertiary hospital...

Data from: Echidna venom gland transcriptome provides insights into the evolution of monotreme venom

Emily S. W. Wong, Stewart Nichol, Wesley C. Warren, Katherine Belov & Stewart Nicol
Monotremes (echidna and platypus) are egg-laying mammals. One of their most unique characteristic is that males have venom/crural glands that are seasonally active. Male platypuses produce venom during the breeding season, delivered via spurs, to aid in competition against other males. Echidnas are not able to erect their spurs, but a milky secretion is produced by the gland during the breeding season. The function and molecular composition of echidna venom is as yet unknown. Hence,...

Data from: Randomised controlled trial of an education and support package for stroke patients and their carers

Sally Eames, Tammy Hoffmann, Linda Worrall, Stephen Read & Andrew Wong
Objective: Tailoring stroke information and providing reinforcement opportunities are two strategies proposed to enhance the effectiveness of education. This study aimed to evaluate the effects of an education package which utilised both strategies on the knowledge, health and psychosocial outcomes of stroke patients and carers. Design: Multisite, randomised trial comparing usual care with an education and support package. Setting: Two acute stroke units. Participants: Patients and their carers (N=138) were randomised (control n=67, intervention n=71)...

Data from: Convergence and divergence during the adaptation to similar environments by an Australian groundsel

Federico Roda, Huanle Liu, Melanie Joye Wilkinson, Greg Matthew Walter, Maddie Ellen James, Diana Marcela Bernal, Maria Clara Melo, Andrew John Lowe, Loren H. Rieseberg, Peter Prentis, Daniel Ortiz-Barrientos & Gregory M. Walter
Adaptation to replicate environments is often achieved through similar phenotypic solutions. Whether selection also produces convergent genomic changes in these situations remains largely unknown. The variable groundsel, Senecio lautus, is an excellent system to investigate the genetic underpinnings of convergent evolution, since morphologically similar forms of these plants have adapted to the same environments along the coast of Australia. We compared range-wide patterns of genomic divergence in natural populations of this plant and searched for...

Data from: Genomic evidence for the parallel evolution of coastal forms in the Senecio lautus complex

Federico Roda, Luke Ambrose, Gregory M. Walter, Huanle L. Liu, Andrea Schaul, Andrew Lowe, Pieter B. Pelser, Peter Prentis, Loren H. Rieseberg & Daniel Ortiz-Barrientos
Instances of parallel ecotypic divergence where adaptation to similar conditions repeatedly cause similar phenotypic changes in closely related organisms are useful for studying the role of ecological selection in speciation. Here we used a combination of traditional and next generation genotyping techniques to test for the parallel divergence of plants from the Senecio lautus complex, a phenotypically variable groundsel that has adapted to disparate environments in the South Pacific. Phylogenetic analysis of a broad selection...

Data from: Generalist insects behave in a jasmonate-dependent manner on their host plants, leaving induced areas quickly and staying longer on distant parts

Lynda E. Perkins, Bronwen W. Cribb, Philip B. Brewer, Jim Hanan, Murray Grant, Marta De Torres & Myron P. Zalucki
Plants are sessile so have evolved sensitive ways to detect attacking herbivores, and sophisticated strategies to effectively defend themselves. Insect herbivory induces synthesis of the phytohormone jasmonic acid which activates downstream metabolic pathways for various chemical defences such as toxins and digestion inhibitors. Insects are also sophisticated animals, and many have co-evolved physiological adaptations that negate this induced plant defence. Insect behaviour has rarely been studied in the context of induced plant defence, although behavioural...

Data from: Habitat collapse due to overgrazing threatens turtle conservation in marine protected areas

Marjolijn J. A. Christianen, Peter M. J. Herman, Tjeerd J. Bouma, Leon P. M. Lamers, Marieke M. Van Katwijk, Tjisse Van Der Heide, Peter J. Mumby, Brian R. Silliman, Sarah L. Engelhard, Madelon Van De Kerk, Wawan Kiswara & Johan Van De Koppel
Marine protected areas (MPAs) are key tools for combatting the global overexploitation of endangered species. The prevailing paradigm is that MPAs are beneficial in helping to restore ecosystems to more ‘natural’ conditions. However, MPAs may have unintended negative effects when increasing densities of protected species exert destructive effects on their habitat. Here, we report on severe seagrass degradation in a decade-old MPA where hyper-abundant green turtles adopted a previously undescribed below-ground foraging strategy. By digging...

Registration Year

  • 2013

Resource Types

  • Dataset


  • University of Queensland
  • University of Adelaide
  • Radboud University Nijmegen
  • Queensland University of Technology
  • Commonwealth Scientific and Industrial Research Organisation
  • UNSW Sydney
  • University of Oxford
  • University of Sheffield
  • Royal Brisbane and Women's Hospital
  • University of California, Davis