43 Works

Data from: Bayesian estimation of the global biogeographical history of the Solanaceae

Julia Dupin, Nicholas J. Matzke, Tiina Särkinen, Sandra Knapp, Richard G. Olmstead, Lynn Bohs & Stacey D. Smith
Aim: The tomato family Solanaceae is distributed on all major continents except Antarctica and has its centre of diversity in South America. Its worldwide distribution suggests multiple long-distance dispersals within and between the New and Old Worlds. Here, we apply maximum likelihood (ML) methods and newly developed biogeographical stochastic mapping (BSM) to infer the ancestral range of the family and to estimate the frequency of dispersal and vicariance events resulting in its present-day distribution. Location:...

Data from: Nuclear DNA based species delineations of Coccus scale insects in symbiosis with plants and ants, and the role of plant epicuticular wax in structuring associations

Swee-Peck Quek, Shouhei Ueda, Penny J. Gullan, Takumasa Kondo, Mitsuru Hattori, Takao Itioka, Kaori Murase & Takao Itino
We undertook phylogenetic analysis of nuclear DNA to elucidate species boundaries in the symbiotic Coccus scale insects associated with mutualistic Crematogaster ants and Macaranga plants occurring in the ever-wet forests of Southeast Asia. The coccid specimens clustered into ten lineages, each corresponding to a morphospecies assignment. The lineage identified as C. secretus was separated from the Main Clade by an outgroup. We also examined all pairwise associations among the three symbiont guilds to understand how...

Data from: Predicting range-shift success potential for tropical marine fishes using external morphology

Shannen M. Smith, Rebecca J. Fox, Jennifer M. Donelson, Megan L. Head & David J. Booth
With global change accelerating the rate of species' range shifts, predicting which are most likely to establish viable populations in their new habitats is key to understanding how biological systems will respond. Annually, in Australia, tropical fish larvae from the Great Barrier Reef (GBR) are transported south via the East Australian Current (EAC), settling into temperate coastal habitats for the summer period, before experiencing near-100% mortality in winter. However, within 10 years, predicted winter ocean...

Data from: Phylogenomic reconstruction of sportive lemurs (genus Lepilemur) recovered from mitogenomes with inferences for Madagascar biogeography

Runhua Lei, Cynthia L. Frasier, Melissa T.R. Hawkins, Shannon E. Engberg, Carolyn A. Bailey, Steig E. Johnson, Adam T. McLain, Colin P. Groves, George H. Perry, Stephen D. Nash, Russell A. Mittermeier &
The family Lepilemuridae includes 26 species of sportive lemurs, most of which were recently described. The cryptic morphological differences confounded taxonomy until recent molecular studies; however, some species’ boundaries remain uncertain. To better understand the genus Lepilemur, we analyzed 35 complete mitochondrial genomes representing all recognized 26 sportive lemur taxa and estimated divergence dates. With our dataset we recovered 25 reciprocally monophyletic lineages, as well as an admixed clade containing Lepilemur mittermeieri and Lepilemur dorsalis....

Data from: Egg size investment in superb fairy-wrens: helper effects are modulated by climate

Naomi E. Langmore, Liam D. Bailey, Robert G. Heinsohn, Andrew F. Russell, Rebecca M. Kilner, L. D. Bailey, N. E. Langmore, R. M. Kilner & A. F. Russell
Natural populations might exhibit resilience to changing climatic conditions if they already show adaptive flexibility in their reproductive strategies. In cooperative breeders, theory predicts that mothers with helpers should provide less care when environmental conditions are favourable, but maintain high investment when conditions are challenging. Here, we test for evidence of climate-mediated flexibility in maternal investment in the cooperatively breeding superb fairy-wren Malurus cyaneus. We focus on egg size because in this species egg size...

Data from: Artificial selection on male genitalia length alters female brain size

Severine D. Buechel, Isobel Booksmythe, Alexander Kotrschal, Michael D. Jennions, Kolm Niclas & Niclas Kolm
Male harassment is a classic example of how sexual conflict over mating leads to sex-specific behavioural adaptations. Females often suffer significant costs from males attempting forced copulations, and the sexes can be in an arms race over male coercion. Yet, despite recent recognition that divergent sex-specific interests in reproduction can affect brain evolution, sexual conflict has not been addressed in this context. Here, we investigate whether artificial selection on a correlate of male success at...

Data from: Do female Nicrophorus vespilloides reduce direct costs by choosing males that mate less frequently?

Paul E. Hopwood, Geoffrey P. F. Mazué, Mauricio J. Carter, Megan L. Head, Allen J. Moore & Nick J. Royle
Sexual conflict occurs when selection to maximize fitness in one sex does so at the expense of the other sex. In the burying beetle Nicrophorus vespilloides, repeated mating provides assurance of paternity at a direct cost to female reproductive productivity. To reduce this cost, females could choose males with low repeated mating rates or smaller, servile males. We tested this by offering females a dichotomous choice between males from lines selected for high or low...

Data from: Is specialization an evolutionary dead-end? Testing for differences in speciation, extinction and trait transition rates across diverse phylogenies of specialists and generalists.

Emma Day, Xia Hua, Lindell Bromham, E. H. Day, X. Hua & L. Bromham
Specialization has often been claimed to be an evolutionary dead end, with specialist lineages having a reduced capacity to persist or diversify. In a phylogenetic comparative framework, an evolutionary dead end may be detectable from the phylogenetic distribution of specialists, if specialists rarely give rise to large, diverse clades. Previous phylogenetic studies of the influence of specialization on macroevolutionary processes have demonstrated a range of patterns, including examples where specialists have both higher and lower...

Data from: Selection on an antagonistic behavioral trait can drive rapid genital coevolution in the burying beetle, Nicrophorus vespilloides

Paul Edward Hopwood, Megan L. Head, Eleanor J. Jordan, Mauricio J. Carter, Emma Davey, Allen J. Moore, Nick J. Royle & Paul E. Hopwood
Male and female genital morphology varies widely across many taxa, and even among populations. Disentangling potential sources of selection on genital morphology is problematic because each sex is predicted to respond to adaptations in the other due to reproductive conflicts of interest. To test how variation in this sexual conflict trait relates to variation in genital morphology we used our previously developed artificial selection lines for high and low repeated mating rates. We selected for...

Data from: Condition-dependent trade-offs between sexual traits, body condition and immunity: the effect of novel habitats

Maider Iglesias-Carrasco, Megan Head, Michael Jennions & Carlos Cabido
Background: The optimal allocation of resources to sexual signals and other life history traits is usually dependent on an individual's condition, while variation in the expression of sexual traits across environments depends on the combined effects of local adaptation, mean condition, and phenotypic responses to environment-specific cues that affect resource allocation. A clear contrast can often be drawn between natural habitats and novel habitats, such as forest plantations and urban areas. In some species, males...

Data from: Where do animals come from during post-fire population recovery? Implications for ecological and genetic patterns in post-fire landscapes

Sam C. Banks, Lachlan McBurney, David Blair, Ian D. Davies & David B. Lindenmayer
Identifying where animals come from during population recovery can help to understand the impacts of disturbance events and regimes on species distributions and genetic diversity. Alternative recovery processes for animal populations affected by fire include external recolonization, nucleated recovery from refuges, or in situ survival and population growth. We used simulations to develop hypotheses about ecological and genetic patterns corresponding to these alternative models. We tested these hypotheses in a study of the recovery of...

Data from: Predation can select for later and more synchronous arrival times in migrating species

Anna M. F. Harts, Nadiah P. Kristensen & Hanna Kokko
For migratory species, the timing of arrival at breeding grounds is an important determinant of fitness. Too early arrival at the breeding ground is associated with various costs, and we focus on one understudied cost: that migrants can experience a higher risk of predation if arriving earlier than the bulk of the breeding population. We show, using both a semi-analytic and simulation model, that predation can select for later arrival. This is because of safety...

Data from: Lifespan and reproductive cost explain interspecific variation in the optimal onset of reproduction

Emeline Mourocq, Pierre Bize, Sandra Bouwhuis, Russell Bradley, Anne Charmantier, Carlos De La Cruz, Szymon Marian Obniak, Richard H. M. Espie, Márton Herenyi, Hermann Hötker, Oliver Kruger, John Marzluff, Anders P. Møller, Shinichi Nakagawa, Richard A. Phillips, Andrew N. Radford, Alexandre Roulin, János Török, Juliana Valencia, Martijn Van De Pol, Ian G. Warkentin, Isabel S. Winney, Andrew G. Wood, Michael Griesser & Szymon M. Drobniak
Fitness can be profoundly influenced by the age at first reproduction (AFR), but to date the AFR-fitness relationship only has been investigated intraspecifically. Here we investigated the relationship between AFR and average lifetime reproductive success (LRS) across 34 bird species. We assessed differences in the deviation of the Optimal AFR (i.e., the species-specific AFR associated with the highest LRS) from the age at sexual maturity, considering potential effects of life-history as well as social and...

Data from: Relative costs of offspring sex and offspring survival in a polygynous mammal

Hannah Froy, Craig A. Walling, Josephine M. Pemberton, Tim H. Clutton-Brock, Loeske E.B. Kruuk & Loeske E. B. Kruuk
Costs of reproduction are expected to be ubiquitous in wild animal populations and understanding the drivers of variation in these costs is an important aspect of life-history evolution theory. We use a 43 year dataset from a wild population of red deer to examine the relative importance of two factors that influence the costs of reproduction to mothers, and to test whether these costs vary with changing ecological conditions. Like previous studies, our analyses indicate...

Data from: The impact of seasonality on niche breadth, distribution range and species richness: a theoretical exploration of Janzen's hypothesis

Xia Hua
Being invoked as one of the candidate mechanisms for the latitudinal patterns in biodiversity, Janzen's hypothesis states that the limited seasonal temperature variation in the tropics generates greater temperature stratification across elevations, which makes tropical species adapted to narrower ranges of temperatures and have lower effective dispersal across elevations than species in temperate regions. Numerous empirical studies have documented latitudinal patterns in species elevational ranges and thermal niche breadths that are consistent with the hypothesis,...

Data from: Mate choice and the operational sex ratio: an experimental test with robotic crabs

Catherine L. Hayes, Sophie Callander, Isobel Booksmythe, Michael D. Jennions, Patricia R. Y. Backwell, C. L. Hayes, S. Callander, I. Booksmythe, M. D. Jennions & P. R. Y. Backwell
The operational sex ratio (OSR) (sexually active males: receptive females) predicts the intensity of competition for mates. It is less clear, however, under what circumstances the OSR predicts the strength of sexual selection – that is, the extent to which variation in mating success is attributable to traits that increase the bearer's attractiveness and/or fighting ability. To establish causality experiments are required that manipulate OSR. Furthermore, if it is possible to control for any OSR-dependent...

Data from: Global ecological success of Thalassoma fishes in extreme coral reef habitats

Christopher J. Fulton, Peter C. Wainwright, Andrew S. Hoey & David R. Bellwood
Phenotypic adaptations can allow organisms to relax abiotic selection and facilitate their ecological success in challenging habitats, yet we have relatively little data for the prevalence of this phenomenon at macroecological scales. Using data on the relative abundance of coral reef wrasses and parrotfishes (f. Labridae) spread across three ocean basins and the Red Sea, we reveal the consistent global dominance of extreme wave-swept habitats by fishes in the genus Thalassoma, with abundances up to...

Data from: Are sexually selected traits affected by a poor environment early in life?

Regina Vega-Trejo, Michael D. Jennions & Megan L. Head
Background: Challenging conditions experienced early in life, such as a restricted diet, can detrimentally affect key life-history traits. Individuals can reduce these costs by delaying their sexual maturation, albeit at the price of the later onset of breeding, to eventually reach the same adult size as individuals that grow up in a benevolent environment. Delayed maturation can, however, still lead to other detrimental morphological and physiological changes that become apparent later in adulthood (e.g. shorter...

Data from: Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation

Tim Stuart, Steven Eichten, Jonathan Cahn, Yuliya Karpievitch, Justin Borevitz, Ryan Lister, Steven R Eichten, Justin O Borevitz & Yuliya V Karpievitch
Variation in the presence or absence of transposable elements (TEs) is a major source of genetic variation between individuals. Here, we identified 23,095 TE presence/absence variants between 216 Arabidopsis accessions. Most TE variants were rare, and we find these rare variants associated with local extremes of gene expression and DNA methylation levels within the population. Of the common alleles identified, two thirds were not in linkage disequilibrium with nearby SNPs, implicating these variants as a...

Data from: Phylogenomics at the tips: inferring lineages and their demographic history in a tropical lizard, Carlia amax

Sally Potter, Jason G. Bragg, Benjamin M. Peter, Ke Bi & Craig Moritz
High-throughput sequencing approaches offer opportunities to better understand the evolutionary processes driving diversification, particularly in nonmodel organisms. In particular, the 100–1000's of loci that can now be sequenced are providing unprecedented power in population, speciation and phylogenetic studies. Here, we apply an exon capture approach to generate >99% complete sequence and SNP data across >2000 loci from a tropical skink, Carlia amax, and exploit these data to identify divergent lineages and infer their relationships and...

Data from: Dynamic species co-occurrence networks require dynamic biodiversity surrogates

Ayesha I. T. Tulloch, Iadine Chadès, Yann Dujardin, Martin J. Westgate, Peter W. Lane & David Lindenmayer
In conservation it is inevitable that surrogates be selected to represent the occurrence of hard–to–find species and find priority locations for management. However, species co–occurrence can vary over time. Here we demonstrate how temporal dynamics in species co–occurrence influence the ability of managers to choose the best surrogate species. We develop an efficient optimisation formulation that selects the optimal set of complementary surrogate species from any co–occurrence network. We apply it to two Australian datasets...

Data from: Population and phylogenomic decomposition via genotyping-by-sequencing in Australian Pelargonium

Adrienne B. Nicotra, Caroline Chong, Jason G. Bragg, Chong Ren Ong, Nicola C. Aitken, Aaron Chuah, Brendan Lepschi & Justin O. Borevitz
Species delimitation has seen a paradigm shift as increasing accessibility of genomic-scale data enables separation of lineages with convergent morphological traits and the merging of recently diverged ecotypes that have distinguishing characteristics. We inferred the process of lineage formation among Australian species in the widespread and highly variable genus Pelargonium by combining phylogenomic and population genomic analyses along with breeding system studies and character analysis. Phylogenomic analysis and population genetic clustering supported seven of the...

Data from: Topology, divergence dates, and macroevolutionary inferences vary between different tip-dating approaches applied to fossil theropods (Dinosauria)

David W. Bapst, April M. Wright, Nick J. Matzke, Graeme T. Lloyd, A. M. Wright, G. T. Lloyd, N. J. Matzke & D. W. Bapst
Dated phylogenies of fossil taxa allow palaeobiologists to estimate the timing of major divergences and placement of extinct lineages, and to test macroevolutionary hypotheses. Recently developed Bayesian ‘tip-dating’ methods simultaneously infer and date the branching relationships among fossil taxa, and infer putative ancestral relationships. Using a previously published dataset for extinct theropod dinosaurs, we contrast the dated relationships inferred by several tip-dating approaches and evaluate potential downstream effects on phylogenetic comparative methods. We also compare...

Data from: Parental thermal environment alters offspring sex ratio and fitness in an oviparous lizard

Lisa E. Schwanz
The environment experienced by parents can impact the phenotype of their offspring (parental effects), a critical component of organismal ecology and evolution in variable or changing environments. Although temperature is a central feature of the environment for ectotherms, its role in parental effects has been little explored until recently. Here, parental basking opportunity was manipulated in an oviparous lizard with temperature-dependent sex determination, the jacky dragon (Amphibolurus muricatus). Eggs were incubated at a temperature that...

Data from: Basking behavior predicts the evolution of heat tolerance in Australian rainforest lizards

Martha M. Muñoz, Gary M. Langham, Matthew C. Brandley, Dan Rosauer, Stephen E. Williams, Craig Moritz & Dan F. Rosauer
There is pressing urgency to understand how tropical ectotherms can behaviorally and physiologically respond to climate warming. We examine how basking behavior and thermal environment interact to influence evolutionary variation in thermal physiology of multiple species of lygosomine rainforest skinks from the Wet Tropics of northeastern Queensland, Australia (AWT). These tropical lizards are behaviorally specialized to exploit canopy or sun, and are distributed across steep thermal clines in the AWT. Using phylogenetic analyses, we demonstrate...

Registration Year

  • 2016
    43

Resource Types

  • Dataset
    43

Affiliations

  • Australian National University
    43
  • University of Zurich
    4
  • University of Exeter
    3
  • James Cook University
    3
  • Iowa State University
    3
  • University of Washington
    2
  • University of California System
    2
  • University of Queensland
    2
  • University of Georgia
    2
  • University of Cambridge
    2