44 Works

Data from: Mismatch in the distribution of floral ecotypes and pollinators: insights into the evolution of sexually deceptive orchids

Ryan D. Phillips, Bjorn Bohman, Janet M. Anthony, Siegfried L. Krauss, Kingsley W. Dixon & Rod Peakall
Plants are predicted to show floral adaptation to geographic variation in the most effective pollinator, potentially leading to reproductive isolation and genetic divergence. Many sexually deceptive orchids attract just a single pollinator species, limiting opportunities to experimentally investigate pollinator switching. Here we investigate Drakaea concolor, which attracts two pollinator species. Using pollinator choice tests, we detected two morphologically similar ecotypes within D. concolor. The common ecotype only attracted Zaspilothynnus gilesi, while the rare ecotype also...

Data from: Queen pheromones modulate DNA methyltransferase activity in bee and ant workers

Luke Holman, Kalevi Trontti & Heikki Helanterä
DNA methylation is emerging as an important regulator of polyphenism in the social insects. Research has concentrated on differences in methylation between queens and workers, though we hypothesized that methylation is involved in mediating other flexible phenotypes, including pheromone-dependent changes in worker behaviour and physiology. Here, we find that exposure to queen pheromone affects the expression of two DNA methyltransferase genes in Apis mellifera honeybees and in two species of Lasius ants, but not in...

Data from: Maternal effects on offspring size and number in mosquitofish, Gambusia holbrooki

Rose E. O'Dea, Regina Vega-Trejo, Megan L. Head & Michael D. Jennions
Given a trade-off between offspring size and number, all mothers are predicted to produce the same optimal-sized offspring in a given environment. In many species, however, larger and/or older mothers produce bigger offspring. There are several hypotheses to explain this but they lack strong empirical support. In organisms with indeterminate growth, there is the additional problem that maternal size and age are positively correlated, so what are their relative roles in determining offspring size? To...

Data from: Evidence for aggressive mimicry in an adult brood parasitic bird, and generalised defences in its host

William E. Feeney, Jolyon Troscianko, Naomi E. Langmore & Claire N. Spottiswoode
Mimicry of a harmless model (aggressive mimicry) is used by egg, chick and fledgling brood parasites that resemble the host's own eggs, chicks and fledglings. However, aggressive mimicry may also evolve in adult brood parasites, to avoid attack from hosts and/or manipulate their perception of parasitism risk. We tested the hypothesis that female cuckoo finches (Anomalospiza imberbis) are aggressive mimics of female Euplectes weavers, such as the harmless, abundant and sympatric southern red bishop (Euplectes...

Data from: Translocation tactics: a framework to support the IUCN Guidelines for wildlife translocations and improve the quality of applied methods

William G. Batson, Iain J. Gordon, Donald B. Fletcher & Adrian D. Manning
1. Translocation is a popular conservation tool, but the outcomes are variable. Many tactics can be used to improve the probability of success, but a comprehensive summary of these does not exist. This increases the risk that valuable tactics will be overlooked, and inhibits effective communication. 2. We assess the diversity of ‘translocation tactics’ used in mammal and bird translocations, by reviewing the IUCN/SSC Guidelines for Reintroduction and other Conservation Translocations, 195 peer-reviewed articles and...

Data from: Susceptibility of amphibians to chytridiomycosis is associated with MHC class II conformation

Arnaud Bataille, Scott D. Cashins, Laura Grogan, Lee F. Skerratt, David Hunter, Michael McFaddan, Benjamin Scheele, Laura A. Brannelly, Amy Macris, Peter S. Harlow, Sara Bell, Lee Berger & Bruce Waldman
The pathogenic chytrid fungus Batrachochytrium dendrobatidis (Bd) can cause precipitous population declines in its amphibian hosts. Responses of individuals to infection vary greatly with the capacity of their immune system to respond to the pathogen. We used a combination of comparative and experimental approaches to identify major histocompatibility complex class II (MHC-II) alleles encoding molecules that foster the survival of Bd-infected amphibians. We found that Bd-resistant amphibians across four continents share common amino acids in...

Data from: Sex-specific maternal effects in a viviparous fish

Loeske E. B. Kruuk, Julianne Livingston, Andrew Kahn & Michael D. Jennions
Mothers vary in their effects on their offspring, but studies of variation in maternal effects rarely ask whether differences between mothers are consistent for sons and daughters. Here, we analysed maternal effects in the mosquitofish Gambusia holbrooki for development time and adult size of sons and daughters, and a primary male sexual character (gonopodium length). We found substantial maternal effects on all traits, most notably for gonopodium length. There were significant correlations within each sex...

Data from: Lineage range estimation method reveals fine-scale endemism linked to Pleistocene stability in Australian rainforest herpetofauna

Dan F. Rosauer, Renee A. Catullo, Jeremy VanDerWal, Adnan Moussalli & Craig Moritz
Areas of suitable habitat for species and communities have arisen, shifted, and disappeared with Pleistocene climate cycles, and through this shifting landscape, current biodiversity has found paths to the present. Evolutionary refugia, areas of relative habitat stability in this shifting landscape, support persistence of lineages through time, and are thus crucial to the accumulation and maintenance of biodiversity. Areas of endemism are indicative of refugial areas where diversity has persisted, and endemism of intraspecific lineages...

Data from: Detecting macroevolutionary self-destruction from phylogenies

Lindell Bromham, Xia Hua & Marcel Cardillo
Phylogenetic analyses have lent support to the concept of lineage selection: that biological lineages can have heritable traits that influence their capacity to persist and diversify, and thereby affect their representation in biodiversity. While many discussions have focused on “positive” lineage selection, where stably heritable properties of lineages enhance their diversification rate, there are also intriguing examples that seem to represent “negative” lineage selection, where traits reduce the likelihood that a lineage will persist or...

Data from: Ploidy and domestication are associated with genome size variation in Palms

Bee F. Gunn, Luc Baudouin, Thierry Beulé, Pascal Ilbert, Christophe Duperray, Michael Crisp, Auguste Issali, Jean-Louis Konan & Alain Rival
PREMISE OF THE STUDY: The genome size of a species (C-value) is associated with growth, development and adaptation to environmental changes. Angiosperm C-values range 1200-fold and frequently vary within species, although little is known about the impacts of domestication on genome size. Genome size variation among related species of palms is of evolutionary significance because changes characterize clades and may be associated with polyploidy, transposon amplifications, deletions, or rearrangements. Further knowledge of genome size will...

Data from: Crying wolf to a predator: deceptive vocal mimicry by a bird protecting young

Branislav Igic, Jessica McLachlan, Inkeri Lehtinen & Robert D. Magrath
Animals often mimic dangerous or toxic species to deter predators; however, mimicry of such species may not always be possible and mimicry of benign species seems unlikely to confer anti-predator benefits. We reveal a system in which a bird mimics the alarm calls of harmless species to fool a predator 40 times its size and protect its offspring against attack. Our experiments revealed that brown thornbills (Acanthiza pusilla) mimic a chorus of other species' aerial...

Data from: Performance of social network sensors during Hurricane Sandy

Yury Kryvasheyeu, Haohui Chen, Esteban Moro, Pascal Van Hentenryck & Manuel Cebrian
Information flow during catastrophic events is a critical aspect of disaster management. Modern communication platforms, in particular online social networks, provide an opportunity to study such flow and derive early-warning sensors, thus improving emergency preparedness and response. Performance of the social networks sensor method, based on topological and behavioral properties derived from the “friendship paradox”, is studied here for over 50 million Twitter messages posted before, during, and after Hurricane Sandy. We find that differences...

Data from: Exploiting the richest patch has a fitness pay-off for the migratory swift parrot

Dejan Stojanovic, Aleks Terauds, Martin J. Westgate, Matthew H. Webb, David A. Roshier & Robert Heinsohn
1. Unlike philopatric migrants, the ecology of nomadic migrants is less well understood. This life-history strategy reflects responses to spatiotemporal variation in resource availability and the need to find resource rich patches to initiate breeding. The fitness consequences of movements between regions of patchily distributed resources can provide insight into ecology of all migrants and their responses to global change. 2. We link broad-scale data on spatiotemporal fluctuation in food availability to data on settlement...

Data from: Convergent evolution across the Australian continent: ecotype diversification drives morphological convergence in two distantly related clades of Australian frogs

M. Vidal-García & J. S. Keogh
Animals from different clades but subject to similar environments often evolve similar body shapes and physiological adaptations due to convergent evolution, but this has been rarely tested at the transcontinental level and across entire classes of animal. Australia's biome diversity, isolation and aridification history provide excellent opportunities for comparative analyses on broad-scale macroevolutionary patterns. We collected morphological and environmental data on eighty-four (98%) Australian hylid frog species and categorized them into ecotypes. Using a phylogenetic...

Data from: Causes and consequences of individual variation in the extent of post-juvenile moult in the blue tit Cyanistes caeruleus (Passeriformes: Paridae)

Ross A. Crates, Ben C. Sheldon & Colin J. Garroway
Moult, comprising the growth or replacement of feathers in birds, is an energetically demanding process. As a result, in many species, the extent of the post-juvenile moult can vary substantially. However, the reasons underlying this variation remain poorly understood, and the potential life-history consequences of variation in moult extent are even less clear. In the present study, we aimed to use individual-specific data to identify factors affecting the extent of the post-juvenile moult in a...

Data from: Citizen science program shows urban areas have lower occurrence of frog species, but not accelerated declines

Martin J. Westgate, Ben C. Scheele, Karen Ikin, Anke Maria Hoefer, R. Matthew Beaty, Murray Evans, Will Osborne, David Hunter, Laura Rayner & Don A. Driscoll
Understanding the influence of landscape change on animal populations is critical to inform biodiversity conservation efforts. A particularly important goal is to understand how urban density affects the persistence of animal populations through time, and how these impacts can be mediated by habitat provision; but data on this question are limited for some taxa. Here, we use data from a citizen science monitoring program to investigate the effect of urbanization on patterns of frog species...

Data from: Behavioral plasticity and GxE of reproductive tactics in Nicrophorus vespilloides burying beetles

Mauricio J. Carter, Megan L. Head, Allen J. Moore & Nick J. Royle
Phenotypic plasticity is important in the evolution of traits and facilitates adaptation to rapid environmental changes. However, variation in plasticity at the individual level, and the heritable basis underlying this plasticity is rarely quantified for behavioral traits. Alternative behavioral reproductive tactics are key components of mating systems but are rarely considered within a phenotypic plasticity framework (i.e., as reaction norms). Here, using lines artificially selected for repeated mating rate, we test for genetic (GxE) sources...

Data from: Local origin of global contact numbers in frictional ellipsoid packings

Fabian M. Schaller, Max Neudecker, Mohammad Saadatfar, Gary W. Delaney, Gerd E. Schröder-Turk & Matthias Schröter
In particulate soft matter systems the average number of contacts Z of a particle is an important predictor of the mechanical properties of the system. Using x-ray tomography, we analyze packings of frictional, oblate ellipsoids of various aspect ratios α, prepared at different global volume fractions ϕg. We find that Z is a monotonically increasing function of ϕg for all α. We demonstrate that this functional dependence can be explained by a local analysis where...

Data from: Transcriptomic differences between day and night in Acropora millepora provide new insights into metabolite exchange and light-enhanced calcification in corals

Anthony Bertucci, Sylvain Forêt, Eldon E. Ball & David J. Miller
The evolutionary success of reef-building corals is often attributed to their symbiotic relationship with photosynthetic dinoflagellates of the genus Symbiodinium, but metabolic interactions between the partners and the molecular bases of light-enhanced calcification (LEC) are not well understood. Here, the metabolic bases of the interaction between the coral Acropora millepora and its dinoflagellate symbiont were investigated by comparing gene expression levels under light and dark conditions at the whole transcriptome level. Among the 497 differentially...

Registration Year

  • 2015
    44

Resource Types

  • Dataset
    44

Affiliations

  • Australian National University
    44
  • James Cook University
    4
  • University of Cambridge
    3
  • Macquarie University
    3
  • Commonwealth Scientific and Industrial Research Organisation
    3
  • University of Exeter
    2
  • University of Helsinki
    2
  • University of Canberra
    2
  • NSW Office of Environment & Heritage
    1
  • Max Planck Institute for Dynamics and Self Organization
    1