49 Works

Data from: Pollution-tolerant invertebrates enhance greenhouse gas flux in urban wetlands

Andrew S. Mehring, Perran L.M. Cook, Victor Evrard, Stanley B. Grant, Lisa A. Levin & Perran L. M. Cook
One of the goals of urban ecology is to link community structure to ecosystem function in urban habitats. Pollution-tolerant wetland invertebrates have been shown to enhance greenhouse gas (GHG) flux in controlled laboratory experiments, suggesting that they may influence urban wetland roles as sources or sinks of GHG. However, it is unclear if their effects can be detected in highly variable conditions in a field setting. Here we use an extensive dataset on carbon dioxide...

Data from: Skin sloughing in susceptible and resistant amphibians regulates infection with a fungal pathogen

Michel E. B. Ohmer, Rebecca L. Cramp, Catherine J. M. Russo, Craig R. White & Craig E. Franklin
The fungal pathogen Batrachochytrium dendrobatidis (Bd) has been implicated in amphibian population declines globally. Given that Bd infection is limited to the skin in post-metamorphic amphibians, routine skin sloughing may regulate infection. Skin sloughing has been shown to reduce the number of cultivatable microbes on amphibian skin, and Bd infection increases skin sloughing rates at high loads. However, it is unclear whether species specific differences in skin sloughing patterns could regulate Bd population growth on...

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: Reliability of single-use PEEP-valves attached to self-inflating bags during manual ventilation of neonates – an in vitro study

Julia Christine Hartung, Silke Wilitzki, Marta Thio-Lluch, Arjan B. Te Pas, Gerd Schmalisch & Charles Christoph Roehr
Introduction International resuscitation guidelines suggest to use positive end-expiratory pressure (PEEP) during manual ventilation of neonates. Aim of our study was to test the reliability of self-inflating bags (SIB) with single-use PEEP valves regarding PEEP delivery and the effect of different peak inflation pressures (PIP) and ventilation rates (VR) on the delivered PEEP. Methods Ten new single-use PEEP valves from 5 manufacturers were tested by ventilating an intubated 1kg neonatal manikin containing a lung model...

Data from: Relatedness and age reduce aggressive male interactions over mating in domestic fowl

Charlotte Rosher, Anna Favati, Rebecca Dean & Hanne Lovlie
Altruistic behaviour represents a fundamental challenge in evolutionary biology. It is often best understood through kin selection, where favourable behaviour is directed towards relatives. Kin selection can take place when males cooperate to enhance the reproductive success of relatives. Here, we focus on reduced male–male competition over mating as a case of cooperation, by examining male tolerance of matings by related and unrelated competitors. A suitable model for exploring whether relatedness affects male–male interactions over...

Data from: Feedbacks between shallow groundwater dynamics and surface topography on runoff generation in flat fields

Willemijn M. Appels, Patrick W. Bogaart & Sjoerd E. A. T. M. Van Der Zee
In winter, saturation excess (SE) ponding is observed regularly in temperate lowland regions. Surface runoff dynamics are controlled by small topographical features that are unaccounted for in hydrological models. To better understand storage and routing effects of small scale topography and their interaction with shallow groundwater under SE conditions, we developed a model of reduced complexity to investigate SE runoff generation, emphasizing feedbacks between shallow groundwater dynamics and mesotopography. The dynamic specific yield affected unsaturated...

Data from: Climate change leads to increasing population density and impacts of a key island invader

Greg T.W. McClelland, Res Altwegg, Rudi J. Van Aarde, Sam Ferreira, Alan E. Burger, Steven L. Chown & Gregory T. W. McClelland
The considerable threats of invasive rodents to island biodiversity are likely to be compounded by climate change. Forecasts for such interactions have been most pronounced for the Southern Ocean islands where ameliorating conditions are expected to decrease thermal and resource restrictions on rodents. Firm evidence for changing rodent populations in response to climate change, and demonstrations of associated impacts on the terrestrial environment, are nonetheless entirely absent for the region. Using data collected over three...

Data from: Patterns of ecological diversification in thelodonts

Humberto G. Ferrón, Carlos Martínez-Pérez, Susan Turner, Esther Manzanares & Héctor Botella
Here we explore the spatial, temporal and phylogenetic patterns of ecological diversification for the entire clade of thelodonts, one of the earliest groups of vertebrates and longest lasting of the Palaeozoic agnathans in the fossil record. Parsimony and maximum-likelihood methods are used to reconstruct ancestral states of their geographical distributions, habitats and lifestyles. Our results support the concept that thelodonts originated during the Middle?–Late Ordovician probably in marine open waters of Laurasia, with a demersal...

Data from: Eco-energetic consequences of evolutionary shifts in body size (after integrating the Corrigendum)

Martino Malerba, Craig R. White & Dustin J. Marshall
Size imposes physiological and ecological constraints upon all organisms. Theory abounds on how energy flux covaries with body size, yet causal links are often elusive. As a more direct way to assess the role of size, we used artificial selection to evolve the phytoplankton species Dunaliella tertiolecta towards smaller and larger body sizes. Within 100 generations (c. 1 year), we generated a fourfold difference in cell volume among selected lineages. Large-selected populations produced four times...

Data from: Enhancing plant diversity in a novel grassland using seed addition

Tara J. Zamin, Alex Jolly, Steve Sinclair, John W. Morgan & Joslin L. Moore
1.Restoration of novel ecosystems to a historical benchmark may not always be possible or advisable. Novel ecosystems may be managed by targeting specific components and accepting the novelty of other ecosystem attributes. The feasibility of this component-wise management of novel ecosystems has rarely been tested. 2.In a novel grassland, where C3 grasses have replaced C4 grasses, nutrients have been elevated, and diversity has been lost due to a history of agricultural land use, we aimed...

Data from: Detecting elusive aspects of wildlife ecology using drones: new insights on the mating dynamics and operational sex ratios of sea turtles

Gail Schofield, Kostas A. Katselidis, Martin K. S. Lilley, Richard D. Reina & Graeme C. Hays
Offspring and breeding (operational) sex ratios (OSR) are a key component of demographic studies. While offspring sex ratios are often relatively easy to measure, measuring OSRs is often far more problematic. Yet highly skewed OSRs, and a lack of male-female encounters, may be an important extinction driver. Using loggerhead sea turtles (Caretta caretta) as a case study, we showed the utility of drones, i.e. unmanned aerial vehicles (UAVs) to distinguish adult males and females in...

Data from: Experience buffers extrinsic mortality in a group-living bird species

Michael Griesser, Emeline Mourocq, Jonathan Barnaby, Katharine Bowegen, Sönke Eggers, Kevin Fletcher, Radoslav Kozma, Franziska Kurz, Anssi Laurila, Magdalena Nystrand, Enrico Sorato, Jan Ekman & Katharine M. Bowgen
Extrinsic mortality has a strong impact on the evolution of life-histories, prey morphology and behavioural adaptations, but for many animals the causes of mortality are poorly understood. Predation is an important driver of extrinsic mortality and mobile animals form groups in response to increased predation risk. Furthermore, in many species juveniles suffer higher mortality than older individuals, which may reflect a lower phenotypic quality, lower competitiveness, or a lack of antipredator or foraging skills. Here...

Data from: How important is thermal history? Evidence for lasting effects of developmental temperature on upper thermal limits in Drosophila melanogaster

Vanessa Kellermann, Belinda Van Heerwaarden & Carla M. Sgrò
A common practice in thermal biology is to take individuals directly from the field and estimate a range of thermal traits. These estimates are then used in studies aiming to understand broad scale distributional patterns, understanding and predicting the evolution of phenotypic plasticity, and generating predictions for climate change risk. However, the use of field-caught individuals in such studies ignores the fact that many traits are phenotypically plastic and will be influenced by the thermal...

Data from: Signatures of polygenic adaptation associated with climate across the range of a threatened fish species with high genetic connectivity

Katherine A. Harrisson, Stephen J. Amish, Alexandra Pavlova, Shawn R. Narum, Marina Telonis-Scott, Meaghan L. Rourke, Jarod Lyon, Zeb Tonkin, Dean M. Gilligan, Brett A. Ingram, Mark Lintermans, Han Ming Gan, Christopher M. Austin, Gordon Luikart & Paul Sunnucks
Adaptive differences across species’ ranges can have important implications for population persistence and conservation management decisions. Despite advances in genomic technologies, detecting adaptive variation in natural populations remains challenging. Key challenges in gene-environment association studies involve distinguishing the effects of drift from those of selection, and identifying subtle signatures of polygenic adaptation. We used paired-end restriction-site associated-DNA sequencing data (6605 biallelic single nucleotide polymorphisms; SNPs) to examine population structure and test for signatures of adaptation...

Data from: Assessing the sensitivity of biodiversity indices used to inform fire management

Katherine M. Giljohann, Luke T. Kelly, Jemima Connell, Michael F. Clarke, Rohan H. Clarke, Tracey J. Regan & Michael A. McCarthy
Biodiversity indices are widely used to summarise changes in the distribution and abundance of multiple species and measure progress towards management targets. However, the sensitivity of biodiversity indices to the data, landscape classification and conservation values underpinning them are rarely interrogated. There are limited studies to help scientists and land managers use biodiversity indices in the presence of fire and vegetation succession. The geometric mean of species’ relative abundance or occurrence (G) is a biodiversity...

Data from: Task-related effective connectivity reveals that the cortical rich club gates cortex-wide communication

Mario Senden, Niels Reuter, Martijn P. Van Den Heuvel, Rainer Goebel, Gustavo Deco & Matthieu Gilson
Higher cognition may require the globally coordinated integration of specialized brain regions into functional networks. A collection of structural cortical hubs—referred to as the rich club—has been hypothesized to support task-specific functional integration. In the present paper, we use a whole-cortex model to estimate directed interactions between 68 cortical regions from functional magnetic resonance imaging activity for four different tasks (reflecting different cognitive domains) and resting state. We analyze the state-dependent input and output effective...

Data from: Climate-driven mitochondrial selection: a test in Australian songbirds

Annika M. Lamb, Han Ming Gan, Chris Greening, Leo Joseph, Yin P. Lee, Alejandra Morán-Ordóñez & Paul Sunnucks
Diversifying selection between populations that inhabit different environments can promote lineage divergence within species and ultimately drive speciation. The mitochondrial genome (mitogenome) encodes essential proteins of the oxidative phosphorylation (OXPHOS) system and can be a strong target for climate-driven selection (i.e. associated with inhabiting different climates). We investigated whether Pleistocene climate changes drove mitochondrial selection and evolution within Australian birds. First, using phylogeographic analyses of the mitochondrial ND2 gene for 17 songbird species, we identified...

Data from: The quantitative genetic basis of clinal divergence in phenotypic plasticity

Belinda Van Heerwaarden & Carla M. Sgrò
Phenotypic plasticity is thought to be an important mechanism for adapting to environmental heterogeneity. Nonetheless, the genetic basis of plasticity is still not well understood. In Drosophila melanogaster and D. simulans, body size and thermal stress resistance show clinal patterns along the east coast of Australia, and exhibit plastic responses to different developmental temperatures. The genetic basis of thermal plasticity, and whether the genetic effects underlying clinal variation in traits and their plasticity are similar,...

Data from: Cooperative defence operates by social modulation of biogenic amine levels in the honeybee brain

Morgane Nouvian, Souvik Mandal, Charlène Jamme, Charles Claudianos, Patrizia D'Ettorre, Judith Reinhard, Andrew B. Barron & Martin Giurfa
The defence of a society often requires that some specialized members coordinate to repel a threat at personal risk. This is especially true for honeybee guards, which defend the hive and may sacrifice their lives upon stinging. Central to this cooperative defensive response is the sting alarm pheromone, which has isoamyl acetate (IAA) as its main component. Although this defensive behaviour has been well described, the neural mechanisms triggered by IAA to coordinate stinging have...

Data from: Interactions between host sex and age of exposure modify the virulence-transmission trade-off

Stephen A.Y. Gipson, Matthew D. Hall & S. A. Y. Gipson
The patterns of immunity conferred by host sex or age represent two sources of host heterogeneity that can potentially shape the evolutionary trajectory of disease. With each host sex or age encountered, a pathogen’s optimal exploitative strategy may change, leading to considerable variation in expression of pathogen transmission and virulence. To date, these host characteristics have been studied in the context of host fitness alone, overlooking the effects of host sex and age on the...

Data from: The remarkable convergence of skull shape in crocodilians and toothed whales

Matthew R. McCurry, Alistair R. Evans, Erich M.G. Fitzgerald, Justin W. Adams, Philip D. Clausen, Colin R. McHenry & Erich M. G. Fitzgerald
The striking resemblance of long-snouted aquatic mammals and reptiles has long been considered an example of morphological convergence, yet the true cause of this similarity remains untested. We addressed this deficit through three-dimensional morphometric analysis of the full diversity of crocodilian and toothed whale (Odontoceti) skull shapes. Our focus on biomechanically important aspects of shape allowed us to overcome difficulties involved in comparing mammals and reptiles, which have fundamental differences in the number and position...

Data from: Relaxation of herbivore-mediated selection drives the evolution of genetic covariances between plant competitive and defense traits

Akane Uesugi, Tim Connallon, Andre Kessler & Keyne Monro
Insect herbivores are important mediators of selection on traits that impact plant defense against herbivory and competitive ability. Although recent experiments demonstrate a central role for herbivory in driving rapid evolution of defense and competition-mediating traits, whether and how herbivory shapes heritable variation in these traits remains poorly understood. Here, we evaluate the structure and evolutionary stability of the G matrix for plant metabolites that are involved in defense and allelopathy in the tall goldenrod,...

Data from: Wolbachia infection alters the relative abundance of resident bacteria in adult Aedes aegypti mosquitoes, but not larvae

Michelle D. Audsley, Andrei Seleznev, D. Albert Joubert, Megan Woolfit, Scott L. O'Neill & Elizabeth A. McGraw
Insect-symbiont interactions are known to play key roles in host functions and fitness. The common insect endosymbiont Wolbachia can reduce the ability of several human pathogens, including arboviruses and the malaria parasite, to replicate in insect hosts. Wolbachia does not naturally infect Aedes aegypti, the primary vector of dengue virus, but transinfected Ae. aegypti have anti-dengue virus properties and are currently being trialled as a dengue biocontrol strategy. Here, we assess the impact of Wolbachia...

Data from: Darker where cold and wet: Australian birds follow their own version of Gloger's rule

Kaspar Delhey
Gloger's rule is usually interpreted as predicting darker coloured animals in warmer and more humid/vegetated regions. The relative importance of temperature and rainfall or vegetation is however unclear, and often only one variable is tested at a time, mainly through proxies. Here, I assess the predictions of Gloger's rule for interspecific achromatic plumage variation (dark to light variation) for an entire avifauna (551 species of Australian landbirds). I tested the effects of climatic variables (temperature...

Data from: No fitness benefits of early molt in a fairy-wren: relaxed sexual selection under genetic monogamy?

Marie Fan, Michelle L. Hall, Sjouke A. Kingma, Lisa M. Mandeltort, Nataly Hidalgo Aranzamendi, Kaspar Delhey & Anne Peters
The evolution of male ornamentation has long been the focus of sexual selection studies. However, evidence is accumulating that sexually selected traits can also be lost, although the process is ill-understood. In male fairy-wrens (Malurus spp.), early molt into the seasonal breeding plumage is critical for obtaining extra-pair paternity (EPP), which reaches very high levels in these socially monogamous songbirds. A notable exception is the purple-crowned fairy-wren, Malurus coronatus, which, like its congeners, breeds cooperatively,...

Registration Year

  • 2017
    49

Resource Types

  • Dataset
    49

Affiliations

  • Monash University
    49
  • University of Melbourne
    7
  • University of Queensland
    5
  • La Trobe University
    4
  • Deakin University
    3
  • University of Sydney
    3
  • University of Canberra
    3
  • Monash University Malaysia
    2
  • University of Groningen
    2
  • Flinders University
    2