31 Works

Spatial and temporal variation in prey colour patterns for background-matching across a continuous heterogeneous environment

Marleen Baling, Devi Stuart-Fox, Dianne H. Brunton & James Dale
In heterogeneous habitats, camouflage via background-matching can be challenging because visual characteristics can vary dramatically across small spatial scales. Additionally, temporal variation in signalling functions of colouration can affect crypsis, especially when animals use colouration seasonally for intraspecific signalling (e.g. mate selection). We currently have a poor understanding of how wild prey optimise background-matching within continuously heterogeneous habitats, and whether this is affected by requirements of intraspecific signalling across biological seasons. Here, we quantified colour...

Anthropogenic and natural barriers affect genetic connectivity in an Alpine butterfly

Daronja Trense, Tom Schmidt, Qiong Yang, Jessica Chung, Ary Hoffmann & Klaus Fischer
Dispersal is a key biological process serving several functions including connectivity among populations. Habitat fragmentation caused by natural or anthropogenic structures may hamper dispersal, thereby disrupting genetic connectivity. Investigating factors affecting dispersal and gene flow is important in the current era of anthropogenic global change, as dispersal comprises a vital part of a species’ resilience to environmental change. Using fine-scale landscape genomics, we investigate gene flow and genetic structure of the Sooty Copper butterfly (Lycaena...

The roles of acclimation and behavior in buffering climate change impacts along elevational gradients

Urtzi Enriquez-Urzelai, Reid Tingley, Michael Kearney, Martina Sacco, Antonio Palacio, Miguel Tejedo & Alfredo Nicieza
1. The vulnerability of species to climate change is jointly influenced by geographic phenotypic variation, acclimation, and behavioral thermoregulation. The importance of interactions between these factors, however, remains poorly understood. 2. We demonstrate how advances in mechanistic niche modelling can be used to integrate and assess the influence of these sources of uncertainty in forecasts of climate change impacts. 3. We explored geographic variation in thermal tolerance (i.e. maximum and minimum thermal limits) and its...

Age of first infection across a range of parasite taxa in a wild mammalian population

Caroline Glidden, Leigh Combrink, Brianna Beechler, Bryan Charleston, Anson Koehler, Danielle Sisson, Gasser Robin, Abdul Jabbar & Anna Jolles
Newborn mammals have an immature immune system that cannot sufficiently protect them against infectious diseases. However, variation in the effectiveness of maternal immunity against different parasites may couple with temporal trends in parasite exposure to influence disparities in timing of infection risk. Determining the relationship between age and infection risk is critical in identifying the portion of a host population that contributes to parasite dynamics, as well as the parasites that regulate host recruitment. While...

Multi-species models reveal that eDNA metabarcoding is more sensitive than backpack electrofishing for conducting fish surveys in freshwater streams

Emily McColl-Gausden, Andrew Weeks, Rhys Coleman, Katie Robinson, Sue Song, Tarmo Raadik & Reid Tingley
Environmental DNA (eDNA) sampling can provide accurate, cost-effective, landscape-level data on species distributions. Previous studies have compared the sensitivity of eDNA sampling to traditional sampling methods for single species, but similar comparative studies on multi-species eDNA metabarcoding are rare. Using hierarchical species occupancy-detection models, we examined whether key choices associated with eDNA metabarcoding (primer selection, low-abundance read filtering, and the number of positive water samples used to classify a species as present at a site)...

Rapid beard darkening predicts contest outcome, not copulation success, in bearded dragon lizards

Katrina Rankin
Rapid colour change is widespread in animals and allows them to respond dynamically to the physical and social environment. However, few studies have examined the information conveyed by dynamic colour signals in different social contexts, such as courtship and rivalry contests. Furthermore, dynamic colour change on different body regions may be subject to different selection pressures and therefore serve different functions. We tested whether male colour or colour change predict contest outcome in male-male interactions,...

Misinformation, internet honey trading, and beekeepers drive a plant invasion

Magdalena Lenda, Piotr Skórka, Karolina Kuszewska, Dawid Moroń, Michał Bełcik, Renata Baczek Kwinta, Franciszek Janowiak, David H. Duncan, Peter A. Vesk, Hugh P. Possingham & Johannes M. H. Knops
Biological invasions are a major human induced global change that is threatening global biodiversity by homogenizing the world’s fauna and flora. Species spread because humans have moved species across geographic boundaries and have changed ecological factors that structure ecosystems, such as nitrogen deposition, disturbance, etc. Many biological invasions are caused accidentally, as a byproduct of human travel and commerce driven product shipping. However, humans also have spread many species intentionally because of perceived benefits. Of...

Data from: Divergent lineages in a semi-arid mallee species, Eucalyptus behriana, correspond to a major geographic break in south-eastern Australia

Patrick Fahey, Rachael Fowler, Todd McLay, Frank Udovicic, David Cantrill & Michael Bayly
Aim: To infer relationships between populations of the semi-arid, mallee eucalypt, Eucalyptus behriana, to build hypotheses regarding evolution of major disjunctions in the species’ distribution and to expand understanding of the biogeographical history of south-eastern Australia. Location: South-eastern Australia Taxon: Eucalyptus behriana (Myrtaceae, Angiospermae) Methods: We developed a large dataset of anonymous genomic loci for 97 samples from 11 populations of E. behriana using double digest restriction site associated DNA sequencing (ddRAD-seq), to determine genetic...

Climate more important than soils for predicting forest biomass at the continental scale

Alison Bennett, Trent Penman, Stefan Arndt, Stephen Roxburgh & Lauren Bennett
Above-ground biomass in forests is critical to the global carbon cycle as it stores and sequesters carbon from the atmosphere. Climate change will disrupt the carbon cycle hence understanding how climate and other abiotic variables determine forest biomass at broad spatial scales is important for validating and constraining Earth System models and predicting the impacts of climate change on forest carbon stores. We examined the importance of climate and soil variables to explaining above-ground biomass...

Data from: Sibling rivalry vs mother’s curse: can kin competition facilitate a response to selection on male mitochondria?

Thomas Keaney, Heidi Wong, Damian Dowling, Theresa Jones & Luke Holman
Assuming that fathers never transmit mitochondrial DNA (mtDNA) to their offspring, mitochondrial mutations that affect male fitness are invisible to direct selection on males, leading to an accumulation of male-harming alleles in the mitochondrial genome (mother’s curse). However, male phenotypes encoded by mtDNA can still undergo adaptation via kin selection provided that males interact with females carrying related mtDNA, such as their sisters. Here, using experiments with Drosophila melanogaster carrying standardised nuclear DNA but distinct...

Data for: Convergent evolution of tail spines in squamate reptiles driven by microhabitat use

Till Ramm, Emily J. Roycroft & Johannes Müller
The repeated evolution of convergent or analogous traits is often used as evidence for adaptive evolution. Squamate reptiles show a high degree of convergence in a variety of morphological traits; however, the evolutionary mechanisms driving these patterns are not fully understood. Here we investigate the evolution of tail spines, a trait that evolved multiple times in evolutionarily independent clades of lizards. Taking a comparative phylogenetic approach, we use 2877 squamate species to demonstrate that the...

Mortality in patients with psychogenic non-epileptic seizures

Russell Nightscales, Lara McCartney, Clarissa Auvrez, Gerard Tao, Sarah Barnard, Charles Malpas, Piero Perucca, Anne McIntosh, Zhibin Chen, Shobi Sivathamboo, Sophia Ignatiadis, Simon. G Jones, Sophia Adams, Mark. J Cook, Patrick Kwan, Dennis Velakoulis, Wendyl D'Souza, Samuel. F Berkovic & Terence. J O'Brien
Objective To investigate the hypothesis that patients diagnosed with PNES on video-EEG monitoring (VEM) have increased mortality by comparison to the general population. Methods This retrospective cohort study included patients evaluated in VEM units of three tertiary hospitals in Melbourne, Australia, between January 1st, 1995 and December 31st, 2015. Diagnosis was based on consensus opinion of experienced epileptologists and neuropsychiatrists at each hospital. Mortality was determined in patients diagnosed with PNES, epilepsy or both conditions,...

Spontaneous quantity discrimination of artificial flowers by foraging honeybees

Scarlett Howard, Jürgen Schramme, Jair Garcia, Leslie Ng, Aurore Avarguès-Weber, Andrew Greentree & Adrian Dyer
Many animals need to process numerical information in order to survive. Spontaneous quantity discrimination is useful for assessing food resources, aggressive interactions, predator avoidance, and prey choice. Spontaneous quantity discrimination is a numerical ability allowing differentiation between two or more quantities without reinforcement nor prior training on any numerical task. Honeybees have previously demonstrated the ability to learn to count landmarks, match quantities, use numerical rules, discriminate between quantities, and perform arithmetic, but have not...

Data from: The multilocus multispecies coalescent: a flexible new model of gene family evolution

Qiuyi Li, Celine Scornavacca, Nicolas Galtier & Yao-Ban Chan
Incomplete lineage sorting (ILS), the interaction between coalescence and speciation, can generate incongruence between gene trees and species trees, as can gene duplication (D), transfer (T) and loss (L). These processes are usually modelled independently, but in reality, ILS can affect gene copy number polymorphism, i.e., interfere with DTL. This has been previously recognised, but not treated in a satisfactory way, mainly because DTL events are naturally modelled forward-in-time, while ILS is naturally modelled backwards-in-time...

Lunar rhythms in growth of larval fish

Jeffrey S. Shima, Craig W. Osenberg, Erik G. Noonburg, Suzanne H. Alonzo & Stephen E. Swearer
Growth and survival of larval fishes is highly variable and unpredictable. Our limited understanding of this variation constrains our ability to forecast population dynamics and effectively manage fisheries. Here we show that daily growth rates of a coral reef fish (the sixbar wrasse, Thalassoma hardwicke) are strongly lunar-periodic and predicted by the timing of nocturnal brightness: growth was maximized when the first half of the night was dark and the second half of the night...

Data from: Marine regime shifts impact synchrony of deep‐sea fish growth in the Northeast Atlantic

Susanne E. Tanner, Eva Giacomello, Gui M. Menezes, Alice Mirasole, João Neves, Vera Sequeira, Rita P. Vasconcelos, Ana Rita Vieira & John R. Morrongiello
The complexity and spatio–temporal scale of populations’ dynamics influence how populations respond to large-scale ecological pressures. Detecting and attributing synchrony (i.e. temporally coincident fluctuations in populations’ parameters) is key as synchronous populations can become more vulnerable to stochastic events that can affect the viability of harvest and have profound consequences to community structure. Here, we aimed to estimate the level of synchrony in fish growth within and among species across 1 million km2 and identify...

R code, spatial and tabular data to fully reproduce STEPS simulations of population change for common brushtail possum, grassland melomys and northern brown bandicoot in northern Australia

Casey Visintin & Hugh Davies
The development of effective fire management for biodiversity conservation is a global challenge. The highly dynamic nature of fire, the difficulty in replicating ‘real-world’ fire experiments, and the need to understand population changes at large spatiotemporal scales make computer simulations particularly useful for identifying optimal fire management regimes for biodiversity conservation. We aimed to develop a flexible modelling approach with which to investigate how the spatiotemporal application of fire (i.e. management scenarios) influences savanna biodiversity....

Influence of anthropogenic landscape modifications and infrastructure on the geological characteristics of liquefaction

Josh Borella, Mark Quigley, Moses Riley, Sarah Trutner, Harry Jol, Maxwell Borella, Sam Hampton & Darren Gravley
Many large cities worldwide are built on natural and engineered geological materials that are highly susceptible to liquefaction and associated ground failure in earthquakes. Constitutive equations describing relationships between sediment geotechnical characteristics, seismological parameters, and liquefaction susceptibility of natural and engineered sediments are well established. What is less understood is the role of anthropogenic landscape modifications (e.g., river channel modifications, sediment engineering and re-distribution) and infrastructure (e.g., buildings, buried infrastructure such as drainage systems) on...

Testing whether ensemble modelling is advantageous for maximising predictive performance of species distribution models

Tianxiao Hao, Jane Elith, José J. Lahoz‐Monfort & Gurutzeta Guillera‐Arroita
Predictive performance is important to many applications of species distribution models (SDMs). The SDM ‘ensemble’ approach, which combines predictions across different modelling methods, is believed to improve predictive performance, and is used in many recent SDM studies. Here, we aim to compare the predictive performance of ensemble species distribution models to that of individual models, using a large presence-absence dataset of eucalypt tree species. To test model performance, we divided our dataset into calibration and...

Data from: Divergent male and female mate preferences do not explain incipient speciation between lizard lineages

Claire McLean, Richard Bartle, Caroline Dong, Katrina Rankin & Devi Stuart-Fox
Diversification in sexual signals is often taken as evidence for the importance of sexual selection in speciation. However, in order for sexual selection to generate reproductive isolation between populations, both signals and mate preferences must diverge together. Furthermore, assortative mating may result from multiple behavioural mechanisms, including female mate preferences, male mate preferences and male-male competition; yet their relative contributions are rarely evaluated. Here, we explored the role of mate preferences and male competitive ability...

Traits data of naturalized and non-naturalized alien species of four Indonesian Botanic Gardens

Decky Junaedi, Jane Catford, Mark Burgman, Michael McCarthy, Gurutzeta Guillera-Arroita & Peter Vesk
The establishment of new botanic gardens in tropical regions highlights a need for weed risk assessment tools suitable for tropical ecosystems. The relevance of plant traits for invasion into tropical rainforests has not been well studied. Working in and around four botanic gardens in Indonesia where 590 alien species have been planted, we estimated the effect of four plant traits, plus time since species introduction, on: a) the naturalization probability and b) abundance (density) of...

Global biogeography and diversification of a group of brown seaweeds (Phaeophyceae) driven by clade-specific evolutionary processes

Christophe Vieira, Frederique Steen, Sofie D'hondt, Quinten Bafort, Cindy Fernandez-García, Brian Wysor, Lennert Tyberghein, Ana Tronholm, Lydiane Mattio, Claude Payri, Gary Saunders, Frederik Leliaert, Heroen Verbruggen & Olivier De Clerck
Aim: Historical processes that shaped current diversity patterns of seaweeds remain poorly understood. Using Dictyotales, a globally distributed order of brown seaweeds as a model, we test if historical biogeographical and diversification patterns are comparable across clades. Dictyotales contain some 22 genera, three of which, Dictyota, Lobophora and Padina, are exceptionally diverse. Specifically we test if the evolutionary processes in these clades that shaped their latitudinal diversity patterns are in line with the tropical conservatism,...

Migration trajectories of the diamondback moth Plutella xylostella in China inferred from population genomic variation

Ming‐Zhu Chen, Li‐Jun Cao, Bing‐Yan Li, Jin‐Cui Chen, Ya‐Jun Gong, Ary Anthony Hoffmann & Shu‐Jun Wei
BACKGROUND: The diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae), is a notorious pest of cruciferous plants. In temperate areas, annual populations of DBM originate from adult migrants. However, the source populations and migration trajectories of immigrants remain unclear. Here, we investigated migration trajectories of DBM in China with genome-wide single nucleotide polymorphisms (SNPs) genotyped using double-digest RAD (ddRAD) sequencing. We first analyzed patterns of spatial and temporal genetic structure among southern source and northern recipient...

Traits data of exotic species in four tropical botanic gardens and adjacent natural forests

Decky Junaedi, Gurutzeta Guillera-Arroita, Peter Vesk, Michael McCarthy, Mark Burgman & Jane Catford
The establishment of new botanic gardens in tropical regions highlights a need for weed risk assessment tools suitable for tropical ecosystems. The relevance of plant traits for invasion into tropical rainforests has not been well studied. Working in and around four botanic gardens in Indonesia where 600 exotic species have been planted, we estimated the effect of four plant traits and time since species were introduced on: a) naturalization probability of exotic species; b) the...

Data from: Severe childhood speech disorder: Gene discovery highlights transcriptional dysregulation

Michael Hildebrand, Victoria Jackson, Thomas Scerri, Olivia Van Reyk, Matthew Coleman, Ruth Braden, Samantha Turner, Kristin Rigbye, Amber Boys, Sarah Barton, Richard Webster, Michael Fahey, Kerryn Saunders, Bronwyn Parry-Fielder, Georgia Paxton, Michael Hayman, David Coman, Himanshu Goel, Anne Baxter, Alan Ma, Noni Davis, Sheena Reilly, Martin Delatycki, Frederique Liégeois, Alan Connelly … & Angela Morgan
Objective: Determining the genetic basis of speech disorders provides insight into the neurobiology of human communication. Despite intensive investigation over the past two decades, the etiology of most children with speech disorder remains unexplained. Here we searched for a genetic etiology in children with severe speech disorder, specifically childhood apraxia of speech (CAS). Methods: Precise phenotyping together with research genome or exome analysis were performed on children referred with a primary diagnosis of CAS, as...

Registration Year

  • 2020
    31

Resource Types

  • Dataset
    31

Affiliations

  • University of Melbourne
    31
  • Monash University
    6
  • University of Queensland
    2
  • University of Georgia
    2
  • King's College London
    2
  • Florey Institute of Neuroscience and Mental Health
    2
  • Indonesian Institute of Sciences
    2
  • Imperial College London
    2
  • Victoria University of Wellington
    1
  • Max Planck Institute for Psycholinguistics
    1