20 Works

Data from: Testing the assumptions of the pyrodiversity begets biodiversity hypothesis for termites in semi-arid Australia

Hayley Davis, Euan G. Ritchie, Sarah Avitabile, Tim Doherty & Dale G. Nimmo
Fire shapes the composition and functioning of ecosystems globally. In many regions, fire is actively managed to create diverse patch mosaics of fire-ages under the assumption that a diversity of post-fire age classes will provide a greater variety of habitats, thereby enabling species with differing habitat requirements to coexist, and enhancing species diversity (the pyrodiversity begets biodiversity hypothesis). However, studies provide mixed support for this hypothesis. Here, using termite communities in a semi-arid region of...

Data from: The influence of environmental gradients on individual behaviour: individual plasticity is consistent across risk and temperature gradients

Tomas O. Cornwell, Ian D. McCarthy, C. Richard A. Snyder & Peter A. Biro
1. The expression of individual behaviour as a function of environmental variation (behavioural plasticity) is recognised as a means for animals to modify their phenotypes in response to changing conditions. Plasticity has been studied extensively in recent years, leading to an accumulation of evidence for behavioural plasticity within natural populations. 2. Despite the recent attention given to studying individual variation in behavioural plasticity, there is still a lack of consensus regarding its causes and constraints....

Data from: Morphology and geography predict the use of heat conservation behaviours across birds

Gabrielle Pavlovic, Michael A. Weston & Matthew R. E. Symonds
1. Heat conservation behaviours in birds in part involve postural adjustments to regulate the area of exposed body surfaces. However, the occurrence of these behaviours across birds, and the factors that explain their use across bird species, remain poorly known. 2. We examined the occurrence of three distinctive bird behaviours - back rest (where the bill is tucked into the plumage), standing on one leg, and sitting - across 852 bird species using a Bayesian...

Data from: Rare long-distance dispersal of a marine angiosperm across the Pacific Ocean

Timothy M. Smith, Paul H. York, Bernardo R. Broitman, Martin Thiel, Graeme C. Hays, Erik Van Sebille, Nathan F. Putman, Peter I. Macreadie & Craig D. H. Sherman
Aim: Long-distance dispersal (LDD) events occur rarely but play a fundamental role in shaping species biogeography. Lying at the heart of island biogeography theory, LDD relies on unusual events to facilitate colonisation of new habitats and range expansion. Despite the importance of LDD, it is inherently difficult to quantify due to the rarity of such events. We estimate the probability of LDD of the seagrass Heterozostera nigricaulis, a common Australian species, across the Pacific Ocean...

Data from: Incorporating disturbance into trophic ecology: fire history shapes mesopredator suppression by an apex predator

William L. Geary, Euan G. Ritchie, Jessica A. Lawton, Thomas R. Healey & Dale G. Nimmo
1.Apex predators can suppress smaller bodied ‘mesopredators’. In doing so, they can provide refuge to species preyed upon by mesopredators, which is particularly important in regions where mesopredators are invasive. While most studies of mesopredator suppression focus on the response of mesopredators to human control of apex predators, other factors –including natural and anthropogenic disturbance – also drive the occurrence of apex predators and, in doing so, might shape spatial patterns of mesopredator suppression. 2.We...

Data from: Environmental heterogeneity amplifies behavioural response to a temporal cycle

Alice M. Trevail, Jonathan A. Green, Jonathan Sharples, Jeff A. Polton, John P.Y. Arnould, Samantha C. Patrick & Jonathan P. Y. Arnould
Resource acquisition is integral to maximise fitness, however in many ecosystems this requires adaptation to resource abundance and distributions that seldom stay constant. For predators, prey availability can vary at fine spatial and temporal scales as a result of changes in the physical environment, and therefore selection should favour individuals that can adapt their foraging behaviour accordingly. The tidal cycle is a short, yet predictable, temporal cycle, which can influence prey availability at temporal scales...

Data from: Optimal soil carbon sampling designs to achieve cost-effectiveness: a case study in blue carbon ecosystems

Mary A. Young, Peter I. Macreadie, Clare Duncan, Paul E. Carnell, Emily Nicholson, Oscar Serrano, Carlos M. Duarte, Glenn Shiell, Jeff Baldock & Daniel Ierodiaconou
Researchers are increasingly studying carbon (C) storage by natural ecosystems for climate mitigation, including coastal ‘blue carbon’ ecosystems. Unfortunately, little guidance on how to achieve robust, cost-effective estimates of blue C stocks to inform inventories exists. We use existing data (492 cores) to develop recommendations on the sampling effort required to achieve robust estimates of blue C. Using a broad-scale, spatially explicit dataset from Victoria, Australia, we applied multiple spatial methods to provide guidelines for...

Data from: Exploring mechanisms and origins of reduced dispersal in island Komodo dragons

Tim S. Jessop, Achmad Arieifandy, Deni Purwandana, Claudio Ciofi, Jeri Imansyah, Yunias Jackson Benu, Damien A. Fordham, David M. Forsyth, Raoul A. Mulder, Benjamin L. Phillips & Achmad Ariefiandy
Loss of dispersal typifies island biotas, but the selective processes driving this phenomenon remain contentious. This is because selection via, both indirect (e.g. relaxed selection or island syndromes) and direct (e.g. natural selection or spatial sorting) processes may be involved, and no study has yet convincingly distinguished between these alternatives. Here we combined observational and experimental analyses of an island lizard, the Komodo dragon (Varanus komodoensis, the world’s largest lizard), to provide evidence for the...

Data from: Change in male colouration associated with artificial selection on foraging colour preference

Gemma L. Cole & John A. Endler
Sensory drive proposes that natural selection on non‐mating behaviours (e.g. foraging preferences) alters sensory system properties and results in a correlated effect on mating preferences and subsequently sexual traits. In colour‐based systems, we can test this by selecting on non‐mating colour preferences and testing for responses in colour‐based female preferences and male sexual colouration. In guppies (Poecilia reticulata), individual functional links of sensory drive have been demonstrated providing an opportunity to test the process over...

Data from: Boundary strength analysis: combining colour pattern geometry and coloured patch visual properties for use in predicting behaviour and fitness

John A. Endler, Gemma L. Cole & Alexandrea M. Kranz
1.Colour patterns are used by many species to make decisions that ultimately affect their Darwinian fitness. Colour patterns consist of a mosaic of patches that differ in geometry and visual properties. Although traditionally pattern geometry and colour patch visual properties are analysed separately, these components are likely to work together as a functional unit. Despite this, the combined effect of patch visual properties, patch geometry, and the effects of the patch boundaries on animal visual...

Data from: An Ishihara-style test of animal colour vision

Karen L. Cheney, Naomi.F. Green, Alexander P. Vibert, Misha Vorobyev, Justin Marshall, Daniel C. Osorio & John A. Endler
Colour vision mediates ecologically relevant tasks for many animals, such as mate choice, foraging and predator avoidance. However, our understanding of animal colour perception is largely derived from human psychophysics, even though animal visual systems differ from our own. Behavioural tests of non-human animals are required to understand how colour signals are perceived by them. Here we introduce a novel test of colour vision in animals inspired by the Ishihara colour charts, which are widely...

Data from: Web building and silk properties functionally covary among species of wolf spider

Mariángeles Lacava, Arley Camargo, Luiz F. Garcia, Martin Santana, Jian Fang, Xungai Wang & Sean J. Blamires
While phylogenetic studies have shown covariation between the properties of spider major ampullate (MA) silk and web building, both spider webs and silks are highly plastic so we cannot be sure whether these traits functionally co-vary or just vary across environments that the spiders occupy. Since MaSp2-like proteins provide MA silk with greater extensibility, their presence is considered necessary for spider webs to effectively capture prey. Wolf spiders (Lycosidae) are predominantly non-web building, but a...

Data from: Plover parents care more for young of the opposite sex

Daniel Lees, Craig D.H. Sherman, Kristal Kostoglou, Laura X.L. Tan, Grainne S. Maguire, Peter Dann, Michael A. Weston, Craig D H Sherman & Laura X L Tan
Within some socially monogamous species, the relative contribution of care provided by each parent varies substantially, from uniparental to equitable biparental care. The provision of care is influenced by its costs and benefits, which may differ between parents (leading to inter-parental “conflict”) and are expected to change in relation to the needs of young (which vary with age) and potentially to traits such as their sex. If the fitness benefits to parents differ with the...

Data from: Predation risk for reptiles is highest at remnant edges in agricultural landscapes

Nicole A. Hansen, Chloe F. Sato, Damian R. Michael, David B. Lindenmayer & Don A. Driscoll
Preventing biodiversity loss in fragmented agricultural landscapes is a global problem. The persistence of biodiversity within remnant vegetation can be influenced by an animal's ability to move through the farmland matrix between habitat patches. Yet, many of the mechanisms driving species occurrence within these landscapes are poorly understood, particularly for reptiles. We used scented and unscented plasticine lizard models and wildlife cameras to (a) estimate predation risk of reptiles in four farmland types (crop field,...

Data from: Blue Carbon stocks of Great Barrier Reef deep-water seagrasses

Paul York, Peter I. Macreadie & Michael A. Rasheed
Shallow-water seagrasses capture and store globally-significant quantities of organic carbon (OC), often referred to as ‘Blue Carbon’; however, data is lacking on the importance of deep-water (>15 m) seagrasses as Blue Carbon sinks. We compared OC stocks from deep-, mid- and shallow-water seagrasses at Lizard Island within the Great Barrier Reef Lagoon. We found deep-water seagrasses (Halophila species) contained similar levels of OC as shallow-water species (e.g Halodule uninervis) (0.64 ± 0.08% and 0.9 ±...

Data from: Eradicating abundant invasive prey could cause unexpected and varied biodiversity outcomes: the importance of multi-species interactions

Miguel Lurgi, Euan G. Ritchie & Damien A. Fordham
1. Abundant and widely-distributed invasive prey can negatively affect co-occurring native species by competing for food and/or shelter, removing vegetation cover and reducing habitat complexity (changing predation risk), and by sustaining elevated abundances of invasive mesopredators. However, information regarding the community and trophic consequences of controlling invasive prey, and their temporal dynamics, remain poorly understood. 2. We used multi-species ecological network models to simulate the consequences of changing European rabbit Oryctolagus cuniculus abundance in an...

Data from: Plumage coloration follows Gloger’s rule in a ring species

Raoul F. H. Ribot, Mathew L. Berg, Emanuel Schubert, John A. Endler & Andrew T. D. Bennett
Aim: Animal coloration is expected to differ between populations in different habitats according to Gloger’s rule, with darker animals found in more humid, vegetated or warmer environments. Yet despite considerable support across the globe, the mechanisms behind this biogeographical rule are currently still unclear. Exploiting a ring species with plumage coloration from crimson to pale yellow, we test Gloger’s rule and the mechanisms behind phenotypic divergence. Location: South-eastern Australia. Major taxa studied: Crimson rosellas (Platycercus...

Data from: Assessing reliance on vector navigation in the long-distance oceanic migrations of green sea turtles

Giulia Cerritelli, Giuseppe Bianco, Giacomo Santini, Annette C. Broderick, Brendan J. Godley, Graeme C. Hays, Paolo Luschi & Susanne Åkesson
Vector navigation, i.e. maintaining a constant heading for a given amount of time, is hypothesized to provide a viable basis for the navigational feats of a number of long-distance animal migrants. Since animals following this strategy are subject to drift by wind or by ocean current, performing long migrations relying on vector navigation is particularly challenging. We tested whether vector navigation could be involved in the migrations of green turtles (Chelonia mydas) that migrate between...

Data from: Compact cities or sprawling suburbs? optimising the distribution of people in cities to maximise species diversity

Andrew Geschke, Simon James, Andrew F. Bennett & Dale G. Nimmo
1. Conservation of biodiversity in urban environments depends on the responses of species to the intensity of urban development. ‘Land sharing’ and ‘land sparing’ represent alternate ends of a gradient that conceptualises a trade-off between the human population and biodiversity. We used a linear optimisation procedure to 1) identify the optimal allocation of land for people and nature, 2) assess whether the optimal allocation is more similar to land sparing or land sharing, and 3)...

Data from: Light environment change induces differential expression of guppy opsins in a multi-generational evolution experiment

Alexandrea Megan Kranz, Leonard G. Forgan, Gemma Louise Cole & John A. Endler
Light environments critically impact species that rely on vision to survive and reproduce. Animal visual systems must accommodate changes in light that occur from minutes to years, yet we do not know how they respond to divergent spectral changes over longer time scales. Here we used a laboratory experiment where replicate guppy populations were kept different light environments for up to 8-12 generations to explore possible differences in the expression levels of nine guppy opsin...

Registration Year

  • 2018
    20

Resource Types

  • Dataset
    20

Affiliations

  • Deakin University
    20
  • Charles Sturt University
    3
  • University of Adelaide
    2
  • UNSW Sydney
    2
  • James Cook University
    2
  • University of Florence
    2
  • Bangor University
    1
  • University of Sussex
    1
  • University of Newcastle Australia
    1
  • University of Queensland
    1