7 Works

Data from: City life alters the gut microbiome and stable isotope profiling of the eastern water dragon (Intellagama lesueurii)

Bethan Littleford-Colquhoun, Laura Weyrich & Celine Frere
Urbanisation is one of the most significant threats to biodiversity, due to the rapid and large-scale environmental alterations it imposes on the natural landscape. It is, therefore, imperative that we understand the consequences of, and mechanisms by which, species can respond to it. In recent years, research has shown that plasticity of the gut microbiome may be an important mechanism by which animals can adapt to environmental change, yet empirical evidence of this in wild...

Data from: High detectability with low impact: optimising large PIT tracking systems for cave-dwelling bats

Emmi Van Harten, Terry Reardon, Linda Lumsden, Noel Meyers, Thomas Prowse, John Weyland & Ruth Lawrence
Passive integrated transponder (PIT) tag technology permits the ‘resighting’ of animals tagged for ecological research without the need for physical re-trapping. While this is effective if animals pass within centimetres of tag readers, short-distance detection capabilities have prevented the use of this technology with many species. To address this problem, we optimised a large (15 m-long) flexible antenna system to provide a c. 8 m2 vertical detection plane for detecting animals in flight. We installed...

Data from: Asymmetrical habitat coupling of an aquatic predator – the importance of individual specialisation

Maria H.K. Marklund, Richard Svanback, Leanne Faulks, Martin F. Breed, Kristin Scharnweber, Yinghua Zha & Peter Eklöv
Predators should stabilise food webs because they can move between spatially separate habitats. However, predators adapted to forage on local resources may have a reduced ability to couple habitats. Here we show clear asymmetry in the ability to couple habitats by Eurasian perch – a common polymorphic predator in European lakes. We sampled perch from two spatially separate habitats – pelagic and littoral zones – in Lake Erken, Sweden. Littoral perch showed stronger individual specialisation,...

The evolution of broadly polylectic behaviour in Lasioglossum (Chilalictus) (Halictidae, Apoidea)

Trace Akankunda, Carlos Rodriguez Lopez, Remko Leijs & Ken Walker
Based on the number of pollen hosts utilised, bees have been categorised as generalists (polylectic) or specialists (oligolectic). Faced with a changing habitat, polylectic bees can diversify their pollen ‘portfolio’, while oligolectic bees cannot and therefore may go locally extinct. Research into the evolution and maintenance of broad polylecty is scant. Instead, research has mainly focussed on the factors that constrain oligolectic species to a narrow diet. Here, we developed a molecular phylogeny of a...

Data from: Leaf shape tracks transitions across forest-grassland boundaries in the grass family (Poaceae)

Timothy Jay Gallaher, Dean C. Adams, Lakshmi Attigala, Sean V. Burke, Joseph M. Craine, Melvin R. Duvall, Phillip C. Klahs, Emma Sherratt, William P. Wysocki & Lynn G. Clark
Grass leaf shape is a strong indicator of their habitat. Linear leaves predominate in open areas and more ovate leaves distinguish forest-associated grasses. This pattern among extant species suggests that ancestral shifts between forest and open habitats may have coincided with changes in leaf shape or size. We tested relationships between habitat, climate, photosynthetic pathway and leaf shape and size in a phylogenetic framework to evaluate drivers of leaf shape and size variation over the...

Data from: GHOST: Recovering Historical Signal from Heterotachously-evolved Sequence Alignments

Stephen M. Crotty, Bui Quang Minh, Nigel G. Bean, Barbara R. Holland, Jonathan Tuke, Lars S. Jermiin & Arndt Von Haeseler
Molecular sequence data that have evolved under the influence of heterotachous evolutionary processes are known to mislead phylogenetic inference. We introduce the General Heterogeneous evolution On a Single Topology (GHOST) model of sequence evolution, implemented under a maximum-likelihood framework in the phylogenetic program IQ-TREE (http://www.iqtree.org). Simulations show that using the GHOST model, IQ-TREE can accurately recover the tree topology, branch lengths, and substitution model parameters from heterotachously evolved sequences. We investigate the performance of the...

Data from: Ocean warming increases availability of crustacean prey via riskier behaviour

Ivan Nagelkerken, Emma Marangon & Silvan Goldenberg
Marine prey and predators will respond to future climate through physiological and behavioural adjustments. However, our understanding of how such direct effects may shift the outcome of predator-prey interactions is still limited. Here, we investigate the effects of ocean warming and acidification on foraging behaviour and biomass of a common prey (shrimps, Palaemon spp.) tested in large mesocosms harbouring natural resources and habitats. Acidification did not alter foraging behaviour in prey. Under warming, however, prey...

Registration Year

  • 2019
    7

Resource Types

  • Dataset
    7

Affiliations

  • University of Adelaide
    7
  • South Australian Museum
    2
  • University of Washington
    1
  • Northern Illinois University
    1
  • University of the Sunshine Coast
    1
  • Australian National University
    1
  • University of Tasmania
    1
  • University of South Australia
    1
  • La Trobe University
    1
  • University of Chicago
    1