12 Works

Leukocyte proportions in Pteropus alecto blood smears

Dale Hansen, Brooklin Hunt, Caylee Falvo, Manuel Ruiz-Aravena, Maureen Kessler, Jane Hall, Paul Thompson, Karrie Rose, Devin Jones, Tamika Lunn, Adrienne Dale, Alison Peel & Raina Plowright
The black flying fox (Pteropus alecto) is a natural reservoir for Hendra virus, a paramyxovirus that causes fatal infections in humans and horses in Australia. Increased excretion of Hendra virus by flying foxes has been hypothesized to be associated with physiological or energetic stress in the reservoir hosts. The objective of this study was to explore the leukocyte profiles of wild-caught P. alecto, with a focus on describing the morphology of each cell type to...

Interactions among multiple stressors vary with exposure duration and biological response

Olivia King, Jason Van De Merwe, Max Campbell, Rachael Smith, Michael Warne & Chris Brown
Coastal ecosystems are exposed to multiple anthropogenic stressors. Effective management actions would be better informed from generalised predictions of the individual, combined and interactive effects of multiple stressors; however, few generalities are shared across different meta-analyses. Using an experimental study, we present an approach for analysing regression-based designs with generalised additive models (GAMs) that allowed us to capture non-linear effects of exposure duration and stressor intensity, and access interactions among stressors. We tested the approach...

Global analysis of environmental and socioeconomic factors associated with human burden of environmentally mediated pathogens

Susanne Sokolow, Isabel Jones, Chelsea Wood, Kevin Lafferty, Andres Garchitorena, Skylar Hopkins, Andrea Lund, Andrew MacDonald, Nicole Nova, Chris LeBoa, Alison Peel, Erin Mordecai, Meghan Howard, Julia Buck, David Lopez-Carr, Michele Barry, Matthew Bonds & Giulio De Leo
This repository contains four datasets that support repeatability of the analyses in the Sokolow et al. paper published in Lancet Planetary Health. Descriptions of the four datasets are included in the metadata document. This study found that 80% of pathogen species known to infect humans are environmentally mediated, causing about 40% of contemporary infectious-disease burden (global loss of 130 million years of healthy life annually). More than 91% of this environmentally-mediated disease burden occurs in...

Data for: Substantial intraspecific trait variation across a hydrological gradient in northern Australian fishes

Osmar Luiz, Julian Olden, Mark Kennard, David Crook, Michael Douglas, Thor Saunders, Dion Wedd, Brendan Adair & Alison King
Trait-based models of ecological communities and ecosystem functioning often fail to account for intraspecific variation in functional traits, assuming that intraspecific variability is negligible compared to interspecific variability. However, this assumption remains poorly tested across vertebrate animals where past studies routinely describe species according to mean trait values without explicit consideration of individual trait variability. We assessed nine functional traits for 4,254 individuals belonging to 15 freshwater fish species from 11 families in Northern Australia,...

Prioritising threatened species and threatening processes across northern Australia: dataset

Anna Pintor, Mark Kennard, Jorge Álvarez-Romero, Stephanie Hernandez & Jeremy VanDerWal
Northern Australia’s unique and rich biodiversity faces numerous threatening processes. Currently, there is limited knowledge of i) the distribution of species of conservation concern across northern Australia, ii) their level of exposure to various threats and iii) their vulnerability as a result of exposure and differential sensitivity to threats. These knowledge gaps severely limit the efficiency and adequacy of conservation actions and simultaneously create uncertainty for sustainable development in the North. This project aimed to...

Ecological conditions predict the intensity of Hendra virus excretion over space and time from bat reservoir hosts

Daniel Becker, Peggy Eby, Wyatt Madden, Alison Peel & Raina Plowright
The ecological conditions experienced by wildlife reservoirs affect infection dynamics and thus the distribution of pathogen excreted into the environment, which have been hypothesized to shape risks of zoonotic spillover. However, few systems have data on both long-term ecological conditions and pathogen excretion to advance mechanistic understanding and test environmental drivers of spillover risk. We here analyze three years of Hendra virus data from nine Australian flying fox roosts with covariates derived from long-term studies...

Dietary shifts may underpin the recovery of a large carnivore population

Mariana Campbell, Vinay Udyawer, Timothy Jardine, Yusuke Fukuda, R. Keller Kopf, Stuart Bunn & Hamish Campbell
Supporting the recovery of large carnivores is a popular yet challenging endeavour. Estuarine crocodiles in Australia are a large carnivore conservation success story, with the population having extensively recovered from past heavy exploitation. Here, we explored if dietary changes had accompanied this large population recovery by comparing the isotopes δ13C and δ15N in bones of crocodiles sampled 40 to 55 years ago (small population) with bones from contemporary individuals (large population). We found that δ13C...

Data from: Cranial remains of Ramsayia magna from the Late Pleistocene of Australia and the evolution of gigantism in wombats (Vombatidae; Marsupialia)

Julien Louys, Mathieu Duval, Robin M.D. Beck, Eleanor Pease, Ian Sobbe, Noel Sands & Gilbert J. Price
Giant wombats (defined here as body mass ≥ 70 kg) are found in the genera Phascolonus, Ramsayia, and perhaps also Sedophascolomys. Of these, Ramsayia is the currently the most poorly known, having been described from fragmentary mandibular and cranial fragments. Here, we report the most complete cranial remains attributable to the genus, identified as the species R. magna. The remains provide new important insights into the anatomy of the species and the evolutionary adaptations to...

Impact of water resources development on connectivity and primary productivity across a tropical river floodplain

Bianca Molinari, Ben Stewart-Koster, Tim J. Malthus & Stuart E. Bunn
1. Floodplain wetlands provide an important subsidy for riverine food webs as sites of high algal production. However, this subsidy depends on the degree of landscape connectivity during flood pulses, which provides the opportunity for movement of higher order consumers between rivers and floodplains to access these productive habitats. Changes in floodplain inundation extent and duration, due to variable wet season flows or water resources development (WRD), can impact landscape connectivity and ultimately the magnitude...

Song complexity is maintained during inter-population cultural transmission of humpback whale songs

Jennifer Allen, Ellen Garland, Claire Garrigue, Rebecca Dunlop & Michael Noad
Among animal species, the songs of male humpback whales (Megaptera novaeangliae) are a rare example of social learning between entire populations. Understanding fine-scale similarity in song patterns and structural features will better clarify how accurately songs are learned during inter-population transmission. Here, six distinct song types (2009–2015) transmitted from the east Australian to New Caledonian populations were quantitatively analysed using fine-scale song features. Results found that New Caledonian whales learned each song type with high...

The overlooked complexity of avian brood parasite–host relationships

James A. Kennerley, Marius Somveille, Mark E. Hauber, Nicole M. Richardson, Andrea Manica & William E. Feeney
The interactions between avian brood parasites and their hosts have become widely recognised as model systems for studying coevolutionary processes. These systems have traditionally been viewed as relationships between one species of brood parasite and one species of host; however, with most brood parasites being known to parasitise multiple species of host and hosts often being subject to parasitism by multiple brood parasite species, opportunities to examine the ecology and evolution of multispecies interactions have...

Recovered frog populations coexist with endemic Batrachochytrium dendrobatidis despite load-dependent mortality

Matthijs Hollanders, Laura F. Grogan, Catherine J. Nock, Hamish I. McCallum & David A. Newell
Novel infectious diseases, particularly those caused by fungal pathogens, pose considerable risks to global biodiversity. The amphibian chytrid fungus (Batrachochytrium dendrobatidis, Bd) has demonstrated the scale of the threat, having caused the greatest recorded loss of vertebrate biodiversity attributable to a pathogen. Despite catastrophic declines on several continents, many affected species have experienced population recoveries after epidemics. However, the potential ongoing threat of endemic Bd in these recovered or recovering populations is still poorly understood....

Registration Year

  • 2022
    12

Resource Types

  • Dataset
    12

Affiliations

  • Griffith University
    12
  • University of Queensland
    3
  • University of Washington
    2
  • Montana State University
    2
  • Charles Darwin University
    2
  • Southern Cross University
    1
  • Institut de Recherche pour le Développement
    1
  • Stanford University
    1
  • University of Saskatchewan
    1
  • University of Cambridge
    1