53 Works

Data from: Species co-occurrence networks show reptile community reorganization under agricultural transformation

Geoffrey M. Kay, Ayesha Tulloch, Philip S. Barton, Saul A. Cunningham, Don A. Driscoll & David B. Lindenmayer
Agricultural transformation represents one of the greatest threats to biodiversity, causing degradation and loss of habitat, leading to changes in the richness and composition of communities. These changes in richness and composition may, in turn, lead to altered species co-occurrence, but our knowledge of this remains limited. We used a novel co-occurrence network approach to examine the impact of agricultural transformation on reptile community structure within two large (> 172 000 km2; 224 sites) agricultural...

Data from: Decision making for mitigating wildlife diseases: from theory to practice for an emerging fungal pathogen of amphibians

Stefano Canessa, Claudio Bozzuto, Evan H. Campbell Grant, Sam S. Cruickshank, Matthew C. Fisher, Jacob C. Koella, Stefan Lötters, An Martel, Frank Pasmans, Benjamin C. Scheele, Annemarieke Spitzen-Van Der Sluijs, Sebastian Steinfartz, Benedikt R. Schmidt & Ben C. Scheele
1.Conservation science can be most effective in its decision-support role when seeking answers to clearly formulated questions of direct management relevance. Emerging wildlife diseases, a driver of global biodiversity loss, illustrate the challenges of performing this role: in spite of considerable research, successful disease mitigation is uncommon. Decision analysis is increasingly advocated to guide mitigation planning, but its application remains rare. 2.Using an integral projection model, we explored potential mitigation actions for avoiding population declines...

Data from: What controls variation in carbon use efficiency among Amazonian tropical forests?

Christopher E. Doughty, Gregory R. Goldsmith, Nicolas Raab, Cecile A. J. Girardin, Filio Farfan-Amezquita, Walter Huaraca Huasco, Javier E. Silva-Espejo, Alejandro Araujo-Murakami, Antonio C. L. Da Costa, Wanderley Rocha, David Galbraith, Patrick Meir, Dan B. Metcalfe, Yadvinder Malhi & Walter Huaraca-Huasco
Why do some forests produce biomass more efficiently than others? Variations in Carbon Use Efficiency (CUE: total Net Primary Production (NPP)/ Gross Primary Production (GPP)) may be due to changes in wood residence time (Biomass/NPPwood), temperature, or soil nutrient status. We tested these hypotheses in 14, one ha plots across Amazonian and Andean forests where we measured most key components of net primary production (NPP: wood, fine roots, and leaves) and autotrophic respiration (Ra; wood,...

Data from: How disturbance and dispersal influence intraspecific structure

Ceridwen I. Fraser, Ian D. Davies, David Bryant & Jonathan M. Waters
1. Recent studies have suggested that spatial patterns of intraspecific diversity can be influenced by density-dependent processes, which can inhibit effective migration of new lineages to established populations. How mechanisms such as dispersal and disturbance influence these processes is, however, still poorly understood. 2. We hypothesised that i) species with leptokurtic dispersal (frequent on small scales but rare on larger scales) would show no spatial structure on small scales and strong structure on large scales,...

Data from: Divergence of thermal physiological traits in terrestrial breeding frogs along a tropical elevational gradient

Rudolf Von May, Alessandro Catenazzi, Ammon Corl, Roy Santa-Cruz, Ana Carolina Carnaval & Craig Moritz
Critical thermal limits are thought to be correlated with the elevational distribution of species living in tropical montane regions, but with upper limits being relatively invariant compared to lower limits. To test this hypothesis, we examined the variation of thermal physiological traits in a group of terrestrial breeding frogs (Craugastoridae) distributed along a tropical elevational gradient. We measured the critical thermal maximum (CTmax; n = 22 species) and critical thermal minimum (CTmin; n = 14...

Data from: Sexual selection on male body size, genital length and heterozygosity: consistency across habitats and social settings

Megan L. Head, Andrew T. Kahn, Jonathan M. Henshaw, J. Scott Keogh & Michael D. Jennions
1. Spatial and temporal variation in environmental factors and the social setting can help to maintain genetic variation in sexually selected traits if it affects the strength of directional selection. A key social parameter which affects the intensity of, and sometimes predicts the response to, mating competition is the operational sex ratio (OSR; ratio of receptive males to females). 2. How the OSR affects selection for specific male traits is poorly understood. It is also...

Data from: Plant community composition and species richness in the High Arctic tundra: from the present to the future

Jacob Nabe-Nielsen, Signe Normand, Francis K. C. Hui, Lærke Stewart, Christian Bay, Louise I. Nabe-Nielsen, Niels Martin Schmidt & Laerke Stewart
Arctic plant communities are altered by climate changes. The magnitude of these alterations depends on whether species distributions are determined by macroclimatic conditions, by factors related to local topography, or by biotic interactions. Our current understanding of the relative importance of these conditions is limited due to the scarcity of studies, especially in the High Arctic. We investigated variations in vascular plant community composition and species richness based on 288 plots distributed on three sites...

Data from: Tropical specialist versus climate generalist: diversification and demographic history of sister species of Carlia skinks from northwestern Australia

Ana Catarina Afonso Silva, Jason G. Bragg, Sally Potter, Carlos Fernandes, Maria Manuela Coelho & Craig Moritz
Species endemic to the tropical regions are expected to be vulnerable to future climate change due in part to their relatively narrow climatic niches. In addition, these species are more likely to have responded strongly to past climatic change, and this can be explored through phylogeographic analyses. To test the hypothesis that tropical specialists are more sensitive to climate change than climate generalists, we generated and analyze sequence data from mtDNA and ~2500 exons to...

Data from: Measuring CO2 and HCO3- permeabilities of isolated chloroplasts using a MIMS-18O approach

Dimitri Tolleter, Vincent Chochois, Richard Poiré, G. Dean Price & Murray R. Badger
To support photosynthetic CO2 fixation by Rubisco, the chloroplast must be fed with inorganic carbon in the form of CO2 or bicarbonate. However, the mechanisms allowing the rapid passage of this gas and this charged molecule through the bounding membranes of the chloroplast envelope are not yet completely elucidated. We describe here a method allowing us to measure the permeability of these two molecules through the chloroplast envelope using a membrane inlet mass spectrometer and...

Data from: Why does inbreeding reduce male paternity? Effects on sexually selected traits

Jason N. Marsh, Regina Vega-Trejo, Michael Dawson Jennions & Megan L. Head
Why does inbreeding reduce paternity? Effects on sexually selected traitsThis is the data associated with the manuscript "Why does inbreeding reduce paternity? Effects on sexually selected traits". The data file contains 5 worksheets. The first "association data" contains data from experiment 1 of the associated paper looking at female association time with inbred and outbred males. The second third and fourth contain data associated with the second experiment of the associated paper looking at the...

Data from: Blood transcriptomes and de novo identification of candidate loci for mating success in lekking great snipe (Gallinago media)

Jacob Höglund, Biao Wang, Stein Are Saether, Mozes Pil Kyu Blom, Peder Fiske, Peter Halvarsson, Gavin J. Horsburgh, Terry Burke, John Atle Kålås & Robert Ekblom
We assembled the great snipe blood transcriptome using data from fourteen lekking males, in order to de novo identify candidate genes related to sexual selection, and determined the expression profiles in relation to mating success. The three most highly transcribed genes were encoding different haemoglobin subunits. All tended to be overexpressed in males with high mating success. We also called Single Nucleotide Polymorphisms (SNPs) from the transcriptome data and found considerable genetic variation for many...

Data from: The importance of scattered trees for biodiversity conservation: a global meta-analysis

Jayme A. Prevedello, Mauricio Almeida-Gomes & David B. Lindenmayer
1. Scattered trees are thought to be keystone structures for biodiversity in landscapes worldwide. However, such trees have been largely neglected by researchers and their importance for biodiversity remains unclear. 2. We completed a global meta-analysis to quantify relationships between scattered trees and the species richness, abundance and composition of vertebrates, arthropods and plants. First, we tested whether areas near scattered trees support higher levels of species richness and abundance than nearby open areas. Second,...

Data from: Broad-scale variation in sexual dichromatism in songbirds is not explained by sex differences in exposure to predators during incubation

Beata Matysiokova, Vladimir Remes & Andrew Cockburn
The evolution of sexual dichromatism provoked one of the greatest disagreements between Charles Darwin and Alfred Russel Wallace. According to Darwin the main driving force is sexual selection, whereby choosy females prefer showy males, leading to the evolution of conspicuous male plumage. On the other hand, Wallace suggested that dichromatism may arise because nest predation favors more cryptic females. To test the role of natural selection in the evolution of dichromatism we combined quantitative data...

Data from: Pleistocene climatic changes drive diversification across a tropical savanna

Sally Potter, Alexander T. Xue, Jason G. Bragg, Dan F. Rosauer, Emily J. Roycroft & Craig Moritz
Spatial responses of species to past climate change depend on both intrinsic traits (climatic niche breadth, dispersal rates) and the scale of climatic fluctuations across the landscape. New capabilities in generating and analysing population genomic data, along with spatial modelling, have unleashed our capacity to infer how past climate changes have shaped populations, and by extension, complex communities. Combining these approaches, we uncover lineage diversity across four co-distributed lizards from the Australian Monsoonal Tropics and...

Data from: Phylogenetic evidence for mid-Cenozoic turnover of a diverse continental biota

Paul M. Oliver & Andrew F. Hugall
Rapid climatic change at the beginning of the Oligocene epoch is concordant with global biotic turnover in the fossil record. However, while Southern Hemisphere geological movement played a key role in shaping these global climatic shifts, given generally poor terrestrial fossil records, evidence for matching turnover in entire Austral biotas is lacking. Emerging comprehensive phylogenetic frameworks provide alternative avenues to explore for signals of mass turnover or restructuring. Here, we combine phylogenetic data with empirical...

Data from: New findings in a 400 million-year-old Devonian placoderm shed light on jaw structure and function in basal gnathostomes

Yuzhi Hu, Jing Lu & Gavin C. Young
Arthodire placoderms have been proposed as the sister group of Chinese ‘maxillate’ placoderms plus all the more crownward gnathostomes. These basal groups provide key information for understanding the early evolution of jaws. Here, we test previous assumptions about placoderm jaw structure and function by using high-resolution computed tomography, digital dissection, and enlarged 3D printouts on a unique articulated 400 million-year-old buchanosteid arthrodire. The upper jaw has a double ethmoid and a palatobasal connection, but no...

Data from: Cryptic lineage diversity, body size divergence and sympatry in a species complex of Australian lizards (Gehyra)

Craig C. Moritz, Renae C. Pratt, Sarah Bank, Gayleen Bourke, Jason G. Bragg, Paul Doughty, J. Scott Keogh, Rebecca J. Laver, Sally Potter, Luisa C. Teasdale, Leonardo G. Tedeschi & Paul M. Oliver
Understanding the joint evolutionary and ecological underpinnings of sympatry among close relatives remains a key challenge in biology. This problem can be addressed through joint phylogenomic and phenotypic analysis of complexes of closely related lineages within, and across, species and hence representing the speciation continuum. For a complex of tropical geckos from northern Australia – Gehyra nana and close relatives – we combine mtDNA phylogeography, exon-capture sequencing and morphological data to resolve independently evolving lineages...

Data from: Generalist predator's niche shifts reveal ecosystem changes in an experimentally fragmented landscape

Julian Resasco, Kika T. Tuff, Saul A. Cunningham, Brett A. Melbourne, Andrew L. Hicks, Seth D. Newsome & Kendi F. Davies
Habitat fragmentation can alter the trophic structure of communities and environmental conditions, thus driving changes in biodiversity and ecosystem functions. Quantifying niches of generalist predators can reveal how fragmentation alters ecosystems. In a habitat fragmentation experiment, we used stable isotopes of a generalist predator skink to test predictions from spatial theory on trophic structure and to quantify abiotic changes associated with fragmentation among continuous forest, fragments, and matrix habitats. We predicted that in fragments and...

Data from: Modern pollen from small hollows reflects Athrotaxis cupressoides density across a wildfire gradient in subalpine forests of the Central Plateau, Tasmania, Australia

Philip E. Higuera, Jesse L. Morris, Simon Haberle & Cathy Whitlock
Pollen assemblages from 50 small hollows were used to resolve fire-caused vegetation patterns in a ~2-km2 subalpine landscape on the Central Plateau of Tasmania, Australia. Sites were characterized by varying abundance of the dominant tree species, Athrotaxis cupressoides, reflecting mortality from a wildfire that occurred 53 years prior to sampling. Sites were classified a priori based on fire-related Athrotaxis mortality as burned (100% standing dead), unburned (<5% standing dead), and mixed (intermediate proportions). Non-parametric analysis...

Data from: Multimodal coordination enhances the responses to an avian duet

Paweł Ręk
Animals communicate with their whole bodies, so their signals can be complex and multimodal. The joint intelligibility of multimodal signal components depends on their temporal coordination, which, when only one signaler is involved, depends on the synchronization between the different modalities of signals involved. Coordination is a challenge, however, in cooperatively signaling species because it requires continuous monitoring of the partner’s behavior. Previous research showed that vocal coordination between cooperating individuals increases the perceived threat...

Data from: A reassessment of explanations for discordant introgressions of mitochondrial and nuclear genomes

Timothée Bonnet, Raphaël Leblois, Francois Rousset & Pierre-André Crochet
Hybridization is increasingly recognized as a significant evolutionary process, in particular because it can lead to introgression of genes from one species to another. A striking pattern of discordance in the amount of introgression between mitochondrial and nuclear markers exists such that substantial mitochondrial introgression is often found in combination with no or little nuclear introgression. Multiple mechanisms have been proposed to explain this discordance, including positive selection for introgressing mitochondrial variants, several types of...

Data from: Evaluating the performance of anchored hybrid enrichment at the tips of the tree of life: a phylogenetic analysis of Australian Eugongylus group scincid lizards

Matthew C. Brandley, Jason G. Bragg, Sonal Singhal, David G. Chapple, Charlotte K. Jennings, Alan R. Lemmon, Emily M. Lemmon, Michael B. Thompson & Craig Moritz
Background: High-throughput sequencing using targeted enrichment and transcriptomic methods enables rapid construction of phylogenomic data sets incorporating hundreds to thousands of loci. These advances have enabled access to an unprecedented amount of nucleotide sequence data, but they also pose new questions. Given that the loci targeted for enrichment are often highly conserved, how informative are they at different taxonomic scales, especially at the intraspecific / phylogeographic scale? We investigate this question using Australian scincid lizards...

Plant Respiration Modelling with JULES for a changing climate (1860-2100)

C. Huntingford, O.K. Atkin, A. Martinez-De La Torre, L.M. Mercado, M.A. Heskel, A.B. Harper, K.J. Bloomfield, O.S. O'Sullivan, P.B. Reich, K.R. Wythers, E.E. Butler, M. Chen, K.L. Griffin, P. Meir, M.G. Tjoelker, M.H. Turnbull, S. Sitch, A. Wiltshire & Y. Malhi
The dataset contains annual global plant respiration (and related diagnostics, such as Net Primary Productivity, Gross Primary Productivity and soil respiration), applicable for pre-industrial times (taken as year 1860) through to the end of the 21st Century (year 2100). The spatial resolution of the data is 2.5 degrees latitude x 3.75 degrees longitude. These diagnostics are outputs from the Joint UK Land Environment Simulator (JULES land surface model) under four different approaches to calcluate leaf...

Data from: Ecological restoration success is higher for natural regeneration than for active restoration in tropical forests

Renato Crouzeilles, Mariana S. Ferreira, Robin L. Chazdon, David B. Lindenmayer, Jerônimo B. B. Sansevero, Lara Monteiro, Alvaro Iribarrem, Agnieszka E. Latawiec & Bernardo B. N. Strassburg
Is active restoration the best approach to achieve ecological restoration success (the return to a reference condition, that is, old-growth forest) when compared to natural regeneration in tropical forests? Our meta-analysis of 133 studies demonstrated that natural regeneration surpasses active restoration in achieving tropical forest restoration success for all three biodiversity groups (plants, birds, and invertebrates) and five measures of vegetation structure (cover, density, litter, biomass, and height) tested. Restoration success for biodiversity and vegetation...

Data from: Effects of extreme weather on two sympatric Australian passerine bird species

Janet L. Gardner, Eleanor Rowley, Perry De Rebeira, Alma De Rebeira & Lyanne Brouwer
Despite abundant evidence that natural populations are responding to climate change, there are few demonstrations of how extreme climatic events (ECEs) affect fitness. Climate warming increases adverse effects of exposure to high temperatures, but also reduces exposure to cold ECEs. Here, we investigate variation in survival associated with severity of summer and winter conditions, and whether survival is better predicted by ECEs than mean temperatures using data from two coexisting bird species monitored over 37...

Registration Year

  • 2017
    53

Resource Types

  • Dataset
    53

Affiliations

  • Australian National University
    53
  • University of Melbourne
    7
  • Royal Botanic Gardens
    4
  • University of Minnesota
    3
  • University of California, Berkeley
    3
  • University of Zurich
    3
  • Lund University
    2
  • University of Edinburgh
    2
  • Museum of Vertebrate Zoology
    2
  • French National Centre for Scientific Research
    2