Large-scale eDNA metabarcoding survey reveals marine biogeographic break and transitions over tropical north-western AustraliaKatrina West, Michael Travers, Michael Stat, Euan Harvey, Zoe Richards, Joseph DiBattista, Stephen Newman, Alastair Harry, Craig Skepper, Matthew Heydenrych & Michael Bunce
Aim: Environmental DNA (eDNA) metabarcoding has demonstrated its applicability as a highly sensitive biomonitoring tool across small spatial and temporal scales in marine ecosystems. However, it has rarely been tested across large spatial scales, or biogeographical barriers. Here, we scale up marine eDNA metabarcoding, test its ability to detect a major marine biogeographic break, and evaluate its use as a regional biomonitoring tool in Australia. Location: North-western Australia (NWA) Methods: We applied metabarcoding assays targeting...
Environmental DNA can act as a biodiversity barometer of anthropogenic pressures in coastal ecosystemsJoseph DiBattista, James Reimer, Michael Stat, Giovanni Masucci, Piera Biondi, Maarten De Brauwer, Shaun Wilkinson, Anthony Chariton & Michael Bunce
Loss of biodiversity from lower to upper trophic levels reduces overall productivity and stability of coastal ecosystems in our oceans, but rarely are these changes documented across both time and space. The characterisation of environmental DNA (eDNA) from sediment and seawater using metabarcoding offers a powerful molecular lens to observe marine biota and provides a series of ‘snapshots’ across a broad spectrum of eukaryotic organisms. Using these next-generation tools and downstream analytical innovations including machine...
Data from: Unusual but consistent latitudinal patterns in macroalgal habitats and their invertebrate communities across two countriesHannah Lloyd, Juan Cruz-Motta, Tim Glasby, Pat Hutchings & Paul Gribben
Aim: The physical characteristics of biogenic habitats and environmental conditions are important determinants of biodiversity, yet their relative importance can change across spatial scales. We aimed to understand how relationships between the physical characteristics of macroalgal habitats and their invertebrate communities varied across spatial scales and whether general ecological patterns occurred across two countries. Location: 18 sites across the temperate east coasts of Australia (over 1,300 km) and New Zealand (over 1,000 km), with the...
Global Diversification Dynamics Since the Jurassic: Low Dispersal and Habitat-Dependent Evolution Explain Hotspots of Diversity and Shell Disparity in River Snails (Viviparidae)Björn Stelbrink, Romy Richter, Frank Köhler, Frank Riedel, Ellen Strong, Bert Van Bocxlaer, Christian Albrecht, Torsten Hauffe, Timothy Page, David Aldridge, Arthur Bogan, Li-Na Du, Marivene Manuel-Santos, Ristiyanti Marwoto, Alena Shirokaya & Thomas Von Rintelen
The Viviparidae, commonly known as River Snails, is a dominant group of freshwater snails with a nearly worldwide distribution that reaches its highest taxonomic and morphological diversity in Southeast Asia. The rich fossil record is indicative of a probable Middle Jurassic origin on the Laurasian supercontinent where the group started to diversify during the Cretaceous. However, it remains uncertain when and how the biodiversity hotspot in Southeast Asia was formed. Here, we used a comprehensive...
eDNA metabarcoding survey reveals fine-scale coral reef community variation across a remote, tropical island ecosystemKatrina West, Michael Stat, Euan Harvey, Craig Skepper, Joseph DiBattista, Zoe Richards, Michael Travers, Stephen Newman & Michael Bunce
Environmental DNA (eDNA) metabarcoding, a technique for retrieving multi-species DNA from environmental samples, can detect a diverse array of marine species from filtered seawater samples. There is a growing potential to integrate eDNA alongside existing monitoring methods in order to establish or improve the assessment of species diversity. Remote island reefs are increasingly vulnerable to climate-related threats and as such there is a pressing need for efficient whole-ecosystem surveying approaches to baseline biodiversity, study assemblage...
SNP genotyping of Lord Howe woodhen (Hypotaenidia sylvestris) from museum skins and contemporary blood samplesRichard Major, Kyle Ewart, Dean Portelli, Andrew King, Leah Tsang, Terry O’Dwyer, Nicholas Carlile, Christo Haselden, Hank Bower, David Alquezar-Planas, Rebecca Johnson & Mark Eldridge
These data are from a conservation genetics project investigating population structure, dispersal and genetic bottlenecks in the Lord Howe woodhen Hypotaenidia sylvestris. This species recovered from near extinction in the 1970s to approximately 250 individuals in 2017. We used single nucleotide polymorphisms (SNPs) to genotype samples of both the contemporary population and 100-year-old museum specimens. We discovered strong population structuring between mountain and lowland "subpopulations" in both the contemporary and historic populations. This is indicative...
Data for: Angels in disguise: Sympatric hybridization in the marine angelfishes is widespread and occurs between deeply divergent lineagesYi-Kai Tea, Jean-Paul Hobbs, Federico Vitelli, Joseph DiBattista, Simon Ho & Nathan Lo
Hybridization is not uncommon in marine environments where physical barriers are attenuated. Research conducted on hybridization in coral reefs has grown rapidly, but the majority of studies have focused on parapatric species along biogeographical suture zones. Comparatively little attention has been directed towards sympatric hybridization on coral reefs, despite the large amount of biogeographical overlap that occurs among coral reef species. Here we investigate if the propensity for hybridization along suture zones represents a general...
University of Newcastle Australia3
Department of Primary Industries and Regional Development2
Victoria University of Wellington1
University of Queensland1
University of Puerto Rico at Mayagüez1
University of Cambridge1
Department of Environment and Natural Resources1