13 Works

Data from: Subsistence practices, past biodiversity, and anthropogenic impacts revealed by New Zealand-wide ancient DNA survey

Frederik V. Seersholm, Theresa L. Cole, Alicia Grealy, Nicolas J. Rawlence, Karen Greig, Michael Knapp, Michael Stat, Anders J. Hansen, Luke J. Easton, Lara Shepherd, Alan J. D. Tennyson, R. Paul Scofield, Richard Walter & Michael Bunce
New Zealand’s geographic isolation, lack of native terrestrial mammals, and Gondwanan origins make it an ideal location to study evolutionary processes. However, since the archipelago was first settled by humans (c. 1280 AD), its unique biodiversity has been under pressure, and today an estimated 49% of the terrestrial avifauna is extinct. Current efforts to conserve the remaining fauna rely on a better understanding of the composition of past ecosystems, as well as the causes and...

Data from: Rautangaroa, a new genus of feather star (Echinodermata: Crinoidea) from the Oligocene of New Zealand

Tomasz K. Baumiller & R. Ewan Fordyce
We describe a nearly complete, and thus extremely rare, featherstar (Crinoidea, Comatulida) from Oligocene strata of North Otago/South Canterbury, New Zealand. A detailed analysis of this specimen, as well as newly recovered material and previously described fragmentary remains from nearby contemporaneous sedimentary units, in addition to relevant historical specimens, lead us to conclude that it cannot be placed in any currently established genus. A new genus, Rautangaroa, is proposed to accommodate it. This intact specimen...

Data from: Reduced representation sequencing detects only subtle regional structure in a heavily exploited and rapidly recolonizing marine mammal species

Nicolas Dussex, Helen R. Taylor, Willam R. Stovall, Kim Rutherford, Ken G. Dodds, Shannon M. Clarke & Neil J. Gemmell
Next‐generation reduced representation sequencing (RRS) approaches show great potential for resolving the structure of wild populations. However, the population structure of species that have shown rapid demographic recovery following severe population bottlenecks may still prove difficult to resolve due to high gene flow between subpopulations. Here, we tested the effectiveness of the RRS method Genotyping‐By‐Sequencing (GBS) for describing the population structure of the New Zealand fur seal (NZFS, Arctocephalus forsteri), a species that was heavily...

Data from: Using molecular diet analysis to inform invasive species management: a case study of introduced rats consuming endemic New Zealand frogs

Bastian Egeter, Cailin Roe, Sara Peixoto, Pamela Puppo, Luke J. Easton, Joana Pinto, Phil J. Bishop & Bruce C. Robertson
The decline of amphibians has been of international concern for more than two decades and the global spread of introduced fauna is a major factor in this decline. Conservation management decisions to implement control of introduced fauna are often based on diet studies. One of the most common metrics to report in diet studies is Frequency of Occurrence (FO), but this can be difficult to interpret, as it does not include a temporal perspective. Here...

Data from: Top-down control by an aquatic invertebrate predator increases with temperature but does not depend on individual behavioural type

Travis Ingram & Zuri D. Burns
Variation in behavioural traits among individuals within a population can have implications for food webs and ecosystems. Temperature change also alters food web structure and function, but potential interactions between warming and intraspecific behavioural variation are largely unexplored. We aimed to test how increased temperature, individual activity level of a predatory backswimmer (Anisops assimilis), and their interaction influenced the strength of top-down control of zooplankton and phytoplankton. We used stable isotopes to support our assumption...

Data from: Bryozoan genera Fenestrulina and Microporella no longer confamilial; multi-gene phylogeny supports separation

Russell J S Orr, Andrea Waeschenbach, Emily L. G. Enevoldsen, Jeroen P. Boeve, Marianne N. Haugen, Kjetil L. Voje, Joanne Porter, Kamil Zágoršek, Abigail M. Smith, Dennis P. Gordon & Lee Hsiang Liow
Bryozoans are a moderately diverse, mostly marine phylum with a fossil record extending to the early Ordovician. Compared to other phyla, little is known about their phylogenetic relationships at both lower and higher taxonomic levels. Hence, an effort is being made to elucidate the phylogenetic relationships among bryozoans. Here, we present newly sequenced nuclear and mitochondrial genes for 21 cheilostome bryozoans and compile these with existing orthologous molecular data. Using these data, we focus on...

Data from: Genetic sex assignment in wild populations using GBS data: a statistical threshold approach

William R. Stovall, Helen R. Taylor, Michael Black, Stefanie Grosser, Kim Rutherford & Neil J. Gemmell
Establishing the sex of individuals in wild systems can be challenging and often requires genetic testing. Genotyping-by-sequencing (GBS) and other reduced representation DNA sequencing (RRS) protocols (e.g., RADseq, ddRAD) have enabled the analysis of genetic data on an unprecedented scale. Here, we present a novel approach for the discovery and statistical validation of sex-specific loci in GBS datasets. We used GBS to genotype 166 New Zealand fur seals (NZFS, Arctocephalus forsteri) of known sex. We...

Data from: The effect of agriculture on the seasonal dynamics and functional diversity of benthic biofilm in tropical headwater streams

Ricardo H. Taniwaki, Christoph D. Matthaei, Tatima K. M. Cardoso, Silvio F. B. Ferraz, Luiz A. Martinelli & Jeremy J. Piggott
Tropical streams are one of the most endangered ecosystems in the world due to the constant pressures from human activities. Among these activities, agriculture represents a land use that is crucial for human development but also a key driver of stream degradation and biodiversity decline in the tropics. Against this background, we investigated indirect effects of agriculture (alterations in stream flow and nutrient availability) and climate characteristics (water temperature) on benthic biofilm communities in tropical...

Data from: Insect wing loss is tightly linked to the treeline: evidence from a diverse stonefly assemblage

Graham A. McCulloch, Brodie J. Foster, Travis Ingram & Jonathan M. Waters
The secondary loss of flight in previously winged insect lineages has long fascinated biologists. Habitat stability and isolation are thought to play important roles in driving wing reduction (Roff 1990, 1994), with exposure to high winds suggested to accelerate this process (Darwin 1859), although the role exposure plays in insect wing loss has never been empirically demonstrated. Here we assess fine-scale distributional records from a diverse regional stonefly assemblage, to demonstrate a widespread association between...

Data from: Specific MHC class I supertype associated with parasite infection and colour morph in a wild lizard population

Jessica D. Hacking, Devi Stuart-Fox, Stephanie S. Godfrey & Michael G. Gardner
The major histocompatibility complex (MHC) is a large gene family that plays a central role in the immune system of all jawed vertebrates. Non-avian reptiles are under-represented within the MHC literature and little is understood regarding the mechanisms maintaining MHC diversity in this vertebrate group. Here, we examined the relative roles of parasite-mediated selection and sexual selection in maintaining MHC class I diversity of a colour polymorphic lizard. We discovered evidence for parasite-mediated selection acting...

Data from: The evolution of epigenetically-mediated adaptive transgenerational plasticity in a subdivided population

Philip B. Greenspoon & Hamish G. Spencer
Transgenerational plasticity (TGP) occurs when offspring exhibit plasticity in traits induced by the environments experienced by their parents, and represents a non-genetic mechanism of inheritance. Evidence that traits can be transmitted to future generations by means other than genetic inheritance has caused a surge of interest in epigenetic inheritance, but evidence for epigenetic modifications being both adaptive and heritable remains scarce. What features would make a species most prone to evolve a system of epigenetically-mediated...

Data from: Caste ratio adjustments in response to perceived and realised competition in parasites with division of labour

Clément Lagrue, Colin D. MacLeod, Laurent Keller & Robert Poulin
1. Colonial organisms with division of labour are assumed to achieve increased colony-level efficiency in task performance through functional specialisation of individuals into distinct castes. In social insects, ratios of individuals in different castes can adjust adaptively in response to external threats. However, whether flexibility in caste ratio also occurs in other social organisms with division of labour remains unclear. Some parasitic trematodes, in which clonal colonies within the snail intermediate host comprise a reproductive...

Data from: Out of Africa: the slow train to Australasia

Jonathan M. Waters & Michael S. Roy
We used mitochondrial DNA (mtDNA) sequences to test biogeographic hypotheses for Patiriella exigua (Asterinidae), one of the world's most widespread coastal sea stars. This small intertidal species has an entirely benthic life history and yet occurs in southern temperate waters of the Atlantic, Indian, and Pacific oceans. Despite its abundance around southern Africa, southeastern Australia, and several oceanic islands, P. exigua is absent from the shores of Western Australia, New Zealand, and South America. Phylogenetic...

Registration Year

  • 2018
    13

Resource Types

  • Dataset
    13

Affiliations

  • University of Otago
    13
  • University of Michigan-Ann Arbor
    1
  • AgResearch (New Zealand)
    1
  • Trinity College
    1
  • University of Lausanne
    1
  • University of Melbourne
    1
  • Flinders University
    1
  • Macquarie University
    1
  • University of Oslo
    1
  • Universidade Federal do ABC
    1