26 Works

Paternal exposure to a common herbicide alters the behavior and serotonergic system of zebrafish offspring

Simon Lamb, Jolyn Chia & Sheri Johnson
Increasingly, studies are revealing that endocrine disrupting chemicals (EDCs) can alter animal behavior. Early life exposure to EDCs may permanently alter phenotypes through to adulthood. In addition, the effects of EDCs may not be isolated to a single generation − offspring may indirectly be impacted, via non-genetic processes. Here, we analyzed the effects of paternal atrazine exposure on behavioral traits (distance moved, exploration, bottom-dwelling time, latency to enter the top zone, and interaction with a...

Data for: Psychological distress, anxiety, suicidality, and wellbeing in New Zealand during the COVID-19 lockdown: a cross-sectional study

Susanna Every-Palmer, Matthew Jenkins, Philip Gendall, Janet Hoek, Ben Beaglehole, Caroline Bell, Jonathan Williman, Charlene Rapsey & James Stanley
Dataset for following paper. Introduction New Zealand’s early response to the novel coronavirus pandemic included a strict lockdown which eliminated community transmission of COVID-19. However, this success was not without cost, both economic and social. In our study, we examined the psychological wellbeing of New Zealanders during the COVID-19 lockdown when restrictions reduced social contact, limited recreation opportunities, and resulted in job losses and financial insecurity. Methods We conducted an online panel survey of a...

Heat and water loss vs shelter: a dilemma in thermoregulatory decision-making for a retreat-dwelling nocturnal gecko

Christian Chukwuka, Joanne M. Monks & Alison Cree
Understanding the interaction between upper voluntary thermal limit (VTmax) and water loss may aid in predicting responses of ectotherms to increasing temperatures within microhabitats. However, the temperature (VTmax) at which climate heating will force cool-climate, nocturnal lizards to abandon daytime retreats remains poorly known. Here, we developed a new laboratory protocol for determining VTmax in the retreat-dwelling, viviparous Woodworthia Otago/Southland gecko, based on escape behaviour (abandonment of heated retreat). We compared the body temperature (Tb)...

Data from: Integrating climate and host richness as drivers of global parasite diversity

Paulo M. Martins, Robert Poulin & Thiago Gonçalves-Souza
Aim: Climate and host richness are essential drivers of global gradients in parasite diversity, and the few existing studies on parasites have mostly investigated their effects separately. The advantages of combining these factors into a single analytical framework include unravelling the relative roles of abiotic and biotic drivers of parasite diversity. We compiled a dataset of helminths of amphibians to investigate the direct and indirect effects of temperature seasonality, annual precipitation, precipitation seasonality and host...

Pioneering polyploids: the impact of whole-genome duplication on biome shifting in New Zealand Coprosma (Rubiaceae) and Veronica (Plantaginaceae)

Luke Liddell, William Lee, Esther Dale, Heidi Meudt & Nick Matzke
The role of whole-genome duplication in facilitating shifts into novel biomes remains unknown. Focusing on two diverse woody plant groups in New Zealand, Coprosma (Rubiaceae) and Veronica (Plantaginaceae), we investigate how biome occupancy varies with ploidy level, and test the hypothesis that whole-genome duplication increases the rate of biome shifting. Ploidy levels and biome occupancy (forest, open, and alpine) were determined for indigenous species in both clades. The distribution of low ploidy (Coprosma: 2x, Veronica:...

Phylogenomics resolves the invasion history of Acacia auriculiformis in Florida

Graham McCulloch
Aim: Understanding the genetic structure of plants in their native range is crucial when reconstructing the invasion history of weeds. This information allows researchers to pin-point the provenance of invasive plants, and to test the importance of genetic admixture in facilitating invasion success. We assessed genetic structuring across the native range of A. auriculiformis, to determine whether genetic admixture contributes to the success of this weed in its introduced range, and test for rapid adaptation...

Persisting in a glaciated landscape: Pleistocene microrefugia evidenced by the tree wētā Hemideina maori in central South Island, New Zealand

Keith King, Debbie Lewis, Jonathan Waters & Graham Wallis
Aim: Repeated cycles of Pleistocene glaciation have influenced phylogeographic structure of taxa on New Zealand’s South Island. Many taxa became restricted to refugia at either end of the island during glaciation, resulting in an area of low endemicity in central South Island. This area of low endemism is typified by the so-called beech (or biotic) gap, where the absence of Nothofagus forest (and many other plant and invertebrate taxa) has been attributed to repeated glaciation....

Data from: Does migration promote or inhibit diversification? A case study involving the dominant radiation of temperate Southern Hemisphere freshwater fishes

Christopher Burridge & Jonathan M. Waters
While theory predicts that dispersal is a pivotal influence on speciation and extinction rates, it can have contradictory effects on each, such that empirical studies are needed to quantify its role. In many studies, dispersal reduction appears to promote diversification, although some analyses of migratory species suggest otherwise. Here we test for a relationship between migratory status and diversification rate within the dominant radiation of temperate Southern Hemisphere freshwater fishes, the Galaxiidae. We reconstructed a...

A genome-skimmed phylogeny of a widespread bryozoan family, Adeonidae

Russell John Scott Orr, Marianne N. Haugen, Björn Berning, Philip Bock, Robyn Cumming, Wayne Florence, Masato Hirose, Emanuela Di Martino, Mali H. Ramsfjell, Maja M. Sannum, Abigail M. Smith, Leandro M. Vieira, Andrea Waeschenbach & Lee Hsiang Liow
Understanding the phylogenetic relationships among species is one of the main goals of systematic biology. Simultaneously, credible phylogenetic hypotheses are often the first requirement for unveiling the evolutionary history of traits and for modelling macroevolutionary processes. However, many non-model taxa have not yet been sequenced to an extent such that statistically well-supported molecular phylogenies can be constructed for these purposes. Here, we use a genome-skimming approach to extract sequence information for 15 mitochondrial and 2...

Data from: Phylogeography of the Cran’s bully Gobiomorphus basalis (Gobiiformes: Eleotridae) and an analysis of species boundaries within the New Zealand radiation of Gobiomorphus

James Shelley, Bruno David, Christine Thacker, Andy Hicks, Matt Jarvis & Peter Unmack
New Zealand has a complex recent history of climatic and tectonic change that has left variable signatures in the geographic distribution and genetic structure of the region’s flora and fauna. To identify concordant patterns, a broad range of taxa must be examined and compared. In New Zealand’s North Island, a consensus is forming as to the dominant biogeographic barriers in the region although obligate freshwater taxa have not been considered in this framework. We use...

Stocks of paracetamol products stored in urban New Zealand households: A cross-sectional study

Eeva-Katri Kumpula, Pauline Norris & Adam Pomerleau
Background Intentional self-harm is a common cause of hospital presentations in New Zealand and across the world, and self-poisoning is the most common method of self-harm. Paracetamol (acetaminophen) is frequently used in impulsive intentional overdoses, where ease of access may determine the choice of substance. Objective This cross-sectional study aimed to determine how much paracetamol is present and therefore accessible in urban New Zealand households, and sources from where it has been obtained. This information...

Genomics reveals widespread ecological speciation in flightless insects

Graham McCulloch, Brodie Foster, Ludovic Dutoit, Thomas Harrop, Joseph Guhlin, Peter Dearden & Jonathan Waters
Recent genomic analyses have highlighted parallel divergence in response to ecological gradients, but the extent to which altitude can underpin such repeated speciation remains unclear. Wing reduction and flight loss have apparently evolved repeatedly in montane insect assemblages, and have been suggested as important drivers of hexapod diversification. We test this hypothesis using genomic analyses of a widespread wing-polymorphic stonefly species complex in New Zealand. We identified over 50,000 polymorphic genetic markers generated across almost...

Data from: Dunnock social status correlates with sperm speed, but fast sperm does not always equal high fitness

Carlos E. Lara, Helen R. Taylor, Benedikt Holtmann, Eduardo S. A. Santos, Sheri L. Johnson, Neil J. Gemmell & Shinichi Nakagawa
Sperm competition theory predicts that males should modulate sperm investment according to their social status. Sperm speed, one proxy of sperm quality, also influences the outcome of sperm competition because fast sperm cells may fertilize eggs before slow sperm cells. We evaluated whether the social status of males predicted their sperm speed in a wild population of dunnocks (Prunella modularis). In addition to the traditional analysis of the average speed of sperm cells per sample,...

When fiction becomes fact: exaggerating host manipulation by parasites

Jean-François Doherty
In an era where some find fake news around every corner, the use of sensationalism has inevitably found its way into the scientific literature. This is especially the case for host manipulation by parasites, a phenomenon in which a parasite causes remarkable change in the appearance or behaviour of its host. This concept, which has deservedly garnered popular interest throughout the world in recent years, is nearly 50-years old. In the past two decades, the...

New live capture Araneae trap for ecologically sensitive areas

James Crofts-Bennett, Janice Lord & John Steel
Contemporary field sampling methods for collecting invertebrates are typically destructive posing a risk to invertebrate populations many of which are already threatened worldwide. As an important ecological keystone order with extensive links with other trophic levels, spiders (Araneae) can act as indicators of ecosystem function. We present a novel non-kill trap designed to sample ground dwelling Araneae. The Sanctum Aranearum is a trap baited with structural complexity; the internal structure of the trap is designed...

Diversification in evolutionary arenas – assessment and synthesis

Nicolai M. Nürk, H. Peter Linder, Renske E. Onstein, Matthew J. Larcombe, Colin E. Hughes, Laura Piñeiro Fernández, Philipp M. Schlüter, Luis Valente, Carl Beierkuhnlein, Vanessa Cutts, Michael J. Donoghue, Erika J. Edwards, Richard Field, Suzette G.A. Flantua, Steven I. Higgins, Anke Jentsch, Sigrid Liede-Schumann & Michael D. Pirie
Understanding how and why rates of evolutionary diversification vary is a central issue in evolutionary biology, ecology and biogeography. The concept of adaptive radiation has attracted much interest, but is metaphorical and verbal in nature, making it difficult to quantitatively compare different evolutionary lineages or geographic regions. In addition, the causes of evolutionary stasis are relatively neglected. Here we review the central concepts in the evolutionary diversification literature and bring these together by proposing a...

Data from: Animal models to understand the etiology and pathophysiology in polycystic ovary syndrome

Elisabet Stener-Victorin, Vasantha Padmanabhan, Kirsty A Walters, Rebecca E Campbell, Anna Benrick, Paolo Giacobini, Daniel A Dumesic & David H Abbott
More than one out of ten women worldwide are diagnosed with the leading cause of female reproductive and metabolic dysfunction, polycystic ovary syndrome (PCOS). Despite its high prevalence, PCOS and its accompanying morbidities are likely under-diagnosed, averaging >2 years and 3 physicians changes before women are diagnosed. Despite intensive research, the underlying cause(s) of PCOS have yet to be defined. In order to understand PCOS pathophysiology, its developmental origins, and how to predict and prevent...

A molecular phylogeny of historical and contemporary specimens of an under-studied micro-invertebrate group

Russell Orr, Maja Sannum, Sanne Boessenkool, Emanuela Di Martino, Dennis Gordon, Hannah Mello, Matthias Obst, Mali Ramsfjell, Abigail Smith & Lee-Hsiang Liow
Resolution of relationships at lower taxonomic levels is crucial for answering many evolutionary questions, and as such, sufficiently varied species representation is vital. This latter goal is not always achievable with relatively fresh samples. To alleviate the difficulties in procuring rarer taxa, we have seen increasing utilization of historical specimens in building molecular phylogenies using high throughput sequencing. This effort, however, has mainly focused on large-bodied or well-studied groups, with small-bodied and under-studied taxa under-prioritized....

Shared geographic histories and dispersal contribute to congruent phylogenies between amphipods and their microsporidian parasites at regional and global scales

Eunji Park, Fátima Jorge & Robert Poulin
In parasites that strongly rely on a host for dispersal, geographic barriers that act on the host will simultaneously influence parasite distribution as well. If their association persists over macroevolutionary time it may result in congruent phylogenetic and phylogeographic patterns due to shared geographic histories. Here, we investigated the level of congruent evolutionary history at a regional and global scale in a highly specialised parasite taxon infecting hosts with limited dispersal abilities: the microsporidians Dictyocoela...

Personality does not predict individual niche variation in a freshwater fish

Travis Ingram & Nicky Kerr
Animal populations can exhibit considerable inter-individual variation in both behavioral traits and niche use, but the potential connections between these characteristics are rarely compared for the same individuals. We aimed to test whether behavioral syndromes were predictive of individual diet or microhabitat in a native New Zealand freshwater fish, Gobiomorphus cotidianus. We carried out laboratory behavioral assays and repeated habitat and diet measurement in a semi-natural mesocosm system. We found considerable repeatability in individual behavior,...

A new remarkable dwarf sedge (Carex phylloscirpoid, Cyperaceae) from Northern Chile, with insights on the evolution of Austral section Racemosae

Pedro Jiménez-Mejías, Patricio Saldivia, Sebastian Gebauer & Santiago Martín-Bravo
We describe a new remarkable dwarf and apparently acaulescent species of Carex (Cyperaceae) from the Andes of northern Chile: Carex phylloscirpoides. Morphological and molecular data (two nuclear and three plastid DNA regions) were used to study the phylogenetic placement and systematic relationships of this species, which resulted in its assignment to section Racemosae. However, despite being related to the other three species of the section present in the Southern Cone based on phylogenetic evidence, it...

Bayesian inference of tree species using diffusion models: tabulated posterior statistics for SNAPP and SNAPPER analyses

David Bryant
We describe a new and computationally efficient Bayesian methodology for inferring species trees and demographics from unlinked binary markers. Likelihood calculations are carried out using diffusion models of allele frequency dynamics combined with novel numerical algorithms. The diffusion approach allows for analysis of datasets containing hundreds or thousands of individuals. The method, which we call \snapper, has been implemented as part of the BEAST2 package. We conducted simulation experiments to assess numerical error, computational requirements...

Data from: The genomic footprint of coastal earthquake uplift

Elahe Parvizi, Ceridwen Fraser, Ludovic Dutoit, Dave Craw & Jonathan Waters
Theory suggests that catastrophic earth-history events can drive rapid biological evolution, but empirical evidence for such processes is scarce. Destructive geological events such as earthquakes can represent large-scale natural experiments for inferring such evolutionary processes. We capitalised on a major prehistoric (800 y BP) geological uplift event affecting a southern New Zealand coastline to test for the lasting genomic impacts of disturbance. Genome-wide analyses of three co-distributed keystone kelp taxa revealed that post-earthquake recolonization drove...

Data from: Phenotypic, ecological and genomic variation in common bully (Gobiomorphus cotidianus) populations along depth gradients in New Zealand's Southern Great Lakes

Travis Ingram, Ludovic Dutoit, Pavel Mikheev, Samiullah Khan & Marc Schallenberg
Depth gradients in lakes are often key drivers of population divergence and speciation in fishes. New Zealand has many deep lakes but no known profundal specialist fishes or cases of intralacustrine speciation. We sampled a native benthic fish, the common bully, from 5–90 m depth in four South Island lakes, to test for morphological, ecological, or genetic differentiation associated with depth. Deeper fish consistently had narrower bodies, while other morphological traits showed variable relationships with...

Consistent individual differences in ecto-parasitism of a long-lived lizard host

Eric Payne, David Sinn, Orr Spiegel, Stephan Leu, Caroline Wohlfeil, Stephanie Godfrey, Michael Gardner & Andrew Sih
Individual hosts vary substantially in their parasite loads. However, whether individual hosts have consistently different loads remains uncertain. If so, hosts that have consistently high parasite loads may serve as key reservoirs or super-spreaders. Thus, identifying whether individuals persistently differ in their parasitism and the factors that explain these patterns constitute important issues for disease ecology and management. To investigate these topics, we examined nine years of tick counts in a wild population of sleepy...

Registration Year

  • 2020
    26

Resource Types

  • Dataset
    26

Affiliations

  • University of Otago
    26
  • University of Gothenburg
    2
  • University of Oslo
    2
  • UNSW Sydney
    2
  • National Institute of Water and Atmospheric Research
    2
  • University of Adelaide
    1
  • University of Hohenheim
    1
  • Kitasato University
    1
  • Upper Austrian Research
    1
  • University of Neuchâtel
    1