13 Works

Epigenetic induction may speed up or slow down speciation with gene flow: code and data

Philip Greenspoon, Hamish Spencer & Leithen M'Gonigle
Speciation is less likely to occur when there is gene flow between nascent species. Natural selection can oppose gene flow and promote speciation if there is variation in ecological conditions among the nascent species' locations. Previous theory on ecological speciation with gene flow has focused primarily on the role of genetic variation in ecological traits, largely neglecting the role of non-genetic inheritance or transgenerational plasticity. Here we present the simulation code and data from models...

Data for: Thriving in a pandemic: determinants of excellent wellbeing among New Zealanders during the 2020 COVID-19 lockdown; a cross-sectional survey

Ben Beaglehole, Jonathan Williman, Caroline Bell, James Stanley, Matthew Jenkins, Philip Gendall, Janet Hoek, Charlene Rapsey & Susanna Every-Palmer
Objective: The COVID-19 pandemic and associated restrictions are associated with adverse psychological impacts but an assessment of positive wellbeing is required to understand the overall impacts of the pandemic. Methods: The NZ Lockdown Psychological Distress Survey measured excellent wellbeing categorised by a WHO-Five Well-being Index (WHO-5) score ≥22. The survey also contained demographic and pre-lockdown questions, subjective and objective lockdown experiences, and questions on alcohol use. The proportion of participants with excellent wellbeing is reported...

Sequenced genome for rimurapa/southern bull kelp/Durvillaea antarctica.

Ceridwen Fraser

Variable vulnerability to climate change in New Zealand lizards

Scott Jarvie, Travis Ingram, David Chapple, Rodney Hitchmough, Stuart Nielsen & Joanne M. Monks
Aim: The primary drivers of species and population extirpations have been habitat loss, overexploitation, and invasive species, but human-mediated climate change is expected to be a major driver in future. To minimise biodiversity loss, conservation managers should identify species vulnerable to climate change and prioritise their protection. Here, we estimate climatic suitability for two speciose taxonomic groups, then use phylogenetic analyses to assess vulnerability to climate change. Location: Aotearoa New Zealand (NZ) Taxa: NZ lizards:...

Rapid radiation of Southern Ocean shags in response to receding sea ice

Nic Rawlence
Aim: Understanding how wild populations respond to climatic shifts is a fundamental goal of biological research in a fast-changing world. The Southern Ocean represents a fascinating system for assessing large-scale climate-driven biological change, as it contains extremely isolated island groups within a predominantly westerly, circumpolar wind and current system. The blue-eyed shags (Leucocarbo spp.) represent a paradoxical Southern Ocean seabird radiation; a circumpolar distribution implies strong dispersal capacity yet their speciose nature suggests local adaptation...

Prolactin and Lutenizing hormone levels during diestrus and proestrus in mice

Holly Phillipps, Zin Khant Aung & Dave Grattan
Prolactin secretion patterns are species-specific, variable and influenced by multiple factors including circadian and hormonal cues, stress, physiological state and reproductive strategy. In nonpregnant females, circulating prolactin levels are low; however, during the afternoon of proestrus an estradiol-induced prolactin surge coinciding with the preovulatory LH surge has been recorded in many (but not all) species. In mice, there have been conflicting reports relating to the occurrence and timing of this surge. To gain insight into...

Interpreting past trophic ecology of a threatened species, kea (Nestor notabilis), from museum specimens

Priscilla Wehi, Karyne Rogers, Tim Jowett & Amandine Sabadel
When ecosystems are under severe pressure or environments change, trophic position and intraspecific niche width may decrease or narrow, signalling that conservation action is required. In New Zealand, alpine and sub-alpine ecosystems have been extensively modified through farming since 19th century European settlement, with consequences for indigenous species such as the kea (Nestor notabilis). We investigated feather stable isotope values in the kea and predicted a lower trophic position in modern kea populations, to reflect...

Taxonomy based on limited genomic markers may underestimates species diversity of rockhopper penguins and threaten their conservation

María José Frugone, Theresa Cole, María Eugenia López, Gemma Clucas, Pável Matos-Maraví, Nicolás Lois, Pierre Pistorius, Francesco Bonadonna, Phil Trathan, Andrea Polanowski, Barbara Wienecke, Andrea Raya-Rey, Klemens Pütz, Antje Steinfurth, Ke Bi, Cynthia Wang-Claypool, Rauri C. K. Bowie, Jonathan Waters, Elie Poulin & Juliana Vianna
Delimiting recently diverged species is challenging. During speciation, genetic differentiation may be distributed unevenly across the genome, as different genomic regions can be subject to different selective pressures and evolutionary histories. Reliance on limited numbers of genetic markers that may be underpowered can make species delimitation even more challenging, potentially resulting in taxonomic inconsistencies. Rockhopper penguins of the genus Eudyptes comprise three broadly recognized taxa: northern (E. moseleyi), southern (E. chrysocome), and eastern rockhopper (E....

Genetic evidence for post-glacial expansion from a southern refugium in the eastern moa (Emeus crassus)

Alexander J. F. Verry, Kieren J. Mitchell & Nicolas J. Rawlence
Cycles of glacial expansion and contraction throughout the Pleistocene drove increases and decreases, respectively, in the geographical range and population size of many animal species. Genetic data have revealed that during glacial maxima the distribution of many Eurasian animals was restricted to small refugial areas, from which species expanded to reoccupy parts of their former range as the climate warmed. It has been suggested that the extinct eastern moa (Emeus crassus)—a large, flightless bird from...

What’s in a name? Taxonomic and gender biases in the etymology of new species names

Robert Poulin, Cameron McDougall & Bronwen Presswell
As our inventory of Earth’s biodiversity progresses, the number of species given a Latin binomial name is also growing. While the coining of species names is bound by rules, the sources of inspiration used by taxonomists are an eclectic mix. We investigated naming trends for nearly 2900 new species of parasitic helminths described in the past two decades. Our analysis indicates that the likelihood of new species being given names that convey some information about...

Intrinsic traits, social context, local environment, and home range size and fidelity data from a field study of sleepy lizards, 2009 - 2017

Eric Payne, Orr Spiegel, David Sinn, Stephan Leu, Michael Gardner, Stephanie Godfrey, Caroline Wohlfeil & Andrew Sih
Home ranges, the region within which animals interact with their environment, constitute a fundamental aspect of their ecology. Home range (HR) sizes and locations commonly reflect costs and benefits associated with diverse social, biotic and abiotic factors. Less is known, however, about how these factors affect intra-specific variation in HR size or fidelity (the individual’s tendency to maintain the same HR location over time), or if variation in these features emerge from consistent differences among...

Hoplodactylus duvaucelii sequencing reads (FastQ) - modern, historic and ancient

Lachie Scarsbrook, Alexander JF Verry, Kerry Walton, Rodney A Hitchmough & Nicolas J Rawlence
Methodological and technological improvements are continually revolutionizing the field of ancient DNA. Most ancient DNA extraction methods require the partial (or complete) destruction of finite museum specimens, which disproportionately impacts small or fragmentary subfossil remains, and future analyses. We present a minimally destructive ancient DNA extraction method optimized for small vertebrate remains. We applied these methods to detect lost mainland genetic diversity in the large New Zealand diplodactylid gecko genus Hoplodactylus, which is presently restricted...

Registration Year

  • 2022
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Affiliations

  • University of Otago
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  • University of Buenos Aires
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  • University of Adelaide
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  • University of California, Berkeley
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  • British Antarctic Survey
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  • Simon Fraser University
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  • Florida Museum of Natural History
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  • Swedish University of Agricultural Sciences
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