12 Works

Data from: Dwarf brooder versus giant broadcaster: combining genetic and reproductive data to unravel cryptic diversity in an Antarctic brittle star

Quentin Jossart, Chester Sands & Mary A. Sewell
Poecilogony, or multiple developmental modes in a single species, is exceedingly rare. Several species described as poecilogenous were later demonstrated to be multiple (cryptic) species with a single developmental mode. The Southern Ocean is known to harbor a high proportion of brooders (Thorson's Rule) but with an increasing number of counter examples over recent years. Here we evaluated poecilogony versus crypticism in the brittle star Astrotoma agassizii across the Southern Ocean. This species was initially...

Data from: Old World and New World Phasmatodea: phylogenomics resolve the evolutionary history of stick and leaf insects

Sabrina Simon, Harald Letsch, Sarah Bank, Thomas R. Buckley, Alexander Donath, Shanlin Liu, Ryuichiro Machida, Karen Meusemann, Bernhard Misof, Lars Podsiadlowski, Xin Zhou, Benjamin Wipfler & Sven Bradler
Phasmatodea comprises over 3,000 extant species and stands out as one of the last remaining insect orders for which a robust, higher-level phylogenetic hypothesis is lacking. New research suggests that the extant diversity is the result of a surprisingly recent and rapid radiation that has been difficult to resolve with standard Sanger sequence data. In order to resolve the early branching events of stick and leaf insects, we analyzed transcriptomes from 61 species, including 38...

Data from: The origin of the central dogma through conflicting multilevel selection

Nobuto Takeuchi & Kunihiko Kaneko
The central dogma of molecular biology rests on two kinds of asymmetry between genomes and enzymes: informatic asymmetry, where information flows from genomes to enzymes but not from enzymes to genomes; and catalytic asymmetry, where enzymes provide chemical catalysis but genomes do not. How did these asymmetries originate? Here, we show that these asymmetries can spontaneously arise from conflict between selection at the molecular level and selection at the cellular level. We developed a model...

Auckland Volcanic Field eruption crisis management decision-making workshop

A. J. Wild, Jan M Lindsay, S. B. Costello, Natalia I. Deligne, A. Doherty, Graham S. Leonard, K. Maxwell, J. Rollin & Tom M. Wilson
Auckland is the largest city in New Zealand with 1.6 million residents. This major metropolitan region is situated upon the Auckland Volcanic Field (AVF), posing a considerable risk to the city’s population and essential services. On 17 December 2018, a workshop jointly run by DEVORA (Determining Volcanic Risk in Auckland) and Auckland Emergency Management (AEM) was held to discuss evacuation decision-support options in the event of a volcanic crisis in Auckland. The workshop brought together...

Eco-evolutionary feedbacks link prey adaptation to predator performance

David Fryxell, David C. Fryxell, Zachary T. Wood, Rebecca Robinson, Michael T. Kinnison & Eric P. Palkovacs
Eco-evolutionary feedbacks may determine the outcome of predator-prey interactions in nature, but little work has been done to quantify the feedback effect of short-term prey adaptation on predator performance. We tested the effects of prey availability and recent (< 100 years) prey adaptation on the feeding and growth rate of largemouth bass (Micropterus salmoides), foraging on western mosquitofish (Gambusia affinis). Field surveys showed higher densities and larger average body sizes of mosquitofish in recently introduced...

Data from: New Zealand tree and giant wētā (Orthoptera) transcriptomics reveal divergent selection patterns in metabolic loci

Victoria G. Twort, Richard D. Newcomb & Thomas R. Buckley
Exposure to low temperatures requires an organism to overcome physiological challenges. New Zealand wētā belonging to the genera Hemideina and Deinacrida are found across a wide range of thermal environments and therefore subject to varying selective pressures. Here we assess the selection pressures across the wētā phylogeny, with a particular emphasis on identifying genes under positive or diversifying selection. We used RNA-seq to generate transcriptomes for all 18 Deinacrida and Hemideina species. A total of...

Data from: Biogeography and anthropogenic impact shape the success of invasive wasps on New Zealand’s offshore islands

Julia Schmack
Aim The theory of island biogeography predicts that the susceptibility of an island to invasion is determined by its isolation and size. However, many island ecosystems have been intensely modified by humans. Here, we investigated the biogeographic, biotic and anthropogenic drivers of invasive social wasps on 36 offshore islands. Location Islands off the east coast of New Zealand’s North Island. Taxa Vespula germanica (Fabricius, 1793), Vespula vulgaris (Linnaeus, 1758) and Polistes chinensis antennalis (Fabricius, 1793),...

Data from: Contrast sensitivity and behavioural evidence for lateral inhibition in octopus

Luis Nahmad-Rohen & Misha Vorobyev
Behavioural contrast sensitivity in Octopus tetricus was measured in the range 0.05- 12 cycles per degree (cpd) using a fixation reflex. We show that the contrast sensitivity reaches its maximum (between 1% and 4%) at 0.3 cpd, and decreases to approximately half of the maximum value at the lowest spatial frequency. Reduction of sensitivity at low spatial frequency is a signature of lateral inhibition in visual systems. In vertebrates and insects, lateral inhibition helps to...

ICD-1/BTF3 antagonizes SKN-1-mediated endoderm specification in Caenorhabditis elegans

Chee Kiang Ewe, Yamila N Torres Cleuren & Joel H Rothman
The entire C. elegans intestine is derived from a single endodermal progenitor cell (E), the posterior daughter arising from the asymmetric division of the EMS blastomere. During early embryonic development, maternally provided SKN-1/Nrf2 activates the mesendoderm gene regulatory network (GRN) in both E and its sister, MS. A triply redundant Wnt/MAPK/Src signaling system from the neighboring P2 blastomere polarizes EMS, resulting in activation of E fate on the side contacting it. In MS, and in...

Data from: Effects of mis-alignment between dispersal traits and landscape structure on dispersal success in fragmented landscapes

Justine A. Atkins, George L. W. Perry & Todd E. Dennis
Dispersal is fundamental to population dynamics and hence extinction risk. The dispersal success of animals depends on the biophysical structure of their environments and their biological traits; however, comparatively little is known about how evolutionary trade-offs among suites of biological traits affect dispersal potential. We developed a spatially explicit agent-based simulation model to evaluate the influence of trade-offs among a suite of biological traits on the dispersal success of vagile animals in fragmented landscapes. We...

A genome-wide investigation of adaptations related to tool use behaviour in New Caledonian and Hawaiian crows

Nicolas Dussex, Verena E. Kutschera, R. Axel W. Wiberg, Darren Parker, Gavin Hunt, Russell D. Gray, Kim Rutherford, Abe Hideaki, Robert Fleischer, Christian Rutz, Michael G. Ritchie, Jochen B.W. Wolf & Neil J. Gemmell
GFF3 file with protein-coding gne predictions for the C. moneduloides de novo genome assembly (available at the National Center for Biotechnology Information (NCBI); assembly accession number: VRTO00000000), generated using the MAKER2 pipeline.

Registration Year

  • 2019
    12

Resource Types

  • Dataset
    9
  • Text
    2
  • Data Paper
    1

Affiliations

  • University of Auckland
    12
  • Princeton University
    1
  • Fiji National University
    1
  • Zoological Research Museum Alexander Koenig
    1
  • University of Cambridge
    1
  • University of Otago
    1
  • British Antarctic Survey
    1
  • University of Göttingen
    1
  • University of Tsukuba
    1
  • University of California, Santa Barbara
    1