10 Works

Data from: Parasites affect food web structure primarily through increased diversity and complexity

Jennifer A. Dunne, Kevin D. Lafferty, Andrew P. Dobson, Ryan F. Hechinger, Armand M. Kuris, Neo D. Martinez, John P. McLaughlin, Kim N. Mouritsen, Robert Poulin, Karsten Reise, Daniel B. Stouffer, David W. Thieltges, Richard J. Williams & Claus Dieter Zander
Comparative research on food web structure has revealed generalities in trophic organization, produced simple models, and allowed assessment of robustness to species loss. These studies have mostly focused on free-living species. Recent research has suggested that inclusion of parasites alters structure. We assess whether such changes in network structure result from unique roles and traits of parasites or from changes to diversity and complexity. We analyzed seven highly resolved food webs that include metazoan parasite...

Data from: Severe inbreeding depression and no evidence of purging in an extremely inbred wild species - the Chatham Island black robin

Euan S. Kennedy, Catherine E. Grueber, Richard P. Duncan & Ian G. Jamieson
Although evidence of inbreeding depression in wild populations is well established, the impact of genetic purging in the wild remains controversial. The contrasting effects of inbreeding depression, fixation of deleterious alleles by genetic drift and the purging of deleterious alleles via natural selection mean that predicting fitness outcomes in populations subjected to prolonged bottlenecks is not straightforward. We report results from a long-term pedigree study of arguably the world's most inbred wild species of bird:...

Data from: Parallel tagged next-generation sequencing on pooled samples – a new approach for population genetics in ecology and conservation

Monika Zavodna, Catherine E. Grueber & Neil J. Gemmell
Next-generation sequencing (NGS) on pooled samples has already been broadly applied in human medical diagnostics and plant and animal breeding. However, thus far it has been only sparingly employed in ecology and conservation, where it may serve as a useful diagnostic tool for rapid assessment of species genetic diversity and structure at the population level. Here we undertake a comprehensive evaluation of the accuracy, practicality and limitations of parallel tagged amplicon NGS on pooled population...

Data from: The linking of plate tectonics and evolutionary divergences

Matthew J. Phillips, Timothy J. Page, Mark De Bruyn, Joel A. Huey, William F. Humphreys, Jane M. Hughes, Scott R. Santos, Daniel J. Schmidt & Jonathan M. Waters
It is exciting to be living at a time when the big questions in biology can be investigated using modern genetics and computing. Bauzà-Ribot et al. take on one of the fundamental drivers of biodiversity, the effect of continental drift in the formation of the world’s biota, employing next-generation sequencing of whole mitochondrial genomes and modern Bayesian relaxed molecular clock analysis. Bauzà-Ribot et al. conclude that vicariance via plate tectonics best explains the genetic divergence...

Data from: The significance of past interdrainage connectivity for studies of diversity, distribution and movement of freshwater-limited taxa within a catchment

Cecilia Carrea, Leigh V. Anderson, Dave Craw, Jonathan M. Waters & Christopher P. Burridge
Aim: Historical connectivity between drainages may represent an underappreciated contributor to the biodiversity within a catchment. First, we tested whether an isolated population of freshwater-limited galaxiids represents a contribution by past interdrainage connectivity to this system’s biodiversity, rather than reflecting intracatchment dispersal or speciation. Second, we sought to distinguish between possible geomorphic processes that could have allowed any past connectivity. Location: The Clutha and adjacent Southland region drainages on the South Island of New Zealand....

Data from: Genetic drift outweighs natural selection at toll-like receptor (TLR) immunity loci in a reintroduced population of a threatened species

Catherine E. Grueber, Graham P. Wallis & Ian G. Jamieson
During population establishment, genetic drift can be the key driver of changes in genetic diversity, particularly while the population is small. However, natural selection can also play a role in shaping diversity at functionally important loci. We used a well-studied, re-introduced population of the threatened Stewart Island robin (N = 722 pedigreed individuals) to determine whether selection shaped genetic diversity at innate immunity toll-like receptor (TLR) genes, over a 9-year period of population growth following...

Data from: Weak evidence for anticipatory parental effects in plants and animals

Tobias Uller, Shinichi Nakagawa & Sinead English
The evolution of adaptive phenotypic plasticity relies on the presence of cues that enable organisms to adjust their phenotype to match local conditions. Although mostly studied with respect to nonsocial cues, it is also possible that parents transmit information about the environment to their offspring. Such ‘anticipatory parental effects’ or ‘adaptive transgenerational plasticity’ can have important consequences for the dynamics and adaptive potential of populations in heterogeneous environments. Yet, it remains unknown how widespread this...

Data from: Delineating the roles of males and females in sperm competition

Jonathan P. Evans, Patrice Rosengrave, Clelia Gasparini & Neil J. Gemmell
Disentangling the relative roles of males, females and their interactive effects on competitive fertilization success remains a challenge in sperm competition. In this study, we apply a novel experimental framework to an ideally suited externally fertilizing model system in order to delineate these roles. We focus on the chinook salmon, Oncorhynchus tshawytscha, a species in which ovarian fluid (OF) has been implicated as a potential arbiter of cryptic female choice for genetically compatible mates. We...

Data from: Extensive variation at MHC DRB in the New Zealand sea lion (Phocarctos hookeri) provides evidence for balancing selection

Amy J. Osborne, Monika Zavodna, B. L. Chilvers, Bruce C. Robertson, Sandra S. Negro, Martin A. Kennedy & Neil J. Gemmell
Marine mammals are often reported to possess reduced variation of major histocompatibility complex (MHC) genes compared with their terrestrial counterparts. We evaluated diversity at two MHC class II B genes, DQB and DRB, in the New Zealand sea lion (Phocarctos hookeri, NZSL) a species that has suffered high mortality owing to bacterial epizootics, using Sanger sequencing and haplotype reconstruction, together with next-generation sequencing. Despite this species’ prolonged history of small population size and highly restricted...

Data from: Inbreeding influences within-brood heterozygosity-fitness correlations (HFCs) in an isolated passerine population

Sheena M. Townsend & Ian G. Jamieson
Molecular estimates of inbreeding may be made using genetic markers such as microsatellites, however the interpretation of resulting heterozygosity-fitness correlations (HFCs) with respect to inbreeding depression is not straightforward. We investigated the relationship between pedigree-determined inbreeding coefficients (f) and HFCs in a closely monitored, reintroduced population of Stewart Island robins (Petroica australis rakiura) on Ulva Island, New Zealand. Using a full sibling design, we focused on differences in juvenile survival associated specifically with individual sibling...

Registration Year

  • 2013

Resource Types

  • Dataset


  • University of Otago
  • Department of Conservation
  • Swiss Institute of Bioinformatics
  • Estación Biológica de Doñana
  • Bangor University
  • University of Hamburg
  • Princeton University
  • Western Australian Museum
  • Aarhus University
  • Santa Fe Institute