13 Works

Capturing the dynamics of small populations: A retrospective assessment using long-term data for an island reintroduction

Doug Armstrong, Elizabeth Parlato, Barbara Egli, Wendy Dimond, Åsa Berggren, Mhairi McCready, Kevin Parker & John Ewen
1. The art of population modelling is to incorporate factors essential for capturing a population’s dynamics while otherwise keeping the model as simple as possible. However, it is unclear how optimal model complexity should be assessed, and whether this optimal complexity has been affected by recent advances in modelling methodology. This issue is particularly relevant to small populations because they are subject to complex dynamics but inferences about those dynamics are often constrained by small...

Mixed mating in a multi-origin population suggests high potential for genetic rescue in North Island brown kiwi, Apteryx mantelli

Malin Undin
Reinforcement translocations are increasingly utilised in conservation with the goal of achieving genetic rescue. However, concerns regarding undesirable results, such as genetic homogenisation or replacement, are widespread. One factor influencing translocation outcomes is the rate at which the resident and the introduced individuals interbreed. Consequently, post-release mate choice is a key behaviour to consider in conservation planning. Here we studied mating, and its consequences for genomic admixture, in the North Island brown kiwi Apteryx mantelli...

Species-level coral bleaching data for Maldives and GBR

Paul Muir, Terence Done & David Aguirre
Response to coral bleaching for 7368 coral colonies exposed to similar levels of temperature stress at a similar depth of occurrence and similar subsequent mortality. Collected in situ following moderate thermal bleaching events in the GBR in 2002 and the Maldives in 2016. Data gives species, site, depth of occurence and bleaching response which was scored by tissue colour.

Climate and ice in the last glacial maximum explain patterns of isolation by distance inferred for alpine grasshoppers

David Carmelet-Rescan, Mary Morgan-Richards, Emily Koot & Steven Trewick
Aim: Cold-adapted species are likely to have had widespread ranges with greater connectivity of populations during the last glacial cycle. We sought evidence of this in the level and distribution of variation within one alpine insect species. Location: Southern Alps, New Zealand Taxon: The endemic, wingless, alpine grasshopper Sigaus australis (Orthoptera: Acrididae) Methods: The current fragmented alpine distribution of Sigaus australis was used to estimate its environmental envelope (niche) and this model was then used...

Temporal and sociocultural effects of human colonisation on native biodiversity: Filtering and rates of adaptation

Christophe Amiot, Christophe Amiot, Weihong Ji, Erle Ellis & Michael Anderson
Modern human societies have negatively impacted native species richness and their adaptive capacity on every continent, in clearly contrasting ways. We propose a general model to explain how the sequence, duration, and type of colonising society alter native species richness patterns through changes in evolutionary pressures. These changes cause different ‘filtering effects’ on native species, while simultaneously altering the capacity of surviving species to adapt to further anthropogenic pressures. This framework may better explain the...

Data from: Non-additive association analysis using proxy phenotypes identifies novel cattle sydromes

Edwardo Reynolds & Mathew Littlejohn
Mammalian species carry ~100 loss-of-function variants per individual, where ~1-5 of these impact essential genes and cause embryonic lethality or severe disease when homozygous. The functions of the remainder are more difficult to resolve, though are assumed to impact fitness in less manifest ways. Here, we present data behind one of the largest sequence-resolution screens of cattle to date, targeting discovery and validation of non-additive effects in 130,725 animals. We highlight six novel recessive loci...

Gaps in genetic knowledge affect conservation management of kiwi (Apteryx) species

Malin Undin, Isabel Castro, Simon Hills & Peter Lockhart
Worldwide, there is growing appreciation of the importance of integrating genetic information into conservation management. However, there are commonly occurring problems which impact on doing this successfully. This issue is well illustrated by kiwi Apteryx species. Like many endangered taxa, extant kiwi populations are small, fragmented and isolated, raising concerns of potential inbreeding depression. Accordingly, kiwi conservation includes discussion of genetic management and translocations. To date, kiwi taxa have been the subject of 41 genetic...

Male courtship reduces the risk of cannibalism in web-building spiders but varies in structure

Anne Wignall & Marie Herberstein
Male courtship serves multiple functions in addition to inducing females to accept them as a mate. In predatory species, male courtship can function to reduce the risk of sexual cannibalism. This is particularly important in web-building spiders in which males risk being mistaken for prey when they enter the female’s predatory trap – the web – in order to commence courtship. Male spiders generate vibrations by shuddering in the female’s web. Shudder vibrations can delay...

Analytic dataset informing modeling of winter species distributions of North American bat species

Sarah Olson, Meredith McClure, Catherine Haase, Carter Hranac, David Hayman, Brett Dickson, Liam McGuire, Daniel Crowley, Nathan Fuller, Cori Lausen & Raina Plowright
The fungal pathogen Pseudogymnoascus destructans and resultant white-nose syndrome (WNS) continues to advance across North America, infecting new bat populations, species, and hibernacula. Western North America hosts the highest bat diversity in the U.S. and Canada, yet little is known about hibernacula and hibernation behavior in this region. An improved understanding of where bats hibernate and the conditions that create suitable hibernacula is critical if land managers are to anticipate and address the conservation needs...

Male-biased sexual selection, but not sexual dichromatism, predicts speciation in birds

Justin Cally, Devi Stuart-Fox, Luke Holman, James Dale & Iliana Medina
Sexual selection is thought to shape phylogenetic diversity by affecting speciation or extinction rates. However, the net effect of sexual selection on diversification is hard to predict, because many of the hypothesised effects on speciation or extinction have opposing signs and uncertain magnitudes. Theoretical work also suggests that the net effect of sexual selection on diversification should depend strongly on ecological factors, though this prediction has seldom been tested. Here, we test whether variation in...

The influence of nutrient enrichment on riverine food web function and stability

Adam Canning & Russell Death
Nutrient enrichment of rivers and lakes has been increasing rapidly over the past few decades, primarily because of agricultural intensification. Although nutrient enrichment is known to drive excessive algal and microbial growth, which can directly and indirectly change the ecological community composition, the resulting changes in food web emergent properties are poorly understood. We used ecological network analysis (ENA) to examine the emergent properties of 12 riverine food webs across a nutrient enrichment gradient in...

Functional beta diversity of New Zealand fishes: characterising morphological turnover along depth and latitude gradients, with derivation of functional bioregions

Elisabeth Myers, David Eme, Libby Liggins, Euan Harvey, Clive Roberts & Marti Anderson
Changes in the functional structures of communities are rarely examined along multiple large-scale environmental gradients. Here, we describe patterns in functional beta diversity for New Zealand marine fishes vs depth and latitude, including broad-scale delineation of functional bioregions. We derived eight functional traits related to food acquisition and locomotion and calculated complementary indices of functional beta diversity for 144 species of marine ray-finned fishes occurring along large-scale depth (50 - 1200 m) and latitudinal gradients...

Sequence-based genome-wide association study of individual milk mid-infrared wavenumbers in mixed-breed dairy cattle

Kathryn Tiplady, Thomas Lopdell, Edwardo Reynolds, Richard Sherlock, Michael Keehan, Thomas Johnson, Jennie Pryce, Stephen Davis, Richard Spelman, Bevin Harris, Dorian Garrick & Mathew Littlejohn
Fourier-transform mid-infrared (FT-MIR) spectroscopy provides a high-throughput and inexpensive method for predicting milk composition and other novel traits from milk samples. Whilst there have been many genome-wide association studies (GWAS) conducted on FT-MIR predicted traits, there have been few GWAS for individual FT-MIR wavenumbers. Here we examine associations between genomic regions and individual FT-MIR wavenumber phenotypes within a population of 38,085 mixed-breed New Zealand dairy cattle with imputed whole-genome sequence. GWAS were conducted for each...

Registration Year

  • 2021
    13

Resource Types

  • Dataset
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Affiliations

  • Massey University
    13
  • Livestock Improvement Corporation
    2
  • Parker Conservation
    1
  • University of Melbourne
    1
  • Wildlife Conservation Society Canada
    1
  • La Trobe University
    1
  • Macquarie University
    1
  • Plant & Food Research
    1
  • Curtin University
    1
  • Montana State University
    1