J.A. Sinclair results 54
· Newest (Page 1/3, per page 25)
Author: J.A. Sinclair ×Clear All Filters
Search Results
The discovery of a genetically distinct subpopulation of Haast tokoeka (Southern brown kiwi, Apteryx australis ‘Haast’)NARA Subscribed
The Haast tokoeka ( Apteryx australis ‘Haast’) is a threatened evolutionarily significant unit (ESU) of tokoeka or southern brown kiwi in Aotearoa New Zealand. In this study, we investigated the genetic relationships of a small newly discovered population of tokoeka located at Junction Hill near Haast, which is geographically isolated from other tokoeka populations. Using pin feathers collected from five individuals at Junctio...
Fission‐Fusion Group Dynamics and Cooperative Hunting Stabilise Social Carnivore PopulationsNARA Subscribed
Theory suggests that large social groups of carnivores should be unsustainable, due to reduced foraging efficiency because of overlapping perception radii. Using Serengeti lions as a case study, we apply behaviourally based foraging models to show that fragmentation of social groups into smaller subgroups or mutual cooperation during hunting are both plausible hypothetical mechanisms capable of sustaining larger lion prides. D...
Ecological but Not Biological Traits of European Riverine Invertebrates Respond Consistently to Anthropogenic ImpactsNARA Subscribed
Aim To determine which riverine invertebrate traits respond consistently to anthropogenic impacts across multiple biogeographic regions. Location Europe. Time Period 1981–2021. Major Taxa Studied Riverine invertebrates. Methods We compiled a database of riverine invertebrate community time series for 673 sites across six European countries spanning six freshwater ecoregions. We compared trait responses to anthropogenic impacts...
Deficiency of the mitochondrial ribosomal subunit, MRPL50, causes autosomal recessive syndromic premature ovarian insufficiencyNARA Subscribed
Premature ovarian insufficiency (POI) is a common cause of infertility in women, characterised by amenorrhea and elevated FSH under the age of 40 years. In some cases, POI is syndromic in association with other features such as sensorineural hearing loss in Perrault syndrome. POI is a heterogeneous disease with over 80 causative genes known so far; however, these explain only a minority of cases. Using whole-exome sequencing (...
The Australian National Rabbit Database: 50 yr of population monitoring of an invasive speciesNARA Subscribed
With ongoing introductions into Australia since the 1700s, the European rabbit ( Oryctolagus cuniculus ) has become one of the most widely distributed and abundant vertebrate pests, adversely impacting Australia's biodiversity and agroeconomy. To understand the population and range dynamics of the species and its impacts better, occurrence and abundance data have been collected by researchers and citizens from sites covering a...
Seeds in motion: Genetic assignment and hydrodynamic models demonstrate concordant patterns of seagrass dispersalNARA Subscribed
Movement is fundamental to the ecology and evolutionary dynamics within species. Understanding movement through seed dispersal in the marine environment can be difficult due to the high spatial and temporal variability of ocean currents. We employed a mutually enriching approach of population genetic assignment procedures and dispersal predictions from a hydrodynamic model to overcome this difficulty and quantify the movement...
Can we predict ectotherm responses to climate change using thermal performance curves and body temperatures?NARA Subscribed
Thermal performance curves ( TPC s), which quantify how an ectotherm's body temperature ( T b ) affects its performance or fitness, are often used in an attempt to predict organismal responses to climate change. Here, we examine the key – but often biologically unreasonable – assumptions underlying this approach; for example, that physiology and thermal regimes are invariant over ontogeny, space and time, and also that TPC s a...
Testing the generality of above‐ground biomass allometry across plant functional types at the continent scaleNARA Subscribed
Accurate ground‐based estimation of the carbon stored in terrestrial ecosystems is critical to quantifying the global carbon budget. Allometric models provide cost‐effective methods for biomass prediction. But do such models vary with ecoregion or plant functional type? We compiled 15 054 measurements of individual tree or shrub biomass from across Australia to examine the generality of allometric models for above‐ground bioma...