Aim The two species of ground parrots ( Pezoporus wallicus and P. flaviventris ) are morphologically and behaviourally similar, yet geographically disjunct and genetically distinct. We investigated the dynamics of divergence between the two species in the context of niche evolution across Australian platycercine parrots. Location Australia. Taxon Platyercine parrots. Methods We estimated climatic and habitat niche breadths for...

Sensitive and efficient monitoring of species’ distributions is crucial for understanding biodiversity and conserving species. Environmental DNA (eDNA) metabarcoding enables rapid detection of biological communities and its use is increasing in freshwater ecosystems. However, variations in eDNA sampling method may influence results. We compared anuran species richness estimates derived from two eDNA filtration strategies: (i)...

Identifying and analysing isolated populations is critical for conservation. Isolation can make populations vulnerable to local extinction due to increased genetic drift and inbreeding, both of which should leave imprints of decreased genome‐wide heterozygosity. While decreases in heterozygosity among populations are frequently investigated, fewer studies have analysed how heterozygosity varies among individuals, including whe...

The redlegged earth mite, Halotydeus destructor , is an economically important pest of winter field crops and pastures in Australia, and has evolved field resistance to pyrethroid chemicals through a polymorphism in the voltage-gated parasodium channel leading to knockdown resistance ( kdr) . In this study, we quantified the rate of reversion to susceptibility of partially resistant H. destructor populations under field condit...

Globally, urban expansion and climate change interact to threaten stream ecosystems and are accelerating the loss of aquatic biodiversity. Waterway managers urgently need tools to understand the potential combined impacts of urbanization and climate change and to identify effective mitigating management interventions for protecting freshwater biota. We address this challenge using the semi‐aquatic mammal the platypus ( Ornitho...

Understanding how invasive species respond to novel environments is limited by a lack of sensitivity and throughput in conventional biomonitoring methods. Arthropods in particular are often difficult to monitor due to their small size, rapid lifecycles, and/or visual similarities with co‐occurring species. This is true for the agromyzid leafminer fly, Liriomyza sativae , a global pest of vegetable and nursery industries that h...

Environmental DNA (eDNA) sampling can provide accurate, cost‐effective, landscape‐level data on species distributions. Previous studies have compared the sensitivity of eDNA sampling to traditional sampling methods for single species, but similar comparative studies on multispecies eDNA metabarcoding are rare. Using hierarchical site occupancy detection models, we examined whether key choices associated with eDNA metabarcoding...

Nations throughout the Indo‐Pacific region use pyrethroid insecticides to control Aedes aegypti , the mosquito vector of dengue, often without knowledge of pyrethroid resistance status of the pest or origin of resistance. Two mutations (V1016G + F1534C) in the sodium channel gene ( Vssc ) of Ae. aegypti modify ion channel function and cause target‐site resistance to pyrethroid insecticides, with a third mutation (S989P) having...

Many ecosystems around the world are rapidly deteriorating due to both local and global pressures, and perhaps none so precipitously as coral reefs. Management of coral reefs through maintenance (e.g., marine‐protected areas, catchment management to improve water quality), restoration, as well as global and national governmental agreements to reduce greenhouse gas emissions (e.g., the 2015 Paris Agreement) is critical for the...

Coastal ocean upwelling ecosystems generally represent the most productive large marine ecosystems of the world's oceans, in terms of both primary production rates and tonnages of exploitable fish produced. The Peruvian upwelling system, in particular, stands out as a major factor in world fish production. The Pacific trade winds have traditionally been considered to be the primary driving force for the upwelling system off Pe...