A5074654051- Microbial Community Ecology and Physiology
- Environmental DNA in Biodiversity Studies
- Protist diversity and phylogeny
- Diatoms and Algae Research
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Aquatic Ecosystems and Phytoplankton Dynamics
- Isotope Analysis in Ecology
- Freshwater macroinvertebrate diversity and ecology
- Marine and coastal ecosystems
- Hydrology and Sediment Transport Processes
- Geochemistry and Elemental Analysis
- Fish Ecology and Management Studies
Cawthron Institute
2021-2024
University of Auckland
2021-2022
Victoria University of Wellington
2013-2014
Abstract Analyses of sedimentary DNA ( sed DNA) have increased exponentially over the last decade and hold great potential to study effects anthropogenic stressors on lake biota time. Herein, we synthesise literature that has applied a approach track historical changes in biodiversity response impacts, with an emphasis past c. 200 years. We identified following research themes are particular relevance: (1) eutrophication climate change as key drivers limnetic communities; (2) increasing...
Global demand for freshwater has led to unprecedented levels of water abstraction from riverine systems. This resulted in large alterations natural river flows. The deleterious impacts reduced flows on fish and macroinvertebrate abundances have been thoroughly investigated; contrast, there is a limited understanding the potential changes abundance nuisance benthic algal/cyanobacterial blooms. In New Zealand, Phormidium sp. blooms are common numerous rivers during summer low this study, an...
Opportunities to study community-level responses extreme natural pulse disturbances in unaltered ecosystems are rare. Lake sediment records that span thousands of years can contain well-resolved pulses, triggered by earthquakes. These palaeorecords provide a means repeated and processes resistance (insensitivity disturbance) ecological resilience (capacity regain structure, function process). In this study, sedimentary DNA was extracted from core Paringa (New Zealand) is situated near...
Lake sediments hold a wealth of information from past environments that is highly valuable for paleolimnological reconstructions. These studies increasingly apply modern molecular tools targeting sedimentary DNA (sedDNA). However, sediment core sampling can be logistically difficult, making immediate subsampling sedDNA challenging. Sediment cores are often refrigerated (4 °C) weeks or months before subsampling. We investigated the impact storage time on changes in (purified as cell lysate)...
<p>Opportunities to study and understand community level responses extreme natural pulse disturbances in unaltered ecosystems are rare. Lake sediment records that span thousands of years can contain well resolved pulses, triggered by earthquakes. These paleo-records provide a means study repeated pulse disturbance and the processes resistance (insensitivity disturbance)...