Jen A Middleton

Jen A Middleton
University of Western Australia | UWA · School of Agriculture and Environment

BSc Hons

About

15
Publications
3,750
Reads
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104
Citations
Citations since 2016
15 Research Items
104 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Introduction
My current research aims to improve management of aquatic ecosystems by combining traditional monitoring data with sequencing tools and biogeochemistry to understand anthropogenic impacts on freshwater ecosystem function.
Additional affiliations
March 2016 - present
University of Western Australia
Position
  • PhD Student
Education
February 2012 - November 2015
University of Western Australia
Field of study
  • Zoology & Conservation Biology

Publications

Publications (15)
Article
The development of early warning indicators that identify ecosystem stress is a priority for improving ecosystem management. As microbial communities respond rapidly to environmental disturbance, monitoring their composition could prove one such early indicator of environmental stress. We combined 16S rRNA gene sequencing of the seagrass root micro...
Preprint
Full-text available
Seagrasses and lucinid bivalves inhabit highly reduced sediments with elevated sulphide concentrations. Lucinids house symbiotic bacteria (Ca. Thiodiazotropha) capable of oxidising sediment sulphide, and their presence in sediments has been proposed to promote seagrass growth by decreasing otherwise phytotoxic sulphide levels. However, vast and pro...
Article
Soils in the riparian zone, the interface between terrestrial and aquatic ecosystems, may decrease anthropogenic nitrogen (N) loads to streams through microbial transformations (e.g., denitrification). However, the ecological functioning of riparian zones is often compromised due to degraded conditions (e.g. vegetation clearing). Here we compare th...
Article
Full-text available
Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low a...
Article
Full-text available
Seagrasses are globally recognized as bioindicators of marine eutrophication and contamination. Seagrasses also harbor a distinct root microbial community that largely reflects the conditions of the surrounding environment as well as the condition of the seagrass. Hence monitoring changes in the root microbial community could act as an additional b...
Article
Full-text available
The relationship between detritivore diversity and decomposition can provide information on how biogeochemical cycles are affected by ongoing rates of extinction, but such evidence has come mostly from local studies and microcosm experiments. We conducted a globally distributed experiment (38 streams across 23 countries in 6 continents) using stand...
Article
Full-text available
Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low a...
Article
Seagrasses and lucinid bivalves inhabit highly reduced sediments with elevated sulphide concentrations. Lucinids house symbiotic bacteria (Ca. Thiodiazotropha) capable of oxidising sediment sulphide, and their presence in sediments has been proposed to promote seagrass growth by decreasing otherwise phytotoxic sulphide levels. However, vast and pro...
Article
Full-text available
Freshwater ecosystems play a key role in shaping the global carbon cycle and maintaining the ecological balance that sustains biodiversity worldwide. Surficial water bodies are often interconnected with groundwater, forming a physical continuum, and their interaction has been reported as a crucial driver for organic matter (OM) inputs in groundwate...
Article
The degradation of streams caused by urbanization tends to follow predictable patterns; however, there is a growing appreciation for heterogeneity in stream response to urbanization due to the local geoclimatic context. Furthermore, there is building evidence that streams in mildly sloped, permeable landscapes respond uncharacteristically to urban...

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Projects

Projects (4)
Project
Our research is focussed on developing a better mechanistic understanding of the role of dissolved organic matter (DOM) in a range of terrestrial and aquatic settings, which are mainly oligotrophic.
Project
Our goal is gathering all published information in as many languages as possible on in order to produce an open access database that facilitate future research in subterranean aquatic environments. Data will be gather for all groups of animals. The geographical scope is global, and it covers all types of so-called subterranean habitats ranging from freshwater and marine caves to hyporheic and interstitial environments. The project is part of the MSCA-IF-2016 "ANCAVE: Anchialine caves to understand evolutionary processes" granted to Alejandro Martinez and hosted by Diego Fontaneto (IRSA-CNR, Verbania).
Project
We are conducting multiple studies to investigate the important drivers of stream health in the flat sandy landscape of Perth, Western Australia. The project will reveal the importance of catchment-scale processes, such as flow (impervious cover), versus local-scale processes such as riparian condition to stream health. These findings will enable managers to focus on repairing aspects of the landscape that are most influential. We are also building guidelines and fact sheets to assist living stream design.