Professor Dustin Marshall


Professor Dustin Marshall is an Australian Research Fellow and head of the Marine Evolutionary Ecology Group in the School of Biological Sciences, Monash University.

Prior to working at Monash University, Dustin was at the University of Queensland, after a post-doctorate at the University of New South Wales and brief research stints at the Oregon Institute of Marine Biology.

Dustin is an editor of three journals — Ecology Letters, Functional Ecology and Evolution — and Deputy Editor-in-Chief of Oikos.

Dustin is a member of the Scientific Advisory Committee to the Victorian Government, Australia.

Dustin has published more than 100 scientific publications.

Research interests

I am interested in variation, be it genetic or phenotypic, and how that variation affects the evolution and ecology of marine organisms.

My original research focus was on marine life-histories, specifically how phenotypic links among life-history stages affect the population dynamics of marine populations.

Since then, my interests have spread to include using quantitative genetics approaches to understand the limits of adaptation in marine organisms and the evolution of life histories.

I’ve become interested in how evolutionary processes affect the dynamics of marine communities as well how marine communities function more generally.

I think there are some unifying themes in our apparently disparate research programs, but I think it will take a few years for these threads to be drawn together. One thing that does unify the program already however is the study system — we focus almost entirely in sessile marine invertebrates. Specifically, we work on ‘fouling’ organisms, a term that covers the critters that grow on man-made structures in temperate coastal regions. This system is not particularly glamorous but is extremely tractable for asking ecological and evolutionary questions.

If you are interested in joining the lab, please email me.

Monash University researcher profile – Prof Dustin Marshall

Google Scholar profile — Dustin Marshall


Dr Keyne Monro (post-doctoral research fellow)

KeyneThumbnail600x600pxMy research interests are general questions about microevolutionary processes such as selection and adaptation, and the evolutionary ecology of benthic marine organisms.

Monash University researcher profile – Dr Keyne Monro

Dr Robin Svensson (post-doctoral research fellow)

RobinThumbnail600x600pxMy main research interests are invasion biology, ecological disturbance and chemical ecology.

Much of my work has focused on tests of well-known hypotheses in these areas, such as the Intermediate Disturbance Hypothesis, the Dynamic Equilibrium Model and the Novel Weapons Hypothesis.

I primarily conduct manipulative field experiments in marine sessile systems, but I have also worked with bacterial communities and mathematical modelling.

 Google Scholar profile — J Robin Svennson

Rolanda Lange (post-doctoral research fellow)

RolandaLangeThumbnail2015_300x300pxEnvironmental predictability, local adaptation, and phenotypic plasticity regulate connectivity in marine environments, which are often dominated by sessile organisms which propagate by planktonic larvae.

Both local adaptation and trans-generational plasticity can reduce an organisms ability to conquer novel habitats it is maladapted to.

I aim to understand the interplay of mechanisms that enable or hinder organisms to conquer new environments.

Marcelo Lagos (PhD student)

MarceloThumbnail600x600pxMy principal interests are: The eco-physiology of intertidal animals, which are the specifics traits that allow them to live in this hostile habitat; and the dynamics of non-indigenous invasive species from a community and evolutionary perspective.

Here my question is how their eco-physiological characteristics can determine their invasive abilities?

Theodore Chang (PhD student)

My broad interest is in community ecology and marine invertebrate zoology.

My project combines these interests and focuses on studying the variation of marine hard-bottom invertebrate assemblages.

In particular, I try to answer the question: are these assemblages historically contingent or environmentally deterministic?

Amanda Petterson (PhD student)

I am interested in life-history theory, particularly the evolution of offspring size.

The allocation of maternal energy reserves to different reproductive strategies can pose significant consequences for both the mother and offspring.

My project integrates life-history theory with metabolic scaling to explain offspring size-performance relationships, investigating the costs of reproduction and estimate selection on offspring size under different environments.

Karin Svanfeldt (PhD student)

KarinThumbnail600x600pxPartial mortality is common in many colonial organisms.  The question is when and why some modules of a colony die while others prosper.

Known for modular plants is that they use partial mortality as a way of recycling nutrients from less effective leaves (modules) to more profitable ones, which makes leaf lifespan possible to predetermine. Is a similar scenario also true for colonial marine invertebrates? In that case, can we predict at what time a particular zooid in a colony will die based on simple life history and environmental cues?

To answer these questions, I am estimating the isolated life history traits of the colonial marine bryozoan Watersipora subtorquata during laboratory trials, as well as monitoring the life spans of zooids planted in the field manipulated to various environments.

Hayley Cameron (PhD student)

Broadly, I am interested in the evolution of life-history strategies in marine invertebrates and seaweeds.

In particular, I am interested in the links between maternal phenotype, offspring size and offspring fitness.

The primary aim of my PhD research program is to investigate correlations between maternal size and offspring size, focusing on two specific questions:

  1. Why larger mothers might produce larger offspring
  2. Whether larger mothers produce higher quality offspring

Colin Olito (PhD student)

ColinThumbnail600x600pxI study the metabolic costs of reproduction and the evolution of spawning strategies in externally fertilizing marine invertebrates with an emphasis on the the challenges associated with sperm dispersal in the sea.

Evatt Chirgwin (PhD student, starting mid-2015)

Annie Guillaume (Research Assistant)

AnnieI am interested in the effects of parental environment on offspring performance, particularly the use of marine invertebrates to investigate such effects.

For my honours, I manipulated both adult and offspring thermal environments to determine maternal and paternal effects on fertilisation and larval success in the marine polychaete Galeolaria caespitosa.

I am currently working on Ciona intestinalis to determine how changes in sperm temperatures alter offspring survival and performance.

Henry Wooten (Research Assistant)

HenryThumbnail300x300pxPrevious to joining the MEEG laboratory, I completed a Masters at The University of Melbourne looking at the resilience of intertidal communities in South-Eastern Australia.

Currently, I am working with Dr Robin Svensson, investigating the ecology of marine sessile communities within Port Phillip Bay.