Restoration Ecologist - Dr. Adam Cross BSc PhD (W.Aust)
Dr
Adam Cross holding a sample of the rare carnivorous plant,
Aldrovanda vesiculosa,
in the Kimberley.
Introduction
Dr Adam Cross is a Research Fellow at the Department
of Environment and Agriculture, Curtin University. He has worked as a
Restoration Ecologist since completing a Ph.D. in Botany at the University
of Western Australia in 2014, engaging in multidisciplinary research with
numerous collaborators to understand the ecological limitations of hostile
mine wastes to the establishment of native plant communities. The primary
focus of this research to date has been the rehabilitation of tailings, the
fine-particulate residue wastes of ore processing. Other research interests
include community ecology, seed biology, the conservation and ecology of
freshwater aquatic ecosystems and carnivorous plants.
Adam is an ecologist with a strong research
background and a passion for the natural world. He has authored nearly 60
scientific papers, books and book chapters, and has studied plants and
ecosystems on every continent except Antarctica. His current studies focus
on the ecological restoration of degraded landscapes, with research
interests also including carnivorous plants and the drivers of community
resilience to environmental change. His work focuses
primarily on how the ecology of species and communities reflect and respond
to changes in environmental factors such as soils and climate, with a strong
research background in seed biology and plant community ecology.
A recipient of the Research
Fellowship in Restoration Ecology at Curtin University, Adam is Science
Director for global restoration organisation the EcoHealth Network, and
Restoration Manager for Gelganyem Limited, an indigenous trust aspiring to
return ecologically and culturally resilient landscapes to the Traditional
Owners of the East Kimberley region in Western Australia.
Dr Adam Cross is a
supervisor at Curtin University's ARC Centre for Mining Restoration, a
university lecturer and researcher, and the world authority on the
carnivorous plant species Aldrovanda vesiculosa and Cephalotus
follicularis.
Adam has pursued a love of carnivorous plants since the age of six, and is
an internationally-renowned authority on their ecology and conservation. His
passion for their preservation has led to involvement in the conservation
assessment and listing of over 250 species for the International Union for
the Conservation of Nature, and he has published two monographs on iconic
threatened species (Aldrovanda vesiculosa and Cephalotus follicularis). He
also has strong research interests in seed biology, community ecology and
phytosociology, freshwater aquatic ecosystems, and conservation biology.
Adam has presented at numerous conferences around the world, and brings
science into the public discussion through publication of popular science
articles, involvement in community conservation groups Cambridge Coastcare
Inc. and Project Numbat Inc., and regular presentations for local wildflower
and naturalist societies. He has a passion for teaching, and coordinates and
lectures a third-year restoration ecology unit at Curtin University.
What is a Carnivorous
Plant?
Drosera glanduligera,
Pimpernel Sundew
Carnivorous plants are predatory flowering plants that kill animals
in order to derive nutrition from their bodies. They share three
attributes that operate together and separate them from other
plants.
Carnivorous plants:
Capture
and kill prey
Have a
mechanism to facilitate digestion of the prey
Derive a
significant benefit from nutrients assimilated from the prey
To put it in
more human terms, carnivorous plants eat things like insects, spiders,
crustaceans and other small soil and water-living invertebrates and
protozoans, lizards, mice, rats, and other small vertebrates. Carnivorous
plants pull off this trick using specialized leaves that act as traps. Many
traps lure prey with bright colors, extra-floral nectaries, guide hairs,
and/or leaf extensions. Once caught and killed, the prey is digested by the
plant and/or partner organisms. The plant then absorbs the nutrients made
available from the corpse. Most carnivorous plants will grow without
consuming prey but they grow much faster and reproduce much better with
nutrients derived from their prey.
Common to
all carnivorous plants is a lack of nutriment in the environments in which
they live. Through time, these plants have evolved the ability to trap prey
and extract the nutrients they need to sustain growth and reproductive
function and as a result, five different trapping mechanisms have evolved:
Adam received his PhD in Botany from the University of Western
Australia (2011 - 2014).
Adam obtained is BSc with First
Class Honours in Conservation Biology from University of Western Australia
2007 - 2011
He went to Shenton College where he was
Dux of School, Biology, in 2005 & 2006.
Experiences
& Opportunities
Since completing his PhD
Adam has worked as a Restoration Ecologist, developing methods to
improve the establishment of native plant communities on
ecologically challenging materials such as mine tailings. Adam has
undertaken site research in collaboration with many of Australia's
biggest mining companies, and in particular has been the principal
researcher on a restoration research project with Karara Mining
Limited for the last five years. His research provides practical,
achievable and cost-effective restoration solutions, and is
assisting industry to meet and exceed their regulatory closure
commitments.
Did You Know?
1 May 2019 - New critically endangered carnivorous plants
discovered
Centre for Mine Site Restoration [CMSR] researchers have
discovered a new population of a critically endangered
aquatic carnivorous plant in Western Australia’s remote
Kimberley, following a 10-year search of the region.
During a recent botanical expedition to the northern
Kimberley, several thousand ‘aquatic venus flytrap’ plants,
Aldrovanda vesiculosa, were found growing in a billabong on
Theda Station, located east of the Mitchell Plateau,
supported by Dunkeld Pastoral.
Dr Adam Cross and Honours student Thilo Krueger, from the
ARC Centre for Mine Site Restoration in Curtin’s School of
Molecular and Life Sciences, have each spent almost a decade
searching swamps and billabongs throughout northern
Australia for the critically endangered species and other
carnivorous plants.
Dr Cross, who wrote a book about the plant in 2012, said the
discovery of a new population in WA’s remote Kimberley
region was a dream come true.
Aldrovanda vesiculosa
“When I first saw it, I thought it was just another common
species that has similar whorls of leaves, but when I got
closer and saw the traps at the end of the leaves, I
couldn’t believe my eyes,” Dr Cross said.
“This is the first time this species has been found in the
Kimberley for more than 20 years. The only other known
population from Western Australia is more than 2,000
kilometres away near Esperance in the State’s south, where a
small population of only a few dozen plants was discovered
in 2007.
“This new location in the remote northern Kimberley is one
of the largest populations ever discovered in Australia, in
an area where habitat is still relatively pristine. This
discovery gives us hope that northern Australia is still a
stronghold for the species in the face of its continuing
global decline.”
Captivated by the uniqueness of the species, he based his
honours project around the plant in 2009 and even published
a book about the flytrap in 2012.
Mr Krueger, who has moved from Germany to study at Curtin
University in Western Australia, said he was ecstatic the
pair’s decade-long search had resulted in a new discovery.
“Adam was just looking at me with this look of complete
amazement and I immediately knew he had found something
very, very exciting,” Mr Krueger said.
“Although it was once widespread around the world, it is now
considered critically endangered. Habitat loss and changes
to water quality have seen the species become extinct in up
to 30 countries, so the fact that we have found several
thousand plants in Western Australia is significant.” The
only other population known in Western Australia consists of
a few dozen plants and is located in Esperance, 2000
kilometres away from the station where the pair came across
the hotspot.
The species produces unique underwater snapping traps to
capture and digest small insect prey, which explains its
description as an ‘aquatic venus flytrap’.
A critically endangered species, Aldrovanda vesiculosa is
currently only located in less than 20 known locations
spread across four continents.
Traditionally reproducing through seeds, Dr Cross said, the
species had slowly moved towards asexually reproducing
through cloning, a form of reproduction which explained the
existence of flytrap hotspots in such isolated parts of the
planet.
According to Dr Cross, the plants ended up mixing with bird
feed and being transported across the world by water birds,
which then created flytrap population hotspots in isolated
parts of the globe.
However, with a decline in wetlands and water birds around
the world, he believed the plant was lacking the medium to
move around.
In a bid to test whether flytrap populations were travelling
across the globe, Dr Cross said the team at Curtin
University were planning to undertake a genetic study to
test whether the Kimberley population was genetically
similar to those in other parts of Australia or if, instead,
it was related to those in Japan and Southeast Asia.
"We are looking at a genetic study to test whether this
population represents some evidence that the species are
moving across the planet," he said.
Whether they are or not, Dr Cross said the research
highlighted the importance of Australia as a biodiversity
hotspot.
"We all understand that Australia is an incredible place for
biodiversity and the Kimberley is one of the most biodiverse
places in Australia," he said.
This incredible carnivore,
known for trapping aquatic prey between jaw-like lobes that
dramatically snap shut when triggered, is related to the
famous Venus Flytrap and employs one of the fastest movement
responses known in the plant kingdom.
Not only arthropods are caught in its deadly jaws, but even
small vertebrates including tadpoles and fish fry.
(Source:
Cross Section Ecological)
Aldrovanda vesiculosa is an aquatic carnivore very
closely related to the Venus flytrap and Drosera sundews.
This plant traps planktonic crustaceans.
(Source:
Carnivorous Plants)
Editor, Journal of the Royal Society of Western Australia (RSWA)
President, Project Numbat Inc.
Committee Member, Cambridge Coastcare Inc.
Certified Ecological Restoration Practitioner, Society for Ecological
Restoration
Associate Member, Closure Planning Practitioners Association
Member, Society for Ecological Restoration (Australasian Branch)
Member, International Network for Seed-based Restoration
Specialist Assessor and Member, International Union for the Conservation of
Nature (IUCN) Species Survival Commission (SSC) Carnivorous Plant Specialist
Group
Member, IUCN SSC Freshwater Plant Specialist Group
2020 - Adam was
one of four Curtin University researchers to receive a prestigious Western
Australia 2020 Young Tall Poppy Science Award.
2019 - Dr. Adam Cross awarded the 'Woodside Early Career
Scientist of the Year' at the Premier’s Science Awards
CMSR Research Fellow Dr. Adam Cross was awarded the 'Woodside Early Career
Scientist of the Year' at the Premier’s Science Awards! The award is
wonderful recognition of Adam’s work in restoration and shines the spotlight
on the importance and significance of restoration research projects in
globally.
“Dr Cross is already an internationally renowned expert on carnivorous
plants and his research is working to rehabilitate mining landscapes into
health ecosystems, offering Australia’s mining industry evidence-based
outcomes to meet their regulatory requirements on landforms.” Curtin
University Deputy Vice-Chancellor Research Professor Chris Moran said the
annual awards showcased the impressive leadership and achievements of WA’s
science community.
“The Premier’s Science Awards celebrate research and engagement in science,
technology, engineering and mathematics and I am delighted that Curtin
researchers continue to be recognised among the State’s finest contributors
to the field,” Professor Moran said. “Professor Bland and Dr Cross are
making their mark on the world stage, inspiring the next generation of
scientists to consider the exciting opportunities a career in STEM can
offer.”
The Premier’s Science Awards recognise and celebrate the achievements of the
Western Australian science community during National Science Week.
The awards cover all fields of science, including natural, medical, applied
and technological science, engineering and mathematics.(Source: ARC)
A young Perth
ecologist and carnivorous plant expert working to restore billions of years'
worth of evolution in WA's desolate mine-scapes was awarded early career
scientist of the year with a $10,000 prize at the prestigious Premier's
science awards.
2019 -
Recognition, Top Five Media Communicators for the Faculty of Science and
Engineering, Curtin University Research and Engagement Awards
2019 - Finalist, STEM Early
Career Researcher, Curtin University Research and Engagement Awards
2018 - Finalist, Woodside Early
Career Scientist of the Year, Western Australian Premier's Science Awards
2018 - Winner, Fresh Science
Western Australia
2014 - Winner, Perth Zoo Prize
for Conservation Research
2006 - Dux of School, Biology,
Shenton College, Shenton Park, Perth
2005 - Dux of School, Biology,
Shenton College, Shenton Park, Perth
Carnivorous
Plants: Research Game of Snakes & Ladders
Primary
Middle
Secondary
Australian
Curriculum General Capability: Critical & Creative Thinking
Australian
Curriculum General Capability: Literacy
1. In groups of 3 - 4 students, you are to read and watch
the following items. Write down as many facts and figures as you can as you
will be writing up 20 questions [and their answers].
2. You are going to create a game
of Snakes n Ladders. For the complete instructions, go
here.
You are to convert the
old game of Snakes and Ladders into a new and exciting game based on the
knowledge of Carnivorous Plants. The game will still have die and played by
FOUR people but with a difference - you also need to know a lot about
Carnivorous Plants!
3.
Create your own Snakes and Ladders grid with 100 squares [10 x 10]
- ONE grid/four players.
Look at the following
example to get an idea of the number of Snakes and Ladders usually put onto
the game. Be as creative as possible with your drawings of your snakes
[or you might want to use Carnivorous Plants instead - as
long as you can see easily the top and bottom of the plant].
As you can see
from the following examples there are differences in the number and size of
both the snakes and ladders. It is up to you to create your own unique game.
4. Rules:
Each person throws two die to advance along the board but....
You can avoid slipping down
the snake if you know the answer to one question about
Carnivorous Plants and you can go up the ladder if you know the answer to
two questions about these plants. Otherwise you are to
stay where you are until the next throw and a new lot of questions.
5. Create your list of 20
questions about Carnivorous Plants. In turn, ask your question of the next
person in your group and play the game until one person gets to the end or
finish of the board game.
Little
Shop of Horrors - "Feed Me Seymour" to "Save Me Seymour"
Middle Secondary
Australian
Curriculum General Capability: Critical & Creative Thinking
Australian
Curriculum General Capability: Literacy
Australian
Curriculum General Capability: ICT Capability
1. In the
Little Shop of Horrors, the carnivorous plant, Audrey II, needs to have
human blood to survive. Here is the song where Audrey asks Seymour to feed
him. Look and listen to the lyrics from this video.
[SEYMOUR]
Sudden changes surround me
Lady Luck came and found me
Thanks a million for making the magic you do
Thanks to you, sweet petunia
Mushnik's taken a junior
And someday when I own this whole shop
I'll remember I owe it to you
(spoken)
Who cares if I've been on the anemic side these past few weeks? So
what if I've had a few dizzy spells?
A little light-headedness?
It's been worth it, old pal
Twoey, I'm a little hungry. I'm gonna go down to Schmendrick's and
get a bite to eat
I'll see ya later
[AUDREY II, spoken]
Feed me
[SEYMOUR, spoken]
I beg your pardon?
[AUDREY II, spoken]
Feed me!
[SEYMOUR, spoken]
Tuey! Tuey! You talked! You opened your... trap, your thing, and you
said-
[AUDREY II, spoken]
Feed me, Krelborn, feed me now!
[SEYMOUR, spoken]
I'll run down to the market and pick up some nice chopped sirloin
[AUDREY II, spoken]
Must be blood
[SEYMOUR, spoken]
Tuey, that's disgusting
[AUDREY II, spoken]
Must be fresh!
[SEYMOUR, spoken]
I don't wanna hear this!
[AUDREY II]
Feed me
Feed me
Feed me [SEYMOUR, spoken]
Does it have to be human?
Does it have to be mine?
Where am I s'posed to get it?
[AUDREY II]
Feed me, Seymour
Feed me all night long
That's right, boy!
You can do it!
Feed me, Seymour
Feed me all night long
'Cause if you feed me, Seymour
I can grow up big and strong
[SEYMOUR, spoken]
You eat blood, Audrey II, let's face it
How am I supposed to keep on feeding you, kill people?
[AUDREY II, spoken]
I'll make it worth your while
[SEYMOUR, spoken]
Look, you're a plant an inanimate object
[AUDREY II, spoken]
Does this look inanimate to you, punk?
If I can talk and I can move
Who says I can't do anything I want
[SEYMOUR, spoken]
Like, what?
[AUDREY II, spoken]
Like deliver, pal
Like see you get everything your sickly, greasy heart desires!
(sung)
Would you like a Cadillac car?
Or a guest shot on Jack Paar?
How about a date with Hedy Lamarr?
You gonna git it
Would you like to be a big wheel
Dinin' out for every meal?
I'm the plant that can make it all real
You gonna git it
I'm your genie, I'm your friend
I'm your willing slave
Take a chance, just feed me and
You know the kinda eats
The kinda red hot treats
The kinda sticky licky sweets
I crave
Come on, Seymour, don't be a putz
Trust me and your life will surely rival King Tut's
Show a little 'nitiative, work up some guts
And you'll git it
[SEYMOUR]
I don't know
I don't know
I have so
So many strong reservations
Should I go
And perform mutilations? [AUDREY II]
Come on, boy
Lighten up
Tell it to the marines
Cut the crap and bring on the meat!
My, my my
Uh huh? Heh, heh, heh
[AUDREY II, spoken]
Now let me see here, hmm...
(sung)
Think about a room at the Ritz
Wrapped in velvet, covered in glitz
A little nookie gonna clean up your zits
And you'll git it
[SEYMOUR]
Gee, I'd like a Harley machine
Toolin' around like I was James Dean [AUDREY II, spoken]
Now you're talkin'!
Yeah!
[SEYMOUR]
Makin' all the guys on the corner turn green!
[AUDREY II]
You gon' git it
If you wanna be profound
Then you really gotta justify
Take a breath and look around
A lot of folks deserve to die
[SEYMOUR, spoken]
Wait a minute, wait a minute!
That's not a very nice thing to say
I don't know anyone who deserves to be chopped up
And fed to a hungry plant
[AUDREY II, spoken]
Hmm... Sure ya do...
3. In a group of 3 - 4 students,
you are to use the same tune but change the lyrics
to "Save Me Seymour" in particular reference to Aldrovanda
vesiculosa
- the aquatic Venus Flytrap or the
Cephalotus,
the Albany Pitcher Plant. Each of these plants has
been studied by Dr Adam Cross in detail.
Australian
Curriculum General Capability:Critical and creative thinking
Australian
Curriculum General Capability: Ethical Understanding
Australian
Curriculum Cross Curriculum Priorities:
Aboriginal and Torres Strait Islander histories and cultures
Australian
Curriculum Cross Curriculum Priorities: Sustainability
Priority
Background
"A keen botanist and ecologist
since the age of six, Dr Cross now steps into the picture when WA mines near
the end of their lifespans. He is often left with the mammoth task of
rehabilitating completely destroyed moonscapes in a matter of five to ten
years - a process which would normally take nature millions of years - in a
bid to meet regulation requirements and restore WA's natural landscapes.
Mining means unearthing rock
particles that had been in the bedrock millions of years to the surface,
which can cause problems for species who have learned to adapt to a
different ground, and it's up to Dr Cross to use nature to figure out how to
accelerate rehabilitation.
In a process Dr Cross says
resembles "trying to terraform the moon or Mars", he uses chronosequences -
that is, similar ecological sites that represent different stages in land
formation - to study the aging process of the soil and apply it to mining
areas with similar characteristics.
But with upwards of 11,000 abandoned mine sites and about 200,000 abandoned
mining "features" across WA, it's a David and Goliath struggle.
"Every time a new mineral is
created, the waste product is completely different," he said.
"One site a hundred kilometres away from another site might have completely
different rock that results in a completely different land form, but also
has completely different plants and animals that have adapted to those.
"It's like trying to reinvent the wheel."
An optimist by nature, Dr Cross said the field had started to see small
success stories which had helped to tackle negativity in Australian
biodiversity and conservation circles and shift the focus of resource
industry giants towards land restoration."
1. Form groups of 4 students. You
are going to use the
Academic Controversy Strategy to tackle the problem of Mining
Restoration. Use Adam Cross' viewpoint as one and the other from the two
articles below.