Molecular Ecology,
Journal Year:
2023,
Volume and Issue:
32(15), P. 4118 - 4132
Published: May 30, 2023
Abstract
Advancements
in
environmental
DNA
(eDNA)
approaches
have
allowed
for
rapid
and
efficient
species
detections
diverse
environments.
Although
most
eDNA
research
is
focused
on
leveraging
genetic
diversity
to
identify
taxa,
some
recent
studies
explored
the
potential
these
detect
within‐species
variation,
allowing
population
assessments
abundance
estimates
from
samples.
However,
we
currently
lack
a
framework
outlining
key
considerations
specific
generating,
analysing
applying
data
two
purposes.
Here,
discuss
how
various
markers
differ
with
regard
information
detectability
samples
analysis
of
differs
common
tissue‐based
analyses.
We
then
outline
it
may
be
possible
obtain
absolute
by
detecting
intraspecific
variation
mixtures
under
multiple
scenarios.
also
major
causes
contributing
allele
detection
frequency
errors
data,
their
consequences
population‐level
analyses
bioinformatic
remove
erroneous
sequences.
This
review
summarizes
advances
required
harness
full
eDNA‐based
inform
questions
ecology,
evolutionary
biology
conservation
management.
Fisheries Science,
Journal Year:
2020,
Volume and Issue:
86(6), P. 939 - 970
Published: Sept. 15, 2020
Abstract
We
reviewed
the
current
methodology
and
practices
of
DNA
metabarcoding
approach
using
a
universal
PCR
primer
pair
MiFish,
which
co-amplifies
short
fragment
fish
(approx.
170
bp
from
mitochondrial
12S
rRNA
gene)
across
wide
variety
taxa.
This
method
has
mostly
been
applied
to
biodiversity
monitoring
environmental
(eDNA)
shed
and,
coupled
with
next-generation
sequencing
technologies,
enabled
massively
parallel
several
hundred
eDNA
samples
simultaneously.
Since
publication
its
technical
outline
in
2015,
this
widely
used
various
aquatic
environments
around
six
continents,
MiFish
primers
have
demonstrably
outperformed
other
competing
primers.
Here,
we
progress
over
last
5
years
highlight
some
case
studies
on
marine,
freshwater,
estuarine
communities.
Additionally,
discuss
applications
non-fish
organisms,
single-species
detection
systems,
quantitative
monitoring,
bulk
than
eDNA.
By
recognizing
strengths
limitations,
argue
that
is
useful
for
ecosystem
conservation
strategies
sustainable
use
fishery
resources
“ecosystem-based
management”
through
continuous
at
multiple
sites.
BioScience,
Journal Year:
2021,
Volume and Issue:
71(10), P. 1038 - 1062
Published: June 24, 2021
The
range
of
technologies
currently
used
in
biodiversity
conservation
is
staggering,
with
innovative
uses
often
adopted
from
other
disciplines
and
being
trialed
the
field.
We
provide
first
comprehensive
overview
current
(2020)
landscape
technology,
encompassing
for
monitoring
wildlife
habitats,
as
well
on-the-ground
management
(e.g.,
fighting
illegal
activities).
cover
both
established
(routinely
deployed
conservation,
backed
by
substantial
field
experience
scientific
literature)
novel
or
technology
applications
(typically
at
trial
stage,
only
recently
conservation),
providing
examples
types.
describe
that
deploy
sensors
are
fixed
portable,
attached
to
vehicles
(terrestrial,
aquatic,
airborne)
animals
(biologging),
complemented
a
section
on
tracking.
last
two
sections
actuators
computing
(including
web
platforms,
algorithms,
artificial
intelligence).
Ecology and Evolution,
Journal Year:
2021,
Volume and Issue:
11(9), P. 4803 - 4815
Published: March 18, 2021
Decades
of
environmental
DNA
(eDNA)
method
application,
spanning
a
wide
variety
taxa
and
habitats,
has
advanced
our
understanding
eDNA
underlined
its
value
as
tool
for
conservation
practitioners.
The
general
consensus
is
that
methods
are
more
accurate
cost-effective
than
traditional
survey
methods.
However,
they
formally
approved
just
few
species
globally
(e.g.,
Bighead
Carp,
Silver
Great
Crested
Newt).
We
conducted
meta-analysis
studies
directly
compare
with
surveys
to
evaluate
the
assertion
consistently
"better."Environmental
publications
multiple
or
single
macro-organism
detection
were
identified
using
Web
Science,
by
searching
"eDNA"
"environmental
DNA"
across
papers
published
between
1970
2020.
used,
focal
taxa,
habitats
surveyed,
quantitative
categorical
results
collated
analyzed
determine
whether
under
what
circumstances
outperforms
surveys.Results
show
cheaper,
sensitive,
detect
This
is,
however,
taxa-dependent,
amphibians
having
highest
potential
survey.
Perhaps
most
strikingly,
535
reviewed
49
quantified
probability
both
three
times
likely
give
qualitative
statements
performance.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
873, P. 162322 - 162322
Published: Feb. 18, 2023
Environmental
DNA
(eDNA)
is
the
fastest
growing
biomonitoring
tool
fuelled
by
two
key
features:
time
efficiency
and
sensitivity.
Technological
advancements
allow
rapid
biodiversity
detection
at
both
species
community
levels
with
increasing
accuracy.
Concurrently,
there
has
been
a
global
demand
to
standardise
eDNA
methods,
but
this
only
possible
an
in-depth
overview
of
technological
discussion
pros
cons
available
methods.
We
therefore
conducted
systematic
literature
review
407
peer-reviewed
papers
on
aquatic
published
between
2012
2021.
observed
gradual
increase
in
annual
number
publications
from
four
(2012)
28
(2018),
followed
growth
124
This
was
mirrored
tremendous
diversification
methods
all
aspects
workflow.
For
example,
freezing
applied
preserve
filter
samples,
whereas
we
recorded
12
different
preservation
2021
literature.
Despite
ongoing
standardisation
debate
community,
field
seemingly
moving
fast
opposite
direction
discuss
reasons
implications.
Moreover,
compiling
largest
PCR-primer
database
date,
provide
information
522
141
species-specific
metabarcoding
primers
targeting
wide
range
organisms.
works
as
user-friendly
'distillation'
primer
that
hitherto
scattered
across
hundreds
papers,
list
also
reflects
which
taxa
are
commonly
studied
technology
environments
such
fish
amphibians,
reveals
groups
corals,
plankton
algae
under-studied.
Efforts
improve
sampling
extraction
specificity
reference
databases
crucial
capture
these
ecologically
important
future
surveys.
In
rapidly
diversifying
field,
synthetises
procedures
can
guide
users
towards
best
practice.
Annual Review of Marine Science,
Journal Year:
2021,
Volume and Issue:
14(1), P. 161 - 185
Published: Aug. 5, 2021
Environmental
DNA
(eDNA)
is
genetic
material
that
has
been
shed
from
macroorganisms.
It
received
increased
attention
as
an
indirect
marker
for
biodiversity
monitoring.
This
article
reviews
the
current
status
of
eDNA
metabarcoding
(simultaneous
detection
multiple
species)
a
noninvasive
and
cost-effective
approach
monitoring
marine
fish
communities
discusses
prospects
this
growing
field.
coamplifies
short
fragments
across
wide
variety
taxa
and,
coupled
with
high-throughput
sequencing
technologies,
allows
massively
parallel
to
be
performed
simultaneously
dozens
hundreds
samples.
can
predict
species
richness
in
given
area,
detect
habitat
segregation
biogeographic
patterns
small
large
spatial
scales,
monitor
spatiotemporal
dynamics
communities.
In
addition,
it
anthropogenic
impact
on
through
evaluation
their
functional
diversity.
Recognizing
strengths
limitations
will
help
ensure
continuous
at
sites
useful
ecosystem
conservation
sustainable
use
fishery
resources,
possibly
contributing
achieving
targets
United
Nations'
Sustainable
Development
Goal
14
2030.
Oxford University Press eBooks,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Feb. 10, 2022
Abstract
Loss
of
biodiversity
is
among
the
greatest
problems
facing
world
today.
Conservation
and
Genomics
Populations
gives
a
comprehensive
overview
essential
background,
concepts,
tools
needed
to
understand
how
genetic
information
can
be
used
conserve
species
threatened
with
extinction,
manage
ecological
or
commercial
importance.
New
molecular
techniques,
statistical
methods,
computer
programs,
principles,
methods
are
becoming
increasingly
useful
in
conservation
biological
diversity.
Using
balance
data
theory,
coupled
basic
applied
research
examples,
this
book
examines
phenotypic
variation
natural
populations,
principles
mechanisms
evolutionary
change,
interpretation
from
these
conservation.
The
includes
examples
plants,
animals,
microbes
wild
captive
populations.
This
third
edition
has
been
thoroughly
revised
include
advances
genomics
contains
new
chapters
on
population
genomics,
monitoring,
genetics
practice,
as
well
sections
climate
emerging
diseases,
metagenomics,
more.
More
than
one-third
references
were
published
after
previous
edition.
Each
24
Appendix
end
Guest
Box
written
by
an
expert
who
provides
example
presented
chapter
their
own
work.
for
advanced
undergraduate
graduate
students
genetics,
resource
management,
biology,
professional
biologists
policy-makers
working
wildlife
habitat
management
agencies.
Much
will
also
interest
nonprofessionals
curious
about
role
Ecology,
Journal Year:
2022,
Volume and Issue:
104(2)
Published: Nov. 2, 2022
Amplicon-sequence
data
from
environmental
DNA
(eDNA)
and
microbiome
studies
provide
important
information
for
ecology,
conservation,
management,
health.
At
present,
amplicon-sequencing
studies-known
also
as
metabarcoding
studies,
in
which
the
primary
consist
of
targeted,
amplified
fragments
sequenced
many
taxa
a
mixture-struggle
to
link
genetic
observations
underlying
biology
quantitative
way,
but
applications
require
about
or
systems
under
scrutiny.
As
proliferate
it
becomes
more
develop
ways
make
them
ensure
that
their
conclusions
are
adequately
supported.
Here
we
previously
disparate
sets
techniques
making
such
quantitative,
showing
polymerase
chain
reaction
mechanism
explains
observed
patterns
amplicon
general
way.
By
modeling
process
through
amplicon-sequence
arise,
rather
than
transforming
post
hoc,
show
how
estimate
starting
proportions
mixture
taxa.
We
illustrate
calibrate
model
using
mock
communities
apply
approach
simulated
series
empirical
examples.
Our
opens
door
improve
use
wide
range
public
health,
related
fields.
Hydrobiologia,
Journal Year:
2022,
Volume and Issue:
850(6), P. 1263 - 1282
Published: May 12, 2022
Abstract
Environmental
DNA
(eDNA)
has
seen
a
massive
increase
in
application
freshwater
systems
with
concurrent
growth
protocol
developments
and
drive
to
gain
better
understanding
of
the
‘ecology’
eDNA.
This
raises
question
whether
we
are
currently
still
an
early,
developmental
phase
eDNA-based
assessments
or
already
transitioning
into
more
applied
stage
for
biomonitoring.
I
conducted
systematic
literature
review
on
381
eDNA-focused
studies
targeting
macro-organisms
over
last
5
years,
assessing
study
goals,
methods,
target
taxa
design
aspects.
The
results
show
biomonitoring-focused
throughout
while
fraction
investigating
eDNA
decreased.
metabarcoding
significantly
increased
applying
qPCRs
tentatively
declined.
A
geographic
inequality
was
observed
concerning
numbers
goals
biased
towards
global
North.
Descriptive
increased,
but
in-field
conventional
methods
combined
revealed
no
trend.
These
shift
application-focused
work
also
reveal
this
field
be
developing.
In
transitional
phase,
practitioners
need
ensure
consistency
data
comparability
long-term
monitoring
programmes.
Environmental Advances,
Journal Year:
2023,
Volume and Issue:
12, P. 100370 - 100370
Published: April 19, 2023
The
world
is
struggling
to
solve
a
devastating
biodiversity
loss
that
not
only
affects
the
extinction
of
treasured
species
and
irreplaceable
genetic
variation,
but
also
jeopardizes
food
production,
health,
safety
people.
All
initiatives
aimed
conserve
rely
heavily
on
monitoring
both
populations
get
accurate
spatial
patterns
overall
population
assessments.
Conventional
techniques,
such
as
visual
surveys
counting
individuals,
are
problematic
due
challenges
in
identifying
cryptic
or
immature
life
stages.
Environmental
DNA
(eDNA)
relatively
new
technology
has
potential
be
faster,
non-invasive,
cost-effective
tool
for
biodiversity,
conservation,
management
practices.
eDNA
been
extracted
from
materials
ancient
present,
its
applications
range
identification
individual
study
entire
ecosystems.
In
past
few
years,
there
substantial
increase
usage
research
pertaining
ecological
preservation
conservation.
However,
several
technological
problems
still
need
solved.
To
reduce
number
false
positives
and/or
negatives
produced
by
current
technologies,
it
necessary
improve
optimize
calibration
validation
at
every
stage
procedure.
There
significant
greater
information
about
physical
constraints
use,
well
synthesis,
state,
expected
lifespan,
modes
movement.
Due
widespread
use
research,
essential
assess
extent
breadth
these
studies.
this
article,
we
critically
reviewed
primary
subterranean
aquatic
invasive
species.
Through
review,
readers
can
better
understand
limitations
metabarcoding.
Science Robotics,
Journal Year:
2023,
Volume and Issue:
8(74)
Published: Jan. 18, 2023
The
protection
and
restoration
of
the
biosphere
is
crucial
for
human
resilience
well-being,
but
scarcity
data
on
status
distribution
biodiversity
puts
these
efforts
at
risk.
DNA
released
into
environment
by
organisms,
i.e.,
environmental
(eDNA),
can
be
used
to
monitor
in
a
scalable
manner
if
equipped
with
appropriate
tool.
However,
collection
eDNA
terrestrial
environments
remains
challenge
because
many
potential
surfaces
sources
that
need
surveyed
their
limited
accessibility.
Here,
we
propose
survey
sampling
outer
branches
tree
canopies
an
aerial
robot.
drone
combines
force-sensing
cage
haptic-based
control
strategy
establish
maintain
contact
upper
surface
branches.
Surface
then
collected
using
adhesive
integrated
drone.
We
show
autonomously
land
variety
stiffnesses
between
1
103
newton/meter
without
prior
knowledge
structural
stiffness
robustness
linear
angular
misalignments.
Validation
natural
demonstrates
our
method
successful
detecting
animal
species,
including
arthropods
vertebrates.
Combining
robotics
from
unreachable
aboveground
substrates
offer
solution
broad-scale
monitoring
biodiversity.