Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 18, 2023
Abstract
Beta
diversity
has
been
widely
used
in
studies
to
understand
the
spatial
distribution
patterns
of
species
and
assess
effects
anthropic
impacts
on
aquatic
environments.
Dissimilarity
indices,
such
as
Sorensen
Jaccard,
are
calculate
beta
diversity,
show
differences
their
way
evaluating
valuing
biodiversity
components,
which
result
different
patterns.
Despite
this
variation,
efficiency
performance
measure
environmental
communities
remains
unexplored.
In
study,
we
evaluate
changes
composition
Odonata
adult
Amazonian
streams
using
indices.
The
were
sampling
98
small
two
regions
eastern
Amazon.
We
compared
preserved
altered
each
region
Jaccard
Our
results
that
all
methods
effective
detecting
when
comparing
stream
communities.
However,
index
was
more
able
reflect
these
changes,
possibly
due
its
lower
sensitivity
rare
index.
Even
with
a
subtle
difference
detection
power,
should
consider
it,
especially
less
pronounced,
greater
accuracy
increases
probability
human
actions
natural
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 13, 2024
Abstract
Freshwater
ecosystems,
under
the
influence
of
human
activities,
are
subject
to
multiple
environmental
stressors
that
lead
biodiversity
loss,
and
habitat
modification.
In
recent
years,
different
various
organisms
have
been
used
as
bioindicators
detect
changes
by
their
ability
perceive
in
community
attributes.
A
good
example
is
semiaquatic
bedbugs
Gerromorpha
infra
order
act
predators
sensitive
subtle
conditions.
Our
research
aimed
investigate
responses
communities,
genera
species
along
an
gradient
45
Amazon
streams.
The
was
assessed
utilizing
Habitat
Integrity
Index
(HII)
across
sampled
streams,
yielding
a
collection
2.212
specimens
representing
three
families,
seven
genera,
36
species.
integrity,
represented
HII,
showed
positive
relationship
with
both
richness
Gerromorpha,
underscoring
respond
change
analyzed
habitats.
Brachymetra
lata
from
Gerridae
family
Rhagovelia
jubata,
elegans
Veliidae
were
most
taxa
HII.
Streams
characterized
heightened
anthropogenic
disturbance
reduced
riparian
vegetation
associated
pattern
marked
increased
abundance
frequency
generalist
genus
within
family.
We
hope
results
this
study
will
contribute
future
biomonitoring
programs
response
aiming
assist
decision-making
protect
restore
areas.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 18, 2023
Abstract
Beta
diversity
has
been
widely
used
in
studies
to
understand
the
spatial
distribution
patterns
of
species
and
assess
effects
anthropic
impacts
on
aquatic
environments.
Dissimilarity
indices,
such
as
Sorensen
Jaccard,
are
calculate
beta
diversity,
show
differences
their
way
evaluating
valuing
biodiversity
components,
which
result
different
patterns.
Despite
this
variation,
efficiency
performance
measure
environmental
communities
remains
unexplored.
In
study,
we
evaluate
changes
composition
Odonata
adult
Amazonian
streams
using
indices.
The
were
sampling
98
small
two
regions
eastern
Amazon.
We
compared
preserved
altered
each
region
Jaccard
Our
results
that
all
methods
effective
detecting
when
comparing
stream
communities.
However,
index
was
more
able
reflect
these
changes,
possibly
due
its
lower
sensitivity
rare
index.
Even
with
a
subtle
difference
detection
power,
should
consider
it,
especially
less
pronounced,
greater
accuracy
increases
probability
human
actions
natural
