Although
the
loss
of
native
habitat
is
primary
cause
biodiversity
change
worldwide,
understanding
biodiversity's
response
to
requires
considering
influence
introduced
anthropogenic
habitats
in
modified
landscapes.My
thesis
examined
how
and
gain
affected
patterns,
using
Scarabaeinae
beetles
(aka
dung
beetles)
as
a
study
system.I
analyzed
various
dimensions
reduction
tropical
forest
paired
along
gradient
Brazilian
Atlantic
Forest.In
first
chapter,
I
observed
changes
beetle
diversity
this
gradient.Deforestation
was
associated
with
patterns
biotic
differentiation,
increases
alpha
gamma
richness,
"positive"
responses
that
can
be
partly
understood
light
history
Forest
proximity
taxa
sources
open
areas.In
second
explored
composition
structure
communities
one
type
may
related
those
adjacent
types.The
interaction
between
gradients
environmental
influences
community
cover
reduction.Findings
reveal
complex
interplay
factors
shaping
within
habitats.Landscape
structure,
species
associations,
conversion
significantly
impacted
composition,
owing
combined
spillover,
invasion,
extinction.Landscape
configuration,
such
increased
edges
pasture,
turnover,
underscoring
importance
managing
areas
preserve
landscape
biodiversity.This
research
brings
crucial
contributions
influence,
transcending
prevalent
geographical
taxonomic
biases.These
findings
guide
strategies
for
conservation
restoration
landscapes,
essential
fundamental
ecological
processes.
Urban Ecosystems,
Год журнала:
2024,
Номер
27(4), С. 1175 - 1190
Опубликована: Фев. 12, 2024
Abstract
The
loss
of
forest
cover
in
urban
landscapes
alters
the
dynamics
spatial
and
food
resources,
challenging
maintenance
species,
which
may
have
their
condition
compromised.
Dung
beetles
are
sensitive
to
changes
vegetation
structure
land
use
caused
by
human
activities,
processes
that
intrinsically
related
establishment
development
cities.
aim
this
study
was
evaluate
effect
landscape
on
abundance
morphological
characteristics
two
species
dung
beetle
(
Dichotomius
boreus
quadrilobatus
)
inhabit
forested
areas
urbanized
Amazon
region.
We
carried
out
38
located
six
regions
central
region
Amazon.
evaluated
structure,
at
site
city
scales,
abundance,
individual
body
size,
relative
horn
length
males.
At
local
scale,
with
greater
showed
beetles,
as
well
lengths
D.
horns.
Cities
a
amount
had
larger
individuals
than
those
less
cover.
conclude
key
habitat
for
populations
strong
relationship
between
landscape.
healthy
abundant
Amazonian
guarantees
persistence
ecosystem
services
provided
these
organisms
ecosystems.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Дек. 6, 2023
Abstract
Dung
removal
by
macrofauna
such
as
dung
beetles
is
an
important
process
for
nutrient
cycling
in
pasturelands.
Intensification
of
farming
practices
generally
reduces
species
and
functional
diversity
terrestrial
invertebrates,
which
may
negatively
affect
ecosystem
services.
Here,
we
investigate
the
effects
cattle-grazing
intensification
on
field
experiments
replicated
38
pastures
around
world.
Within
each
study
site,
measured
managed
with
low-
high-intensity
regimes
to
assess
between-regime
differences
beetle
removal,
whilst
also
considering
climate
regional
variations.
The
impacts
were
heterogeneous,
either
diminishing
or
increasing
richness,
diversity,
rates.
more
variable
across
sites
than
within
sites.
increased
richness
sites,
while
consistently
enhanced
independently
cattle
grazing
intensity
climate.
Our
findings
indicate
that,
despite
intensified
stocking
rates,
services
related
decomposition
can
be
maintained
when
a
functionally
diverse
community
inhabits
human-modified
landscape.
Ecology and Evolution,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 1, 2025
ABSTRACT
The
growth
of
cities
is
one
the
main
direct
and
indirect
factors
responsible
for
loss
native
vegetation
cover.
Urbanization
directly
affects
biological
communities
inhabiting
forest
remnants
inserted
in
cities,
compromising
maintenance
urban
natural
ecosystems.
By
understanding
effects
landscape
transformation
due
to
urbanization,
we
can
have
insights
regarding
distribution
land
uses
that
allow
a
proper
This
work
assessed
structure
variables
(forest
cover,
agricultural
area,
edge
density,
number
patches)
on
dung
beetle
assemblages
functional
groups
(i.e.,
diet
resource
removal
strategy)
sampled
38
sites
located
along
an
urban–rural
gradient
six
belonging
metropolitan
area
Manaus
Central
Amazonia.
Losses
cover
were
most
determining
factor,
negatively
affecting
species
richness,
abundance,
body
size.
increases
agriculture
affected
while
density
positively
their
abundance.
patches
abundances—except
dweller
species—and
size
diet‐generalist
species.
These
results
demonstrate
changes
ecological
diversity
caused
by
urbanization
are
driven
mostly
loss,
although
configuration
important
study
contributes
how
amount
tropical
affect
taxonomic
assemblages.
Plant
communities
with
higher
species
richness
and
phylogenetic
diversity
can
increase
the
of
herbivores
their
enemies
through
trophic
interactions.
However,
whether
these
two
features
plant
have
same
positive
influence
on
other
guilds
non-trophic
mechanisms
requires
further
exploration.
Dung
beetles
represent
an
ideal
system
for
testing
such
impacts,
as
they
do
not
a
specialized
interaction
plants
are
sensitive
to
changes
in
vegetation
structure
associated
microclimate.
We
used
dataset
dung
collected
from
forest
sites,
restoration
plots,
cattle
pastures
(a)
determine
within
plots
total
biomass
taxonomic,
functional,
beetles;
(b)
if
establishment
allows
recover
abundance
beetle
communities,
relative
what
is
found
livestock
pastures.
In
Scarabaeinae
biomass,
functional
originality,
were
positively
related
number
species,
but
only
all
diversity.
Finally,
allowed
threefold
discuss
how
high
favor
recovery
by
potentially
creating
more
niche
opportunities.
Ecological Entomology,
Год журнала:
2024,
Номер
49(4), С. 463 - 475
Опубликована: Март 28, 2024
Abstract
Owing
to
the
rapid
and
ongoing
anthropogenic
changes
impacting
ecosystem
functions
their
interplay
with
biodiversity,
there
is
a
growing
focus
on
assessing
insect
functional
diversity.
This
emphasis
helps
unravel
key
roles
of
insects
processes
identify
assembly
mechanisms
that
regulate
species
coexistence.
The
ecological
phytophagous
scarab
beetles
(Scarabaeidae)
have
been
relatively
unexplored,
potential
traits
are
scattered
throughout
literature.
Species
within
this
group
exhibit
diverse
lifestyles,
forms
sizes.
They
exploit
various
resources
such
as
decomposing
wood,
foliage,
roots
flowers,
small
subset
identified
predators.
Although
many
representatives
significant
agricultural
pests,
information
contributions
in
natural
ecosystems
has
not
consolidated.
study
reviews
potentially
carried
out
by
proposes
be
incorporated
into
studies
Through
this,
goal
integrate
information,
stimulate
generation
questions
go
beyond
classical
theory
contribute
advancing
our
knowledge
functions,
well
foundations
for
understanding
community
structure.
We
propose
use
trophic
groups
define
bioturbation,
organic
matter
decomposition,
biological
control
pollination.
A
simplified
list
was
obtained
conducting
correlation
analyses
using
trait
matrix
from
region
northern
Colombia.
represents
advance
framework
ecology,
applicable
territorial
planning
biodiversity
conservation.
Revista Mexicana de Biodiversidad,
Год журнала:
2023,
Номер
94, С. e945059 - e945059
Опубликована: Июнь 20, 2023
We
evaluated
short-
(among
months
within-years)
and
long-term
(between
1999-2000
2016-2017)
temporal
patterns
of
taxonomic
functional
β-
diversity
(and
its
components
substitution
gain/loss)
dung
beetle
assemblages
in
forest
fragments
pastures
the
Los
Tuxtlas
Biosphere
Reserve
(LTBR).
Habitat
type
affected
dissimilarity
richness
difference
component,
with
average
values
being
respectively
1.42
1.56
times
higher
than
fragments.
Only
habitat
was
important
for
richness,
1.93
1.69
2016-2017,
respectively.
Pastures
were
taxonomically
functionally
poorer
but
also
more
temporally
dynamic
both
within-year
between-years.
is
a
determining
factor
dynamics,
presenting
stable
cattle
pastures.
