The
aim
of
this
thesis
is
to
understand
the
ecological
and
evolutionary
implications
urbanization
across
multiple
life
stages
in
túngara
frog.
Throughout
thesis,
I
sought
investigate
changes
phenotypes
selection
pressures
response
(Figure
1).
Specifically,
better
relationship
sexual
signals
urban
pressures,
comprehensively
characterize
effects
on
many
species
(Chapter
2).
In
Chapter
3,
look
explicitly
at
direct
two
important
sensory
pollutants
environments,
artificial
light
night
(ALAN)
noise
pollution,
male
breeding
behavior.
exposed
forest
sites,
naïve
conditions,
ALAN,
their
combination.
investigated
patterns
attraction
repulsion,
timing
behavior,
calling
behavior
males
these
various
conditions.
4,
continued
examining
isolated
combined
ALAN
now
quantifying
potential
via
receiver
behaviors.
broadcast
synthesized
playbacks
simulating
quantified
number
approaches
from
mates
(female
frogs),
predators
(fringe-lipped
bats)
under
different
Additionally,
examined
if
conditions
altered
preferences
both
females
bats
a
field
setting.
5,
development
tadpoles,
utilizing
reciprocal
transplant
experiment
between
populations
examine
intraand
intergenerational
early
developmental
stages.
6,
provide
an
overview
synthesis
my
research.
Current Opinion in Insect Science,
Journal Year:
2022,
Volume and Issue:
52, P. 100922 - 100922
Published: April 28, 2022
Cities
are
expanding
worldwide
and
urbanisation
is
considered
a
global
threat
to
biodiversity.
Urban
ecology
has
provided
important
insights
on
how
urban
environmental
changes
might
affect
individuals,
populations,
species;
however,
we
know
little
about
the
ecological
impacts
of
alter
species
interactions.
Species
interactions
backbone
communities
play
crucial
role
in
population
community
dynamics
generation,
maintenance
structure
Here,
I
review
studies
identify
key
mechanistic
pathways
through
which
processes
could
antagonistic
mutualistic
among
species.
More
specifically,
focus
insect
predation,
parasitoidism
herbivory,
competition,
host-pathogen
interactions,
pollination.
furthermore
knowledge
gaps
that
require
additional
research
attention
suggest
future
directions
may
help
shed
light
mechanisms
will
thus
aid
conservation
management
cities.
Ecology,
Journal Year:
2022,
Volume and Issue:
104(2)
Published: Oct. 5, 2022
Humans
promote
and
inhibit
other
species
on
the
urban
landscape,
shaping
biodiversity
patterns.
Institutional
racism
may
underlie
distribution
of
by
creating
disproportionate
resources
in
space
time.
Here,
we
examine
whether
present-day
street
tree
occupancy,
diversity,
composition
Baltimore,
MD,
USA,
neighborhoods
reflect
their
1937
classification
into
grades
loan
risk-from
most
desirable
(A
=
green)
to
least
(D
"redlined")-using
racially
discriminatory
criteria.
We
find
that
were
redlined
have
consistently
lower
α-diversity
are
nine
times
less
likely
large
(old)
trees
occupying
a
viable
planting
site.
Simultaneously,
locations
recent
activities,
with
high
occupancy
rate
small
(young)
trees.
However,
community
these
young
exhibited
turnover
reordering
across
compared
those
higher
grades,
due
heavy
reliance
single
species.
Overall,
while
negative
effects
redlining
remain
detectable
communities,
there
clear
signs
investment.
A
strategy
diverse
cohorts
paired
investments
site
rehabilitation
maintenance
be
necessary
if
cities
wish
overcome
ecological
feedbacks
associated
legacies
environmental
injustice.
Global Change Biology,
Journal Year:
2024,
Volume and Issue:
30(3)
Published: March 1, 2024
Abstract
Recent
work
has
shown
the
decline
of
insect
abundance,
diversity
and
biomass,
with
potential
implications
for
ecosystem
services.
These
declines
are
especially
pronounced
in
regions
high
human
activity,
urbanization
is
emerging
as
a
significant
contributing
factor.
However,
scale
these
traits
that
determine
variation
species‐specific
responses
remain
less
well
understood,
subtropical
tropical
regions,
where
urban
footprints
rapidly
expanding.
Here,
we
surveyed
moths
across
an
entire
year
protected
forested
sites
gradient
to
test
how
caterpillar
adult
life
stages
(Lepidoptera)
impacted
by
urbanization.
Specifically,
assess
development
affects
total
biomass
caterpillars,
abundance
quantify
richness
phylogenetic
macro‐moths
development.
Additionally,
explore
life‐history
condition
species'
At
community
level,
find
decreases
moth
abundance.
We
also
sharp
response
phylogeny,
leading
decrease
species
more
sites.
Finally,
our
study
found
smaller
than
larger
environments,
perhaps
highlighting
tradeoffs
metabolic
costs
heat
favoring
over
relative
benefits
dispersal
moths.
In
summary,
research
underscores
far‐reaching
consequences
on
provides
compelling
evidence
forests
alone
may
not
be
sufficient
safeguard
biodiversity
cities.
Insect Conservation and Diversity,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 22, 2025
Abstract
Mowing
is
a
commonly
used
and
necessary
practice
in
the
management
of
urban
meadowscapes.
However,
mowing
also
source
mortality
for
insects
these
In
this
study,
we
examined
how
changes
intensity
mows
performed
late
fall
affect
overwintering
stem‐dwelling
insects.
We
define
as
size
thatch
produced
by
selected
equipment
blade
positioning.
generate
more
information
on
spatial
structure
insect
community
meadowscapes,
both
within
individual
stems
broader
habitat.
artificially
simulated
different
levels
Solidago
altissima
L.
(Asterales:
Asteraceae)
cutting
to
lengths
recorded
their
survival
outcomes.
found
that
low
treatment
yielded
lower
rates
than
no‐mow
control
high
treatment.
are
distributed
non‐random
arrangement
vertically
meadowscape.
These
findings
highlight
importance
understanding
effects
changing
parameters
when
designing
practices
identify
some
new
gaps
our
they
may
interact
with
disturbances.
Landscape Ecology,
Journal Year:
2024,
Volume and Issue:
39(4)
Published: March 23, 2024
Abstract
Context
In
cities,
insect-pollinated
vascular
plants
enhance
environmental
quality,
support
pollinators,
and
provide
essential
ecosystem
services
for
citizens.
However,
floral
communities
associated
with
traffic-related
green
spaces
are
rarely
considered
valuable
elements
of
urban
infrastructure
(UGI).
Objectives
The
main
objective
this
work
was
to
assess
if
in
Finland
possess
species-rich
can
assist
ecological
restoration—converting
degraded
areas
into
functionally
diverse
ecosystems.
Thus,
we
evaluated
richness,
cover,
community
composition
(emphasizing
flowering
ones)
on
traffic
islands,
parking
lots,
road
verges.
Methods
assessment
performed
during
the
mean
phenophase
European
boreal
zone
(July
August)
using
a
standard
quadrat
(1
m
2
)
placement
method.
We
studied
suburban
locations
three
highly
populated
(>
170
000
inhabitants)
Finnish
cities—Helsinki,
Tampere,
Turku.
There
were
90
sampling
sites
15
replicates
per
location
type
each
city
five
measurement
space
(habitat)
type.
species
assessed
relation
location,
habitat
type,
city,
average
daily
(ADT),
distance
road.
Results
Urban
had
lower
total
plant
richness
fewer
indicator
(characterized
only
by
single
species)
compared
species).
Species
time
survey
did
not
differ
among
locations.
Traffic
islands
richer
habitats
than
verges
but
from
lots.
Total
vegetation
cover
increased
an
increasing
Vegetation
differed
being
higher
irrespective
ADT.
all
types,
two
most
common
yarrow
Achillea
millefolium
autumn
hawkbit
Leontodon
autumnalis
which
occurred
at
70.2%
67.8%
sites,
respectively.
ten
(when
present)
low
varied
between
1.5
9.5%
.
Conclusions
Similar
(but
might
indicate
equal
importance
provided
cities
location.
Because
lots
contain
rich
communities,
they
should
be
better
integrated
UGI
valued
planners.
Management
intensity
terms
grass
cuts
ecologically
justified.
An
increase
number
help
improve
quality
pollinator
biodiversity
reducing
pollution.
Plant Physiology and Biochemistry,
Journal Year:
2024,
Volume and Issue:
215, P. 109056 - 109056
Published: Aug. 18, 2024
Urbanization
impacts
plant-herbivore
interactions,
which
are
crucial
for
ecosystem
functions
such
as
carbon
sequestration
and
nutrient
cycling.
While
some
studies
have
reported
reductions
in
insect
herbivory
urban
areas
(relative
to
rural
or
natural
forests),
this
trend
is
not
consistent
the
underlying
causes
variation
remain
unclear.
We
conducted
a
continental-scale
study
on
along
urbanization
gradients
three
European
tree
species:
Quercus
robur,
Tilia
cordata,
Fraxinus
excelsior,
further
investigated
their
biotic
abiotic
correlates
get
at
mechanisms.
To
end,
we
quantified
leaf
foliar
secondary
metabolites
(phenolics,
terpenoids,
alkaloids)
176
trees
across
eight
cities.
Additionally,
collected
data
microclimate
(air
temperature)
soil
characteristics
(pH,
carbon,
nutrients)
test
of
effects
directly
indirectly
(through
changes
plant
chemistry)
linked
herbivory.
Our
results
showed
that
was
negatively
associated
with
Q.
robur
F.
but
T.
cordata.
In
addition,
positively
metabolite
concentrations,
only
robur.
air
temperature
nutrients
(magnesium)
case
these
variables
were
Contrary
expectations,
found
no
evidence
indirect
factors
via
defences
either
excelsior.
Additional
drivers
must
therefore
be
accounted
explain
observed
interspecific
variation.