Climate underpins continent‐wide patterns of carotenoid‐based feather colour consistent with Gloger's observations
Sifiso M. Lukhele,
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Samuel Jones,
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Nadya E. Seal Faith
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et al.
Journal of Animal Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 25, 2025
Animal
coloration
has
long
been
predicted
to
vary
across
geographic
and
climatic
gradients
in
accordance
with
a
long-standing
ecogeographical
rule.
But
further
his
widely
supported
predictions
that
melanin
pigmentation
increases
towards
the
Equator,
Gloger
observed
reds
yellows
are
more
vivid
warm
regions
thus
prevalent
at
lower
latitudes,
prediction
by
Görnitz,
who
suggested
these
colours
would
be
intense
areas
higher
rainfall.
Yet,
studies
of
associations
between
geography
or
climate
carotenoid-based
plumage
test
observations
continental
scale
scarce.
Here,
we
investigated
extent
which
yellow
red
feather
colour
varies
according
hypotheses
Pogoniulus
tinkerbirds
distributions
sub-Saharan
Africa.
We
tested
first
for
along
latitudinal
elevational
gradients,
then
factors
rainfall
temperature
may
underpin
variation
on
scales.
find
evidence
consistent
Görnitz's
saturated
warmer
hues
latitudes
were
primarily
attributed
relationship
underpart
By
contrast,
forecrown
colour,
trait
previously
associated
sexual
selection,
had
complex
association
climate,
hue
rainfall,
but
intensity
showing
contrasting
patterns
latitude.
highlight
nature
coloration,
suggesting
although
environmental
affect
abundance
carotenoid
availability,
is
also
influenced
other
selective
pressures.
Language: Английский
Urbanization alters the geographic patterns of passerine plumage color in China
Jiehua Yu,
No information about this author
Haoting Duan,
No information about this author
Baoming Zhang
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et al.
Landscape and Urban Planning,
Journal Year:
2024,
Volume and Issue:
248, P. 105101 - 105101
Published: April 26, 2024
Language: Английский
Urbanisation impacts plumage colouration in a songbird across Europe: Evidence from a correlational, experimental and meta‐analytical approach
Journal of Animal Ecology,
Journal Year:
2023,
Volume and Issue:
92(10), P. 1924 - 1936
Published: Aug. 13, 2023
Abstract
Urbanisation
is
accelerating
across
the
globe,
transforming
landscapes,
presenting
organisms
with
novel
challenges,
shaping
phenotypes
and
impacting
fitness.
Urban
individuals
are
claimed
to
have
duller
carotenoid‐based
colouration,
compared
their
non‐urban
counterparts,
so‐called
‘
urban
dullness
’
phenomenon.
However,
at
intraspecific
level,
this
generalisation
surprisingly
inconsistent
often
based
on
comparisons
of
single
urban/non‐urban
populations
or
studies
from
a
limited
geographical
area.
Here,
we
combine
correlational,
experimental
meta‐analytical
data
common
songbird,
great
tit
Parus
major
,
investigate
plumage
colouration
in
forest
Europe.
We
find
that,
as
predicted,
paler
than
individuals,
although
there
large
population‐specific
differences
magnitude
urban‐forest
contrast
colouration.
Using
one
focal
region
(Malmö,
Sweden),
reveal
processes
behind
differences,
which
unlikely
be
result
genetic
early‐life
conditions,
but
instead
consequence
environmental
factors
acting
after
fledging.
Finally,
our
meta‐analysis
indicates
that
phenomenon
well
established
literature,
for
tits,
consistent
changes
traits,
particularly
carotenoid
chroma,
response
anthropogenic
disturbances.
Overall,
results
provide
evidence
uniformity
also
highlight
effect
depends
local
characteristics.
Future
long‐term
replicated
studies,
covering
wider
range
species
feeding
guilds,
will
essential
further
understanding
eco‐evolutionary
implications
Language: Английский
How does urbanization affect natural selection?
Functional Ecology,
Journal Year:
2024,
Volume and Issue:
38(12), P. 2522 - 2536
Published: Sept. 29, 2024
Abstract
Urbanization
is
one
of
the
most
significant
contributors
to
Anthropocene,
and
urban
evolutionary
ecology
has
become
an
important
field
research.
While
it
commonly
assumed
that
cities
impose
new
stronger
selection,
contradictory
assertion
selection
may
be
relaxed
in
also
frequently
mentioned,
overall,
our
understanding
effects
urbanization
on
natural
incomplete.
In
this
review,
we
first
conduct
a
literature
search
find
evidence
for
patterns
phenotypic
traits
including
morphology,
physiology,
behaviour
life
history,
non‐urban
populations
animals
plants.
This
reveals
coefficients
context
are
scarce
(
n
=
8
studies
providing
gradients/differentials
include
total
200
coefficients)
lack
standardized
methods
hinders
quantitative
comparisons
across
(e.g.
with
meta‐analysis).
These
studies,
however,
provide
interesting
insight
agents
shaping
improve
mechanistic
processes
at
different
spatial
scales.
We
then
perform
second
review
genomic
assessing
intensity
cities,
genome
non‐human
populations.
returns
383
articles,
only
34
these
truly
investigate
footprints
associated
urbanization,
study
provides
genetic
coefficients.
Here
again,
highly
heterogeneous
approaches,
yet
some
strong
adaptation.
neither
nor
were
able
quantitatively
assess
versus
habitats.
Thus,
propose
roadmap
how
future
should
metrics
facilitate
mega‐
or
meta‐analyses
explore
generalized
selection.
Read
free
Plain
Language
Summary
article
Journal
blog.
Language: Английский
Environmental and social correlates of the plumage color polymorphism in an urban dweller, feral pigeon (Columba livia f. domestica)
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 28, 2024
Abstract
We
examined
how
urban
environments
affect
the
abundance,
proportion,
and
diversity
of
plumage
color
morphs
in
feral
pigeons.
Five
major
(black,
blue,
white,
red,
mixed)
were
counted
sixty
25-ha
plots
Poznań
City
(Poland).
Generalized
additive
models
used
to
study
correlations
among
proportion
morphs,
environmental
factors.
Anthropogenic
food
sources
positively
correlated
with
abundance
black
proportions
red
morphs.
The
blue
morph
peaked
at
a
moderate
percentage
tall
building
cover,
but
its
decreased.
A
similar
decrease
was
observed
mixed
decreased,
whereas
white
increased
as
distance
from
city
center
increased.
(Simpson)
index
hedgerow
density
negatively
street
density.
Color
area
may
be
sustained
by
differential
responses
features
environment.
However,
positive
correlation
between
indicates
social
attraction
rather
than
isolation
Language: Английский
Extra-pair paternity variation in two passerine birds breeding in a gradient of urbanisation
Published: Nov. 10, 2023
Urbanisation
has
been
increasing
worldwide
in
recent
decades,
driving
environmental
change
and
exerting
novel
selective
pressures
on
wildlife.
Phenotypic
differences
between
urban
rural
individuals
have
widely
documented
several
taxa.
However,
the
extent
to
which
urbanisation
impacts
mating
strategies
is
less
known.
Here,
we
inferred
extra-pair
paternity
variation
nestbox-breeding
great
tits
(Parus
major)
blue
(Cyanistes
caeruleus)
a
gradient
of
Warsaw,
Poland,
over
3
breeding
seasons.
was
quantified
as
amount
impervious
surface
area
(ISA),
light
pollution,
noise
pollution
tree
cover
within
100
m
radius
around
each
nestbox.
We
successfully
genotyped
1235
1306
with
genotyping-by-sequencing
method.
Extra-pair
by
computing
genomewide
relatedness
matrix
9379
SNP
markers
12958
tits.
report
higher
more
urbanized
areas
(e.g.
ISA,
lower
cover).
no
such
trend
found
Late-stage
survival
individual
nestlings
both
species
not
associated
or
proxies,
thus
were
able
detect
fitness
benefits
drawbacks
being
within-pair
offspring
relation
degree
urbanisation.
Our
results
contribute
growing
body
knowledge
reporting
effects
avian
ecology
behaviour
confirm
species-specific
population-specific
patterns
paternity.
Language: Английский