Insect Conservation and Diversity,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
Host
plants
required
by
specialist
bee
species
may
be
limited
in
urban
areas.
We
investigated
the
effects
of
urbanisation
on
Heriades
truncorum
,
a
solitary
that
is
plant
family
Asteraceae.
examined
brood
cell
number,
host
and
native
pollen
proportions
(via
DNA
metabarcoding)
nutritional
composition
provisions
H.
nests.
Increasing
resulted
fewer
cells
higher
genus
diversity
provisions.
Bees
collected
from
non‐native
non‐Asteraceae
genera,
including
new
records
for
.
overall
was
associated
with
decreased
numbers.
However,
an
increased
Asteraceae
genera
number.
The
proportion
were
not
changes
Pollen
provision
related
to
or
averaged
P:L
ratio
~1:1,
similar
These
results
suggest
are
equally
beneficial
Germany.
Moreover,
at
more
sites
suggests
level
resources,
particularly
plants,
could
highly
landscapes.
While
high
conservation
concern,
our
data
demonstrate
mechanisms
which
narrow
less
common
specificity
experience
stress
areas
provides
mitigation
strategies.
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(3)
Опубликована: Янв. 8, 2024
As
bees’
main
source
of
protein
and
lipids,
pollen
is
critical
for
their
development,
reproduction,
health.
Plant
species
vary
considerably
in
the
macronutrient
content
pollen,
research
bee
model
systems
has
established
that
this
variation
both
modulates
performance
guides
floral
choice.
Yet,
how
chemistry
shapes
interactions
between
plants
bees
natural
communities
an
open
question,
essential
understanding
nutritional
dynamics
plant–pollinator
mutualisms
informing
conservation.
To
fill
gap,
we
asked
nutrition
(relative
lipid
content)
sampled
from
109
co-flowering
plant
structured
visitation
patterns
observed
among
75
subgenera
pollen-collecting
Great
Basin/Eastern
Sierra
region
(USA).
We
found
degree
similarity
species’
predicted
visitor
communities,
even
after
accounting
morphology
phylogeny.
Consideration
also
shed
light
on
structure
interaction
network:
Bee
genera
were
arranged
into
distinct,
interconnected
groups,
delineated
by
differences
values,
revealing
potential
niches.
Importantly,
alone
(high
protein,
high
lipid,
or
balanced)
did
not
predict
diversity
visitors,
indicating
offering
complementary
may
be
equally
valuable
supporting
diversity.
Nutritional
should
thus
a
key
consideration
when
selecting
habitat
restoration,
nutritionally
explicit
perspective
needed
considering
reward
involved
community
ecology
pollination.
Annals of the Entomological Society of America,
Год журнала:
2023,
Номер
116(5), С. 261 - 275
Опубликована: Июль 25, 2023
Abstract
Pollinator
nutrition
is
a
highly
complex
subject
that
we
are
just
starting
to
unravel,
from
the
multidimensional
nature
of
bee
forage
(pollen
and
nectar)
how
abiotic
environment
can
affect
resources
available
bees.
Doing
so
utmost
importance,
as
improving
pollinator
resource
availability
one
proposed
mechanisms
improve
populations
health.
However,
landscape
change
has
changed
naturally
for
pollinators.
Farmland
cropping
systems
create
unique
nutritional
pollinators,
with
agroecosystems
typically
containing
few
crops
dominating
along
natural
corridors
noncrop
plants.
The
types
planted
surrounding
will
ultimately
bees
have
access
to.
Even
management
practices
in
agriculture
pests
controlled
will,
directly
indirectly,
health
nutrition.
Hence,
better
understanding
agricultural
ecosystems
warranted.
This
review
synthesizes
research
on
ecology
landscapes
advance
our
agriculture.
Ecological Indicators,
Год журнала:
2023,
Номер
156, С. 111140 - 111140
Опубликована: Окт. 27, 2023
Bees
are
strongly
dependent
on
environmental
and
climatic
conditions.
Anthropogenic
climate
changes
mainly
responsible
for
restricted
access
of
bees
to
food
resources.
Therefore,
this
study
aimed
evaluate
the
effect
most
important
meteorological
variables
affecting
collection
by
honey
bees.
Using
electronic
beehive
scales,
remote
monitoring
daily
hive
weight
60
colonies
from
apiaries
was
performed
during
three
beekeeping
seasons.
The
depended
variables,
particularly
sunshine
duration
air
temperature.
topographic
(e.g.
landscape
structure,
forest
habitat
type,
share
area
with
plant
species
attractive
bees)
spatial
proportion
forest,
arable
land,
green
area)
contributed
a
much
lesser
extent.
Monitoring
revealed
that
conditions
affected
strongly.
In
conclusion,
long-term
bee
colony
large
scale
can
be
source
substantial
data
about
impact
their
resources
in
order
restore
conserve
environment
will
meet
nutritional
needs
different
Frontiers in Sustainable Food Systems,
Год журнала:
2024,
Номер
8
Опубликована: Июнь 26, 2024
Human
activities,
including
urban
expansion,
intensive
farming
practices,
and
the
application
of
pesticides
have
significantly
reshaped
bee
habitats.
Understanding
nutritional
content
pollen,
primary
source
bees’
proteins
lipids,
is
important
for
maintaining
their
diet
health.
In
this
study,
we
set
out
to
determine
composition
pollen
from
various
plant
families
genera.
Our
objectives
were
analyze
levels
non-esterified
fatty
acids
(NEFAs),
amino
(AAs),
protein-to-lipid
(P:L)
ratios,
omega-6:3
ratios
57
species
native
North
America.
These
data
suggest
a
potential
trade-off
between
NEFA
AA
within
suggesting
that
diverse
floral
may
benefit
bees
more
than
single
source.
The
profiles
showed
considerable
diversity,
with
all
providing
essential
(EAAs)
required
health,
except
methionine
which
was
lacking
in
Rhus
glabra
pollen.
family
Asteraceae
especially
abundant
EAAs.
P:L
varied
widely
further
emphasizing
need
access
array
profiles.
There
no
overall
differences
introduced
species.
This
study
highlights
significance
resources
meet
comprehensive
needs
bees,
contributing
support
pollinator
populations
broader
ecological
system.
Insects,
Год журнала:
2022,
Номер
13(10), С. 863 - 863
Опубликована: Сен. 23, 2022
We
investigated
the
bacterial
community
of
bee
bread
and
pollen
samples
using
an
approach
through
16
s
rRNA
high-throughput
sequencing.
The
results
revealed
a
higher
diversity
in
than
as
depicted
taxonomic
profiling,
well
indices
such
Shannon
index
(3.7
to
4.8
for
1.1
1.7
samples)
Simpson’s
(>0.9
0.4−0.5
pollen).
Principal
component
analysis
showed
distinct
difference
communities.
could
presumably
be
due
factors
storage
period,
processing
food,
fermentation,
high
sugar
environment.
However,
no
effect
feed
(rapeseed
or
oak
patties
even
natural
inflow)
was
indicated
on
composition
bread,
because
lack
restriction
foraged
inflow
hive.
diverse
profile
contribute
nutritional
provisioning
enhance
detoxification
process;
however,
thorough
investigation
functional
role
individual
bacteria
genera
remains
task
future
studies.
Frontiers in Ecology and Evolution,
Год журнала:
2024,
Номер
12
Опубликована: Авг. 5, 2024
Habitat
loss
is
a
primary
driver
of
global
biodiversity
decline,
negatively
impacting
many
species,
including
native
bees.
One
approach
to
counteract
the
consequences
habitat
through
restoration,
which
includes
transformation
degraded
or
damaged
habitats
increase
biodiversity.
In
this
review,
we
survey
bee
restoration
literature
over
last
14
years
provide
insights
into
how
best
promote
diversity
and
abundance
natural
landscapes
in
North
America.
We
highlight
relevant
questions
concepts
consider
throughout
various
stages
projects,
categorizing
them
pre-,
during-,
post-restoration
stages.
emphasize
importance
planning
species-
site-specific
strategies
support
bees,
providing
floral
non-floral
resources
increasing
nest
site
availability.
Lastly,
underscore
significance
conducting
evaluations
long-term
monitoring
following
efforts.
By
identifying
effective
methods,
success
indicators,
areas
for
future
research,
our
review
presents
comprehensive
framework
that
can
guide
land
managers
during
urgent
time
restoration.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 20, 2025
Extreme
heat
events
are
increasingly
common,
and
if
these
align
with
pollen
development,
they
can
alter
nutrient
composition.
However,
no
studies
have
examined
how
the
timing
of
relative
to
bud
development
affects
role
in
plant
pollination
bee
health.
To
explore
this,
we
exposed
highbush
blueberry
plants
extreme
(37.5
°C)
or
normal
(25
conditions
for
4
h
across
several
floral
stages.
Pollen
was
analyzed
protein,
carbohydrate,
amino
acid
content.
We
found
that
buds
vary
their
sensitivity
heat,
swell
being
most
heat-sensitive
developmental
stage
significant
reductions
total
individual
acids.
When
from
same
fed
Osmia
lignaria
larvae,
individuals
heat-stressed
were
7
times
more
likely
die
compared
those
non-stressed
pollen.
Blueberry
flowers
used
a
hand
study,
where
observed
39%
reduction
fruit
set
following
stress
at
swell.
This
study
reveals
disrupt
both
survival
through
changes
nutritional
Environmental Microbiology,
Год журнала:
2025,
Номер
27(4)
Опубликована: Март 28, 2025
ABSTRACT
We
used
flowers
to
explore
how
ephemeral
anthosphere
microbiomes
differ
among
flowering
plant
species
and
along
an
urban
gradient.
Here,
we
sequenced
16S
rRNA
for
bacteria,
ITS1
fungi
rbcL
DNA
from
10
different
sampled
characterise
gradient
identify
important
network
interactions.
Bacterial
fungal
flower
significantly
differed
in
diversity
across
species,
especially
Asteraceae
Fabaceae.
Across
all
analyses,
four
taxa,
the
bacteria
Pantoea
Rosenbergiella
Alternaria
Cladosporium
were
highly
prevalent
contributed
majority
of
microbiome
composition
differences
observed
between
species.
These
taxa
harbour
strains
or
that
may
be
either
pathogenic
beneficial
plants.
a
land
use
gradient,
community
bacterial
was
stable
consistent.
Flower‐plant
networks
confirmed
focal
families
abundance
on
each
flower,
with
addition
Paulowniaceae,
suggesting
pollinators
visiting
also
visit
this
family.
Our
findings
reveal
are
diverse
at
level
encouragingly
remain
robust
against
urbanisation.