Landscape influence on pollinator population genetic connectivity
Insect Conservation and Diversity,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 17, 2025
Abstract
Insect
pollinators
face
numerous
threats,
including
habitat
loss
and
population
fragmentation.
The
effects
of
human‐altered
landscapes
on
connectivity
need
to
be
better
understood
inform
effective
mitigation
measures.
We
examined
the
literature
landscape
heterogeneity
genetic
in
two
key
pollinator
groups:
bees
(Hymenoptera:
Anthophila)
hoverflies
(Diptera:
Syrphidae).
identified
113
studies
from
59
countries,
covering
96
bee
21
hoverfly
species.
However,
biased
taxonomic
geographical
coverage
limited
broad
conclusions
regarding
species
susceptibility
isolation.
Notably,
remain
significantly
understudied,
hampering
comprehensive
assessments
patterns.
While
some
demonstrated
differentiation
across
tens
kilometres,
others
maintained
entire
continents.
Various
features,
water
bodies
mountain
ranges,
often
acted
as
barriers
gene
flow,
while
impacts
deforestation,
agriculture,
urbanisation
were
mixed.
Biological
traits
like
body
size,
resource
specialisation,
sizes
found
influence
contrasting
results
precluded
conclusive
findings.
Future
research
should
include
evaluations
time
lags
statistical
power
determine
appropriateness
selected
tools
for
testing
hypotheses
recent
pollinators.
Owing
increased
interest
corridors,
encompassing
a
wider
range
species,
habitats,
improved
study
designs,
is
needed
provide
an
evidence‐based
framework
conservation
Language: Английский
Building a reliable 16S mini-barcode library of wild bees from Occitania, south-west of France
Biodiversity Data Journal,
Journal Year:
2025,
Volume and Issue:
13
Published: Jan. 7, 2025
DNA
barcoding
and
metabarcoding
are
now
powerful
tools
for
studying
biodiversity
especially
the
accurate
identification
of
large
sample
collections
belonging
to
diverse
taxonomic
groups.
Their
success
depends
largely
on
resolution
sequences
used
as
barcodes
reliability
reference
databases.
For
wild
bees,
barcode
coverage
is
consistently
growing
in
volume,
but
some
incorrect
species
annotations
need
be
cared
for.
The
COI
(Cytochrome
Oxydase
subunit
1)
gene,
most
barcoding/metabarcoding
arthropods,
suffers
from
primer
bias
difficulties
covering
all
bee
using
classical
Folmer
primers.
We
present
here
a
curated
database
250
bp
mini-barcode
region
16S
rRNA
suitable
low-cost
bees
applications,
such
eDNA
analysis
or
sequencing
ancient
degraded
DNA.
Sequenced
specimens
were
captured
Occitania
(south-west
France)
morphologically
identified
by
entomologists,
with
total
530
individuals
171
19
genera.
A
customised
workflow
including
distance-tree
inferences
second
round
entomologist
observations,
when
necessary,
was
validation
348
mini-barcodes
148
species.
Amongst
them,
93
did
not
have
any
available
before
our
contribution.
This
high-quality
library
data
freely
scientific
community,
aim
facilitating
future
large-scale
characterisation
communities
context
pollinators'
decline.
Language: Английский
New data from the historical bee collection (Hymenoptera, Anthophila) of the Science Museum of the University of Coimbra and additional faunistic updates for Portugal
Journal of Hymenoptera Research,
Journal Year:
2025,
Volume and Issue:
98, P. 165 - 194
Published: Feb. 10, 2025
Entomological
collections
hold
significant
scientific
potential,
especially
understudied
taxa
of
historical
from
important
biogeographical
regions,
such
as
bees
in
Portugal.
The
Science
Museum
the
University
Coimbra
(MCUC)
holds
largest
collection
Portuguese
bees,
primarily
because
M.A.
Diniz,
one
few
bee
experts,
was
based
this
institution
during
20
th
century,
and
several
are
stored
there
that
period
before.
Nevertheless,
most
records
were
unpublished
unrevised.
In
work,
we
revised
databased
(via
GBIF)
13,374
(11,053
unpublished),
covering
464
species,
which
11
new
to
fauna.
All
9
type
specimens
species
(1
holotype,
2
syntypes,
5
paratypes
1
dismissed
type)
reported
photographed.
We
also
provide
an
update
Anthophila
checklist
for
continental
Portugal,
with
three
additional
unreported
other
institutions
(for
a
total
14
species)
removal
or
confirmation
exclusion
19
previously
producing
fauna
736
species.
Language: Английский
Resolving issues in the genus Dioxys (Hymenoptera, Megachilidae, Dioxyini) in the West Palaearctic with a new identification key
ZooKeys,
Journal Year:
2025,
Volume and Issue:
1226, P. 261 - 302
Published: Feb. 10, 2025
The
bee
genus
Dioxys
is
widely
distributed
across
the
Holarctic
from
Mediterranean
basin
to
western
North
America
but
species-poor,
and
individual
species
can
prove
challenging
identify.
Consequently,
there
has
been
a
lack
of
consensus
as
how
many
actually
exist.
In
West
Palaearctic,
number
varied
six
ten,
depending
on
worker.
Due
previously
incorrect
assessment
publication
dates,
rotundatus
Pérez,
1884,
sp.
resurr.
restored
senior
synonym
moestus
Costa,
syn.
nov.
relationship
between
this
atlanticus
Saunders,
1904
clarified,
with
latter
restricted
islands
Gran
Canaria
Tenerife
(Spain).
rufipes
Morawitz,
1875
considered
part
Palaearctic
fauna,
replacing
“
D.
”
sensu
Warncke
(1977)
in
eastern
Mediterranean.
montanus
Heinrich,
1977,
revalidated
synonymy
cinctus
(Jurine,
1807).
pumilus
Gerstäcker,
1869
found
consist
four
species,
(eastern
Mediterranean),
varipes
De
Stefani,
1887,
(western
cypriacus
Popov,
1944,
(Cyprus),
hermonensis
(Israel:
Mount
Hermon).
A
neotype
designated
for
,
falsificus
Engel,
2023,
synonymised
it.
This
contribution
produces
total
13
region,
illustrates
degree
which
persistent
taxonomic
problems
exist
even
within
small
genera.
Language: Английский
Four new species of Megachilidae from Corsica and Sardinia (Hymenoptera: Apoidea)
Annales de la Société entomologique de France (N S ),
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 24
Published: Nov. 20, 2024
In
a
recent
catalogue
of
Megachilidae
from
Corsica,
four
potentially
new
species
were
noted
and
are
described
here.
Aglaoapis
sparsepunctata
n.
sp.,
the
second
European
subgenus
Cameron,
1901,
is
Corsican
mountains.
Chelostoma
(Foveosmia)
incisa
sp.
with
an
intermediate
morphology
between
C.
distinctum
(Stöckhert,
1929)
campanularum
(Kirby,
1802).
Hoplitis
(Alcidamea)
agnielae
vicariant
H.
acuticornis
(Dufour
&
Perris,
1840).
(Hoplitis)
legoffi
member
adunca
complex
appears
to
be
restricted
coastal
environments.
Language: Английский