Taxonomic diversity and abundance of enchytraeids (Annelida, Clitellata, Enchytraeida) in the Northern Palaearctic. 2. European Russia
Biodiversity Data Journal,
Journal Year:
2025,
Volume and Issue:
13
Published: Feb. 24, 2025
Enchytraeids,
commonly
known
as
potworms,
are
small
oligochaetes
found
worldwide
in
various
terrestrial,
freshwater
and
marine
ecosystems.
Despite
their
crucial
role
ecosystem
functioning,
the
diversity
abundance
of
Enchytraeidae
seldom
studied
due
to
labour-intensive
process
species
identification.
This
study
aims
address
this
gap
expand
knowledge
on
distribution
enchytraeids
within
Northern
Palaearctic
Region.
The
provided
dataset
represents
latest
most
comprehensive
field
sampling
enchytraeid
communities
European
part
Russia
Palaearctic.
It
consists
exclusively
an
original
set
soil
samples
systematically
collected
across
region
from
2019
2023,
without
any
previously
published
data
included.
includes
occurrences
204
georeferenced
sites,
encompassing
73
17
genera,
totalling
61,254
records,
with
1,419
records
having
"present''
occurrence
status.
comprehensive,
species-specific
(Darwin
Core
Archive
-
DwC-A)
provides
insights
into
terrestrial
a
wide
geographic
area,
covering
eastern
sector
East
Plain
North
Caucasus
Region
Compiled
campaigns,
is
essential
for
exploring
understanding
local
regional
over
time
space.
also
serves
valuable
resource
monitoring
conserving
biodiversity
region.
Language: Английский
Trophic Position of the White Worm (Enchytraeus albidus) in the Context of Digestive Enzyme Genes Revealed by Transcriptomics Analysis
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(9), P. 4685 - 4685
Published: April 25, 2024
To
assess
the
impact
of
Enchytraeidae
(potworms)
on
functioning
decomposer
system,
knowledge
feeding
preferences
enchytraeid
species
is
required.
Different
food
can
be
explained
by
variations
in
enzymatic
activities
among
different
species,
as
there
are
no
significant
differences
morphology
or
anatomy
their
alimentary
tracts.
However,
it
crucial
to
distinguish
between
contribution
microbial
enzymes
and
animal’s
digestive
capacity.
Here,
we
computationally
analyzed
endogenous
enzyme
genes
Enchytraeus
albidus.
The
analysis
was
based
RNA-Seq
COI-monohaplotype
culture
(PL-A
strain)
specimens,
utilizing
transcriptome
profiling
determine
trophic
position
species.
We
also
corroborated
results
obtained
using
transcriptomics
data
from
genetically
heterogeneous
freeze-tolerant
strains.
Our
revealed
that
E.
albidus
expresses
a
wide
range
glycosidases,
including
GH9
cellulases
specific
SH3b-domain-containing
i-type
lysozyme,
previously
described
earthworm
Eisenia
andrei.
Therefore,
combines
traits
both
primary
decomposers
(primary
saprophytophages)
secondary
(sapro-microphytophages/microbivores)
defined
an
intermediate
decomposer.
Based
assemblies
publicly
available
reads,
found
close
homologs
for
these
lysozymes
various
clitellate
taxa,
Crassiclitellata
Enchytraeidae.
Language: Английский
Impacts of climate change–simulated flooding and drought events–on terrestrial invertebrates (Enchytraeids and Collembolans)
Soil Ecology Letters,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Oct. 30, 2024
Abstract
Impacts
of
soil
moisture
levels
from
10%
to
100%
on
two
invertebrates.
E.
crypticus
and
F.
Candida
survived
at
extreme
scenarios
(10%
100%).
For
both
species,
reproduction
was
severely
reduced
in
scenarios.
Higher
adaptative
phenotypic
plasticity
for
compared
.
Knowledge
impacts
climate
change
invertebrate
communities
is
scarce.
Amongst
the
biggest
challenges
are
increase
temperature
arid
regions,
while
same
time,
other
parts
planet,
precipitation
events
flooding
occur.
The
aim
present
study
investigate
drought
Enchytraeus
Folsomia
candida
,
model
ecotoxicology
test-species
(OECD)
were
used
assess
performance
(survival,
reproduction,
size)
LUFA
2.2
moistened
10%,
20%,
30%,
40%,
50%,
60%,
70%,
80%,
90%,
water
holding
capacity
(WHC).
Overall,
species
had
high
tolerance
scenarios,
with
survival
threshold
being
between
90%
moisture.
Reproduction
decreased
⩽
30%
>70%
In
there
a
decrease
adults’
size,
morphological
adaptations
observed
support
evidence
but
highest
A
redistribution
can
be
expected
occur,
this
under
future
new
more
tolerant
prevail
different
habitats.
This
will
impact
not
only
biodiversity
structure,
also
its
function.
Language: Английский