Journal of Mammalogy,
Год журнала:
2022,
Номер
104(1), С. 146 - 158
Опубликована: Ноя. 11, 2022
Abstract
Faunivorous
mammals
with
simple
guts
are
thought
to
rely
primarily
on
endogenously
produced
enzymes
digest
food,
in
part
because
they
lack
fermentation
chambers
for
facilitating
mutualistic
interactions
microbes.
However,
variation
microbial
community
composition
along
the
length
of
gastrointestinal
tract
has
yet
be
assessed
faunivorous
species
guts.
We
tested
differences
bacterial
taxon
abundances
and
compositions
between
small
intestines
colons
26
individuals
representing
four
shrew
genus
Crocidura.
sampled
these
hosts
from
a
single
locality
Sulawesi
Island,
Indonesia,
control
potential
geographic
temporal
variation.
Bacterial
differed
significantly
two
gut
regions
members
family
Mycoplasmataceae
contributed
substantially
differences.
Three
operational
taxonomic
units
(OTUs)
an
unclassified
this
were
more
abundant
intestine,
whereas
1
OTU
Ureaplasma
was
colon.
Species
encode
enzyme
that
degrades
urea,
metabolic
byproduct
protein
catabolism.
Additionally,
Hafnia–Obesumbacterium
OTU,
known
produce
chitinase
bat
tracts,
also
colon
compared
intestine.
The
presence
putative
chitinase-
urease-producing
bacteria
suggests
mutualisms
microorganisms
play
role
protein-rich,
diets
mammals.
Systematic Biology,
Год журнала:
2023,
Номер
72(4), С. 885 - 911
Опубликована: Апрель 19, 2023
Abstract
The
biota
of
Sulawesi
is
noted
for
its
high
degree
endemism
and
substantial
levels
in
situ
biological
diversification.
While
the
island’s
long
period
isolation
dynamic
tectonic
history
have
been
implicated
as
drivers
regional
diversification,
this
has
rarely
tested
context
an
explicit
geological
framework.
Here,
we
provide
a
tectonically
informed
biogeographical
framework
that
use
to
explore
diversification
flying
lizards
(the
Draco
lineatus
Group),
radiation
endemic
surrounding
islands.
We
employ
inferring
cryptic
speciation
involves
phylogeographic
genetic
clustering
analyses
means
identifying
potential
species
followed
by
population
demographic
assessment
divergence-timing
rates
bi-directional
migration
confirming
lineage
independence
(and
thus
status).
Using
approach,
phylogenetic
mitochondrial
sequence
data
obtained
613
samples,
50-SNP
set
370
1249-locus
exon-capture
106
samples
indicate
current
taxonomy
substantially
understates
true
number
species,
both
arrested
speciations
taken
place,
ancient
hybridization
confounds
do
not
explicitly
account
reticulation.
Group
appears
comprise
15
species—9
on
proper
6
peripheral
common
ancestor
group
colonized
~11
Ma
when
proto-Sulawesi
was
likely
composed
two
ancestral
islands,
began
radiate
~6
new
islands
formed
were
via
overwater
dispersal.
enlargement
amalgamation
many
these
proto-islands
into
modern
Sulawesi,
especially
during
past
3
Ma,
motion
interactions
once-isolated
lineages
came
secondary
contact,
some
which
resulted
merger,
others
surviving
present.
[Genomics;
Indonesia;
introgression;
mitochondria;
phylogenetics;
phylogeography;
genetics;
reptiles.]
Molecular Ecology Resources,
Год журнала:
2024,
Номер
24(7)
Опубликована: Апрель 26, 2024
Abstract
Phylogenetic
studies
now
routinely
require
manipulating
and
summarizing
thousands
of
data
files.
For
most
these
tasks,
currently
available
software
requires
considerable
computing
resources
substantial
knowledge
command‐line
applications.
We
develop
an
ultrafast
memory‐efficient
software,
SEGUL,
that
performs
common
phylogenomic
dataset
manipulations
calculates
statistics
essential
features.
Our
is
as
standalone
interface
(CLI)
graphical
user
(GUI)
applications,
a
library
for
Rust,
R
Python,
with
possible
support
other
languages.
The
CLI
versions
run
native
on
Windows,
Linux
macOS,
including
Apple
ARM
Macs.
GUI
version
extends
to
include
mobile
iOS,
iPadOS
Android
operating
systems.
SEGUL
leverages
the
high
performance
Rust
programming
language
offer
fast
execution
times
low
memory
footprints
regardless
size
platform
choice.
inclusion
minimizes
bioinformatics
barriers
phylogenomics
while
SEGUL's
efficiency
reduces
economic
by
allowing
analysis
inexpensive
hardware.
systems
further
enables
teaching
where
access
power
limited.
Zootaxa,
Год журнала:
2025,
Номер
5566(3), С. 535 - 564
Опубликована: Янв. 8, 2025
The
marsupial
Family
Acrobatidae
includes
the
smallest
gliding
species
in
monotypic
Acrobates,
found
only
eastern
Australia,
and
an
equally
small
non-gliding
another
genus
Distoechurus,
New
Guinea.
We
applied
molecular
genetic
analysis
to
Acrobates
assess
systematic
significance
of
variation
superficial
external
characters
tail
hindfoot
(pes).
Deep
divergence
mitochondrial
nuclear
genes
demonstrated
broad
sympatry
two
consistent
with
prior
morphological
diagnoses.
Morphological
assessment
museum
vouchers
showed
that
their
distributions
overlap
extensively
South
Wales
Victoria
include
locations
where
a
range
biological
research
was
conducted
on
assumption
presence
single
species.
Many
these
studies
cannot
be
reassessed
because
neither
nor
tissue
suitable
for
identification
were
collected.
Intriguingly,
acrobatids
are
group
internal
ear
discs,
show
demonstrable
differences
morphology
this
structure,
which
needs
established.
Both
occur
widely
eucalypt
forests
south-eastern
appear
subject
growing
threat
from
bushfires
likely
aggravated
by
anthropogenic
climate
change.
Swiss Journal of Palaeontology,
Год журнала:
2025,
Номер
144(1)
Опубликована: Апрель 14, 2025
Abstract
We
describe
an
almost
complete
fossil
cranium
of
a
shrew,
identified
as
Asoriculus
gibberodon
(Petényi,
1864)
from
the
early
Pliocene
Jradzor
site,
Armenia.
The
sedimentary
unit,
which
yielded
specimen,
is
11-m-thick
package
composed
white
thinly-parallel-laminated
diatomite
laying
at
base
section.
It
was
dated
4.29
±
0.09
Ma
based
on
magnetostratigraphy
and
40
Ar/
39
Ar
radioisotopic
dating
tephra
layer
located
top
package.
skull
shows
several
synapomorphies
that
allow
its
assignment
to
Soricinae
subfamily
Neomyini
tribe.
Among
Neomyini,
far
anatomy
known,
specimen
most
similar
Soriculus
Episoriculus
.
Both
petrosal
bones
are
preserved
studied
thanks
3D
modelling
their
morphology
CT-scan.
Compared
with
other
eulipotyphlans,
bony
labyrinth
A.
typical
soricids.
Its
also
indicates
high-frequency
auditory
capability
modern
shrews
but
cannot
confirm
echolocation
system
neither
does
it
any
feature
can
be
related
specific
locomotory
adaption
or
ecological
characteristic.
discovery
this
inside
diatomites,
corresponding
distal
lacustrine
environment,
raises
question
possible
semi-aquatic
adaptation
species
(this
being
known
for
extant
family).
However,
,
two
genera
closest
cranial
not
clearly
distinguished
Neomys
shrews.
inner
ear
more
terrestrial
despite
general
similarities
among
soricids
suggests
echolocation-based
orientation
using
high
frequencies
navigate
through
low
vegetation,
often
essential
in
metabolic
rate
organisms
reduce
energy
expenditure.
therefore
propose
locomotion
consistent
previously
proposed
paleoecological
model,
depicting
inhabiting
wet
humid
environments
close
proximity
permanent
bodies
water.
Journal of Mammalogy,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 18, 2025
Abstract
Freezing
has
proven
to
be
an
ideal
means
for
preserving
tissues
molecular
research
on
mammals.
Here,
we
trace
the
origins,
early
practices,
and
rapid
growth
of
frozen
tissue
collections
better
understand
history,
science,
people
that
led
development
recent
these
internationally
valuable
resources.
Frozen
grew
gradually
from
rudimentary
beginnings
in
1970s
but
have
expanded
rapidly
years,
providing
data
studies
biodiversity,
phylogenetics,
emerging
pathogens,
isotopes,
contaminants,
among
other
avenues
research.
Over
decades,
field
collecting
storage
changed
significantly.
In
mid-1980s,
example,
polymerase
chain
reaction—which
allowed
researchers
amplify
a
specific
segment
DNA
many
times
over—reinforced
importance
resources
burgeoning
genetics.
Ultracold
mechanical
freezers
hold
at
−80
°C
became,
remain,
popular
because
their
ease
use
delayed
degradation.
Portable
liquid
nitrogen
dewars
evolved
metal
tanks
compact
“dry
shippers”
with
absorbent
liner
can
maintain
low
temperatures
30
d
without
being
refilled
are
commonplace
field.
Larger,
vapor-phase
cryotanks
becoming
increasingly
long-term
preservation
they
safeguard
thermal
fluctuation
may
induced
by
temporary
electrical
failures.
More
than
1.5
million
samples
associated
museum
voucher
preparations
now
preserved
worldwide,
allowing
in-depth
study
mammalian
genetics
investigation
questions
were
unimaginable
even
few
years
ago.
Abstract
I
review
unresolved
cases
of
homonymy
affecting
extant
mammals,
where
the
name
a
valid
species
has
previously
been
used
for
different
in
same
genus.
In
12
cases,
designate
senior
homonym
as
nomen
oblitum
to
protect
stability
currently
recognized
species.
Four
other
require
either
action
by
International
Commission
Zoological
Nomenclature
or
introduction
replacement
name.
also
discuss
several
potential
exists,
but
older
is
unavailable
spelled
differently.
Abstract
Phalangerids
in
Sulawesi
occur
at
the
westernmost
extent
of
marsupial
distribution
Wallacea
and
are
facing
escalating
anthropogenic
pressures.
The
ecology
Vulnerable
bear
cuscus
Ailurops
ursinus
,
one
four
endemic
phalangerids
Sulawesi,
is
poorly
understood
its
decline
unknown.
This
study
aimed
to
build
first
habitat
suitability
model
for
species
South
identify
priority
areas
conservation.
We
used
maximum
entropy
modelling
predict
species’
potential
distribution,
overlaid
resulting
map
with
regulatory
mining
activity
maps.
Our
predicted
only
7.5%
(143,682
ha)
total
area
be
potentially
suitable
cuscus,
predominantly
scattered
forest
patches,
some
which
affected
by
active
or
frequent
poaching.
Land-cover
type
was
most
important
predictor
distribution.
findings
suggest
lack
legal
protection
should
reconsidered,
we
recommend
reassessed
IUCN
Red
List.
forested
southern
have
decreased
12.5%
since
2000,
over
half
this
occurring
2015,
preventing
northwards
dispersal
restricting
a
fraction
province's
protected
forests.
Immediate
intervention
necessary
combat
poaching,
slow
expansion
increase
landscape
connectivity,
prevent
further
reduction
current
habitat.
Pathogens,
Год журнала:
2023,
Номер
12(6), С. 781 - 781
Опубликована: Май 30, 2023
Three
species
of
white-toothed
shrews
the
order
Eulipotyphla
are
present
in
central
Europe:
bicolored
(Crocidura
leucodon),
greater
russula)
and
lesser
suaveolens)
shrews.
Their
precise
distribution
Germany
is
ill-defined
little
known
about
them
as
reservoirs
for
zoonotic
pathogens
(Leptospira
spp.,
Coxiella
burnetii,
Brucella
Anaplasma
phagocytophilum,
Babesia
Neoehrlichia
mikurensis
Bartonella
spp.).
We
investigated
372
Crocidura
spp.
from
(n
=
341),
Austria
18),
Luxembourg
2)
Slovakia
11).
West
European
hedgehogs
(Erinaceus
europaeus)
were
added
to
compare
presence
co-occurring
insectivores.
russula
distributed
mainly
western
C.
suaveolens
north-eastern
Germany.
leucodon
occurred
overlapping
ranges
with
other
Leptospira
DNA
was
detected
28/227
2/78
samples.
Further
characterization
revealed
that
kirschneri
had
a
sequence
type
(ST)
100.
spleen
tissue
2/213
Hedgehogs
carried
L.
(ST
100),
interrogans
24),
A.
phagocytophilum
two
species.
This
study
improves
knowledge
current
identifies
carrier
kirschneri.
However,
seem
play
little-to-no
role
circulation
arthropod-borne
investigated.
