Authorea (Authorea),
Год журнала:
2023,
Номер
unknown
Опубликована: Ноя. 9, 2023
Differences
in
the
number
of
alien
plant
species
different
locations
may
reflect
climatic
and
other
controls
that
similarly
affect
native
and/or
propagule
pressure
accompanied
with
delayed
spread
from
point
introduction.
We
set
out
to
examine
these
alternatives
for
Himalayan
plants,
a
phylogenetic
framework.
build
database
distributions
Himalaya.
Focusing
on
well
documented
regions
Jammu
&
Kashmir
(west)
Bhutan
(east)
we
compare
(1)
richness
patterns,
(2)
degree
clustering,
(3)
extent
which
species-poor
are
subsets
species-rich
regions,
(4)
continental
affinities/source.
document
1,470
(at
least
600
naturalised),
comprise
~14%
vascular
plants
known
Alien
tropical
affinities
decline
elevation
at
high
elevations
form
subset
those
lower
elevations,
supporting
location
introduction
as
an
important
driver
patterns.
Separately,
especially
rich
also
species,
suggesting
role
climate
(high
productivity)
determining
both
richness.
find
no
support
proposition
human
disturbance
or
resistance
invasion
by
distributions.
Results
imply
ongoing
expansion
low
sources,
some
highly
invasive.
Earth-Science Reviews,
Год журнала:
2024,
Номер
255, С. 104844 - 104844
Опубликована: Июнь 21, 2024
The
"Great
Acceleration"
of
the
mid-20th
century
provides
causal
mechanism
Anthropocene,
which
has
been
proposed
as
a
new
epoch
geological
time
beginning
in
1952
CE.
Here
we
identify
key
parameters
and
their
diagnostic
palaeontological
signals
including
rapid
breakdown
discrete
biogeographical
ranges
for
marine
terrestrial
species,
changes
to
ecologies
resulting
from
climate
change
ecological
degradation,
spread
exotic
foodstuffs
beyond
range,
accumulation
reconfigured
forest
materials
such
medium
density
fibreboard
(MDF)
all
being
symptoms
Great
Acceleration.
We
show:
1)
how
Anthropocene
successions
North
America,
South
Africa,
Oceania,
Europe,
Asia
can
be
correlated
using
signatures
highly
invasive
species
that
demonstrate
growing
interconnectivity
human
systems;
2)
unique
depositional
settings
landfills
may
concentrate
remains
organisms
far
geographical
range
environmental
tolerance;
3)
preserve
long-lived,
record
within
post-mid-20th
deposits.
Collectively
these
provide
global
signature
is
distinct
past
records
deep-time
biotic
change,
those
Holocene.
Global Ecology and Conservation,
Год журнала:
2023,
Номер
48, С. e02698 - e02698
Опубликована: Окт. 20, 2023
In
an
era
of
the
Post-2020
global
biodiversity
framework,
empirical
synthesis
data
spanning
across
broad
biogeographic
scales
is
urgently
required
to
inform
policy
and
management.
Although
availability
access
databases
have
recently
improved,
yet
majority
these
lack
sufficient
geographic
coverage,
especially
from
hotspot
regions
developing
countries,
thereby
severely
limiting
their
utility
generalizability
globe.
Here,
we
present
a
comprehensive
tree
database
(2199
species)
Indian
Himalayan
Region
(IHR)
–
home
two
hotspots
collated
quantitative
234
studies
published
over
last
one
century.
Taking
leverage
this
novel
database,
unravel
patterns
diversity,
distribution,
drivers
trees
IHR.
We
found
that
species
richness,
compositional
similarity,
distribution
patterns,
biome
affiliation
diversity
vary
significantly
IHR,
with
nearly
half
affiliated
wet
tropical
biome.
Of
10
climatic
environmental
used,
annual
mean
temperature
elevation
width
in
combination
best
predicted
variation
also
identify
117
endemic
88
threatened
which
merit
conservation
priority.
Our
findings
significant
formulating
management
restoration
strategies
for
Overall,
our
study
showcases
model
wide
implications
planning
tree-focussed
programs
restore
degraded
forest
landscapes
plantation-specific
climate
change
mitigation
region.
Ecology and Evolution,
Год журнала:
2024,
Номер
14(2)
Опубликована: Фев. 1, 2024
Abstract
Differences
in
the
number
of
alien
plant
species
different
locations
may
reflect
climatic
and
other
controls
that
similarly
affect
native
and/or
propagule
pressure
accompanied
with
delayed
spread
from
point
introduction.
We
set
out
to
examine
these
alternatives
for
Himalayan
plants,
a
phylogenetic
framework.
build
database
distributions
Himalaya.
Focusing
on
well‐documented
regions
Jammu
&
Kashmir
(west)
Bhutan
(east)
we
compare
(1)
richness
patterns,
(2)
degree
clustering,
(3)
extent
which
species‐poor
are
subsets
species‐rich
(4)
continental
affinities/source.
document
1470
(at
least
600
naturalised),
comprise
~14%
vascular
plants
known
Alien
tropical
affinities
decline
elevation
at
high
elevations
form
subset
those
lower
elevations,
supporting
location
introduction
as
an
important
driver
patterns.
Separately,
especially
rich
also
species,
suggesting
role
climate
(high
productivity)
determining
both
richness.
find
no
support
proposition
variance
human
disturbance
or
numbers
correlate
distributions.
Results
imply
ongoing
expansion
low
sources,
some
highly
invasive.
Ecological Indicators,
Год журнала:
2024,
Номер
166, С. 112431 - 112431
Опубликована: Авг. 2, 2024
From
an
ecological
standpoint,
saline
and
alkaline
habitats
are
considered
as
extreme
environments
for
vascular
plants
because
salinity
alkalinity
serve
primary
structuring
factors
that
significantly
influence
the
species
richness
of
vegetation
cover.
The
non-alkaline
stress
on
primarily
results
from
interactions
NaCl,
Na2SO4,
other
neutral
salts,
whereas
is
caused
by
NaHCO3
Na2CO3,
accompanied
increase
in
pH.
Some
halophytes
salt-tolerant
well-adapted
to
such
permanent
abiotic
stress.
Surprisingly,
they
able
survive
reproduce
under
environmental
conditions
more
than
200
mM
NaCl
concentration
also
live
permanently
conditions.
aim
this
study
was
identify
characteristic
indicator
plant
soda
wetland
habitats,
analyze
relationship
between
chemical
composition
water
plant's
saturation
index.
Based
obtained
we
can
conclude
identified
high
may
grow
Two
groups
were
distinguished
based
alkalinity:
"Saline
group"
includes
all
types
halotolerant
species,
while
"Soda
obligate
alkalophytes
alkalotolerant
species.
However,
diversity
environment
bigger
environment,
most
both
habitats.
It
possible
three
requiring
(Aster
tripolium,
Puccinellia
limosa,
Suaeda
pannonica)
dominantly
(Juncus
maritimus,
Salicornia
prostrata,
salsa).
Different
independent
variables
have
been
analyzed
understand
their
index
calculating
percentage
entire
region.
has
a
significant
positive
with
Mean
Temperature
Warmest
Quarter,
Topsoil
Sand,
Clay
fraction
variables,
there
negative
Solid
Earth
surface
heat
flow,
heating
extremity
environment.
Identification
alkalization
makes
it
determine
type
soil,
bodies
rapid
biomonitoring
method
visual
observation,
without
use
expensive
equipment
laboratory
tests.
