Aquatic Conservation Marine and Freshwater Ecosystems,
Год журнала:
2024,
Номер
34(12)
Опубликована: Дек. 1, 2024
ABSTRACT
Many
years
of
land
use
transformation
within
river
valleys
have
drastically
changed
these
ecosystems.
Black
poplar
is
a
tree
species
characteristic
riparian
habitats,
but
due
to
specific
environmental
requirements,
their
populations
difficulties
with
natural
regeneration.
Here,
we
genotyped
623
black
individuals
from
four
located
along
different
sections
the
Vistula
River.
This
river,
which
largest
in
Poland,
characterized
by
variable
degrees
regulation
and
its
environment.
Each
population
consisted
group
mature
trees
naturally
regenerated
trees.
Our
main
goal
was
assess
differences
between
gene
pools
regenerations.
The
results
showed
that
all
were
high
comparable
values
parameters
genetic
diversity.
Despite
this,
distinguished
two
three
clusters
(depending
on
method).
differentiation
among
regeneration
groups
almost
twice
as
groups.
most
regenerations
diverged
except
for
one
population.
also
only
where
fully
generative
occurred,
growing
least
transformed
middle
section
river.
research
confirms
need
monitor
seedlings
saplings
major
rivers
conduct
molecular
analyses
pools.
It
can
be
assumed
lack
suitable
areas
seed
germination,
will
reproduce
mainly
vegetatively,
may
way
ensure
survival
species.
However,
adaptive
potential
youngest
generations
unknown,
especially
face
progressive
climate
change.
We
conclude
preserve
resources,
ex
situ
protection
form
local
clone
archives
necessary.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Окт. 29, 2024
Due
to
their
complex
life
cycles
geophytes
are
often
neglected
in
conservation
programs,
despite
they
important
elements
of
early
spring
communities.
Their
cycle
is
strongly
affected
by
weather
parameters,
i.e.
temperature,
precipitation,
and
light,
but
the
effects
these
parameters
contradictory
show
high
intra-annual
variability
even
within
species.
Deeper
knowledge
about
abiotic
factors
affecting
population
dynamics
needed
support
designation
effective
plans.
We
aimed
explore
link
between
Colchicum
bulbocodium,
an
endangered
strictly
protected
geophyte.
monitored
three
stages
(flowering,
growing,
fruiting)
1069
individuals
permanent
plots
for
six
consecutive
years.
Our
results
showed
that
C.
bulbocodium
was
related
actual
parameters;
lagged
effect
previous
year
weaker.
Increasing
temperature
lack
cold
periods
had
negative
on
all
stages.
highlighted
estimation
based
number
flowering
a
single
can
underestimate
size
40-83%.
Monitoring
years
following
wet
springs
winters
could
increase
accuracy
estimations
individuals.
Aquatic Conservation Marine and Freshwater Ecosystems,
Год журнала:
2024,
Номер
34(12)
Опубликована: Дек. 1, 2024
ABSTRACT
Many
years
of
land
use
transformation
within
river
valleys
have
drastically
changed
these
ecosystems.
Black
poplar
is
a
tree
species
characteristic
riparian
habitats,
but
due
to
specific
environmental
requirements,
their
populations
difficulties
with
natural
regeneration.
Here,
we
genotyped
623
black
individuals
from
four
located
along
different
sections
the
Vistula
River.
This
river,
which
largest
in
Poland,
characterized
by
variable
degrees
regulation
and
its
environment.
Each
population
consisted
group
mature
trees
naturally
regenerated
trees.
Our
main
goal
was
assess
differences
between
gene
pools
regenerations.
The
results
showed
that
all
were
high
comparable
values
parameters
genetic
diversity.
Despite
this,
distinguished
two
three
clusters
(depending
on
method).
differentiation
among
regeneration
groups
almost
twice
as
groups.
most
regenerations
diverged
except
for
one
population.
also
only
where
fully
generative
occurred,
growing
least
transformed
middle
section
river.
research
confirms
need
monitor
seedlings
saplings
major
rivers
conduct
molecular
analyses
pools.
It
can
be
assumed
lack
suitable
areas
seed
germination,
will
reproduce
mainly
vegetatively,
may
way
ensure
survival
species.
However,
adaptive
potential
youngest
generations
unknown,
especially
face
progressive
climate
change.
We
conclude
preserve
resources,
ex
situ
protection
form
local
clone
archives
necessary.
