Ecosphere,
Journal Year:
2020,
Volume and Issue:
11(1)
Published: Jan. 1, 2020
Abstract
Animals
have
evolved
strategies
to
identify
areas
that
provide
the
resources
and
environmental
conditions
they
need
survive
reproduce.
To
explore
how
invasions
by
nonnative
plants
might
disrupt
this
fundamental
process,
we
evaluated
settlement
patterns
of
migratory
birds
breed
in
grasslands
being
invaded
two
structurally
different
congeneric
grasses.
We
established
40,
2.25‐ha
plots
across
an
area
where
composition
each
grass
ranged
from
0%
nearly
100%
total
cover,
which
provided
individuals
with
full
range
alternatives
species
composition.
then
used
temporal
sequence
territories
infer
their
habitat
preferences.
responses
most
common
settled
area,
confamilial
sparrows
differed
markedly
breadth.
The
narrower
breadth,
grasshopper
sparrow
(
Ammodramus
savannarum
ammolegus
),
first
dominated
native
grasses,
height
cover
were
substantially
lower
than
As
period
progressed,
increasingly
smaller
Eragrostis
lehmanniana
but
never
larger
E.
curvula
).
In
contrast,
broader
Botteri's
Peucaea
botterii
arizonae
without
regard
composition,
likely
because
both
grasses
within
structural
grassland
generalist.
Our
results
demonstrate
plants,
changes
use
animals
can
reflect
interaction
between
breadth
amount
contrast
invading
plant
are
displaced.
This
provides
a
mechanism
explain
variation
among
has
consequences
for
broad‐scale
geographic
distribution
many
species.
Ecology and Evolution,
Journal Year:
2018,
Volume and Issue:
8(22), P. 11190 - 11198
Published: Oct. 30, 2018
Abstract
In
the
last
decades,
thousands
of
investigations
confirmed
detrimental
effects
species
translocated
by
man
outside
their
native
ranges
(nonindigenous
species,
or
NIS).
However,
results
concluding
that
many
NIS
have
null,
neutral,
positive
impacts
on
biota
and
human
interests
are
as
common
in
scientific
literature
those
point
at
baneful
impacts.
Recently,
several
scholars
confronted
stand
origin
per
se
is
not
a
reliable
indicator
negative
effects,
suggesting
such
conclusions
expression
denialism,
often
led
spurious
purposes,
numbers
increasing.
When
assessed
context
growing
interest
introduced
proportion
academic
publications
claiming
pose
no
threats
to
environment
social
economic
extremely
low,
has
increased
since
1990.
The
widely
prevailing
notion
effectively
potentially
harmful
does
conflict
with
fact
most
mixed
(negative,
positive)
based
solid
grounds,
reports
neutral
should
be
labeled
manipulative
misleading
unless
proven
otherwise,
even
if
they
may
hamper
in‐
funding
research
control
bioinvasion
programs.
American Journal of Botany,
Journal Year:
2018,
Volume and Issue:
105(1), P. 31 - 41
Published: Jan. 1, 2018
Patterns
of
fruiting
phenology
in
temperate
ecosystems
are
poorly
understood,
despite
the
ecological
importance
for
animal
nutrition
and
seed
dispersal.
Herbarium
specimens
represent
an
under-utilized
resource
investigating
geographical
climatic
factors
affecting
times
within
species,
patterns
among
differences
between
native
non-native
invasive
species.We
examined
over
15,000
herbarium
specimens,
collected
housed
across
New
England,
found
3159
with
ripe
fruits,
from
1849-2013.
We
37
18
woody
plant
species
common
to
England.
compared
dates
analyzed
how
varies
temperature,
space,
time.Spring
temperature
year
explained
a
small
but
significant
amount
variation
dates.
Accounting
moderate
phylogenetic
signal
phenology,
fruited
26
days
later
on
average
than
significantly
greater
standard
deviations.Herbarium
can
be
used
detect
species.
However,
intraspecific
by
temporal,
geographic,
predictors
is
small,
due
combination
low
temporal
resolution
protracted
nature
fruiting.
Later
combined
delays
autumn
bird
migrations
may
increase
likelihood
that
migratory
birds
will
consume
disperse
seeds
England
into
year.
Global Change Biology,
Journal Year:
2019,
Volume and Issue:
25(11), P. 3694 - 3705
Published: Aug. 7, 2019
Abstract
Despite
our
growing
understanding
of
the
impacts
invasive
plants
on
ecosystem
structure
and
function,
important
gaps
remain,
including
whether
native
exotic
species
respond
differently
to
plant
invasion.
This
would
elucidate
basic
ecological
interactions
inform
management.
We
performed
a
meta‐analytic
review
effects
resident
animals.
found
that
reduced
abundance
native,
but
not
exotic,
varied
by
animal
phyla,
with
reducing
annelids
chordates,
mollusks
or
arthropods.
dissimilar
among
“wet”
“dry”
ecosystems,
trophic
levels.
Additionally,
impact
increased
over
time,
this
did
vary
nativity.
Our
no
studies
considered
nativity
differences,
most
identify
animals
species.
call
for
more
rigorous
invaded
community
across
taxa,
importantly,
explicit
consideration
biogeographic
origin.
provide
an
first
insight
into
how
invasion,
consequences
which
may
facilitate
cascading
disruptions
further
exacerbating
global
change
function.
Ornithological Applications,
Journal Year:
2023,
Volume and Issue:
125(3)
Published: May 29, 2023
Abstract
Birds
must
contend
with
an
array
of
anthropogenic
threats
during
their
migratory
journeys.
Many
migrants
are
killed
due
to
encounters
artificial
light,
introduced
species,
pollutants,
and
other
hazards,
while
survivors
these
can
suffer
longer-lasting
negative
effects.
The
nonlethal
effects
on
migrating
birds
less
well
understood
than
direct
mortality,
yet
both
potentially
contribute
population
declines.
For
example,
building
collisions
frequently
kill
birds,
but
the
numbers
that
survive
impaired
ability
fly,
refuel,
or
navigate
destination
time
is
not
understood.
Though
immediately
fatal,
such
injuries
lead
delayed
mortality
and,
ultimately,
reduced
lifetime
reproductive
success.
Furthermore,
likely
encounter
multiple
journeys,
which
interact
synergistically
further
reduce
fitness.
instance,
light
pollution
attracts
disorients
migrants,
increasing
likelihood
window
strikes,
surviving
may
be
more
vulnerable
predation
from
predators.
While
considerable
attention
has
focused
lethal
threats,
here,
we
review
eight
types
migration,
interactions,
pathways
through
they
exert
fitness
costs.
In
doing
so,
identify
knowledge
gaps
suggest
areas
for
future
research.
absence
information,
propose
greatest
reduction
in
cumulative
impacts
hazards
will
achieved
by
addressing
threat
types,
like
at
night,
compound
impact
additional
threats.
Direct
sources
recognized
as
a
key
driver
declines,
full
understanding
human
activity
include
interacting
extend
beyond
immediate
en
route
influence
overall
migration
success
Frontiers in Plant Science,
Journal Year:
2018,
Volume and Issue:
9
Published: Feb. 13, 2018
Many
alien
plants
use
animal
vectors
for
dispersal
of
their
diaspores
(zoochory).
If
interact
with
native
disperser
animals,
this
can
interfere
animal-mediated
diaspores.
Interference
by
species
is
known
frugivorous
animals
dispersing
fruits
terrestrial
ingestion,
transport
and
egestion
(endozoochory).
However,
less
attention
has
been
paid
to
possible
interference
via
external
attachment
(ectozoochory,
epizoochory
or
exozoochory),
in
aquatic
ecosystems,
positive
effects
on
plants.
This
literature
study
addresses
the
following
hypotheses:
(1)
may
both
internal
diaspores;
(2)
also
occurs
ecosystems;
(3)
have
negative
The
studied
revealed
that
comprise
large
proportions
internally
externally
transported
Because
limited
space
ingested
adhering
diaspores,
affect
Alien
plant
form
all
dispersed
systems
be
either
(e.g.
through
competition
plants)
increased
abundance
dispersers,
changed
behavior
attracting
additional
species).
I
propose
many
future
research
directions,
because
understanding
whether
disrupt
facilitate
crucial
targeted
conservation
invaded
(aquatic)
communities.