Canadian Journal of Forest Research,
Journal Year:
2021,
Volume and Issue:
52(1), P. 129 - 134
Published: June 25, 2021
In
the
Northern
Hemisphere,
many
species
have
been
reported
to
greater
genetic
diversity
in
southern
populations
than
northern
—
ostensibly
due
migration
northward
following
last
glacial
maximum.
The
generality
of
this
pattern,
while
well-established
for
some
taxa,
remains
unclear
North
American
trees.
To
address
issue,
I
collected
published
population
genetics
data
73
tree
and
tested
whether
was
associated
with
latitude
or
longitude
geographic
trends
were
dispersal
traits,
range,
study
characteristics.
found
there
no
general
patterns
strength
gradients
not
any
western
regions
America
tended
more
that
declined
latitude,
but
most
had
significant
trend.
This
work
shows
trees
complex
individualistic
may
negate
explanation
by
particular
trait
range
characteristic.
This
guide
contains
a
compilation
of
information
from
multiple
coastal
States
in
the
Southeastern
United
States.Therefore,
some
links
and
resources
may
not
be
relevant
or
even
appropriate
for
your
location.Information
this
document
was
provided
by
USDA
various
Ecosistemas,
Journal Year:
2022,
Volume and Issue:
31(1), P. 2307 - 2307
Published: April 26, 2022
Las
invasiones
biológicas
son
un
componente
importante
del
cambio
global,
el
cual
está
amenazando
la
biodiversidad
y
servicios
ecosistémicos
planeta.
Para
gestionar
mitigar
los
impactos
es
disponer
de
herramientas
monitorización
que
permitan
evaluar
sistemática,
periódica,
rápida
eficazmente
las
especies
exóticas
a
diversas
escalas.
Los
inventarios
forestales
nacionales
(IFNs)
constituyen
una
herramienta
emergente
para
seguimiento
estructura
dinámica
bosques
grandes
escalas
espaciales.
IFNs
han
sido
usados
globalmente
diversidad
biológica,
distribución
aprovisionamiento
en
bosques.
Además,
tienen
potencial
estudiar
diversos
aspectos
biológicas,
tanto
desde
punto
vista
teórico
como
aplicado.
En
este
estudio
revisamos
bibliografía
disponible
conocer
qué
trabajos
sobre
se
publicado
utilizando
IFNs.
Encontramos
96
estudios
usaban
estado
o
Estados
Unidos
(74),
Europa
(20),
Canadá
(1)
Australia
(1).
Más
mitad
fueron
realizados
distribución,
riesgo
expansión,
demografía
plantas
(64).
restantes
utilizaron
investigar
expansión
daños
causados
por
otro
tipo
exóticas,
insectos
patógenos
fúngicos
protistas
(6),
(4),
ciervos
caracol
gigante
africano
Finalmente,
discutimos
oportunidades
limitaciones
IFNs,
resaltando
su
ampliar
teóricos
aplicados
biológicas.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: May 19, 2022
Abstract
The
emerald
ash
borer
(
Agrilus
planipennis
,
EAB)
invasion
in
North
America
threatens
most
American
Fraxinus
species,
including
green
F.
pennsylvanica
),
the
mostly
widely
distributed
species
(1,
2).
A
small
number
of
(“lingering
ash”,
0.1-1%)
survive
years
heavy
EAB
attack
(3)
and
kill
more
larvae
when
challenged
greenhouse
studies
than
susceptible
controls
(4).
We
combined
untargeted
metabolomics
with
intensive
phenotyping
segregating
F
1
progeny
from
or
lingering
parents
to
detect
chemotypes
associated
defensive
responses
EAB.
examined
three
contrasting
groups:
low
larval
(0-25%
killed),
high
(55-95%
killed)
uninfested.
Contrasting
these
groups
revealed
evidence
an
induced
response
Infested
trees
deployed
significantly
higher
levels
select
secoiridoids
uninfested
trees.
Within
infested
group,
(LLK)
individuals
(HLK)
individuals.
HLK
concentrations
metabolites
annotated
as
aromatic
alkaloids
compared
LLK
propose
a
two-part
model
for
wherein
every
individual
has
capacity
respond
EAB,
but
only
certain
mount
effective
defense,
killing
enough
prevent
minimize
lethal
damage
vascular
system.
Integration
structured
populations
reveals
multi-faceted
nature
defenses
naïve
host
against
invasive
species.
Significance
Long-lived
forest
employ
evolutionarily
conserved
templates
synthesize
array
metabolites.
regulation
metabolites,
honed
native
pests
pathogens,
may
be
ineffective
novel
illustrated
by
mortality
(>99%)
(EAB).
However,
standing
genetic
variation
produce
few
capable
seen
rare
surviving
ash.
In
investigation
this
plant-insect
interaction,
we
generalized
others
successful
responses.
Untargeted
provides
framework
understanding
resistance
populations.
This
general
technical
report
was
compiled
to
help
Southeastern
U.S.
producers
of
economically
important
agricultural
commodities
build
resilience
to;
prepare
for;
and
recover
from
hurricane
impacts.
The
comprises
23
guides;
each
one
focused
on
a
specific
commodity.
guides
also
provide
initial
site
planning
information
Extension;
State;
Federal
resource
links.
Canadian Journal of Forest Research,
Journal Year:
2021,
Volume and Issue:
52(1), P. 129 - 134
Published: June 25, 2021
In
the
Northern
Hemisphere,
many
species
have
been
reported
to
greater
genetic
diversity
in
southern
populations
than
northern
—
ostensibly
due
migration
northward
following
last
glacial
maximum.
The
generality
of
this
pattern,
while
well-established
for
some
taxa,
remains
unclear
North
American
trees.
To
address
issue,
I
collected
published
population
genetics
data
73
tree
and
tested
whether
was
associated
with
latitude
or
longitude
geographic
trends
were
dispersal
traits,
range,
study
characteristics.
found
there
no
general
patterns
strength
gradients
not
any
western
regions
America
tended
more
that
declined
latitude,
but
most
had
significant
trend.
This
work
shows
trees
complex
individualistic
may
negate
explanation
by
particular
trait
range
characteristic.
