(ROOT (S (ADVP (RB Now)) (NP (NNS scientists)) (VP (VBP believe) (SBAR (IN that) (S (NP (JJ global) (NN warming)) (VP (VBZ affects) (NP (VBG hibernating) (NNS animals)) (, ,) (S (VP (VBG causing) (S (NP (PRP them)) (VP (TO to) (VP (VB wake) (PRT (RP up)) (ADVP (RBR earlier))))))))))) (. .)))
Now scientists believe that global warming affects hibernating animals, causing them to wake up earlier.
advmod
now
Now
ADV
RB
nsubj
Number=Plur
scientist
scientists
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
believe
believe
VERB
VBP
mark
that
that
SCONJ
IN
amod
Degree=Pos
global
global
ADJ
JJ
nsubj
Number=Sing
warming
warming
NOUN
NN
ccomp
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
affect
affects
VERB
VBZ
amod
VerbForm=Ger
hibernate
hibernating
VERB
VBG
obj
Number=Plur
animal
animals
NOUN
NNS
punct
,
,
PUNCT
,
advcl
VerbForm=Ger
cause
causing
VERB
VBG
iobj
Case=Acc|Number=Plur|Person=3|PronType=Prs
they
them
PRON
PRP
mark
to
to
PART
TO
xcomp
VerbForm=Inf
wake
wake
VERB
VB
compound:prt
up
up
ADP
RP
advmod
Degree=Cmp
early
earlier
ADV
RBR
punct
.
.
PUNCT
.
(ROOT (S (SBAR (IN While) (S (NP (DT this)) (VP (MD may) (VP (VB seem) (S (NP (DT a) (JJ little) (NN concern))))))) (, ,) (NP (PRP it)) (VP (VBZ is) (PP (IN in) (NP (NN fact))) (NP (DT a) (JJ serious) (JJ environmental) (NN problem))) (. .)))
While this may seem a little concern, it is in fact a serious environmental problem.
mark
while
While
SCONJ
IN
nsubj
Number=Sing|PronType=Dem
this
this
PRON
DT
aux
VerbForm=Fin
may
may
AUX
MD
advcl
VerbForm=Inf
seem
seem
VERB
VB
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
little
little
ADJ
JJ
xcomp
Number=Sing
concern
concern
NOUN
NN
punct
,
,
PUNCT
,
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
case
in
in
ADP
IN
obl
Number=Sing
fact
fact
NOUN
NN
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
serious
serious
ADJ
JJ
amod
Degree=Pos
environmental
environmental
ADJ
JJ
root
Number=Sing
problem
problem
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (VBN shortened) (NN hibernation) (NN period)) (VP (MD could) (ADVP (RB actually)) (VP (VB lead) (PP (IN to) (NP (NP (JJ significant) (NNS decreases)) (PP (IN in) (NP (NP (DT the) (NN population)) (PP (IN of) (NP (JJ several) (NNS species))))))))) (. .)))
The shortened hibernation period could actually lead to significant decreases in the population of several species.
det
Definite=Def|PronType=Art
the
The
DET
DT
amod
Tense=Past|VerbForm=Part
shorten
shortened
VERB
VBN
compound
Number=Sing
hibernation
hibernation
NOUN
NN
nsubj
Number=Sing
period
period
NOUN
NN
aux
VerbForm=Fin
could
could
AUX
MD
advmod
actually
actually
ADV
RB
root
VerbForm=Inf
lead
lead
VERB
VB
case
to
to
ADP
IN
amod
Degree=Pos
significant
significant
ADJ
JJ
obl
Number=Plur
decrease
decreases
NOUN
NNS
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
population
population
NOUN
NN
case
of
of
ADP
IN
amod
Degree=Pos
several
several
ADJ
JJ
nmod
Number=Plur
species
species
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NP (DT Some)) (PP (IN of) (NP (NP (DT the) (JJ first) (NN evidence)) (PP (IN of) (NP (DT the) (NN problem)))))) (VP (VBD came) (PP (IN from) (NP (NP (NNP Colorado)) (, ,) (SBAR (WHADVP (WRB where)) (S (NP (NP (NNS researchers)) (PP (IN at) (NP (DT the) (NML (NNP Rocky) (NNP Mountain)) (NNP Biological) (NNP Lab)))) (VP (VBP have) (VP (VBN been) (VP (VBG observing) (NP (NN marmot) (NN hibernation) (NN behavior)) (PP (IN since) (NP (DT the) (NNS 1970s))))))))))) (. .)))
Some of the first evidence of the problem came from Colorado, where researchers at the Rocky Mountain Biological Lab have been observing marmot hibernation behavior since the 1970s.
nsubj
some
Some
DET
DT
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
first
first
ADJ
JJ
nmod
Number=Sing
evidence
evidence
NOUN
NN
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
problem
problem
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
come
came
VERB
VBD
case
from
from
ADP
IN
obl
Number=Sing
Colorado
Colorado
PROPN
NNP
punct
,
,
PUNCT
,
advmod
PronType=Rel
where
where
ADV
WRB
nsubj
Number=Plur
researcher
researchers
NOUN
NNS
case
at
at
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
Rocky
Rocky
PROPN
NNP
compound
Number=Sing
Mountain
Mountain
PROPN
NNP
amod
Degree=Pos
biological
Biological
ADJ
NNP
nmod
Number=Sing
Lab
Lab
PROPN
NNP
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
aux
Tense=Past|VerbForm=Part
be
been
AUX
VBN
acl:relcl
Tense=Pres|VerbForm=Part
observe
observing
VERB
VBG
compound
Number=Sing
marmot
marmot
NOUN
NN
compound
Number=Sing
hibernation
hibernation
NOUN
NN
obj
Number=Sing
behavior
behavior
NOUN
NN
case
since
since
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Plur
1970
1970s
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (PP (IN In) (NP (NP (DT the) (JJ early) (NNS days)) (PP (IN of) (NP (PRP$ their) (NNS studies))))) (, ,) (NP (NNS marmots)) (ADVP (RB generally)) (VP (VBD hibernated) (NP (NP (JJ several) (NNS weeks)) (PP (IN into) (NP (NP (DT the) (NN month)) (PP (IN of) (NP (NNP May))))))) (. .)))
In the early days of their studies, marmots generally hibernated several weeks into the month of May.
case
in
In
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
early
early
ADJ
JJ
obl
Number=Plur
day
days
NOUN
NNS
case
of
of
ADP
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nmod
Number=Plur
study
studies
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Number=Plur
marmot
marmots
NOUN
NNS
advmod
Degree=Pos
generally
generally
ADV
RB
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
hibernate
hibernated
VERB
VBD
amod
Degree=Pos
several
several
ADJ
JJ
nmod:tmod
Number=Plur
week
weeks
NOUN
NNS
case
into
into
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
month
month
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
May
May
PROPN
NNP
punct
.
.
PUNCT
.
(ROOT (S (ADVP (RB Nowadays)) (, ,) (ADVP (RB however)) (, ,) (S (NP (NP (NNS temperatures)) (PP (IN in) (NP (DT the) (NN area)))) (VP (VBP have) (VP (VBN risen) (PP (IN by) (NP (NP (CD 2.5) (NNS degrees)) (NNP Fahrenheit)))))) (, ,) (CC and) (S (NP (DT the) (NNS marmots)) (VP (VBP wake) (PRT (RP up)) (ADVP (NP (QP (RB about) (DT a)) (NN month)) (RBR earlier)))) (. .)))
Nowadays, however, temperatures in the area have risen by 2.5 degrees Fahrenheit, and the marmots wake up about a month earlier.
advmod
nowadays
Nowadays
ADV
RB
punct
,
,
PUNCT
,
advmod
however
however
ADV
RB
punct
,
,
PUNCT
,
nsubj
Number=Plur
temperature
temperatures
NOUN
NNS
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
area
area
NOUN
NN
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
root
Tense=Past|VerbForm=Part
rise
risen
VERB
VBN
case
by
by
ADP
IN
nummod
NumForm=Digit|NumType=Card
2.5
2.5
NUM
CD
obl
Number=Plur
degree
degrees
NOUN
NNS
nmod:npmod
Number=Sing
Fahrenheit
Fahrenheit
PROPN
NNP
punct
,
,
PUNCT
,
cc
and
and
CCONJ
CC
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
marmot
marmots
NOUN
NNS
conj
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
wake
wake
VERB
VBP
compound:prt
up
up
ADP
RP
advmod
about
about
ADV
RB
det
Definite=Ind|PronType=Art
a
a
DET
DT
obl:npmod
Number=Sing
month
month
NOUN
NN
advmod
Degree=Cmp
early
earlier
ADV
RBR
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (ADVP (IN At) (JJS least)) (NP (DT the) (NNS marmots)) (VP (VBP are) (ADVP (RB still)) (VP (VBG hibernating))) (. .)))
At least the marmots are still hibernating.
advmod
ExtPos=ADV
at
At
ADP
IN
fixed
Degree=Sup
least
least
ADJ
JJS
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
marmot
marmots
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advmod
still
still
ADV
RB
root
Tense=Pres|VerbForm=Part
hibernate
hibernating
VERB
VBG
punct
.
.
PUNCT
.
(ROOT (S (NP (JJ Several) (JJ other) (NNS animals)) (VP (VBP have) (RB not) (VP (VBN been) (VP (VBG hibernating) (ADVP (IN at) (DT all)) (ADVP (RB recently))))) (. .)))
Several other animals have not been hibernating at all recently.
amod
Degree=Pos
several
Several
ADJ
JJ
amod
Degree=Pos
other
other
ADJ
JJ
nsubj
Number=Plur
animal
animals
NOUN
NNS
aux
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
AUX
VBP
advmod
not
not
PART
RB
aux
Tense=Past|VerbForm=Part
be
been
AUX
VBN
root
Tense=Pres|VerbForm=Part
hibernate
hibernating
VERB
VBG
case
at
at
ADP
IN
obl
all
all
DET
DT
advmod
recently
recently
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (NNP Brown) (VBZ bears)) (PP (IN in) (NP (DT the) (NNP Spanish) (NNP Cantabrian) (NNPS Mountains)))) (VP (VBD did) (RB not) (VP (VB hibernate) (NP (JJ last) (NN year)))) (. .)))
Brown bears in the Spanish Cantabrian Mountains did not hibernate last year.
compound
Number=Sing
Brown
Brown
PROPN
NNP
nsubj
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
bear
bears
VERB
VBZ
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
Spanish
Spanish
ADJ
NNP
amod
Degree=Pos
Cantabrian
Cantabrian
ADJ
NNP
obl
Number=Plur
Mountain
Mountains
PROPN
NNPS
aux
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
do
did
AUX
VBD
advmod
not
not
PART
RB
root
VerbForm=Inf
hibernate
hibernate
VERB
VB
amod
Degree=Pos
last
last
ADJ
JJ
obl:tmod
Number=Sing
year
year
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (NP (NNPS Chipmunks)) (PP (IN in) (NP (DT the) (NNP US)))) (CC and) (NP (NP (DT some) (NNS snakes)) (PP (IN in) (NP (NNP Australia))))) (ADVP (RB also)) (VP (VBD skipped) (NP (DT the) (NN hibernation) (NN period))) (. .)))
Chipmunks in the US and some snakes in Australia also skipped the hibernation period.
nsubj
Number=Plur
Chipmunks
Chipmunks
PROPN
NNPS
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Sing
US
US
PROPN
NNP
cc
and
and
CCONJ
CC
det
some
some
DET
DT
conj
Number=Plur
snake
snakes
NOUN
NNS
case
in
in
ADP
IN
nmod
Number=Sing
Australia
Australia
PROPN
NNP
advmod
also
also
ADV
RB
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
skip
skipped
VERB
VBD
det
Definite=Def|PronType=Art
the
the
DET
DT
compound
Number=Sing
hibernation
hibernation
NOUN
NN
obj
Number=Sing
period
period
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (NNS bears)) (VP (VBP seem) (S (VP (TO to) (VP (VB have) (VP (VBN survived) (PP (IN without) (S (VP (VBG losing) (NP (JJ many) (NNS individuals)))))))))) (. .)))
The bears seem to have survived without losing many individuals.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Plur
bear
bears
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
seem
seem
VERB
VBP
mark
to
to
PART
TO
aux
VerbForm=Inf
have
have
AUX
VB
xcomp
Tense=Past|VerbForm=Part
survive
survived
VERB
VBN
mark
without
without
SCONJ
IN
advcl
VerbForm=Ger
lose
losing
VERB
VBG
amod
Degree=Pos
many
many
ADJ
JJ
obj
Number=Plur
individual
individuals
NOUN
NNS
punct
.
.
PUNCT
.
(ROOT (S (NP (DT The) (NNS chipmunks) (CC and) (NNS snakes)) (, ,) (ADVP (RB however)) (, ,) (VP (VBD were) (RB not) (ADJP (RB so) (JJ lucky))) (. .)))
The chipmunks and snakes, however, were not so lucky.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Plur
chipmunk
chipmunks
NOUN
NNS
cc
and
and
CCONJ
CC
conj
Number=Plur
snake
snakes
NOUN
NNS
punct
,
,
PUNCT
,
advmod
however
however
ADV
RB
punct
,
,
PUNCT
,
cop
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
advmod
not
not
PART
RB
advmod
so
so
ADV
RB
root
Degree=Pos
lucky
lucky
ADJ
JJ
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (JJ Many)) (PP (IN of) (NP (DT the) (NNS animals)))) (VP (VBD died) (PP (IN of) (NP (NN starvation))) (PP (IN during) (NP (DT the) (NN winter)))) (. .)))
Many of the animals died of starvation during the winter.
nsubj
Degree=Pos
many
Many
ADJ
JJ
case
of
of
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod
Number=Plur
animal
animals
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
die
died
VERB
VBD
case
of
of
ADP
IN
obl
Number=Sing
starvation
starvation
NOUN
NN
case
during
during
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
winter
winter
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (NP (DT The) (NN problem)) (PP (IN with) (NP (NP (NNS animals)) (VP (VP (VBG waking) (PRT (RP up)) (ADVP (RB early))) (, ,) (CC or) (VP (VBG skipping) (NP (NN hibernation)) (ADVP (RB altogether))))))) (, ,) (VP (VBZ lies) (PP (IN with) (NP (NP (DT the) (NNS creatures) (POS ')) (NN metabolism)))) (. .)))
The problem with animals waking up early, or skipping hibernation altogether, lies with the creatures' metabolism.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
problem
problem
NOUN
NN
case
with
with
ADP
IN
nmod
Number=Plur
animal
animals
NOUN
NNS
acl
VerbForm=Ger
wake
waking
VERB
VBG
compound:prt
up
up
ADP
RP
advmod
Degree=Pos
early
early
ADV
RB
punct
,
,
PUNCT
,
cc
or
or
CCONJ
CC
conj
VerbForm=Ger
skip
skipping
VERB
VBG
obj
Number=Sing
hibernation
hibernation
NOUN
NN
advmod
altogether
altogether
ADV
RB
punct
,
,
PUNCT
,
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
lie
lies
VERB
VBZ
case
with
with
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nmod:poss
Number=Plur
creature
creatures
NOUN
NNS
case
's
'
PART
POS
obl
Number=Sing
metabolism
metabolism
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (DT the) (NNS animals)) (VP (VBP hibernate)))) (, ,) (NP (PRP$ their) (NN metabolism)) (VP (VBZ drops) (ADVP (RB significantly))) (. .)))
When the animals hibernate, their metabolism drops significantly.
advmod
PronType=Int
when
When
ADV
WRB
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
animal
animals
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
hibernate
hibernate
VERB
VBP
punct
,
,
PUNCT
,
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nsubj
Number=Sing
metabolism
metabolism
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
drop
drops
VERB
VBZ
advmod
significantly
significantly
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (S (NP (NP (DT The) (NNS animals) (POS ')) (NN heart) (NN rate)) (VP (VBZ slows))) (, ,) (CC and) (S (NP (PRP they)) (VP (VBP require) (NP (NP (ADJP (RB very) (JJ little)) (NN energy)) (SBAR (S (VP (TO to) (VP (VB live)))))))) (. .)))
The animals' heart rate slows, and they require very little energy to live.
det
Definite=Def|PronType=Art
the
The
DET
DT
nmod:poss
Number=Plur
animal
animals
NOUN
NNS
case
's
'
PART
POS
compound
Number=Sing
heart
heart
NOUN
NN
nsubj
Number=Sing
rate
rate
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
slow
slows
VERB
VBZ
punct
,
,
PUNCT
,
cc
and
and
CCONJ
CC
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
conj
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
require
require
VERB
VBP
advmod
very
very
ADV
RB
amod
Degree=Pos
little
little
ADJ
JJ
obj
Number=Sing
energy
energy
NOUN
NN
mark
to
to
PART
TO
acl
VerbForm=Inf
live
live
VERB
VB
punct
.
.
PUNCT
.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (DT the) (NNS animals)) (VP (VBP awake) (PP (IN in) (NP (DT the) (NN spring)))))) (, ,) (NP (PRP$ their) (NN metabolism)) (VP (VBZ returns) (PP (IN to) (ADJP (JJ normal)))) (. .)))
When the animals awake in the spring, their metabolism returns to normal.
advmod
PronType=Int
when
When
ADV
WRB
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
animal
animals
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
awake
awake
VERB
VBP
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
obl
Number=Sing
spring
spring
NOUN
NN
punct
,
,
PUNCT
,
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nsubj
Number=Sing
metabolism
metabolism
NOUN
NN
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
return
returns
VERB
VBZ
case
to
to
ADP
IN
obl
Degree=Pos
normal
normal
ADJ
JJ
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (CC But) (SBAR (IN while) (S (NP (PRP$ their) (NN metabolism)) (VP (MD may) (VP (VB be) (ADJP (ADJP (RB as) (JJ active)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBD was) (PP (IN before) (NP (NN hibernation))))))))))) (, ,) (NP (NN food) (NNS sources)) (VP (VBP are) (RB n't) (ADJP (ADJP (RB as) (JJ available)) (SBAR (IN as) (S (NP (PRP they)) (VP (VBD were) (PP (RB before))))))) (. .)))
But while their metabolism may be as active as it was before hibernation, food sources aren't as available as they were before.
cc
but
But
CCONJ
CC
mark
while
while
SCONJ
IN
nmod:poss
Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs
their
their
PRON
PRP$
nsubj
Number=Sing
metabolism
metabolism
NOUN
NN
aux
VerbForm=Fin
may
may
AUX
MD
cop
VerbForm=Inf
be
be
AUX
VB
advmod
as
as
ADV
RB
advcl
Degree=Pos
active
active
ADJ
JJ
mark
as
as
SCONJ
IN
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
advcl
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
case
before
before
ADP
IN
obl
Number=Sing
hibernation
hibernation
NOUN
NN
punct
,
,
PUNCT
,
compound
Number=Sing
food
food
NOUN
NN
nsubj
Number=Plur
source
sources
NOUN
NNS
cop
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
be
are
AUX
VBP
advmod
not
n't
PART
RB
advmod
as
as
ADV
RB
root
Degree=Pos
available
available
ADJ
JJ
mark
as
as
SCONJ
IN
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin
be
were
AUX
VBD
advmod
before
before
ADV
RB
punct
.
.
PUNCT
.
(ROOT (S (S (NP (DT A) (NN marmot)) (VP (MD may) (VP (VB wake) (PRT (RP up)) (SBAR (WHADVP (WRB when)) (S (NP (NNS temperatures)) (VP (VBP get) (ADJP (JJR warmer))))) (, ,) (S (VP (VBG thinking) (SBAR (S (NP (PRP it)) (VP (VBZ 's) (NP (NN spring)))))))))) (, ,) (CC but) (S (NP (NNS plants)) (VP (MD will) (RB not) (VP (VB have) (VP (VBN got) (NP (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN sun)))) (SBAR (S (NP (PRP they)) (VP (VBP need) (S (VP (TO to) (VP (VB grow)))))))))))) (. .)))
A marmot may wake up when temperatures get warmer, thinking it's spring, but plants will not have got the amount of sun they need to grow.
det
Definite=Ind|PronType=Art
a
A
DET
DT
nsubj
Number=Sing
marmot
marmot
NOUN
NN
aux
VerbForm=Fin
may
may
AUX
MD
root
VerbForm=Inf
wake
wake
VERB
VB
compound:prt
up
up
ADP
RP
advmod
PronType=Int
when
when
ADV
WRB
nsubj
Number=Plur
temperature
temperatures
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
get
get
VERB
VBP
xcomp
Degree=Cmp
warm
warmer
ADJ
JJR
punct
,
,
PUNCT
,
advcl
VerbForm=Ger
think
thinking
VERB
VBG
nsubj
Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
's
AUX
VBZ
ccomp
Number=Sing
spring
spring
NOUN
NN
punct
,
,
PUNCT
,
cc
but
but
CCONJ
CC
nsubj
Number=Plur
plant
plants
NOUN
NNS
aux
VerbForm=Fin
will
will
AUX
MD
advmod
not
not
PART
RB
aux
VerbForm=Inf
have
have
AUX
VB
conj
Tense=Past|VerbForm=Part
get
got
VERB
VBN
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
amount
amount
NOUN
NN
case
of
of
ADP
IN
nmod
Number=Sing
sun
sun
NOUN
NN
nsubj
Case=Nom|Number=Plur|Person=3|PronType=Prs
they
they
PRON
PRP
acl:relcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
need
need
VERB
VBP
mark
to
to
PART
TO
xcomp
VerbForm=Inf
grow
grow
VERB
VB
punct
.
.
PUNCT
.
(ROOT (S (RB So) (SBAR (IN until) (S (NP (DT the) (NNS plants)) (VP (VBP grow)))) (, ,) (NP (DT the) (NNS marmots)) (VP (VBP have) (NP (DT no) (JJ reliable) (NN food) (NN source))) (. .)))
So until the plants grow, the marmots have no reliable food source.
advmod
so
So
ADV
RB
mark
until
until
SCONJ
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
plant
plants
NOUN
NNS
advcl
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
grow
grow
VERB
VBP
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Plur
marmot
marmots
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
have
have
VERB
VBP
det
no
no
DET
DT
amod
Degree=Pos
reliable
reliable
ADJ
JJ
compound
Number=Sing
food
food
NOUN
NN
obj
Number=Sing
source
source
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (NFP  ))
root
PUNCT
NFP
(ROOT (S (NP (JJ Many) (NNS scientists)) (VP (VBP believe) (SBAR (S (NP (DT the) (NN problem)) (VP (MD will) (VP (VB continue) (S (VP (TO to) (VP (VB get) (ADJP (JJR worse)))))))))) (. .)))
Many scientists believe the problem will continue to get worse.
amod
Degree=Pos
many
Many
ADJ
JJ
nsubj
Number=Plur
scientist
scientists
NOUN
NNS
root
Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
believe
believe
VERB
VBP
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj
Number=Sing
problem
problem
NOUN
NN
aux
VerbForm=Fin
will
will
AUX
MD
ccomp
VerbForm=Inf
continue
continue
VERB
VB
mark
to
to
PART
TO
xcomp
VerbForm=Inf
get
get
VERB
VB
xcomp
Degree=Cmp
bad
worse
ADJ
JJR
punct
.
.
PUNCT
.
(ROOT (S (PP (IN For) (NP (JJ many) (NNS biologists))) (, ,) (NP (DT that)) (VP (VBZ 's) (NP (DT a) (JJ scary) (NN prospect))) (. .)))
For many biologists, that's a scary prospect.
case
for
For
ADP
IN
amod
Degree=Pos
many
many
ADJ
JJ
obl
Number=Plur
biologist
biologists
NOUN
NNS
punct
,
,
PUNCT
,
nsubj
Number=Sing|PronType=Dem
that
that
PRON
DT
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
's
AUX
VBZ
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
scary
scary
ADJ
JJ
root
Number=Sing
prospect
prospect
NOUN
NN
punct
.
.
PUNCT
.
(ROOT (S (NP (NP (NNP Terry) (NNP Root)) (, ,) (NP (NP (DT an) (NN animal) (NN expert)) (PP (IN at) (NP (NNP Stanford) (NNP University)))) (, ,)) (VP (VBD said) (, ,) (`` ``) (S (NP (PRP I)) (VP (VBP do) (VP (VB think) (SBAR (S (SBAR (WHNP (WP what)) (S (NP (PRP we)) (VP (MD will) (VP (VB be) (VP (VBG facing)))))) (VP (VBZ is) (NP (NP (DT the) (NN extinction)) (PP (IN of) (NP (JJ many) (NNS species))))))))))) (. .) ('' '')))
Terry Root, an animal expert at Stanford University, said, "I do think what we will be facing is the extinction of many species."
nsubj
Number=Sing
Terry
Terry
PROPN
NNP
flat
Number=Sing
Root
Root
PROPN
NNP
punct
,
,
PUNCT
,
det
Definite=Ind|PronType=Art
a
an
DET
DT
compound
Number=Sing
animal
animal
NOUN
NN
appos
Number=Sing
expert
expert
NOUN
NN
case
at
at
ADP
IN
compound
Number=Sing
Stanford
Stanford
PROPN
NNP
nmod
Number=Sing
University
University
PROPN
NNP
punct
,
,
PUNCT
,
root
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
say
said
VERB
VBD
punct
,
,
PUNCT
,
punct
``
``
PUNCT
``
nsubj
Case=Nom|Number=Sing|Person=1|PronType=Prs
I
I
PRON
PRP
aux
Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin
do
do
AUX
VBP
ccomp
VerbForm=Inf
think
think
VERB
VB
nsubj
PronType=Rel
what
what
PRON
WP
nsubj
Case=Nom|Number=Plur|Person=1|PronType=Prs
we
we
PRON
PRP
aux
VerbForm=Fin
will
will
AUX
MD
aux
VerbForm=Inf
be
be
AUX
VB
acl:relcl
Tense=Pres|VerbForm=Part
face
facing
VERB
VBG
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
det
Definite=Def|PronType=Art
the
the
DET
DT
ccomp
Number=Sing
extinction
extinction
NOUN
NN
case
of
of
ADP
IN
amod
Degree=Pos
many
many
ADJ
JJ
nmod
Number=Plur
species
species
NOUN
NNS
punct
.
.
PUNCT
.
punct
''
''
PUNCT
''
Now scientists believe that global warming affects hibernating animals, causing them to wake up earlier. While this may seem a little concern, it is in fact a serious environmental problem. The shortened hibernation period could actually lead to significant decreases in the population of several species.  Some of the first evidence of the problem came from Colorado, where researchers at the Rocky Mountain Biological Lab have been observing marmot hibernation behavior since the 1970s. In the early days of their studies, marmots generally hibernated several weeks into the month of May. Nowadays, however, temperatures in the area have risen by 2.5 degrees Fahrenheit, and the marmots wake up about a month earlier.  At least the marmots are still hibernating. Several other animals have not been hibernating at all recently. Brown bears in the Spanish Cantabrian Mountains did not hibernate last year. Chipmunks in the US and some snakes in Australia also skipped the hibernation period. The bears seem to have survived without losing many individuals. The chipmunks and snakes, however, were not so lucky. Many of the animals died of starvation during the winter.  The problem with animals waking up early, or skipping hibernation altogether, lies with the creatures' metabolism. When the animals hibernate, their metabolism drops significantly. The animals' heart rate slows, and they require very little energy to live. When the animals awake in the spring, their metabolism returns to normal.  But while their metabolism may be as active as it was before hibernation, food sources aren't as available as they were before. A marmot may wake up when temperatures get warmer, thinking it's spring, but plants will not have got the amount of sun they need to grow. So until the plants grow, the marmots have no reliable food source.  Many scientists believe the problem will continue to get worse. For many biologists, that's a scary prospect. Terry Root, an animal expert at Stanford University, said, "I do think what we will be facing is the extinction of many species."