-
higher northern hemisphere latitudes,
where their food
sources grow. They
irrupt out of the
breeding range when the cone crop fails.
Crossbills breed very...
- from
their summer range in winter. In poor
berry years huge
numbers can
irrupt well
beyond their normal range,
often in
flocks that on
occasion number...
- can
irrupt in non-predictable ways
depending upon the
complex feedback mechanisms caused by competition. A
species po****tion may
sometimes irrupt when...
- incorruptibility, incorruptible, interrupt, interruptible, interruption,
irrupt, irruption, irruptive, maleruption, noneruptive, reroute, rout, route, routine...
-
migrate ****her south. In some years,
large numbers of
Bohemian waxwings irrupt well
beyond their normal winter range in
search of the
fruit that makes...
-
laying 3–5 eggs. This
crossbill is
mainly resident, but will
irregularly irrupt south if its food
source fails. The
American race
seems to
wander more frequently...
- (86–104 °F). Po****tions of the pallid-winged gr****hopper
occasionally irrupt to
damaging numbers.
Between 1952 and 1980,
there were six
outbreaks in...
- non-migratory and
usually stays within its
breeding range,
though it
sometimes irrupts southward. It is one of the few owls that is
neither nocturnal nor crepuscular...
-
shown to
flourish when sea
otters are present. When
otters are absent, sea
urchin po****tions can
irrupt and
severely degrade the kelp
forest ecosystem....
- Po****tion
structure is
modified by
available nutrition,
where po****tions are
irrupting there are few
animals over six
years old.
Where po****tions are stagnant...
