- To be
counted as a true migration, and not just a
local dispersal or
irruption, the
movement of the
animals should be an
annual or
seasonal occurrence...
-
Irruptive growth is a
growth pattern over time,
defined by a
sudden rapid growth in the po****tion of an organism.
Irruptive growth is
studied in po****tion...
-
termed "true migration"
because they are
irregular (nomadism, invasions,
irruptions) or in only one
direction (dispersal,
movement of
young away from natal...
-
Basin (/ˈsʌdbəri/), also
known as
Sudbury Structure or the
Sudbury Nickel Irruptive, is a
major geological structure in Ontario, Canada. It is the third-largest...
-
crossbill irruptions in the
British Isles occur very infrequently, and were
remarked upon by
writers dating back to the 13th century.
These irruptions led in...
-
irruptions at
temperate latitudes are
thought to be due to good
breeding conditions resulting in more
juvenile migrants.
These result in
irruptions occurring...
-
travelling only as far as is
required to
avoid bad
weather or
obtain food.
Irruptive species such as the
boreal finches are one such
group and can commonly...
- the food runs out and move on again. In what may be the
largest ever
irruption in Europe, in the
winter of 2004–2005, more than half a
million waxwings...
- is one of many subarctic-resident bird
species that
exhibit irruptive behavior. In
irruption years,
individuals can move long
distances in
search of suitable...
-
Ecological overshoot Epidemiological transition Human po****tion
planning Irruptive growth Overshoot (po****tion) Po****tion
decline Po****tion
density World...
