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definitions
unit 2
2.5
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iris burnett
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Cards (14)
ecological niche
a
multi-dimensional
summary
or the
tolerances
and
requirements
of a
species
realised niche
is occupied in
response
to
interspecific
competition
fundamental niche
occupied in the
absence
of
interspecific
competition
competitive exclusion
occurs as a response to
interspecific
competition
, where the
niches
of
two
species
are
so
similar
that
one
species
declines
to
local
extinction
resource partitioning
when the
realised
niche
of two species are
sufficiently
different
,
potential
competitors
are able to
co-exist
ectoparasite
lives on the
surface
of its
host
endoparasite
lives
within
the
tissues
of its
host
definitive host
the host in which the
parasite
reaches
sexual
maturity
intermediate host
the host in which a
parasite
may
require
to
complete
its
life
cycle
vector
an
organism
that does
not
cause
disease
itself but plays an
active
part
in the
transmission
of a
parasite
virus
parasites which can
only
replicate
inside
a
host
cell
transmission
the
spread
of a
parasite
to the
host
virulence
the
harm
done
to the
host
by the
parasite
epidemiology
the
study
of the
outbreak
and
spread
of
infectious
diseases
