biogeography Flashcards
define ‘biological realm’
an area defined by the fauna found in it
where is the Ethiopian realm?
all of Africa excluding north
where is the palearctic realm?
europe, north africa, Arabia, North&east Asia
where is the nearctic realm?
North America
where is the Holarctic?
Greenland and northern Canada
where is the oriental realm?
india and SE asia
where is the cosmopolitan realm?
covers whole world- transit species
where are marine realms in general found?
on continental coasts
what is the indicator species of marine realms?
cone snails
where is the East African coastal realm?
east Africa, arabia and West Indian islands
where is the indo-pacific oceanic realm?
South and SE Asia, islands off north AUS.
where is the east pacific realm?
W of americas
where is the Caribbean-west Atlantic realm?
E of americas
where is the Mediterranean-east Atlantic realm?
W of Africa up to France and med
where is the cosmopolitan realm?
all over oceans
what is Europe’s biogeography classified by?
tree species
where are oaks found?
mild and humid west
where are laurels found?
hot and dry south
where is beech found?
central to mid west
where are coniferous found?
cold north
where are fir found?
mountainous regions
where is pine found?
SE
where is slipper found?
far north
where are very few trees found?
SE
define dispersal in relation to new island inhabitation
individuals from mainland leave and colonise new island
define vicariance in relation to island inhabitation
when a portion of land is colonised before it splinters
what does the species-island hypothesis suggest?
that the smaller an island is, the lower its species richness will be
what is the MacArthur-wilson equilibrium in terms of species richness on islands?
the balance created between species extinction and new immigration
define island syndrome
dwarfism of mammals and giantism of all others on islands
