NZ Plant Origin

Question 1

Four affinities for native plants

Answer 1

Gondwana
Australian
tropical
South American

Question 2

Gondwanic OG

Answer 2

NZ apart of GLand
primitive plants: ferns and gyms
conifers (kauri and podocarps)
angiosperms like proteas

Question 3

tropical OG

Answer 3

Australia drifts north
warm tropical currents diverted down to NZ
Steeping stones north of NZ

Question 4

Tropical species

Answer 4

pukatea 
puka
mangrove
nikau
cabbage trees
pohutukawa 
kawakawa

Question 5

tropical features

Answer 5

few deciduous tree
multi tiered forests 
butressed trunks 
flowers and fruit on branches and trunks
Large leaves

Question 6

Australian OG

Answer 6

drake passage
west wind drift current ACC
strong winds

Question 7

Aus Species

Answer 7

Eucalyptus
Acacias
Casuarina
Metrosideros
Tea trees
(wattles) spp
manuka & kanuka

Question 8

South American OG

Answer 8

When NZ South American were connected by Antartica

Question 9

SA Species

Answer 9

Kowhai
griselinia
hebe
tree fuchsia
beeches

Question 10

HOW DO WE KNOW HISTORICAL DISTRIBUTION OF PLANTS

Answer 10

pollen granules
topography and geology
volcanic activity
adaptive radiation

Question 11

NZ HABITAT FEATURES

Answer 11

13 degrees lat
wide range of land area which means broad range of climate zones
most isolated land mass for its size

Question 12

NZ Physical Environments

Answer 12

land area 268000km2
coastline 15000km
across 14 latitudes = temperature gradient
isolation

Question 13

WIND EFFECTS ON NZ

Answer 13

prevailing westerlies
wet western side, dry eastern
range of altitudes

Question 14

distinct NZ features of vegetation

Answer 14

high degree of endemism
multi tiered forest structure
evergreen forests
divarication 
distinctive juvenile forms
small inconspicuous flowers