new zealand natural history pt1 op 09
DESCRIPTION
http://wikieducator.org/Travel_and_TourismTRANSCRIPT
New Zealand
Natural History
A brief over view of the natural systems in Aotearoa - New Zealand
Hillary Jenkins, Otago Polytechnic 2008
Objective
• To gain a basic knowledge of the natural history systems which occur in New Zealand
• To understand the importance of those systems as a tourism resource and what they represent in today’s world
We will look at 2 parts:
Part 1
• Gondwanaland
• Basic New Zealand Geology
• Climate and climatic zones
Part 2
• Indigenous Flora and Fauna
• What is happening in today’s world
Objective
Gondwanaland
Geology and Climate
Part 1: Gondwanaland
• Ancient Southern super-continent
• Included India, Asia, South America, Australia,
New Zealand and Antarctica as one big landmass
• Dates back 100 million years
• Big Bang theory
• Continental Drift - shifting landmasses to locations
as we know them today
New Zealand’s Basic Geology
• Drifted away from Gondwanaland 100million years ago
• Sits upon the Pacific Ring of Fire - Volcanoes and hot springs
• Great Alpine Fault Line
• Lots of small earthquakes and the occasional big one
• Glaciations
• Mountain building
• Rock types and Fossils
Pacific Ring of Fire
http://en.wikipedia.org/wiki/Pacific_Ring_of_Fire
www.otago.ac.nz/geology/af/alpinefaultwww.geology.otago.ac.nz
Climate
• Unique geography
• Long thin islands with mountains reaching 3700 metres above sea level
• Entirely surrounded by ocean
• Roaring 40’s latitude
• Precipitation range from 20cm to 7m per yr
= a diverse range of climatic zones
Climatic Zones
New Zealand’s main climatic zones:
– High Alpine
– Alpine
– Temperate
– Sub Tropical
– Coastal
SO…What does all this mean for the inhabitants of New Zealand???
• New Zealand drifted away early taking with it the species of the time – Moa’s Ark
• Long time isolated so our indigenous species are a snap shot of ancient times
• Harsh and diverse climates, plants and animals need to be specially adapted for survival
• Dramatic impact with introduction of new species once man arrived
Lets take a closer look at the features of the
different climatic zones …
High Alpine Zone
Very cold temperatures, high precipitation, often
covered in snow or ice, no soil, all rock, between
1800metres and 3700metres above sea level, very
few birds and insects
Photo by Nicky Snoyink
Alpine zone
Often cold and wet, maybe covered with snow for
part of the year, between 900 metres and 1800
metres above sea level, some soil, few plants, no
trees, few birds and insects
Photo by Nicky Snoyink
Temperate Zone
Average to high precipitation, moderate to cold
temperatures, some snow, some dry areas,
between 400 and 900 metres above sea level
though this varies depending on its proximity to the
glaciers, reasonably good soil, some forests, birds
and insects
Photo by Nicky Snoyink
Sub Tropical Zone
Warm climates, rarely frosty, closer the ocean,
mostly coastal North Island and small part of
Northern Westland, good soil, great diversity of
plant and animal life
Photo by Nicky Snoyink
Coastal Zone
The unique coastal regions of New Zealand
containing, sand dunes, estuaries, river mouths,
coastal forest, ranging in temperatures and rainfall
depending on the location in the country.
Photo by Nicky Snoyink
The End
Photos by Nicky Snoyink