4/9 (absent) Flashcards
selecting, designing and managing nature reserves
What are the 3 major ways to maintain biodiversity
- protection
- conservation
- restoration
What was the original purpose of protected natural areas
- other than biodiversity protection
- recreation, scenic beauty
What are the ecological consequences of initial natural areas
- poor rep. of biodiversity
- lack of long term viability
- not designed for preserving biodiversity, fail to retain initial diversity
what is a protected natural area
-a geographically defined area which is designated, regulated and managed to achieve specific conservation objectives
current expectations
protect essential ecological processes & accommodate human use and occupancy
whats required for a protected natural area
- select (area with rep. of biodiversity)
- design )areas insure viability)
- manage (reduce threats)
what are hotspots
areas on s surface with large percentages of species: (44% plant, 28% bird, 54% amphibian)
about 2/3 animal species on planet
What are the 7 levels of prot. established by th IUCN with example
- Strict Nature Reserve (Aldabra island)
- Wilderness Area (artic national wildlife refuge)
- national park (yellowstone)
4.natural monument (saguaro)
5.habitat/species management area (horicon marsh)
6.protected lanscape/seascape
(cape cod) - managed resource protected area (us national forests)
how many protected areas exist
cover 10% of earth’s land surface (27% of US)
over 161,000