yellow stone park Flashcards
(8 cards)
1
Q
what year were the wolves removed?
A
1926
2
Q
when were the wolves reinroduced
A
1995
3
Q
why did they reintroduce the wolves
A
- restore natural balance of ecosytem
- controlled polulation of elk and beavers
= helped to restore vegetation and aquatic habitats
[there was an over population of herbivore elks = destroyed vegetation & habitats dec biodiversity]
4
Q
where is the park
A
US
5
Q
when was the national park first established
A
1872
6
Q
how manyy wolves were intrduced in 1995
A
14
7
Q
when was the second re-introcution of wolves?
A
1997 = 17 wolves
8
Q
why were 2 species of wolves reintrofuced
A
= gentic variation and higher survival chance
