18
THE DIFFERENCES OF A DESERT ECOSYSTEM FROM A FOREST ECOSYSTEM

The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

  • Upload
    others

  • View
    2

  • Download
    0

Embed Size (px)

Citation preview

Page 1: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

T H E D I F F E R E N C E SO F A D E S E R TE C O S Y S T E M

F R O M A F O R E S TE C O S Y S T E M

Page 2: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

E C O S Y S T E M

I s d i v i d e d i n t o

t w o t y p e s :

- L i v i n g

- N o n - l i v i n g

Page 3: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

T h r e e M a i n D i f f e r e n c e s :

1 . P r e s e n c e o f W a t e r

    2 . V e g e t a t i o n

  3 . V a r i e t y o f A n i m a l s

Page 4: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

D E S E R T S A N D F O R E S T S

D e s e r t s a n d f o r e s t s h a v e t w o v e r y d i s t i n c t t y p e s o f b i o m e s . W h i l e b o t h c o n t a i n a l l t h e e l e m e n t s n e c e s s a r y t o s u p p o r t l i f e ( w a t e r , v e g e t a t i o n , a n d h e a t ) , t h e y d o s o i n d i f f e r e n t w a y s .

D u e t o t h e s e d i f f e r e n c e s , t h e l i f e t h a t d e v e l o p s i n e a c h e n v i r o n m e n t i s v e r y d i f f e r e n t a n d a d a p t e d f o r s u r v i v a l i n t h e i r b i o m e .

Page 5: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

Forests may have numerous rivers and streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of kilometers away.

Tundras, which are technically classified as a type of desert, may contain significant amounts of snow, but there is a lack of liquid water.

1 . T H E P R E S E N C E

O F W A T E R

Page 6: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

Forest flora is diverse. The vegetation in deserts is simpler than in forests. On the other hand, some deserts can have many plant species that have adapted to harsh conditions, while other deserts may have only a small variety of plants.

2 . V E G E T A T I O N

Page 7: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

D E S E R T E C O S Y S T E M

T y p i c a l p l a n t s a r e e p h e d r a , c a c t i . T h e r e a r e w o r m w o o d , a c a c i a , c a m e l t h r o n .

T h e r e a r e m a n y f l o w e r s : t u l i p s , m a l c o l m i a , e m i n i u m a n d o t h e r s .

Page 8: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

D E S E R T I ST h e n a m e " d e s e r t " d o e s n o t m e a n a c o m p l e t e a b s e n c e o f l i f e . S o m e a n i m a l s a n d p l a n t s a r e w e l l a d a p t e d t o l i v i n g i n a d r y c l i m a t e a n d h i g h t e m p e r a t u r e s .

H o w e v e r , c o m p a r e d w i t h f l o r a a n d f a u n a o f o t h e r e c o s y s t e m s , t h e p l a n t a n d a n i m a l w o r l d o f a d e s e r t i s e x t r e m e l y m e a g e r .

Page 9: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

I L L U S T R A T I O N O F D E S E R T

E C O S Y S T E M

Page 10: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

W A T E R

O n e o f t h e m o s t i m p o r t a n t l i m i t i n g

f a c t o r s o f e c o s y s t e m p r o d u c t i v i t y i s t h e l a c k

o f w a t e r . B e c a u s e o f t h e l a c k o f m o i s t u r e i n

p l a n t s , t h e p r i m a r y p r o d u c e r s a r e a t g r e a t

d i s t a n c e s f r o m e a c h o t h e r . T h e i r s m a l l t h i c k l e a v e s a r e a d a p t e d t o

t h e c o n s e r v a t i o n o f w a t e r .

Page 11: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

F O R E S T S

B r o a d l e a f f o r e s t s a r e c o n s t i t u t e d o f

l i n d e n s , o a k s , a s h t r e e s , e l m s , m a p l e s , a n d c h e s t n u t s . T h e

f o r e s t f l o o r i s e n t i r e l y o c c u p i e d b y g r a s s a n d b e r r i e s : a

p o l e m i c i s t , a l u n g w o r t , a n d

s t r a w b e r r y .

Page 12: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

A N I M A L S

T h e f o r e s t e c o s y s t e m m a y c o n t a i n l a r g e ,

s m a l l , o r e v e n m i c r o s c o p i c a n i m a l s . F o r e s t a n i m a l s c a n i n c l u d e m a m m a l s ,

r o d e n t s , b i r d s , r e p t i l e s , a m p h i b i a n s , a n d f i s h .

L a r g e m a m m a l s a r e m u c h r a r e r i n d e s e r t s , w h e r e l i m i t e d a m o u n t s o f f o o d a n d w a t e r a r e m o r e s u i t a b l e f o r t h e l i f e o f s m a l l r o d e n t s , r e p t i l e s , a n d i n s e c t s .

Page 13: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

F O R E S T A N I M A L S

A f e w s p e c i e s r e p r e s e n t t h e d e s e r t . T y p i c a l r e p r e s e n t a t i v e s a r e : c a m e l s , a n t e l o p e s , k u l a n s , j e r b o a s , s q u i r r e l s , g e r b i l s , l i z a r d s , a n d n u m e r o u s i n s e c t s .  

Page 14: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

D E S E R T A N I M A L S

A f e w s p e c i e s r e p r e s e n t t h e d e s e r t . T y p i c a l r e p r e s e n t a t i v e s a r e : c a m e l s , a n t e l o p e s , k u l a n s , j e r b o a s , s q u i r r e l s , g e r b i l s , l i z a r d s , a n d n u m e r o u s i n s e c t s .  

Page 15: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

T h e r o d e n t s , s u c h a s g o p h e r s , j e r b o a s , a n d g e r b i l s d i g b u r r o w s , w h i c h a l l o w t h e m t o e s c a p e

t h e h e a t . R e p t i l e s a r e w e l l a d a p t e d a s w e l l .

Page 16: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

After a period of heavy rains, there is an increase in a number of plants, insects, and small rodents. With the onset of drought, the moisture that was stored in the tissues of the plants is gradually consumed.

A F T E R R A I N

Page 17: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

F O R E S T E C O S Y S T E M C H A R A C T E R I S T I C S

T h e f o r e s t e c o s y s t e m i s c h a r a c t e r i z e d b y a l a r g e a m o u n t o f t r e e s , a n i m a l s , a n d w a t e r , w h i l e t h e d e s e r t h a s a l i m i t e d a m o u n t o f s p e c i e s .

Page 18: The Differences of a Desert Ecosystem From a Forest Ecosystem · streams that flow beneath the soil. There are few water sources in the desert, and they may be situated hundreds of

T H A N K Y O U !

E S S A Y S H A R K T E A M