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David Tilman's long - term ecosystem exp...

David Tilman's long - term ecosystem experiments using outdoor plots confirmed that :

A

Increased diversity contributed to higher productivity

B

Plots with more species showed less year to year variation in the total biomass

C

Both ( A ) and ( B )

D

Biodiversity has no relation with productivity . resistance and stability

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The correct Answer is:
C
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Match column I with column II and select the correct option from the given codes. {:("Column I",,"Column II"),("A) Rivet Popper hypothesis",(i),"Paul Ehrlich"),("B) Long-term ecosystem experiments using outdoor plots",(ii),"David Tilman"),("C) Species-area relationships",(iii),"Alexander von Humboldt"):} (a) A-(iii), B-(i), C-(ii) (b) A-(i), (ii), C-(iii) (c) A-(i), B-(iii), C-(ii) (d) A-(ii), B-(iii), C-(i)

USHA PUBLICATION-BIODIVERSITY & CONSERVATION -ECERCISE
  1. In the ' Rivet - popper ' hypothesis , Ehrlich compared ecosystem with...

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  2. Paul Ehrlich by his ' Rivet - popper hypothesis tried to explain :

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  3. David Tilman's long - term ecosystem experiments using outdoor plots c...

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  4. Which of the following is correct ?

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  5. With the change in environmental conditions , some species disappear a...

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  6. Which of the extinctions are rare :

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  7. Extinctions which occurred due to big natural catastrophes is called :

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  8. Anthropogenic extinction is causing the ' sixth extinction ' . It is ...

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  9. The IUCN . Red list ( 2004 ) documents the extinction of ( A ) species...

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  10. The colonisation of tropic pacific islands by humans have ' resulted i...

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  11. Which of the following has undergone recent extinctions ?

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  12. Following mass extinctions , recovery to the same level of biodiversit...

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  13. Which of the following term includes all of the others ?

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  14. Which of the following groups is most , threatened by global extinctio...

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  15. Which term did Edward Osborne Wilson coin for our innate appreciation ...

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  16. We should care about loss in biodiversity in the populations of other ...

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  17. The most serious consequence of a decrease in global diversity would b...

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  18. The most direct threat to biodiversity is :

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  19. Introduced species can have deleterious effects on biological communit...

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  20. Agricultural lands frequently require nutrient augmentation because :

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