BIODIVERSITY(2)

 

 THREATS TO BIODIVERSITY 3305/02/2019  

WHAT CAUSE THREATS TO IT... #.Biodiversity is under serious threat as a result of human activities. #.The main dangers wor...

MAJOR THREATS ... • HABITATE LOSS • GLOBAL CLIMATE CHANGE • OVER EXPLOITATION • ALIEN SPACIES INVASION • OVER HUMAN POPULA...

1. HABITAT LOSS • It can be described, when an organism loses it home. • Reasons of habitat loss by human : #. Agriculture...

Habitat loss.... 3705/02/2019

Natural disasters too... Earthquakes, landslides, volcanic eruptions and natural bush fires all affect the many different ...

Habitat loss by natural disasters .. 3905/02/2019

Solutions for this... • Protecting remaining section of habitat • Reduce human population and expansion of urbanization an...

2. GLOBAL CLIMATE CHANGE ... • Changes to the climate system have been observed at a global scale, in the measurements of ...

Climate change is very harmful... 4205/02/2019

3.OVER EXPLOITATION • Overexploitation means harvesting species from the wild at rates faster than natural populations can...

OVERFISHING 4505/02/2019

RESULT OF OVERFISHING… • Removal of essential predators • Growth of algae • Financial losses • Removal of endangered fishe...

Alien species Invasion • Invasive alien species are plants, animals, pathogens and other organisms that are non-native to ...

AN INVASIVE ALIEN SPECIES Parthenium hysterophorus :- #. Parthenium can almost grow anywhere and spreads extremely rapidly...

IMPACTS • Poisonous to cattle • Release toxins into soil to stunt growth of native plants • Loss of land • Reduces native ...

SOLUTIONS TO THIS… • Manual control :- It is possible to prevent further spread of Parthenium by destroying the plant befo...

Continue …. • Chemical control :- Various herbicides, when applied in high volume, have been found to be effective in mana...

Continue …. • Biological control :- Biological control has been deemed the best sustainable solution to a Parthenium infes...

HUMAN OVERPOPULATION • Human overpopulation is among the most pressing environmental issues, silently aggravating* the for...

What Causes Overpopulation? • An increased birth rate and lower birth mortality rates. • Decreased overall mortality rates...

MAJOR EFFECTS OF OVERPOPULATION… • Plant and Animal Extinction • Climate Change • Pollution • Reducing Forest Area 5505/02...

SOLUTIONS… • Social Awareness… • Importance of family planning… • Tax Benefits or Concessions… 5605/02/2019


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