human activity and biodiversity

Question 1

wheres to reduce reducing biodiversity

Answer 1

Maintain existing hedgerows at the most beneficial height and
shape. An A-shape provides better habitats than a rectangular one.
• Plant hedges rather than erect fences as field boundaries.
• Maintain existing ponds and where possible create new ones.
• Leave wet corners of fields rather than draining them.
• Plant native trees on land with a low species diversity rather than
in species-rich areas.
• Reduce the use of pesticides - use biological control where possible
or genetically modified organisms that are resistant. to pests.
• Use organic, rather than inorganic, fertilisers.

Question 2

practices indirect effect of using human activity reduces biodiversity

Answer 2

• use of pesticides and inorganic fertilisers
• escape of effluent from silage stores and slurry tanks into water courses
• absence of crop rotation and lack of intercropping or undersowing.

Question 3

Certain practices that have directly removed habitats and reduced species
diversity.

Answer 3

• removal of hedgerows and grubbing out woodland
• creating monocultures, for example replacing natural meadows
with cereal crops or grass for silage
• filling in ponds and draining marsh and other wetland
• over-grazing of land, for example upland areas by sheep, thereby
preventing regeneration of woodland.