sustainability and preservation

Question 1

what are 3 facts about the predator pray relationship

Answer 1

size of predator prey population fluctuates
more prey then predators
sizes of prey populations will change before predator population

Question 2

what is conservation

Answer 2

human actions to help increase biodiversity

Question 3

what is meant by sustainable management

Answer 3

natural resources can be used by humans without them running out and maintaining biodiversity

Question 4

what is meant by preservation

Answer 4

protecting an area by not letting people on it

Question 5

what are 3 benefits of conservation

Answer 5

ethical- all animals have the right to live- ensure humans are still able to experience the natural ecosystem
social- enjoy the outdoors- good for physical and mental health
economic- medicines, food , timber sourced from natural ecosystems and tourism

Question 6

what are 4 features of sustainability

Answer 6

enough resources for future generations
enable less economically developed countries to develop
balance consumption of resources between high and low economically developed country
preserve the environment

Question 7

what are 2 examples of small-scale timber production

Answer 7

coppicing and pollarding

Question 8

what is some strengths and a weakness of coppicing

Answer 8

easy and quick as more branches grow quickly and cut at the base
rotational, after one area has been cut then the next, so the trees have time to grow before being cut again
shorter- prevents succession so trees can’t dominate so biodiversity is remained
- as they are cut shorter they can be easily eaten or destroyed

Question 9

what are some strengths and weaknesses of pollarding

Answer 9

higher up cut so can’t be eaten or destroyed easy but harder to cut down and grow less branches

Question 10

what is an example of large scale timber production

Answer 10

felling

Question 11

what are some problems with felling and what should be done instead

Answer 11

clear large areas which may not regrow due to destruction and soil erosion
instead- selective cutting - non-endangered trees
replanting- with distance - avoids competition
manage pests- grow well
protect areas for the locals to enjoy

Question 12

what are 4 ways of sustainable fish farming

Answer 12

fish quotas- avoid overfishing
larger nets- only get mature fish
restrict time of year- avoid mating season
fish farming- maintain protein supply- large fish - prevent loss of wild species