3.3 4 Ex-situ and in-situ conservation

Question 1

conservation

Answer 1

keeping and protecting a living and changing environment

Question 2

Ex-situ conservation

Answer 2

takes place outside of their natural habitat
not always time to conserve habitat or protect them onn site
enables genetic material to be conserved or breeding population to be returned to their natural habitat
should be complementary in-situ and ideally in country where the threaten species originates

Question 3

In-situ conservation

Answer 3

conservation of ecosystems and natural habitats and the maintance and recovery of viable populations of speices in their natural surroundings

Question 4

plants vital importance

Answer 4

gm lost forever
crossbreeding crop plants back to orginal wild plant or using wild plants to supply genes for genetic engineering are ways in which the long term health of crop plants can be maintained

Question 5

botanic gardens

Answer 5

maintain collections of plants

Question 6

seed banks

Answer 6

preserve plants in a stare of effective suspened animation
most plants make a huge number of seeds so can be collected without damaging the natural population .
seeds are usually small so a large number of them can be stored relatively chaply in a small space
contain genetic make up of species

Question 7

field gene banks

Answer 7

seeds of some species do not store well often crop plants
species is grown year after year (could be a tissue culture)
a lot of room and work

Question 8

other ways of conserving plants

Answer 8

using tissue cultures or growing plants on need takes up a lot less space and time

Question 9

reasons for ex-situ conservation

Answer 9

conditions that may threaten a species continue

Question 10

captive breeding programs

Answer 10

individuals of an endangered species are bred in zoos or parks in an attempt to save them from extinction
ultimate aim is to reintroduce back into wild to restore orginial populations

Question 11

reintroduction

Answer 11

does not always work but can be more sucessful in national parks or other protected areas

Question 12

problems with captive breeding an reintroduction

Answer 12

not enough space or resources in zoos and parks for all endangered species
difficult to provide the right conditions for breeding
reintroduction will be unsucessful unless orginial threats are removed
diffcult to go to be unsupported
when population is small gene pool is reduced
very expensive and time consuming

Question 13

examples of in-situ

Answer 13

national parks

Question 14

in-situ strategies

Answer 14

habitat restoration and recovery,strategies for the sustainable use and mangement of biological resources and managed recovery programmes for threatend or endangered species
genetic diversity is monitored or threats to biodiveristy

Question 15

important in in-situ

Answer 15

preservation of traditional knowledge and land managment is important for the maintenance of biodiverse habitats and legislation

Question 16

conflicts in conservation

Answer 16

needs of the people living there and the needs of the plants and the animals being conserved
costs money
often less developed countries that have more pressing issues

Question 17

sustainability

Answer 17

sustainiable methods of land use

Question 18

sustainable forestry

Answer 18

trees selectively haverst and replant

Question 19

sustainable agriculture

Answer 19

organic fertilisers ,biological pest control,mainaing hedgre rows and planting in rotation