3.3 Flashcards
pros of ex-situ
protects from poaching
selective breeding- artificial
cna keep stud books
can store seeds in seed banks
education
control inbreeding
money used for conservation
cons of ex-situ
expensive
small population size
hard to intergrate
behavior change
may not be able to integrate back into wild
wild population affected
pros of in-situ
dont move speicies
not disruptive
no behavior change
protects habitat as a whole
encourages eco tourists
allows scientific studies
cons of in-situ
requires large areas
increased risk of interbreeding
risk of poaching
risk of disease
whys maintain biodiversity
loss of biodiversity means fewer species
loss of endemic species leads to extinction
species may be usefull e.g. medicine
survive extreme conditions
monatery value
ethical
genetic bottleneck
when the population greatly reduces in size
so reduces gene pool
so prob of inheriting recessive alles is larger
biodiversity
a measure of the variety of living organisms in a habitat and their genetic diversity
species richness
number of different species in an area
species eveness
relative number of different types of species
index of biodiversity
d= N(N-1)/ Σn(n-1)
N-total no
n-total no of each species
endemism
endemic species are only found in one place
genetic diversity
total no of different alleles in the gene pool of a population
ex situ conservation
take place outside natural habitat e.g zoos
in situ conservation
in natural habitat e.g natural parks
provisioning
provisions we need
e.g food clothes medicine
