Captive breeding and release programs Flashcards
What is ex situ conservation
Conservation away from where you would normally find that species
What is in situ conservation
Conservation that takes place within a species natural habitat
What is five questions need to be considered for ex situ conservation
1) Is the wild population threatened?
2) Is there a genetically diverse captive population?
3) Is in situ conservation successful?
4) Is keeping a captive population realistic?
5) Is released into the wild going to take place?
Why does habitat size affect keeping species in captivity
Some species require such a large habitats that they cannot be kept in captivity
What sort of species Can’t really be kept in captivity?
Whales 
How can food requirements effect if a species can be kept in captivity
Some species have feeding requirements that cannot be easily provided
What sort of animals have tricky food requirements
Insectivorous bats, fish that eat plankton
How much does species interrelationships affect captivity
Some species have complicated species interrelationships
What is an example of a species interrelationship
Mycorrhizal root fungi relationships with plants
How can financial restraints affect keeping species in captivity
Keeping animals in zoos or plants in botanic Gardens is expensive and there’s not enough money available to keep all endangered species in captivity
What are some examples of the conditions needed for breeding
Day length, light level, temperature, amount of food or the amount of stored body fat
What happens if the conditions for breeding are not met
Breeding will not occur
How can population interactions affect breeding success
In the wild breeding pairs of many birds made choose isolation while nonbreeding individuals live elsewhere
What can happen when breeding and nonbreeding individuals Are mixed
May cause conflict and reduce the survival of eggs and chicks
How can the availability of partners affect breeding
Some species breed most successfully breeding a single partner
while some breed more successfully if there is a choice of partners
How does breeding habitats affect captive breeding programs 
Some species can only breed if they have a suitable habitat
What Things might make a habitat suitable for a species
Suitable site for courtship display, social grouping, an area for hunting or a nestsite
How are flamingos made to breed in captivity
Mirror put up around the enclosure to get the effect of a large group that is required for flamingos to Breed
What Is the gene pool size of most captive breeding programmes
Have a small gene pool
What are the risks of having a small gene pool
Increases the risk of inbreeding
What is the problem with inbreeding
Harmful recessive genes become expressed If both parents are carrying the needed Gene This is most likely to happen with closely related individuals
How was the Hawaiian goose Affected by a small Gene Pool size
Program is started with only seven individuals this led to some Goessling having Thin feathers which meant they died in cold conditions
What can a studbook be used for
Used to keep records of family trees which house to ensure breeding takes place between individuals that are as unrelated as possible
How can hybridisation affect a captive breeding programs
 If too closely related species decide to breed it can often lead to infertile offspring being born this is the case for both animals and plants
