• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Issue Report on Captive Breeding and Reintroduction

Extracts from this document...

Introduction

Target Audience: AS level Biology students. Purpose: for gaining a better understanding of the concepts of captive breeding and reintroduction. First biological issue (Major): Captive Breeding (including genetics and inbreeding) Pg1-3 Second biological issue (Minor): Reintroduction (inc. Hibernation as a biological process) Pg3-5 Word count: 1955 excluding figures and bibliography. Wildwood Wildwood Trust is a project situated on the edge of the Forest of Blean, in Kent. Wildwood's aim is to use the facilities in the woodland and animal collection to 'support practical conservation projects in the wild.' There are over three hundred animals, many of which are endangered, taking part in conservation projects, and living in semi natural enclosures. The woodland is managed by coppice rotation, a process that takes place every 20 years where trees such as silver birch and sweet chestnut are cut to ground level and then shoots allowed to regrow. This is an essential habitat for the hazel dormouse. The wood is a centre for captive breeding and reintroduction for native endangered species such as hazel dormice and this example will be used in this report to explain these issues. The Hazel Dormouse (Muscardinus avellanarius) The Hazel Dormouse is native to the countryside of Britain, predominantly southern England (see figure 2), living in woodland areas and environments rich in coppice. ...read more.

Middle

A studbook for dormice was created in 2006 to keep track of mice kept by members of the CDCBG. The studbook limits inbreeding and keeps breeding to first generation or wild caught animals. Breeders can use the studbook to selectively breed, mixing mice from different collections and different families. This will stop related mice from dominating the gene pool creating healthier mice and preserving genetic diversity. Future developments could include implantation of embryos and in vitro fertilisation (IVF) of the dormice. Selective breeding could be improved and gradually undesirable characteristics or weaknesses bred out. Cloning could be developed. Captive breeding raises many ethical, environmental, social and economic issues. Ethical issues. * There are various ethical issues that need consideration with regard to captive breeding. Animals have to be removed from their natural environment and put into captivity virtually locking them up and many people feel that there should not be any interference with nature in this way even to avoid extinction. It could be the case that genetic diversity has already declined to the point where it is irreversible. * There could be a case for protection to encourage breeding in the wild, by in situ methods of conservation, within the environment. However, captive breeding is used to retain species and improve numbers and is easier to manage. ...read more.

Conclusion

Microchips are put into the necks of the released dormice which are approximately a tenth of their body length. Anaesthetic is risky for small animals and interferes with their natural state. The chips are considered important for monitoring the dormice to help with the programme. They could be eaten by a predator in the food chain and the microchip would be affecting natural processes. If the reintroduction is not successful and the mice die this could be due to human error and animals may have suffered as a result of this. Economical The scheme is expensive as the release is labour intensive, with staff needed to survey the area before and after release. This diverts resources from much more cost-effective ecosystem and habitat conservation measures. The health screening is expensive and microchips costs �8 per mouse on top of anaesthetic and vetinary bills. Environmental The nest boxes and cages used can intrude on the natural woodland, with the possibility of dormice causing a shortage of food for the other animals in the ecosystem. Social Some behaviour in genetically inherited but some is learnt from adults and experience. Captive bred animals do not gain this knowledge and are at a disadvantage when reintroduced. The mice might lose their ability to create their own nests. The reintroduced dormice could cause a problem to the local residents. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Genetics, Evolution & Biodiversity section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Genetics, Evolution & Biodiversity essays

  1. Marked by a teacher

    MENTAL HEALTH

    4 star(s)

    signs as sleeping excessively or not at all, low energy levels and general apathy. Psychological illnesses associated with eating disorders In addition to common psychological signs, there are a variety of psychological illnesses that have been proven to associate with eating disorders, these are as follows: Conditions that can accompany

  2. Marked by a teacher

    Epping Forest Coursework

    4 star(s)

    make the axis for the plot of land in the light and dark areas. It will also provide coordinates for both axis. Each area will be 15m by 15m. (225m2) Gridded quadrat 1 This will be used to show the coordinate at which point the height of bracken will be measured.

  1. Marked by a teacher

    The daphnia lab report

    3 star(s)

    antennules and smaller size versus the females large body and eggs it stores. Females produce over a 100 eggs during each nesting which occurs every 3 days. Daphnia are sensitive when it comes to poor water conditions, they are sensitive to chloride or fluoride which is in tap water and highly toxic for these creatures.

  2. Peer reviewed

    Problem - Maintaining the habitat of the capybara and breeding them for meat.

    4 star(s)

    With more land the farmer can grow a larger amount of crops or raise a larger livestock to gain more money. This in my opinion is a simplistic view; the capybara may be a less appealing animal to many people.

  1. Peer reviewed

    How Zoo's Avoid Inbreeding in a Limited Captive Population

    4 star(s)

    The offspring have a reduced fitness and health. An example of this can be hatchery farming in that females have less eggs and small isolated animal populations decrease in fitness per generation. With time, Natural selection plays a role of killing off deleterious alleles when dominant alleles are present and

  2. The Biology of Autistic Spectrum Disorder and the Social Implications

    To enable health care workers, families and friends to successfully communicate with a child with ASD whenever possible, then following procedures such as keeping to predictable routines, avoid using metaphors and sarcasm, explaining exactly what a person is saying and what is meant by what they are saying and using visual aids where necessary.

  1. Captive Breeding

    The lecture at Paignton mentioned that they frequently get complaints from disappointed visitors who are unable to see the exhibits, and sure enough as I was there the orang-utans were nowhere to be seen, but that proves to me that the emphasis has truly shifted.

  2. Visit report

    It was in the later part of our tour that Bob Garson said, "due to other farming techniques such as covering the fruits other in the earlier weeks of growth meant that there was less need for pesticides." Although pesticides where still needed.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work