Methods of conserving biodiversity
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What do we need to think about before we decide how to target conservation activities
• population size • what are the causes of threat? • what species are present? • cost of project
What does IUCN stand for
• the international union of conservation of nature
What are the roles of the IUCN
• assess’ habitats and status of species - they compile a red list • they protect coasts and oceans
What is the IUCN red list of threatened species
• list of species that are given a status and they monitor them over time • it shows which species are improving • it also tells us where they are, habitat and threats to the species
How are species categories assessed in the IUCN red list
• population of species • number of mature adults • area of habitat
What are endemic species and give a case study
• those that live in a limited area such as a mountain range, lake or island • tree lobsters were only found at ball’s pyramid
What are keystone species and give a case study
• an organism that helps hold the system together. maintains ecology and community • grey wolves of yellowstone
What are flagship species and give a case study
• a species selected to act as an ambassador, icon or symbol for a defined habitat, issue, campaign or environmental cause • panda - WWF - they attract the public attention and spread awareness
What is the wildlife and countryside act 1981
• it protects animals, plants and habitats in the uk.
Why can some species not be kept in captivity
• expense • some species are too big • difficult to recreate habitats and conditions
How can keeping species in captivity and captive breeding programmed help wildlife conservation
• it will increase population numbers • selectively breeding - controls genes
Problems associated with breeding in captivity
• some animals don’t do well in captivity • animals may not develop the skills they need to survive in the wild • animals may have a fear of humans
What are the 5 methods of increasing the success of captive breeding
• cryopreservation • artificial insemination • embryo transfer • micropropagation • cloning of animals
What are problems associated with the release of captive-bred animals
• possibility of interbreeding • unaware of predators • unable to hunt
What are some points to consider before the release of any individuals to the wild
• how mature are they • are they able to survive • are they fearful of humans • are they in the right habitat
What is meant by the term hard release
• no support given after release • people don’t walk away, they still monitor the population
What is meant by the term soft release
• they are released with help and support
What is a seed bank
• it is a store for seeds • can store CWR’s
Why is svalbard’s seed bank important
• they preserve CWR’s • they preserve seeds of plants that are vulnerable or extinct in the wild
What are some problems associated with seed banks
• a power failure • seeds with high H2O content will have a harder time freezing
How does designating land protect habitats
• gives the land legal protection • stop private land owners/ smaller land owners to do what they want
What is an agri-environmental scheme
• provide funding to farmers to farm in a way that supports biodiversity etc
What do agri-environmental schemes aim to achieve
• increase biodiversity • protect habitats -improve soil and air quality
What are 3 examples of features that can be added or maintained
• planting fruit trees • beetle bank • field buffer strips