Conservation techniques :

- Keystone species, or species that influence the viability of a community, although their number may not be excessively high, the extinction of keystone species can lead to other extinction and the loss of biodiversity - Flagship species, evoke a strong emotional response in humans, they are considered charismatic and treasured for their cuteness, butterflies , dolphins , lions - meta-population, a large population that has been subdivided into several small isolated populations due to habitat fragmentation - A source population, is one that is stable or growing in size producing an excess of individuals - A sink population is where the environment is not as favorable as where the birth grade is equal to the death rate - Landscape preservation, is the habitat conservation for animals - Edge effect, an edge is a transition from one habitat to another. - Habitat restoration, restoration ecology is a sub discipline of conservation biology that looks for scientific ways to return ecosystems to the natural state