1 / 11

Biological Diversity

Biological Diversity. biodiversity refers to all the different kinds of life (or different species) on Earth there are over 3 million species on Earth… but half a million have not been classified

darlita
Download Presentation

Biological Diversity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Biological Diversity • biodiversity refers to all the different kinds of life (or different species) on Earth • there are over 3 million species on Earth… but half a million have not been classified • species is a group of similar organisms that can reproduce together to produce viable offspring • there is variation within species though… e.g. different hair or eye color, height… • variation improves survivability

  2. Classifying Biological Diversity 5 Kindoms (bacteria) (mostly single-cell organisms) Related species can have the same genus name but not the same species name: e.g Canis lupus (wolf) and Canis familiaris (dog)

  3. Distribution of Biodiversity

  4. Ecosystems 2:48 • the whole Earth’s surface consists of a series of interconnected ecosystems • an ecosystem is an area where climate, landscape, plants and animals all interact together in a unique way • ecosystems consist of 2 components • abiotic: non living features of the area • biotic: living organisms in the area

  5. Broad Niche (Generalists) Narrow Niche (Specialists)

  6. Three warbler species feed on spruce budworm. The tree is the habitat. Each has a unique niche where they prefer to gather food. There is some overlap of niche Resource Partitioning

  7. Populations & Communities • a population is all the members of a species that are living in the same area and sharing resources • a community is populations of different species that share a common area 6:40

  8. Competition and Sharing • species are continuously interacting with each other within their environments • food chains represent this interaction • most interactions between species are brief… generally for the purpose of getting food • but some species have longer term relationships → these are called symbiotic relationships

  9. Symbiotic Relationships Commensalism

  10. Mutualism

  11. Parasitism parasite & host

More Related