Option C: Species and communities
• Community structure can be strongly affected by keystone species.
• Each species plays a unique role within a community because of the unique combination of its spatial habitat and interactions with other species.
• Interactions between species in a community can be classified according to their effect.
• Each species plays a unique role within a community because of the unique combination of its spatial habitat and interactions with other species.
• Interactions between species in a community can be classified according to their effect.
Application: Local examples to illustrate the range of ways in which species can interact within a community.
Watch the video below to understand how elephant populations are estimated by transect lines. Do the click and learn to learn about elephant populations and how to use transect methods to estimate how many are left.
Use the Lincoln index to estimate grasshopper population.