Effect of Different Variables on Species Distribution (AQA A-Level Biology): Flashcards

Where organisms are found within their habitat

Non-living variables (e.g., light, water, nutrients, temp)

Living components (e.g., competition, predators, disease)

Ensures sampling is unbiased and representative

Bottom left corner aligns with coordinate point

Count squares where half or more contains species

Photometer

Y: % cover, X: environmental variable

Correlation does not necessarily indicate causation

5m × 5m area; ten random coordinates