A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic communities have acquired evolutionary adaptations to better suit this running water environment. Know more about their evolutionary adaptations in this tutorial...
With regard to the population size of a species and what factors may affect them, two factors have been defined. They are the density-dependent factors and the density-independent factors. Find out the differences between the two in this tutorial. Know how these factors affect populations in an ecosystem...
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to include are cases of the bacterium PSA causing disease on kiwifruits, myrtle rust, and biological control...