Species Must Pass Through Several "Filters" to Become Members of a Community

question 18

Essay

Species must pass through several "filters" to become members of a community. Describe these filters and how they can act to exclude invasive species from a community. How do invasive species overcome these filters? Your answer should address how species have historically invaded new areas and how human actions have changed the way these filters affect community membership.

---

Definitions:

Social Environment

The immediate physical and social setting in which people live or in which something happens or develops, including the culture, institutions, and people they regularly interact with.

Locus of Control

A psychological concept that refers to individuals' beliefs about the extent to which the outcomes of their actions are under their own control (internal locus) or influenced by external factors (external locus).

Personal Beliefs

Deeply held convictions or opinions that guide an individual's actions and judgements.

Core Self-evaluation

A personality trait which encompasses an individual's subconscious, fundamental evaluations about themselves, their capabilities, and their worth.