Across
- 2. The visual pattern on a graph showing a population that grows rapidly, then levels off as it hits environmental resistance.
- 3. The maximum rate at which a population could increase under ideal environmental conditions with no limits.
- 4. Organisms characterized by long lifespans, slow maturation, and high parental investment in a few offspring (e.g., elephants or humans).
- 7. Represented by the variable $K$, this is the maximum number of individuals an environment can sustainably support.
- 9. Limiting factors, such as floods, fires, or droughts, that affect a population regardless of its size or "crowdedness."
- 10. Limiting factors, such as competition, predation, and disease, that have a greater impact as population size increases.
- 11. This is a formula used to describe how human population, affluence, and technology contribute to environmental impact.
- 12. Influences that encourage people to have more children, such as religious beliefs, cultural values, or economic needs for labor.
- 13. A metric that compares human resource consumption with Earth’s limited biological capacity to regenerate those resources.
- 14. A model of population increase that slows as the population size approaches the carrying capacity.
Down
- 1. Organisms characterized by short lifespans, rapid maturation, and the production of many offspring (e.g., mosquitoes or weeds).
- 5. The specific shape on a graph that represents a population growing at its biotic potential without restriction.
- 6. A model of population increase that results in a continuous upward curve; it occurs when resources are unlimited.
- 8. The international body responsible for producing the World Population Prospects and tracking global demographic shifts.