Global Biodiversity

Question 1

What is earth’s projected population in 2100 for families with one child vs. families with 2 families? And what would the projected population be at the growth of 2020’s rate?

Answer 1

-one-child families would be 1.4 billion and would require 2 planets to sustain the population,
-2-child families would be 8.7 billion and need 12 planets.
-The projected population at 2020s growth rate would be 19.2 billion with a requirement of 27 planets

Question 2

What is a nutrient pulse? Give an example

Answer 2

Herring spawning is an example of a nutrient pulse because when the eggs hatch and decompose, they release nutrients like nitrogen and phosphorus. Herring eggs are also a good source of food for predators like crabs or birds

Question 3

Connectance formula (C)

Answer 3

C=A/P
A= Actual number of links in a food web
P= possible number of links in a food web