2.4 - BIOMES

Question 1

What is a biome?

Answer 1

a community of flora and fauna occupying a major habitat

Question 2

Microbiota vs Microbiome

Answer 2

Microbiota - a community of microorganisms found in multicellular organisms
Microbiome - all the genetic material within a microbiota
(La verdad no entiendo esto pero no creo que nos pregunten)

Question 3

What is a biome shift?

Answer 3

A change in temperature and precipitation lead to climate change and a change in biomes (e.g. less precipitation –> desert gets larger)

Question 4

What is zonation?

Answer 4

A biome change over space

Question 5

What is succession?

Answer 5

A biome change over time

Question 6

Primary succession vs secondary succession

Answer 6

PS: Ecosystems are formed from bare rock (no soil)
- Pioneer species –> plant growth –> new species arrive needing soil –> new species alter environment

SS: used to be an ecosystem, suffered destruction
- same changes but much faster

Question 6

Primary succession vs secondary succession

Answer 6

PS: Ecosystems are formed from bare rock (no soil)
- Pioneer species –> plant growth –> new species arrive needing soil –> new species alter environment

SS: used to be an ecosystem, suffered destruction
- same changes but much faster

Question 7

What are R-Strategists?

Answer 7

Pioneer species: first species in a biome, “colonizers”. Highly adaptable, early reproduction, small size and short life but many offspring. Usually prey.