chap 4?

Question 1

Explain r vs k selected speeches

Answer 1

r-selected species (r-strategists) thrive in unpredictable environments where they can reproduce rapidly. They tend to have a large number of offspring, but with less care invested in each one. This strategy works well when environmental conditions allow for rapid population growth, but it can lead to high mortality rates.

K-selected species (K-strategists), on the other hand, thrive in stable environments where they invest more time and resources into each offspring, ensuring greater survival. Their population size is regulated by the carrying capacity of the environment, leading to a more stable population.

Question 2

compare and contrast 6 types

Answer 2

MLOPPS

maturity, lifespan, offspring size, parental care, population size

Question 3

what is a metapopulation

Answer 3

A metapopulation is a group of spatially separated populations of the same species that interact with each other through occasional migration or gene flow between habitat patches. These populations are typically connected by the movement of individuals, which helps maintain genetic diversity and can lead to the recolonization of habitats where local populations have gone extinct.

Question 4

what is inbreeding depression

Answer 4

Inbreeding depression is caused by the mating of closely related individuals, leading to the expression of harmful genetic traits and reduced fitness in the population. It is particularly problematic in small, isolated populations, where genetic diversity is already low and the likelihood of inbreeding is high. Conservation efforts often focus on maintaining genetic diversity to reduce the risk of inbreeding depression in endangered populations.

Question 5

What are habitat corridors

Answer 5

Connect disconnected habits, combat habitat fragmation and ++ genetic diversity

Question 6

Resource Partitioning

Answer 6

Resource partitioning refers to the process by which different species in the same habitat divide or share resources to reduce competition.

Question 7

16. Define keystone species and describe an example.

Answer 7

very important species that has a dispropotiionate large impact on env compared to density

Question 8

ecosystem engineers

Answer 8

beavers, building dams, play a key role in develiping exonsstems