Population & Community Ecology

Question 0

Biotic Components

Answer 0

Living

Ex -animals, plants, protista, bacteria, fungi

Question 1

All living organisms, non living things, and all the natural processes in a specific area

Answer 1

Ecosystems

Question 2

Populations VS Communities

Answer 2

P: all members of a particular species in a particular area
-ex turtles & turtle friends

C: all members of all the different species in a particular area “all populations put together
Ex- snails fish rats

Question 3

3 parts of the ecosystem

Answer 3

1. Biotic Components
2. Abiotic Components
3. Natural Processes

Question 4

Biomes
Pond
Oak tree
Drop of pond water
Human body

Answer 4

Examples of Ecosystems

Question 5

Define biomes

Answer 5

Large ecosystems w similar soil, rainfall, and temperate characteristics (rainforest, grassland, desert etc)

Question 6

The subset of biology that studies how organisms interact with each other and the environment around them

Answer 6

Ecology

Basically the study of ecosystems and how their parts interact

Question 7

Energy flow through ecosystems

Answer 7

Food webs

Question 8

All energy in an ecosystem ultimately originates from the ___

Answer 8

Sun

Question 9

Organisms that can make their own energy (plants, some bacteria, some Protista)

Answer 9

Producers

Question 10

Eat producers to get energy (herbivores)

Answer 10

Primary consumers

Question 11

Eat primary consumers to get energy (carnivores)

Answer 11

Secondary consumers

Question 12

Eat secondary consumers to get energy (carnivores)

Answer 12

Tertiary

Question 13

Feed on dead or decaying tissues at any trophic levels

Answer 13

Decomposers

Question 14

Population dynamics

Answer 14

Studies how a population (one species) changes over time

Question 15

3 possibilities of population dynamics

Answer 15

1. Growing
2. Stable
3. Declining

Question 16

2 factors that cause population size to increase

Answer 16

Limiting factors

Environmental resistance

Question 17

Two types of population growth curves

Answer 17

EXPONENTIAL GROWTH
- S curve

LOGISTIC GROWTH
- J curve

Question 18

Exponential growth : S curve

Answer 18

No limiting factors so reach biotic potential

Question 19

Logistic Growth: J Curve

Answer 19

Limiting factors slow growth due to limiting factors

Question 20

Carrying Capacity

Answer 20

Maximum number of individuals that can be regularly sustained in an ecosystem

Question 21

Life history traits

Answer 21

Strategies individuals and species use to survive, grow and reproduce

Question 22

Niche

Answer 22

Organisms specific role in the ecosystem

Question 23

Two main life history strategies

Answer 23

1. Have many babies but don’t give them much care; shorter life
2. Have a few babies but take good care of them; longer life

Question 24

Specialist niche

Answer 24

Only lives in a few kinds if habitats or eats few foods. Superior competitor Doesn't adapt well to change

Question 25

Generalist niche

Answer 25

Can eat variety of foods & live in various places Poorer competitor Adapts to change more easily

Question 26

Ecological theory predicts:

Answer 26

No two species can have complete niche overlap

Question 27

Community dynamics

Answer 27

How one species changes to another

Question 28

Fighting over resources WITHIN trophic level

Answer 28

Competition

Question 29

Competition between different species - causes one specie to go extinct or both species present but at lower numbers

Answer 29

Interspecific

Question 30

Competition within same species | - minimized by RITUAL DISPLAYS

Answer 30

Intraspecific

Question 31

When one organism consumes another organism (usually BETWEEN trophic levels)

Answer 31

Predator-Prey Interactions

Question 32

Symbiosis

Answer 32

Direct relationship between two species

Question 33

Commensalism

Answer 33

Where one species benefits without affecting another species

Question 34

Direct relationship between two species

Answer 34

Symbiosis

Question 35

Where both species benefit from their interaction

Answer 35

Mutualism

Question 36

Where one species gains and one species is harmed by the interaction

Answer 36

Parasitism

Question 37

Most common form of symbiosis in nature

Answer 37

Parasitism