L14

Question 1

ecology is the science of:

Answer 1

both living and non living factors that affect the DISTRIBUTION and ABUNDANCE of organisms

aka habitat

Question 2

ecology is the scientific study of interactions…:

Answer 2

interactions between organisms and their environment

Question 3

what do the interactions between organism and environment determine:

Answer 3

distribution and abundance of organisms

Question 4

6 subfields of ecology:

Answer 4

global
landscape
ecosystem
community
population
organismal

Question 5

what is organismal ecology?

Answer 5

studies how an organism’s STRUCTURE
PHYSIOLOGY
BEHAVIOUR
meets environmental challenges

Question 6

give an example of a question at the organismal level

Answer 6

how do sharks find a mate

Question 7

what does POPULATION ecology focus on?

Answer 7

how MANY individuals of a specie live in an area

analyses factors that affect population size and how and why it changes through time.

Question 8

what property does population ecology have?

Answer 8

DENSITY

Question 9

questions to ask at population level?

Answer 9

what factors affect the REPRODUCTION RATE

Question 10

which level?
Examines how interactions between species, such as predation and competition, affect ____ structure and organisation.

Answer 10

COMMUNITY ECOLOGY

Question 11

what property does COMMUNITY ECOLOGY have?

Answer 11

BIODIVERSITY
interacting species, populations of different species

Question 12

which level?

What factors influence the diversity of species that inhabit this forest?

Answer 12

COMMUNITY

Question 13

which level?

emphasises energy flow and chemical cycling between organisms and the environment.

Answer 13

ECOSYSTEM ECOLOGY

Question 14

what is ECOSYSTEM ecology?

Answer 14

PHYSICAL FACTORS + COMMUNITY

Question 15

eaxmple of ECOSYSTEM leveled question

Answer 15

What factors control photosynthetic productivity of this grassland ecosystem?

Question 16

what is a landscape

Answer 16

mosaic of connected ecosystems

Question 17

landscape ecology focuses on the factors controlling:

3 things

Answer 17

exchanges of energy,
materials, and
organisms across multiple ecosystems

Question 18

question to ask at landscape level?

Answer 18

To what extent do nutrients from terrestrial ecosystems affect organisms in the lake?

Landscape ecology focuses on spatial patterns, habitat patches, fragmentation, and movement across landscapes.

Question 19

what is the biosphere

Answer 19

the sum of all the planet’s ecosystems

Question 20

photic zone

Answer 20

region where there is sufficient light for photosynthesis

Question 21

what is global ecology

Answer 21

large-scale processes, biomes, climate, nutrient cycles, and human impacts.

Question 22

species diversity
successional stage
species interactions

Answer 22

COMMUNITIES

Question 23

density
dispersion
growth rate

Answer 23

populations

Question 24

nutrient cycling
energy flow
transfer efficiency

Answer 24

ECOSYSTEMS

Question 25

2 factors that limit the distribution of species

Answer 25

BIOTIC ABIOTIC

Question 26

which factors do ecologists consider when explaining the DISTRIBUTION OF SPECIES

Answer 26

1. dispersal 2. behaviour 3. biotic 4. abiotic

Question 27

dispersal contributes to:

Answer 27

GLOBAL distribution of organism

Question 28

what shows the influence of dispersal on distribution?

Answer 28

Natural range expansions

Question 29

species transplant what do they do?

Answer 29

accidently/intentionally relocated organisms DISRUPT the communities or ecosystems they have been introduced in

Question 30

species distribution may be limited by:

Answer 30

HABITAT SELECTION behaviour

Question 31

Biotic factors that affect the distribution of organisms

Answer 31

- interactions with other - predation - competition

Question 33

# abiotic factor why is TEMPERATURE an imoportant factor in animal distribution?

Answer 33

effect on biological processes cells freeze below 0 proteins denature above 45 varies in space and time

Question 34

salinity affects:

Answer 34

water salt balance through osmosis

Question 35

characteristics of soil that LIMITS the distribution of plnats and animals ? | 3 thinsg

Answer 35

physical structure pH mineral composition

Question 36

what is an estuary

Answer 36

transition between river and sea

Question 37

aphotic zone

Answer 37

very little light penetrates

Question 38

Pelagic zone

Answer 38

Photic + Aphotic

Question 39

____ and ____ increase water loss and inhibit growth

Answer 39

freezing temperature and strong winds