Lecture 15.1 Ecology 1 Flashcards Preview

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Flashcards in Lecture 15.1 Ecology 1 Deck (56):
1

____is a specific environment in which an organism lives

Habitat

2

____changes through time varying from place to place

Population

3

geographic range, spatial distribution, size, density, demography are all characteristics of ______.

Populations

3

Data on births, survival and mortality of individuals within a population is an example of

Life Table

3

Penguins living in Southern Hemisphere is an example of

geographic range

5

Group of communities interacting with each other and with their shared physical(non-living) enviornment

Ecosystem

5

Individuals are disturbed unpredictably within a uniform habitat

Random dispersion

6

The sun, water, and mountains are considered

Abiotic Factors

7

Semelparous

a single reproductive episode before death

7

_____ focuses on interactions of individuals within a population

Population Ecology

8

Limit the size of a population and whose effects is dependent on the number of individuals in the population. Defines

 

 

Density-dependent factor

8

____can limit population growth through density dependent effects

Predation

8

To explain the abundance and distribution of organisms is __________.

Major Goal of Ecology

9

Sea turtle comes ashore, digs a hole, deposits dozens of eggs, and then heads back to see. Returns a year later and does the same thing. Is an example of

Iteroparous

10

Two monkey's fighting for a banana is an example of

intraspecific

11

High population density decreases individual growth rate, adult size, and survival of plants and animals. Is an example of

Density-dependent factor

11

Hawks feeding on mice impacts traits of mouse population leading to....

selection for fur color as a camouflage

12

____curves show a constant probability of dying at any age

Type 2

14

The current abundance and distribution of kelp is a result of _____.

predation (Ex. Urchins controlling kelp)

15

Individuals group together due to patchy habitats, social groups, or reproductive patterns

Clumped dispersion

17

____curve reflect high juvenile mortality, followed by period of low mortality, followed by period of low mortality once offspring reach a critical size

Type 3

18

_____refers to selection of traits that trade off between quantity and quality of offspring

r/k selection

18

Carrying capacity

maximum number of individuals that an environment can support indefinitely (Resources are limited)

20

That lifetime strategies of growth and reproduction are shaped by natural selection to produce the largest possible number of viable offspring. Defines

Life History Theory 

21

Who are the famous natural Historians

Darwin, Wallace, Wilson, Goodall, Attenborough

22

Manipulation of organisms or their environments to determine mechanisms governing abundance and distribution. Defines

Experimental Ecology

23

Plants, Fungi, animals are considered

Biotic Factors

24

Produce very few high quality offspring, Offspring receive substantial parental care. Is an example of

K Selected

24

Logistic Growth

when population growth is limited, often because of available resources

25

____show rate of survival for individuals over the average life span of the species

Survivorship Curves

26

_______ examines how interactions between and within species evolve.

Evolutionary Ecology 

27

Modern ecology includes______ and _______.

Observation, Experimentation

28

Individuals repel each other and are evenly spaced because resources are in short supply (intraspecific competition). Defines

Uniform Dispersion

29

All of the ecosystems of Earth's aquatic and terrestrial realms. Defines

The biosphere

31

Producing numerous offspring, little to no parental care is an example of

R selection

32

_____ and ____ implies competition for limiting resources (intraspecific and interspecific)

Logistic Growth, K

34

Trophic

how energy flows through the system (Predation, Herbivory)

36

Coho salmon- larval salmon feed and grow for ~1 year before swimming to the ocean where they grow and return back to where they were born spawn and die. Is an example of

Semelparous

37

Number of individuals in a population at a given time

Population Size

38

_____curve reflect high survivorship until late in life

Type 1

39

A cat and a dog fighting for food is an example of

interspecific

40

_____ is the integrated study of living(biotic) and non-living(abiotic) components of an environment

Ecosystem ecology

42

_____ Focuses on groups of interacting populations of different species that live in the same place at the same time.

Community Ecology

43

Fires, earthquakes, extreme weather and other natural disturbances can reduce a population's size regardless of its density. Defines

Density-independent factors

44

A group of interacting populations of different species living in the same place at the same time. Defines

Ecological community

45

The statistical study of processes that change a population's size and density through time (population structure). Defines

Demography

46

Population

Interacting group of individuals of a single species that occupies the same area at the same time

47

Population, Community, Ecosystem ecology are the____

Levels of organization

49

Communities

A group of interacting populations of different species living in the same place at the same time

50

Number of individuals per unit of habitat

Population Density

51

What types of interactions give rise to ecological communities?

biotic ones

52

Individuals of the same age

cohort

53

Life Tables can also summarize_____.

fecundity of a population

54

Trade off investments include ____,_____ and _____ for alternative activites

energy, resources, and time traded 

55

Iteroparous

Multiple reproductive events over a lifetime

56

Symbiotic

parasitism, commensalism, mutualism