Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIO 121 > Ecology > Flashcards

Ecology Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Biosphere

A

The entire portion of the Earth inhabited by life. Sum of all the plate’s ecosystems.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Global Ecology

A

Examines how the regional exchange of energy and materials influence the functioning and distribution of organisms across the biosphere.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

landscape/ seascape

A

Mosaic of connected ecosystems.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Landscape Ecology

A

Focuses on factors controlling exchanges of energy, materials, and organisms across multiple ecosystems.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ecosystem

A

Community of organisms in an area and the physical factors with which those organisms interact.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ecosystem Ecology

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Community

A

Group of populations of different species in an area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Community Ecology

A

Examines how species interactions, such as predation and competition, affect community structure and organization.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Population

A

Group of individuals of the same species living in an area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Population Ecology

A

Analyzes factors that affect population sizes and how and why it changes through time.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Organismal Ecology

A

How and organisms structure, physiology, and behavior meet challenges posed by its environment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Ecology

A

Scientific study of interactions between organisms and their environment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Tropics

A

Those regions that lie between 23.5 degrees North and 23.5 degrees South.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Climate

A

Long-term prevailing weather conditions in a given area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Macroclimate

A

Weather patterns global, regional, and landscape level.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Microclimate

A

Very fine, localized weather patterns, such as those encountered by the community ohm organisms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Abiotic

A

Non-living factors that influence the distribution and abundance of organisms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Biotic

A

Living factors or other organisms in an environment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Biome

A

Any of the worlds major ecosystem types. Often classified by predominant vegetation for terrestrial biomes and physical environment for aquatic biomes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Climograph

A

Plot of the annual mean temperature and precipitation in a particular region.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Ectone

A

Area of integration between biomes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Canopy

A

Upper most layer in a terrestrial biomes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Disturbance

A

An event such as fire, storm, or human activity that changes a community, removing organism from it and altering resource availability.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Tropical rain forest

A

Terrestrial biome characterized by relatively high precipitation and temperatures year-round.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Tropical dry rain forest

A

Terrestrial biome characterized by relatively high precipitation and temperatures year-round, but with a pronounced dry season.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Savanna

A

Tropical grassland biomes with scattered individual trees and large herbivores and maintained by occasional fires and drought.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Temperate Grasslands

A

Terrestrial biome that exists at midlatitude regions and is dominated by grasses and forbs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Northern Coniferous Rainforest

A

Terrestrial biomes that characterized by long, cold winters and dominated by cone-bearing trees.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Temperate Broadleaf Forest

A

Biome located throughout midlatitude regions where there is sufficient moisture to support growth of large, broadleaf deciduous trees.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Tundra

A

Terrestrial biomes at the extreme limits of plant growth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Photic Zone

A

Top layer of aquatic biomes where there is sufficient light for photosynthesis.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Aphotic Zone

A

Bottom Layer of aquatic biomes where little light penetrates.

33
Q

Pelagic Zone

A

Both the Photic and Aphotic Zones.

34
Q

Abysmal Zone

A

Deep part of the ocean, 2,000m to 6,000m deep. Part of the Aphotic Zone.

35
Q

Benthic Zone

A

Bottom surface of aquatic environment.

36
Q

Benthos

A

Community of organisms that live Benthic Zone of an aquatic environment.

37
Q

Detritus

A

Dead organic matter

38
Q

Thermocline

A

Narrow stratum of abrupt temperature change in the ocean and in many temperate-zone lakes.

39
Q

Turnover

A

The mixing of waters as a result of changing water temperature profiles in a lake.

40
Q

Oligotrophic Lake

A

A nutrient poor lake, clear lake with few phytoplankton.

41
Q

Eutrophic Lake

A

Lake with high rate of biologic productivity supported by a high rate of nutrient cycling.

42
Q

Littoral Zone

A

In a lake, the shallow, well-lit waters close to shore.

43
Q

Limnetic Zone

A

In a lake, the well-lit open surface waters far from shore,

44
Q

Wetland

A

A habitat that is inundated by water at least some of the time and that supports plants adapted to water saturated soils.

45
Q

Esuary

A

Area where fresh water stream or river merges with the ocean.

46
Q

Intertidal Zone

A

The shallow zone of the ocean adjacent to land and between the high and low tide lines.

47
Q

Oceanic Pelagic Zone

A

Most of the oceans waters far from shore, constantly mixed by ocean currents.

48
Q

Coral Reefs

A

Typically warm water, tropical ecosystem dominated by the hard skeletal structures secreted primarily by coral.

49
Q

Marine Benthic Zone

A

The ocean floor

50
Q

Neurotic Zone

A

The shallow regions of the ocean overlaying the continental shelf.

51
Q

Deep-Sea Hydrothermal Vents

A

A dark, hot, oxygen-deficient environment associated with volcanic activity on or near the sea floor.

52
Q

Dispersal

A

The movement of individuals away from their parent location.

53
Q

Density

A

Number of individuals per unit area or volume

54
Q

Dispersion

A

Pattern of spacing among individuals within the boundaries of the population

55
Q

Mark-Recapture Method

A

Sampling technique used to estimate the size of animal populations.

56
Q

Immigration

A

Influx of new individuals from other areas.

57
Q

Emigration

A

Movement of individuals out of a population and into other locations.

58
Q

Territoriality

A

The defense of a bounded space against encroachment by other individuals.

59
Q

Demography

A

Study of vital statistics of populations and how they change over time.

60
Q

Life Tables

A

Age-specific summaries of the survival pattern of a population.

61
Q

Cohort

A

A group of individuals of the same age.

62
Q

Survivorship Curve

A

A plot of the proportion or numbers in a cohort still alive at each age.

63
Q

Reproductive Table

A

Age specific summary of the reproductive rates in a population.

64
Q

Exponential Population Growth

A

Growth of a population in an ideal, unlimited environment, represented by a J-shaped curve when population size is plotted over time.

65
Q

Carrying Capacity

A

Maximum population size that a particular environment can sustain.

66
Q

Logistic Population Growth

A

Population growth that levels off as population size approaches carrying capacity.

67
Q

Life History

A

Traits that affect an organisms schedule of reproduction and survival.

68
Q

Semelparity

A

Reproduction in which an organisms produces all of its offspring in a single event. (Big-Bang reproduction)

69
Q

Iteroparity

A

Reproduction in which adults produce offspring over many years. (Repeated Reproduction)

70
Q

K-Selection

A

Selection for life history traits that are sensitive to population density. (Density-Dependent Selection)

71
Q

R-Selection

A

Selection for life history traits that maximize reproductive success in uncrowned environments. (Density-Independent Selection)

72
Q

Density Independent

A

Referring to any characteristic that is not affected by population density.

73
Q

Density Dependent

A

Referring to any characteristic that varies with population density.

74
Q

Population Dynamics

A

The study of complex interactions between biotic and abiotic factors influence variations in population size.

75
Q

Metapopulations

A

Growth of spatially separated populations of one species that interact through immigration and emigration.

76
Q

Demographic Transition

A

In a stable population, the transition from high birth and death rates to low birth and death rates.

77
Q

Age Structure

A

Relative number of individuals of each age in a population.

78
Q

Ecological Footprint

A

The aggregate land and water area required by a person, city, or nation to produce all of the resources it consumes and to absorb all the waste in generates.

BIO 121 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions