Ch. 52 - An Introduction to Ecology and the Biosphere Flashcards
The scientific study of the interactions between organisms and the environment
Ecology
The study of how an organism’s structure, physiology, and behavior meet the challenges posed by its environment
Organismal Ecology
A group of individuals of the same species living in an area
Population
Study of the factors that affect population size and how and why it changes through time
Population Ecology
A group of populations of diffeent species in an area
Community
The study of how interactions between species, such as predation and competition, affect community structure and organization
Community Ecology
The community of organisms in an area and the physical factors with which those organisms interact
Ecosystem
The study of energy flow and chemical cycling between organisms and the environment
Ecosystem Ecology
A mosaic of connected ecosystems
Landscape or Seascape
The study of the factors controlling exchanges of energy, materials, and organisms across multiple ecosystems
Landscape Ecology
The global ecosystem - the sum of all the planet’s ecosystems and landscapes
Biosphere
The study of how the regional exchange of energy and materials influences the functioning and distribution of organisms across the biosphere
Global Ecology
The regions that lie between 23.5º north latitude and 23.5º south latitude
Tropics
The long-term prevailing weather conditions in a given area
Climate or Macroclimate
Very fine, localized patterns in climatic conditions
Microclimate
Nonliving
Abiotic
Living
Biotic
A directional change to the global climate that lasts three decades or more
Climate Change
A plot of the annual mean temperature and precipitation in a particular region
Climograph
A major life zone characterized by vegetation type (or aquatically by physical environment)
Biome
The area of integration where neighboring biomes grade into one another
Ecotone
The uppermost trees or branches of the trees in a forest, forming a more or less continuous layer of foliage
Canopy
An event such as a storm, fire, or human activity that changes a community, removing organisms from it and altering resource availability
Disturbance
A forest with high rate of precipitation and high humidity, usually located near the equator
Tropical Rain Forest
A forest characterized by a pronounced dry season during part of the year
Tropical Dry Forest
A dry, barren area of land, especially one covered with sand, that is characteristically desolate, waterless, and without vegetation
Desert
A grassy plain in tropical and subtropical regions, with few trees
Savanna
An ecological biome composed of shrubby plants adapted to dry summers and moist winters
Chaparral
Areas of open grassland with very few trees, like savannas, but located in colder climate regions which receive less precipitation on average than savannas
Temperate Grasslands
A biome that occupies a vast area below the tundra, characterized by a longer and warmer growing season
Northern Coniferous Forest
A biome known for known for the turning of the colors of its deciduous leaves to brilliant reds, oranges, and golds in autumn
Temperate Broadleaf Forest
A vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen
Tundra
The region of an aquatic biome where there is sufficient light for photosynthesis
Photic Zone
The region of an aquatic biome where little light penetrates
Aphotic Zone
The photic and aphotic zones of an aquatic biome
Pelagic Zone
The part of the ocean 2,000 m to 6,000 m below the surface
Abyssal Zone
The zone of an aquatic biome made up of sand and organic and inorganic sediments
Benthic Zone
The communities of organisms occupying the benthic zone
Benthos
Dead organic matter sinking down toward the benthic zone from the photic zone
Dentritus
In the ocean and in most lakes, a narrow layer of abrupt temperature change separating more uniformly warm upper layers from more uniformly cold deeper waters
Thermocline
A semiannual mixing of lakewaters as a result of changing temperature profiles, in which oxygenated water from the surface is sent down to the bottom of the lake bringing nutrient rich water from the bottom to the surface in the spring and autumn
Turnover
Standing bodies of water
Lakes (or, if smaller, ponds)
Nutrient-poor, but oxygen-rich standing bodies of water
Oligotrophic Lakes
Nutrient-rich, oxygen-depleted standing bodies of water
Eutrophic Lakes
The shallow, well-lit waters close to a lake’s shore
Littoral Zone
The area of a lake too deep for rooted aquatic plants
Limnetic Zone
A habitat that is inundated by water at least some of the time and that supports plants adapted to water-saturated soil
Wetland
A large natural stream of water flowing in a channel to the sea, a lake, or another such stream
River
A small, narrow river
Stream
A transition area between river and sea
Estuary
An aquatic biome which is periodically submerged and exposed twice daily on most marine shores
Intertidal Zone
A vast realm of open blue water, constantly mixed by wind driven oceanic currents
Oceanic Pelagic Zone
Aquatic biome formed largely from the calcium carbonate skeletons of corals
Coral Reef
The seafloor below the surface waters of the coastal and oceanic pelagic zones
Marine Benthic Zone
Surface waters of the ocean coast
Neritic Zone
An opening in the sea floor out of which heated mineral-rich water flows
Hydrothermal Vent
The movement of individuals or gametes away from their area of origin or from centers of high population density
Dispersal
When organisms reach an area where they did not exist previously
Range Expansion
Define the following term:
Ecology
The scientific study of the interactions between organisms and the environment
Define the following term:
Organismal Ecology
The study of how an organism’s structure, physiology, and behavior meet the challenges posed by its environment
Define the following term:
Population
A group of individuals of the same species living in an area
Define the following term:
Population Ecology
Study of the factors that affect population size and how and why it changes through time
Define the following term:
Community
A group of populations of diffeent species in an area
Define the following term:
Community Ecology
The study of how interactions between species, such as predation and competition, affect community atructure and organization
Define the following term:
Ecosystem
The community of organisms in an area and the physical factors with which those organisms interact
Define the following term:
Ecosystem Ecology
The study of energy flow and chemical cycling between organisms and the environment
Define the following term:
Landscape or Seascape
A mosaic of connected ecosystems
Define the following term:
Landscape Ecology
The study of the factors controlling exchanges of energy, materials, and organisms across multiple ecosystems
Define the following term:
Biosphere
The global ecosystem - the sum of all the planet’s ecosystems and landscapes
Define the following term:
Global Ecology
The study of how the regional exchange of energy and materials influences the functioning and distribution of organisms across the biosphere
Define the following term:
Tropics
The regions that lie between 23.5º north latitude and 23.5º south latitude
Define the following term:
Climate or Macroclimate
The long-term prevailing weather conditions in a given area
Define the following term:
Microclimate
Very fine, localized patterns in climatic conditions
Define the following term:
Abiotic
Nonliving
Define the following term:
Biotic
Living
Define the following term:
Climate Change
A directional change to the global climate that lasts three decades or more
Define the following term:
Climograph
A plot of the annual mean temperature and precipitation in a particular region
Define the following term:
Biome
A major life zone characterized by vegetation type (or aquatically by physical environment)
Define the following term:
Ecotone
The area of integration where neighboring biomes grade into one another
Define the following term:
Canopy
The uppermost trees or branches of the trees in a forest, forming a more or less continuous layer of foliage
Define the following term:
Disturbance
An event such as a storm, fire, or human activity that changes a community, removing organisms from it and altering resource availability
Define the following term:
Tropical Rain Forest
A forest with high rate of precipitation and high humidity, usually located near the equator
Define the following term:
Tropical Dry Forest
A forest characterized by a pronounced dry season during part of the year
Define the following term:
Desert
A dry, barren area of land, especially one covered with sand, that is characteristically desolate, waterless, and without vegetation
Define the following term:
Savanna
A grassy plain in tropical and subtropical regions, with few trees
Define the following term:
Chaparral
An ecological biome composed of shrubby plants adapted to dry summers and moist winters
Define the following term:
Temperate Grasslands
Areas of open grassland with very few trees, like savannas, but located in colder climate regions which receive less precipitation on average than savannas
Define the following term:
Northern Coniferous Forest
A biome that occupies a vast area below the tundra, characterized by a longer and warmer growing season
Define the following term:
Temperate Broadleaf Forest
A biome known for known for the turning of the colors of its deciduous leaves to brilliant reds, oranges, and golds in autumn
Define the following term:
Tundra
A vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen
Define the following term:
Photic Zone
The region of an aquatic biome where there is sufficient light for photosynthesis
Define the following term:
Aphotic Zone
The region of an aquatic biome where little light penetrates
Define the following term:
Pelagic Zone
The photic and aphotic zones of an aquatic biome
Define the following term:
Abyssal Zone
The part of the ocean 2,000 m to 6,000 m below the surface
Define the following term:
Benthic Zone
The zone of an aquatic biome made up of sand and organic and inorganic sediments
Define the following term:
Benthos
The communities of organisms occupying the benthic zone
Define the following term:
Dentritus
Dead organic matter sinking down toward the benthic zone from the photic zone
Define the following term:
Thermocline
In the ocean and in most lakes, a narrow layer of abrupt temperature change separating more uniformly warm upper layers from more uniformly cold deeper waters
Define the following term:
Turnover
A semiannual mixing of lakewaters as a result of changing temperature profiles, in which oxygenated water from the surface is sent down to the bottom of the lake bringing nutrient rich water from the bottom to the surface in the spring and autumn
Define the following term:
Lakes (or, if smaller, ponds)
Standing bodies of water
Define the following term:
Oligotrophic Lakes
Nutrient-poor, but oxygen-rich standing bodies of water
Define the following term:
Eutrophic Lakes
Nutrient-rich, oxygen-depleted standing bodies of water
Define the following term:
Littoral Zone
The shallow, well-lit waters close to a lake’s shore
Define the following term:
Limnetic Zone
The area of a lake too deep for rooted aquatic plants
Define the following term:
Wetland
A habitat that is inundated by water at least some of the time and that supports plants adapted to water-saturated soil
Define the following term:
River
A large natural stream of water flowing in a channel to the sea, a lake, or another such stream
Define the following term:
Stream
A small, narrow river
Define the following term:
Estuary
A transition area between river and sea
Define the following term:
Intertidal Zone
An aquatic biome which is periodically submerged and exposed twice daily on most marine shores
Define the following term:
Oceanic Pelagic Zone
A vast realm of open blue water, constantly mixed by wind driven oceanic currents
Define the following term:
Coral Reef
Aquatic biome formed largely from the calcium carbonate skeletons of corals
Define the following term:
Marine Benthic Zone
The seafloor below the surface waters of the coastal and oceanic pelagic zones
Define the following term:
Neritic Zone
Surface waters of the ocean coast
Define the following term:
Hydrothermal Vent
An opening in the sea floor out of which heated mineral-rich water flows
Define the following term:
Dispersal
The movement of individuals or gametes away from their area of origin or from centers of high population density
Define the following term:
Range Expansion
When organisms reach an area where they did not exist previously