Podcast
Questions and Answers
Which type of population growth involves the population size increasing rapidly at first, then slowing down and eventually leveling off?
Which type of population growth involves the population size increasing rapidly at first, then slowing down and eventually leveling off?
- Exponential population growth
- Linear population growth
- Stagnant population growth
- Logistic population growth (correct)
What happens to a population with a high mortality rate?
What happens to a population with a high mortality rate?
- It is likely to grow
- It is likely to fluctuate
- It is likely to decline (correct)
- It is likely to remain stable
What is the main factor that limits the rate of growth in Logistic Population Growth?
What is the main factor that limits the rate of growth in Logistic Population Growth?
- High mortality rate
- Scarce resources (correct)
- Linear growth pattern
- Exponential growth rate
Which type of population movement involves individuals moving out of a particular area?
Which type of population movement involves individuals moving out of a particular area?
What kind of graph does Exponential Population Growth typically produce over time?
What kind of graph does Exponential Population Growth typically produce over time?
Why might a population with low mortality rates be expected to grow?
Why might a population with low mortality rates be expected to grow?
At which level of ecological organization does ecology focus on individual organisms' behavior, physiology, and morphology?
At which level of ecological organization does ecology focus on individual organisms' behavior, physiology, and morphology?
What is the primary reason why only 1 unit of energy is available to the secondary consumers?
What is the primary reason why only 1 unit of energy is available to the secondary consumers?
Which level of organization in ecology involves studying interactions between different populations?
Which level of organization in ecology involves studying interactions between different populations?
Which biome is characterized by the presence of scattered trees and a continuous herbaceous layer of grasses?
Which biome is characterized by the presence of scattered trees and a continuous herbaceous layer of grasses?
What does the term 'population' refer to in ecology?
What does the term 'population' refer to in ecology?
In which biome are trees and large shrubs absent?
In which biome are trees and large shrubs absent?
Where are tropical deserts primarily located?
Where are tropical deserts primarily located?
Which level of ecological organization includes interactions between living organisms and their physical environment?
Which level of ecological organization includes interactions between living organisms and their physical environment?
Why do ecological patterns and processes vary as a function of the level of organization being studied?
Why do ecological patterns and processes vary as a function of the level of organization being studied?
Which biome experiences the highest average monthly temperatures on Earth?
Which biome experiences the highest average monthly temperatures on Earth?
In which biome might rainfall be sporadic and not observed for several years?
In which biome might rainfall be sporadic and not observed for several years?
Where is Alpine tundra typically found?
Where is Alpine tundra typically found?
What defines a terrestrial biome?
What defines a terrestrial biome?
Why do tropical rainforests thrive near the equator?
Why do tropical rainforests thrive near the equator?
How does elevation impact temperature in terrestrial biomes?
How does elevation impact temperature in terrestrial biomes?
What type of climate is characteristic of tropical rainforests?
What type of climate is characteristic of tropical rainforests?
Why are snow-capped mountains mentioned in the text?
Why are snow-capped mountains mentioned in the text?
What effect does latitude have on biome type?
What effect does latitude have on biome type?
Where does the intertidal zone in the ocean exist?
Where does the intertidal zone in the ocean exist?
Which ocean zone includes the waters further from the land?
Which ocean zone includes the waters further from the land?
What is a key characteristic of the benthic ocean zone?
What is a key characteristic of the benthic ocean zone?
Why is temperature known to generally decrease as depth increases in the ocean?
Why is temperature known to generally decrease as depth increases in the ocean?
Which ecosystem covers about three-fourths of the Earth's surface?
Which ecosystem covers about three-fourths of the Earth's surface?
What makes the ocean zones like intertidal, pelagic, abyssal, and benthic diverse in species?
What makes the ocean zones like intertidal, pelagic, abyssal, and benthic diverse in species?
Study Notes
Ecological Efficiency
- Only 10 units of energy are available to primary consumers for every 100 units of energy available to primary producers
- Only 1 unit of energy is available to secondary consumers
- Energy is lost as heat during the transfer process
Levels of Organization of Ecology
- Four fundamental levels of organization: individual, population, community, and ecosystem
- Each level of organization has different ecological patterns and processes
Individual Level
- Focuses on how individual organisms are affected by and affect their environment
- Includes organismal ecology, which deals with individual organisms' behavior, physiology, morphology, etc.
Population Level
- Refers to a group of individuals of the same species living in a specific geographic area
- Mortality rate: the rate of deaths in a population
- Population growth: how the size of a population is changing over time
- Types of population growth: exponential and logistic
Exponential Population Growth
- Population size increases by a constant amount over time
- Graph of population size over time is a straight line
Logistic Population Growth
- Population size increases rapidly at first, then slows down and eventually levels off
- Due to the scarcity of resources as population size increases
Population Movement
- Refers to the movement of individuals into or out of a population area
- Emigration: one-way movement of a population out of a particular area
Terrestrial Biomes
- An area of land with a similar climate and similar communities of plants and animals
- Defined in terms of their plants, such as trees, shrubs, and grasses
- Factors affecting biome type: latitude, humidity, and elevation
Types of Terrestrial Biomes
- Forests: Tropical Rainforest, Temperate Deciduous Forest, Tropical Dry Forest, Boreal Forest, Temperate Rainforest
- Grasslands: Savanna, Temperate Grassland
- Deserts: Tropical Desert, Temperate Desert
- Tundras: Alpine Tundra, Arctic Tundra
Aquatic Biomes
- Marine Regions: Oceans, Coral Reefs, Estuaries
- Oceans: largest of all ecosystems, covering about three-fourths of the Earth's surface
- Zones of the ocean: intertidal, pelagic, abyssal, and benthic
Intertidal Zone
- Where the ocean meets the land
- Communities are constantly changing due to waves and tides
Pelagic Zone
- Waters further from the land, basically the open ocean
- Temperature range varies due to constant mixing of warm and cold water
Benthic Zone
- Area below the pelagic zone, but does not include the very deepest parts of the ocean
- Temperature decreases as depth increases toward the abyssal zone
Abyssal Zone
- The deepest part of the ocean
- Light cannot penetrate through the deeper water
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Description
Learn about terrestrial biomes, areas of land with similar climate and communities of plants and animals, in this beautifully designed PowerPoint presentation. Explore how factors like latitude, humidity, and elevation influence the type of biome. Discover the different types of plants that define each terrestrial biome.
