Unit B Flashcards
What are the different types of interactions in an ecosystem?
Competition, mating behavior, symbiotic relationships
What is ecology?
The study of relationships organisms have with each other and their environment
What are the types of competition? Explain each one
Intraspecific competition which occurs when species compete with itself for resources
Interspecific competition which occurs when two or more species comepete for resources
What is mating behavior?
Some organisms will exhibit a dance, or meeting call in order to attract a mate
For example, birds of paradise
What are the types of symbiotic relationships? Explain each one
Mutualism, both benefit
Commensalism, one benefits, other is neutral
Parasitism, one benefits and one is harmed
What is an ecosystem?
Regions of the biosphere where biotic and abiotic factors interrelate through the flow of energy and the cycling of matter
What type of energy drives ecosystems?
Solar energy
Explain the boundaries in ecosystems
Some have distinct boundaries (ocean)
Others run into each other (forest and Meadow)
What are all ecosystems made of?
Populations and communities
What is a population?
All the same species living together. They are within the same area and share resources
What is a community?
Different populations living together. Within the same area and share resources
What are Ecotones? What happens to the biodiversity in ecotones?
Eco-tones are areas between ecosystems. They contain the most biodiversity because it’s where most organisms interact
What is a niche?
The role an organism place in the ecosystem
What does a niche consist of?
Place in food web, breeding area, habitat, time of day it’s most active
What do niche’s due to competition?
It reduces competition between species for the same resources
For example, Owls and hawks both hunt mice but in different sections of the forest
What is the biosphere?
The thin layer around the earth consisting of 99% of life. Atmosphere, lithosphere, hydrosphere
What are biomes?
Large geographical regions of the biosphere
What does each biome have?
A specific range of temperature, precipitation, vegetative patterns, adapted organisms
Canada has ______ major terrestrial biomes. What are they?
Four.
Tundra, taiga/Boreal, grassland, temperate deciduous forest
What types of terrestrial ecosystems are there?
Muskey, taiga, grassland, deciduous
Is the amount of light, water temperature, and oxygen levels the same throughout the lake?
No
What are the three main zones of a lake?
Littoral zone, limnetic zone, profundal zone
What is the Litorell zone? Describe its light levels and nutrient levels
Begins at the Lakeshore, extends to the point where plants no longer take root.
It is the shallowest part of the lake
Light is able to penetrate, making this the most productive part of the lake
What is the limnetic zone? What is the most common organism?
Area of Lake in which there is a lot of open water. Plankton are the most common organism in this area