Julia- Eco Quiz #2 Flashcards
What is a limiting factor?
A limiting factor is a resource or other factors that can lower the population growth rate
How do limiting factors affect birth rates and death rates?
Limiting factors can decrease birth rates and increase death rates.
What is Emigration?
Emigration is oraganisms leaving a population?
What are some examples of BIOTIC factors that can limit population growth?
- Predation - Competion - Paristies/Disease - Humans
What are some examples of ABIOTIC factors that can limit population growth?
- Water - Salt - Sunlight - Temperature - nutrients in soil - oxygen
What are some examples of density-dependent factors?
- Compition - Diease - Parisites - Predation - avability of food
What are the examples of density-independent factors?
- Fire - Salinity - Natural disasters - weather
What is a carrying capacity?
A carrying capacity is the maxium number of oraganisms the rescources of an ecosystem can suport.
What are the characteristics of a Tundra?
- Lack of tress - Permafrost - Characterized by small shrubs, mosses, and lichens preasent - Cold and dry
What are the characteristics of a Desert?
- Little rainfall - Hot, aried climate - covers nearly 20% of the earth’s surface
What are the characteristics of a Chaparral forest?
- shrubby, coastal biome - hot summers but cool rainy winters - plauged by wildfires - oyotes, mountian lions, snakess and rabbits are preasent through out.
What are the characteristics of a Rainforest?
- The greatest amount of rainfall
- Covers 6% of Earth But home to 50% of the world’s species
- Important products such as fruit, medicine, lumber, and teas Come from this biome
What are some characteristics of a Boreal (Taiga/Coniferous forest)?
- Cold harsh climate with a short growing season
- dominated by evergreen trees that have needles
- Biodiversity is low because of harsh conditions
- Prone to wildfires
What are some characteristics of Grasslands?
- Deep-rooted grasses and trees
- Hot weather year round but can have torrential downpours to replenish the region
- few plants and animals
What are some characteristics of an Arctic Biome?
- Freezing climate during the year
- very little soil for growth
- World’s windiest place
- surrounded by oceans