Vocabulary
living things
biotic factors
what is conservation?
protection of natural habitats
the largest amount of an organism an ecosystem can support
carrying capacity
_________________ is when an organism leaves an area
emigration
where is the Serengeti?
Tanzania and Kenya
nonliving things
abiotic factors
- diverse mammal population
- the Great Migration
- high biodiversity
- protect the animals and plants
_________________ _________________ are important because they determine carrying capacity
limiting factors
_________________ is when an organism enters an area
immigration
main limiting factor of the wildebeest
grass
what is the variety of living things in a specific ecosystem called
biodiversity
write an example of something humans do that negatively impacts an ecosystem
Burning fossil fuels
Deforestation
Polluting water
Producing excessive plastic waste
Overfishing
pesticides
Destroying habitats by building roads, cities, and factories
Wasting resources
Releasing greenhouse gases
Littering
when looking at a graph you know a population is at carrying capacity when it...
levels off
A community of living organisms interacting with each other and their physical environment
ecosystem
how does rain affect the wildebeest migration?
write an example of an abiotic factor impacting a biotic factor
answers will vary (but they should make sense for points)
protect 30% of lands and waters by 2030 and protect ecosystems
why does migration increase carrying capacity?
more food is available when animals migrate
_________________ makes populations increase while _________________ makes populations decrease
emigration / deaths
2. what is the mortality factor for wildebeest?
1. something that causes death
2. starvation from lack of food
Seasonal movement of organisms from one place to another
migration
A town notices that the population of a local bird species has been decreasing each year. The town creates protected areas where trees cannot be cut down and limits human activity in those areas.
What is the main goal of these conservation efforts?
A. To increase the number of predators in the area
B. To protect habitats and help the bird population recover
C. To reduce competition between different bird species
D. To encourage the birds to migrate to a new location
B. To protect habitats and help the bird population recover
A population of deer lives in a forest ecosystem. At first, the deer population increases rapidly. After several years, the population size levels off and remains relatively constant.
Which factor most likely caused the deer population to stop increasing?
A. The deer adapted to survive colder winters
B. The forest reached its carrying capacity
C. The deer began reproducing more frequently
D. The forest increased the amount of available space
B. the forest reached its carrying capacity
Which of the following could explain why a little brown bat population is slow to recover after many bats in the population die during an outbreak of WNS?
A.The bats have a low birth rate.
B.The emigration rate of the bats decreases.
C.The immigration rates of bat predators decrease.
D.The flying insects that the bats eat have low death rates.
A. the bats have a low birth rate
1. where do the wildebeest spend the most time?
2. the least?
3. why do they spend the least time there?
1. south
2. north
3. it is rainy