Plants and Animals
Human Disruptions
Natural Disruptions
Definitions
100
RIGHT AFTER the damage, many animals will migrate into a naturally disrupted area.
True or False?
False
100
What type of habitat destruction is this an example of:
Habitat Fragmention
100
Natural Disruptions can be beneficial
True or False?
True
100
What is Biodiversity?
The variety of genetics, species, and ecosystem level on Earth
200
The Guam Rail is an extinct organism,
True or False?
False, the Guam Rail was almost lost because of the invasive Brown Tree Snake
200
What do these pictures have in common
Human destruction of habitats usually leads to the endangerment of animals living in them.
200
What type of Natural Disturbance can be beneficial? Why?
Flooding - Species can move into new areas and expand their range of distributions
Wildfires - Naturally occurring fires can increase soil erosion and cause death to large amounts of vegetation
Meteors/ Asteroids
200
What does anthropogenic mean?
Something that is caused by human activity
300
Silphium's growth in popularity led to what?
Extinction
300
Name 3 out of 5 types of Human Destructions
- Habitat Destruction
- Invasive Species
- Climate Change
- Overexploitation
- Pollution
300
Name 3 (out of 6) types of Natural Disruptions:
Fires/ Volcanic eruptions
Flooding/ Hurricanes
Droughts
Disease Epidemics
Avalanches/ Landslides
Geological and Meteorological events
300
What is overexploitation?
The unsustainable use of natural resources as harvesting exceeds reproduction of plant & animal species.
400
What makes a species invasive?
A species new to the enviornment that devastate the ecosystem
Ex: Black Rats, Brown Tree Snake
400
What are destructive consequences of human activity?
Global Climate Change, deforestation, acid rain, reduction in species diversity, ozone depletion, desertification, and pollution.
400
This is NOT an example of a random natural disruption:
A. Tornado
B. Annual wild Fire
C. Volcano
D. Hurricane
B. Annual wild fire
400
Which of the following does the concept of fitness contribute to?
a. age
b. physical strength
c. survival & reproduction
c. survival & reproduction
500
Northern Elephant seals were hunted by humans in the 1800s, reducing their population size to 20 individuals. Even though their population is now over 30,000, the seals still have reduced genetic variation. What's the best explanation of this phenomenon.
A. Bottleneck effect
B. Founder Effect
C. Heterozygote Advantage
D. Relative Fitness
A. Bottleneck Effect
500
Out of the 3 below, which one primarily is caused by humans?:
Actual Destruction, Habitat Fragmentation, Habitat Degradation
Habitat Fragmentation because in the image below it shows how humans pave roads which at times disrupt the natural flow of the ecosystem in habitats like where deer consist of, which is why deer crossing over streets is a thing, which endangers them.
500
The brown rat is an omnivorous mammal native to central Asia. These rats can eat a huge variety of foods including birds, fish, insects, seeds, and roots. The brown rat is currently on an international list of invasive species.
Which of the following best predicts the consequences of introducing brown rats to an island where they did not previously exist?
A. The rat population will grow rapidly, disrupting the island's community structure by feeding on Native Plants and Animals
B. The rat population size will likely remain small, and as a result the rats will not be Abe to outcompete other organisms for resources
C. Without any natural predators, the rat population will become established and help increase the species diversity of the Island
A. The rat population will grow rapidly, disrupting the island's community structure by feeding on Native Plants and Animals
The Brown rat is classified as an invasive species, so its population is likely to grow exponentially after being introduced to a new island. The resulting rat population will feed on the island's native plant and animals, likely reducing their populations and disrupting the island's community structure.
500
B. With more water availability, species adapted for wetter environments will become dominant in the region, outcompeting other species for resources.
C. With less water availability, species that are not adapted to drought conditions will go extinct from the region, disrupting community structures.
C. With less water availability, species that are not adapted to drought conditions will go extinct from the region, disrupting community structures.
The graph shows that in the first half of the 20th century, April-October Rainfall was mostly above the 1961-1990 average. This overall decrease in rainfall is likely to lead to less water availability in southwestern Australia, which will likely change species compositions and disrupt current ecosystem structures.