Succession Flashcards
Scientists found, that over a period of 200 years, a mountain pond was transformed into a meadow. During that time, several communities of organisms were replaced by different communities. Which of these best explains why new communities were able to replace older communities?
The abiotic characteristics of the habitat changed.
A volcano in a mountainous, wooded region erupts, spewing tons of ash and destroying the forested area around the volcano. If the volcano remains dormant during
the next 1000 years, what will probably happen?
The area will be repopulated by trees, eventually becoming a forest again
Abandoned railroad tracks are overgrown with weeds. Ten years later there are small aspen trees growing in the middle of the tracks. This change is an example of:
Secondary succession
Several years after a building had been torn down and the ground cleared, grasses began to grow in that area. After 10 years, small bushes replaced the grasses. This pattern of plant growth is known as:
Ecological Succession
Which of the following is not a result of climate change partially caused by burning fossil fuels?
Leaves changing color in the fall months
How has the invasion of pythons effected the everglades ecosystem in terms of species numbers?
The pythons could prey on native organisms and cause native populations to decline.
Which of the following is not a possible cause of ecological succession?
change of season
Which of the following describes how an abiotic factor can impact the population dynamics in an ecosystem?
Seasonal variations in temperature can cause some of the individuals in a population to die.
Which is a natural cause of
ecosystem change?
Hurricane
Natural disturbances, such as fires or hurricanes, can result in
Succession
The end result of ecological succession is usually a(n)
climax community.
How is primary succession different from secondary succession?
Primary succession starts with bare rock, with lichens and moss.
Examples of Abiotic Factors include:
Weather, wind, rain, sunlight, and rocks
Which of these organisms would you most expect to find on a small island that formed as a result of a volcanic two years prior?
lichen
Which of the following best
describes biodiversity
variety of all life on earth
Which of the following is an example of primary succession?
lichens growing on rocks following a volcanic eruption
