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Which process is represented in the diagram below?
*
The diagram represents the changes in an area over time.
This series of changes in the area over hundreds of years is known as*
An ecological process is represented below.
Which statement describes an event in this process?*
Farmland abandoned in 1899 was observed to have significant changes in plant species over a 50-year period. The changes are shown in the chart below.
A forest fire burned all the trees on the land in 1955. Assuming no human interference, climate changes, or natural disasters, the plant species you would expect to see on this land in 2010 would most likely be*
Which situation is most likely to lead to ecological succession?*
Which statement describes an event that would most severely disrupt the process of ecological succession in an area?*
If the grass in the front yard of an abandoned house is not cut for several years, the yard may become overgrown with taller grasses, bushes, and shrubs. This is an example of the process of*
Over a long period of time, the stages represented in the diagram below were each present in a particular ecosystem.
After a forest fire, what is the most likely order in which these stages appeared?*
In New York State, small farms that were abandoned many years ago have become hardwood forests. This is an example of*
The diagram below represents different stages of an ecosystem over a period of time.
Which stage of the ecosystem has the greatest long-term stability?*
Base your answers to questions 11 on the graph below and on your knowledge of biology. The graph shows the masses of different types of plants found in an area of the Adirondack Mountains after a forest fire occurred.
Based on the information provided in the graph, the process that is occurring is*
Shawangunk Grasslands National Wildlife Refuge has been developed from an abandoned airport to restore habitat for six species of birds that require an area rich in tall grasses. Workers must continually remove trees that are beginning to invade the area as a result of*
Base your answers to questions 13 on the information below and on your knowledge of biology.
Nature Will Have to Clean Up Hawaii Molasses Leak That Killed Thousands of Fish
A massive spill of thick molasses has turned Honolulu Harbor into a watery wasteland where thousands of fish have been suffocated – a disaster that officials say Mother Nature will have to clean up.
“There’s nothing alive there at all,” diver Roger White told NBC affiliate KHNL after making a seven-minute video of dead sea life blanketing the bottom of the harbor.…
…“Unlike with an oil spill, it’s a sugar product so it will dissipate on its own,” Matson spokesman Jeff Hull told NBC News on Thursday. “There’s not an active cleanup.”
“The molasses is not toxic but it’s heavier than water so it’s spreading around on the sea floor, displacing the oxygen-rich water down there, and the fish are suffocating,” said Keith Korsmeyer, a professor of biology at Hawaii Pacific University.
The die-off also could lure predators like sharks, barracuda and eels to the harbor and neighboring Keehi Lagoon, experts warned.…
…Korsmeyer said marine life would probably repopulate the harbor, after the low- oxygen water moves out, but that could take months or even years.…
Source: http://www.nbcnews.com/news/other/nature-will-have-clean-
hawaii-molasses-leak-killed-thousands-fish-f8C11137030
Predict what will most likely happen to this ecosystem in 20 years if no other disasters occur. [1]*
Base your answers to questions 14 on the information and data table below and on your knowledge of biology.
The data table summarizes the changes that occurred to farmland in the years immediately following its abandonment. The land is located in a very stable ecosystem. It was abandoned after years of overuse and weathering, which resulted in the depletion of soil nutrients.
Assuming the ecosystem remains undisturbed, which type of vegetation would you expect to be most common in this area 200 years after it was first abandoned? Support your answer. [1]
Most common vegetation: ___________________________________________________*
Base your answers to question 15-16 on the diagram below and on your knowledge of biology. The diagram indicates a change in an ecosystem.
Identify some of the key events associated with the change. In your answer, be sure to:
• identify one natural event that could cause the disruption indicated in the diagram [1]
• state what would most likely happen to the new stable ecosystem in future years if no further disruptions occur [1]*
