What makes primary sources different from secondary research sources?
What makes primary sources different from secondary research sources?
Primary sources provide a first-hand account of an event or time period and are considered to be authoritative. They represent original thinking, reports on discoveries or events, or they can share new information. Secondary sources involve analysis, synthesis, interpretation, or evaluation of primary sources.
What type of succession would take the longest and why?
Explanation: Secondary succession usually occurs faster than primary succession because the substrate is already present. In primary succession, there is no soil and it needs to form. This process takes time, as pioneer species must colonize the area, they must die, and as this happens over and over again, soil forms.
Which successional stage lasts the longest?
primary succession
What are the 3 types of succession?
Types of Ecological Succession
- Primary Succession. When the planet first formed, there was no soil.
- Secondary Succession. The above graphic is an example of secondary ecological succession.
- Cyclic Succession.
- Acadia National Park.
- Coral Reef Ecological Succession.
What are some possible causes of succession in ecosystems?
Possible answers include, human activity, such as logging and deforestation leading to succession. Large changes in the vegetation of an area can lead to loss of complex species through migration or starvation due to fewer resources. These ecosystems would have to undergo succession to recover the more complex species.
How does primary succession begin?
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment. These grasses further modify the soil, which is then colonized by other types of plants.
What is the main reason that succession is important in maintaining ecosystems?
The main reason that succession is important in maintaining ecosystems is that Succession ultimately leads to climax communities, which are stable and sustainable.
What are the characteristics of a climax community?
A climax community refers to a stable ecosystem in its final stage of ecological succession. Succession is when one community of plants and animals replaces another in an ecosystem. In a climax community, the plants and animals are in balance with each other and their environment.
What is an example of a climax community?
A climax community is one that has reached the stable stage. When extensive and well defined, the climax community is called a biome. Examples are tundra, grassland, desert, and the deciduous, coniferous, and tropical rain forests.
What are two things that can disrupt a community?
Disturbances such as fire or flood can disrupt a community. After a disturbance, new species of plants and animals might occupy the habitat. Over time, the species belonging to the climax community are likely to return.