Natural ecosystems and agricultural ones differ mainly in the energy input and the productivity. In natural ecosystems, the sun is the sole source of energy and much of the land would be covered by forests if it were allowed to develop naturally, known as the climax community. This community is obtained through succession, in which simple communities are replaced by much more complex ones. Each successive community harbors many other life forms, and therefore having a great species diversity, for example, the desert and tropical rain forests are such climax communities. In order for the agricultural ecosystem to have a high productivity,…
| The efficiency of energy transfer from a lower trophic level to the next highest level is roughly:Answer…
Sorry guys that this is so late... I just had to go to sleep. Anyways, this guide is to help inspire you about the essay prompts and provide a little info, you'll have to do additional research on your own. Also, I'll try to bring up better examples.…
What happens to the 90% of energy that does not transfer to the next trophic level in a food chain?…
Question: how much energy is transferred from one trophic level to the next trophic level?…
Succession is described as predictable patterns of change over time and specifically, in ecology, as the predictable pattern of change in the species structure of an ecological community over time. There are two types of succession; primary and secondary. Primary succession refers to the successional development of plant communities that takes place on a site formerly devoid of vegetation and usually lack well developed soil. Secondary succession refers to the…
Klinger, L. J., Hamilton, J. A., & Cantrell, P. J. (2001). Children's perceptions of aggressive and gender-specific content…
Succession, the process of a community changing over time, can be broken down into sub groups such as ecological, primary, pond, and secondary. Ecological succession being the most basic. In the Succession Lab, we observed a community in a ecosystem. As we recorded the data each class, we observed that succession takes place with rapid speed for in each observation, a new specimen is identified.…
An ecosystem is a biological community of interacting organisms and their physical environment. Ecosystems can be changed by both human activity and natural succession. Ecological succession is the observed process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction. This essay aims to identify ways in which vegetation has transformed over time, and to evaluate the importance of both human and physical factors.…
The levels of organization of a community is simple. It starts with the primary producer, then the primary consumer, secondary consumer, tertiary consumer, and lastly the decomposer. Some examples of producers are algae, sea weed, and any other type of potosynthetic organism. A pyramid of production is a pyramid that shows the loss of energy with each transfer in a food chain. At the bottom of the pyramid are the large amount of autotrophs with the most energy. The next (but smaller) level is the group of primary consumers (insects and other herbivores) who only get ten percent of the autotroph’s energy. Next are the small group of secondary consumers, who only get ten percent of the primary consumer’s energy. The top level consists of the smallest group, the tertiary consumers who only receive ten percent of the secondary consumer’s…
Explain how ecosystems recover naturally based on resilience mechanisms and the theory of secondary succession.…
b. decomposer- an organism that feeds on and breaks down dead plant or animal matter.…
Succession, a series of environmental changes, occurs in all ecosystems. The stages that any ecosystem passes through are predictable. In this activity, you will place the stages of succession of two ecosystems into sequence. You will also describe changes in an ecosystem and make predictions about changes that will take place from one stage of succession to another.…
over time. An example of ecological succession in The Lion King is when Scar, a lion, takes…
Some of the most obvious physical factors which cause change in ecosystems can be seen through succession; for example in the sand dune ecosystem in Talacre, North Wales you can see how the vegetation changes with distance from the high mark. The further in land you travel across the sand dunes the more densely the vegetation become and the wider the variety of species that grow there become. This is because the fore dunes have many physical factors which inhibit the growth of flora; there is little soil with almost no shelter from wind or the sun. This means that only very few species can establish and survive here, in sand dune ecosystems the pioneer species is often Marram grass. The growth of the Marram grass changes the physical factors in the area as it provides shelter for other plants and animals and their root begin help to improve the soil structure which is a hugely important factor as without a good soil structure many plants will not grow as they need the soil to drain efficiently and to contain the detrifying bacteria which make nitrogen compounds available for plants. Nitrogen along with other nutrients which are also essential factors for plant growth and development are increased by improved soil structure. The further inland across the sand dunes you travel the better all these factors become which is why the species diversity increase so greatly. The wider the variety of plants which grow in an area then the more ecological niches are created and so the more different species of animals can survive there. The main physical factors which cause change in sand…