Ecology Answers

Evaluate evidence for and against the theory that an increase in the concentration of carbon dioxide in the atmosphere causes an increase in air temperature.

how many animal phylum in classification?

What is the trend (1980-2020) in the acidity levels of the Weija Lake

the biomass of decomposers was reduced from 56 gm-2 to 3 gm-2 from rainy season 1 to rainy season 2. suggest the effect this will have on the recycling of nutrients.

Using this estimate, the energy of the cabbage field was calculated as 15,600 kJ m-2. Does this represent the gross or net primary production? Give a reason for your answer.

The Arctic hare ingests 18,905 kJ m-2 yr-1 of food. Its net productivity is 2345kJm-2 yr-1. Calculate the total energy loss of the arctic hare.

The net productivity of the different trophic levels in the food chain are as follows:


Grass: 13,883kJ m-2 yr-1

Arctic hare: 2345 m-2 yr-1

Arctic fox: 137 m-2 yr-1


Explain why the net productivity of the Arctic hare is less than the net primary productivity of the grass.

What type of relationship do food webs and food chains depict?

Relevance of neutral theory and functional niche complementarity to community restoration

What I Know About Invasive Species ? What I Want To Know About Invasive Species ?