Ecosystem is a biological system which consists of the two main components: the live organisms and the environment where they live. There are complicated connections between these two components which enable the system exist as a single independent unity. Ecosystem is one of the core terms of ecology. The most evident example of the ecosystem is the pond, which contains water plants, microorganisms, reptiles, fish of different kinds and sizes which coexist together and support the life of the whole pond, which provides them with the specific type of fresh water, the required temperature and chemical composition of the water essential for the life of various organisms.
24.2: Introduction to Ecology
Roles and Relationship in an Ecosystem - Term Paper
Ecology is the scientific study of interaction between organisms and their environment. It includes both biotic and abiotic factors. The level of organization of ecology is in such a way i. Biomes are the environments that have characteristics of not changing too much over time. There are few biomes in the world like: Aquatic rivers, streams, lakes, open sea zone, deep sea zone, neritic zone and Terrestrial tundra, taiga, grass land, tropical rainforest, and desert. The three basic approaches that conduct the ecological methods are observing, experimenting and modelling.
Camille grew up in a rural farming community, and both of her parents worked on a local farm. This is because many pesticides, which are substances that protect plants from damage and destruction by pests such as insects, can be hazardous to human health if inhaled, consumed, or absorbed through the skin. Camille began to wonder—if pesticides can be dangerous to humans, do they have negative effects on other animals and the rest of the environment?
This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. Trophic cascades refer to impacts that reach beyond adjacent trophic levels. Students then test their understanding of trophic cascades in four other case studies, where they predict the relationships among different species and the consequences of ecosystem changes.