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Ecosystem Notes
Ecosystem Notes

...  The word, ecosystem, comes from the Greek words oikos (house) and logos (study of).  A more biological definition of ecology says that it is the study of interactions of organisms with one another and with their physical environment. The physical location where organisms interact is called an eco ...
Ecosystems - MrsMorritt
Ecosystems - MrsMorritt

... _________________ which digest complex organic molecules and convert them to simple __________________________ . These may then be cycled through the ecosystem by _______________________ which absorb them through their ________________. DETRITIVORES are organisms which feed on dead material. They ar ...
Levels of Organization in the Ecosystem
Levels of Organization in the Ecosystem

... • All the different populations in a specific area or region at a certain time. • Communities involve many types of interactions among the populations. • Some of these interactions involve the obtaining and use of food, space, or other environmental resources. › Example – all of the living organisms ...
Chapter 4 Notes
Chapter 4 Notes

... • Sometimes the ecosystem will find and equilibrium in which different species dominate after a change. ...
Cycling of Matter in an Ecosystem
Cycling of Matter in an Ecosystem

... • When nitrogen and phosphorus are used as part of fertilizers they end up in the water supply. • The algae over grow when nitrogen and phosphorus are at high levels. The algae can release toxins that poison the local wildlife. • When the algae die the bacteria doing decomposition use up the oxygen ...
Ecosystems - funtastic physics
Ecosystems - funtastic physics

... If there are others of its kind, this is called a species. The number of this species is called the population. Populations interact to form habitats. Are there other organisms that live in this environment? If yes, what organisms? _______________________________________________. Add these organisms ...
ecosystem - Teacher Pages
ecosystem - Teacher Pages

... interior of North America and other continents, and are dominated by species of grasses and other herbaceous plants. ...
Ecology Summary - Austin Community College
Ecology Summary - Austin Community College

Ecology Review Worksheet- KEY
Ecology Review Worksheet- KEY

... CO2 (carbon dioxide) in the atmosphere is taken in by plants to make sugars during photosynthesis,  herbivores/omnivores eat the plants’ stored sugars (C6H12O6), carnivores eat the herbivores/omnivores  who ate the plants, when consumers die decomposers break them down and absorb their body’s stored ...
Chapter 4 Section 2 What Shapes an Ecosystem?
Chapter 4 Section 2 What Shapes an Ecosystem?

... or different species competing for a resource (light, food, nutrients, and/or space) • Direct competition in nature results in a winner (survives) and a loser (fails to survive) ...
ecosystems
ecosystems

... much of energy is actually available to the next trophic level? Usually around 10% is available Why is it that we don’t see 6th order consumers? ...
Worksheet - Rudds Classroom
Worksheet - Rudds Classroom

... • _______________________ structure is also an important aspect of ecosystem stability • A more ________________ ecosystem will return to a steady pattern of energy flow and nutrient cycling with ______________ evolutionary, food-web, and abiotic environmental _____________ • Averaged over longer pe ...
ecology ppt
ecology ppt

... • a. Habitat - where it lives in the ecosystem • b. Relationships - all interactions with other species in the ecosystem • c. Nutrition - its method of obtaining food. ...
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Document

... • Net primary production (NPP): what is left over for consumers. It is the amount of new biomass added by autotrophs ...
Living Earth
Living Earth

... ecosystem that belong to the same species. – A community is all the populations in an ecosystem. ...
Ecosystems with fill
Ecosystems with fill

... influences on organisms within an ecosystem; entire living cast of characters with which an ...
1) Chapter 21 - Ecology Vocabulary
1) Chapter 21 - Ecology Vocabulary

... Chapter 21 – Ecology Vocabulary Ecology – study of the interactions that take place among organisms and their environment. Ecosystem – all the living organisms in an area, as well as the nonliving parts of their environment. Community of organisms – producers, consumers, and decomposers that interac ...
1. biodiversity glossary
1. biodiversity glossary

... community. It contianis communities that are considered more environmental stable than those of ectones. ‘goods’ are direct products that can be derived from an ecosystem and ‘services’ are the benefits that the ecosystem provides The variability amongst living organisms from all sources including t ...
Populations and Communities Living Things and the Environment
Populations and Communities Living Things and the Environment

... a. All the different populations that live together in an area. b. Examples: All the white-tailed deer, Maple trees, Gray squirrels, American crows and Black bears in Bergen County. All the Palm trees, American alligators, and Flamingos in the Florida Everglades. ...
apes final exam fall 09
apes final exam fall 09

... 30.Transfer of carbon between organisms depends primarily on which two processes? 31.Nodules containing nitrogen-fixing bacteria would be expected to occur on the roots of what class of plants? 32.Nitrogen gas is converted to ammonia through what process? 33.Nitrate is converted to nitrogen gas thro ...
The Biosphere - Kania´s Science Page
The Biosphere - Kania´s Science Page

... Each location or step in a food chain or food web represents a trophic level.  Examples: producers, primary consumers, secondary consumers, etc. ...
Biology Chapter 3 (The Biosphere)
Biology Chapter 3 (The Biosphere)

... Each location or step in a food chain or food web represents a trophic level.  Examples: producers, primary consumers, secondary consumers, etc. ...
Ecosystems - geo
Ecosystems - geo

... (plants, animals, soil, bacteria, fungi) and abiotic (water, air, minerals, nutrients, light) components interrelate to form a natural ...
Aquatic ecosystem
Aquatic ecosystem

...  Ecosystem- natural unit consisting of all plants, ...
Ecosystem Relationships
Ecosystem Relationships

... another in communities. In an ecosystem, a community of living things interacts with many different nonliving things. When one thing changes in an ecosystem, other parts of the ecosystem are affected due to the complexity of relationships in an ecosystem. ...
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Ecosystem



An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms, and between organisms and their environment, they can be of any size but usually encompass specific, limited spaces (although some scientists say that the entire planet is an ecosystem).Energy, water, nitrogen and soil minerals are other essential abiotic components of an ecosystem. The energy that flows through ecosystems is obtained primarily from the sun. It generally enters the system through photosynthesis, a process that also captures carbon from the atmosphere. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes.Ecosystems are controlled both by external and internal factors. External factors such as climate, the parent material which forms the soil and topography, control the overall structure of an ecosystem and the way things work within it, but are not themselves influenced by the ecosystem. Other external factors include time and potential biota. Ecosystems are dynamic entities—invariably, they are subject to periodic disturbances and are in the process of recovering from some past disturbance. Ecosystems in similar environments that are located in different parts of the world can have very different characteristics simply because they contain different species. The introduction of non-native species can cause substantial shifts in ecosystem function. Internal factors not only control ecosystem processes but are also controlled by them and are often subject to feedback loops. While the resource inputs are generally controlled by external processes like climate and parent material, the availability of these resources within the ecosystem is controlled by internal factors like decomposition, root competition or shading. Other internal factors include disturbance, succession and the types of species present. Although humans exist and operate within ecosystems, their cumulative effects are large enough to influence external factors like climate.Biodiversity affects ecosystem function, as do the processes of disturbance and succession. Ecosystems provide a variety of goods and services upon which people depend; the principles of ecosystem management suggest that rather than managing individual species, natural resources should be managed at the level of the ecosystem itself. Classifying ecosystems into ecologically homogeneous units is an important step towards effective ecosystem management, but there is no single, agreed-upon way to do this.
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