4th Grade Unit Overview Ecosystems
... survive only in environments in which their particular needs are met. A healthy ecosystem is one in which multiple species of different types are each able to meet their needs in a relatively stable web of life. Newly introduced species can damage the balance of an ecosystem. (5-LS2-1) ...
... survive only in environments in which their particular needs are met. A healthy ecosystem is one in which multiple species of different types are each able to meet their needs in a relatively stable web of life. Newly introduced species can damage the balance of an ecosystem. (5-LS2-1) ...
Fundamentals of Ecology
... the synergy between decomposers and remineralizers maintains ecosystem function. The energy for an ecosystem is ultimately derived from the sun, but the remineralizers return the raw materials back to primary producers so they can sustain the trophic pyramids. ...
... the synergy between decomposers and remineralizers maintains ecosystem function. The energy for an ecosystem is ultimately derived from the sun, but the remineralizers return the raw materials back to primary producers so they can sustain the trophic pyramids. ...
ECOSYSTEMS PPQs 1. What are the two components of an
... If 2 000 000 kJ m–2 yr–1 is available from producers in an ecosystem, how much energy (in kJ m–2 yr–1) is usually available to the tertiary consumers? A. ...
... If 2 000 000 kJ m–2 yr–1 is available from producers in an ecosystem, how much energy (in kJ m–2 yr–1) is usually available to the tertiary consumers? A. ...
PPT
... released by living organisms. • At death, decomposers return the complex molecules of an organism to the environment. • The pool of inorganic nutrients is used by plants and other producers to build new organic matter. ...
... released by living organisms. • At death, decomposers return the complex molecules of an organism to the environment. • The pool of inorganic nutrients is used by plants and other producers to build new organic matter. ...
The Biosphere
... Ecosystem – all living and non-living things in the same area Biome – group of ecosystems with similar climates and communities Biosphere – all biomes put together ...
... Ecosystem – all living and non-living things in the same area Biome – group of ecosystems with similar climates and communities Biosphere – all biomes put together ...
The Nitrogen Cycle
... - acid precipitation caused by sulfur dioxide, SO2, which is produced when fossil fuels are burned. Can make lakes and rivers too acidic for organisms to live in, kill trees, and corrode stone. -ozone layer - found at the top of the stratosphere, the layer of ozone gas that absorbs almost all the Ul ...
... - acid precipitation caused by sulfur dioxide, SO2, which is produced when fossil fuels are burned. Can make lakes and rivers too acidic for organisms to live in, kill trees, and corrode stone. -ozone layer - found at the top of the stratosphere, the layer of ozone gas that absorbs almost all the Ul ...
Energy and Nutrients
... Food chains are linear sequences of feeding relationships Food chains cross-connect as food webs Most energy that enters a food web returns to the environment, mainly as metabolic heat Nutrients are recycled within the food web ...
... Food chains are linear sequences of feeding relationships Food chains cross-connect as food webs Most energy that enters a food web returns to the environment, mainly as metabolic heat Nutrients are recycled within the food web ...
Intro to Energy Flow in Ecosystems
... Trophic Level levels that energy in an ecosystem travels through •# of trophic levels is determined by # of organisms in a food web or food chain ...
... Trophic Level levels that energy in an ecosystem travels through •# of trophic levels is determined by # of organisms in a food web or food chain ...
Name Date Period ______ STUDY GUIDE: ECOLOGY Matching: a
... _____i. Lichen is the name for an organism that is the result of a fungus and algae living closely with one another. The algae provides oxygen and food for the fungus. The fungus provides nutrients and CO2 for the algae. _____ii. Cattle Egrets are birds that forage in fields among cattle or other li ...
... _____i. Lichen is the name for an organism that is the result of a fungus and algae living closely with one another. The algae provides oxygen and food for the fungus. The fungus provides nutrients and CO2 for the algae. _____ii. Cattle Egrets are birds that forage in fields among cattle or other li ...
Name:__________________________ Date: ____________Period:_____ Unit 1 EXAM 9/17/09
... 6. e. Students know a vital part of an ecosystem is the stability of its producers and decomposers. 6. f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an ener ...
... 6. e. Students know a vital part of an ecosystem is the stability of its producers and decomposers. 6. f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an ener ...
Unit 6 Ecology Ecology – How organisms interact with both living
... Carrying capacity – The number of organisms an ecosystem can support. • Determined by available resources and the interactions of organisms. Population interactions occur mostly during competition for food and resources. • Diversity is essential in ecosystems since all populations are linked directl ...
... Carrying capacity – The number of organisms an ecosystem can support. • Determined by available resources and the interactions of organisms. Population interactions occur mostly during competition for food and resources. • Diversity is essential in ecosystems since all populations are linked directl ...
Chapter 10
... chemicals necessary for life • Autotrophs – get energy from the non-living environment (sun) – photosynthesis • Heterotrophs – when one organism eats another, both the organic material and the energy stored in it are passed from one to the other ...
... chemicals necessary for life • Autotrophs – get energy from the non-living environment (sun) – photosynthesis • Heterotrophs – when one organism eats another, both the organic material and the energy stored in it are passed from one to the other ...
PPT1
... NPP is what determines the magnitude of energy that can flow to higher trophic levels NPP limits the amount of biomass at higher trophic levels If you fish at trophic level 1, theoretical maximum harvest = .10*NPP If you fish at trophic level 2, theoretical maximum harvest = .10*.10*NPP ...
... NPP is what determines the magnitude of energy that can flow to higher trophic levels NPP limits the amount of biomass at higher trophic levels If you fish at trophic level 1, theoretical maximum harvest = .10*NPP If you fish at trophic level 2, theoretical maximum harvest = .10*.10*NPP ...
File - Mrs. LeCompte
... You need to be able to analyze a food chain or food web and determine how changes in one population will affect the others. Ecological Pyramids Food chains are typically limited to the tertiary consumer level. This is due to the loss of energy between trophic levels. ...
... You need to be able to analyze a food chain or food web and determine how changes in one population will affect the others. Ecological Pyramids Food chains are typically limited to the tertiary consumer level. This is due to the loss of energy between trophic levels. ...
What do Ecologists Study?
... – Biotic (living) vs. abiotic (non-living) factors (ex., floods, droughts) ...
... – Biotic (living) vs. abiotic (non-living) factors (ex., floods, droughts) ...
ecology good - Appoquinimink High School
... Trophic Levels • Each link in a food chain is known as a trophic level. • Trophic levels represent a feeding step in the transfer of energy and matter in an ecosystem. ...
... Trophic Levels • Each link in a food chain is known as a trophic level. • Trophic levels represent a feeding step in the transfer of energy and matter in an ecosystem. ...
Intro to Ecology & Energy Flow Notes
... Mutualism is a symbiotic relationship in which both organism benefits from the interaction. The relationship between a desert bat and a giant saguaro cactus is considered mutualistic because the cactus provides food for the bat and because – A the cactus needs protect the bat from predators B the ba ...
... Mutualism is a symbiotic relationship in which both organism benefits from the interaction. The relationship between a desert bat and a giant saguaro cactus is considered mutualistic because the cactus provides food for the bat and because – A the cactus needs protect the bat from predators B the ba ...
Lisa Lanza - Reocities
... the other page. identify producers, herbivores etc. Food web in an Antarctic ecosystem: Transparencies are listed before the The theme for this chapter is Yellowstone article. interconnectedness; I used the overhead to talk about how a change in the population of one species can affect many other sp ...
... the other page. identify producers, herbivores etc. Food web in an Antarctic ecosystem: Transparencies are listed before the The theme for this chapter is Yellowstone article. interconnectedness; I used the overhead to talk about how a change in the population of one species can affect many other sp ...
Ecology Notes
... 1. _________________- consumer that eats only plants Ex: grasshoppers, mice, rabbits, deer, beavers, moose, cows, sheep, goats and groundhogs 2. _________________- consumer that eats only other animals. Ex: Foxes, frogs, snakes, hawks, and spiders. 3. _________________– consumer that eat the remains ...
... 1. _________________- consumer that eats only plants Ex: grasshoppers, mice, rabbits, deer, beavers, moose, cows, sheep, goats and groundhogs 2. _________________- consumer that eats only other animals. Ex: Foxes, frogs, snakes, hawks, and spiders. 3. _________________– consumer that eat the remains ...
Lab 2 Food Chains, Food Webs, and Ecosystems
... autotrophic, that is they can convert sunlight into useable energy via photosynthesis. These organisms are mainly plants, but also include members of other groups like Monera (cyanobacteria) and the Protista (kelps, Volvox, and autotrophic euglena). These organisms form the base for any food chain o ...
... autotrophic, that is they can convert sunlight into useable energy via photosynthesis. These organisms are mainly plants, but also include members of other groups like Monera (cyanobacteria) and the Protista (kelps, Volvox, and autotrophic euglena). These organisms form the base for any food chain o ...
BDOL Interactive Chalkboard - Davis
... use to show how matter and energy move through an ecosystem. ...
... use to show how matter and energy move through an ecosystem. ...
Food web
A food web (or food cycle) is the natural interconnection of food chains and generally a graphical representation (usually an image) of what-eats-what in an ecological community. Another name for food web is a consumer-resource system. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the autotrophs, and 2) the heterotrophs. To maintain their bodies, grow, develop, and to reproduce, autotrophs produce organic matter from inorganic substances, including both minerals and gases such as carbon dioxide. These chemical reactions require energy, which mainly comes from the sun and largely by photosynthesis, although a very small amount comes from hydrothermal vents and hot springs. A gradient exists between trophic levels running from complete autotrophs that obtain their sole source of carbon from the atmosphere, to mixotrophs (such as carnivorous plants) that are autotrophic organisms that partially obtain organic matter from sources other than the atmosphere, and complete heterotrophs that must feed to obtain organic matter. The linkages in a food web illustrate the feeding pathways, such as where heterotrophs obtain organic matter by feeding on autotrophs and other heterotrophs. The food web is a simplified illustration of the various methods of feeding that links an ecosystem into a unified system of exchange. There are different kinds of feeding relations that can be roughly divided into herbivory, carnivory, scavenging and parasitism. Some of the organic matter eaten by heterotrophs, such as sugars, provides energy. Autotrophs and heterotrophs come in all sizes, from microscopic to many tonnes - from cyanobacteria to giant redwoods, and from viruses and bdellovibrio to blue whales.Charles Elton pioneered the concept of food cycles, food chains, and food size in his classical 1927 book ""Animal Ecology""; Elton's 'food cycle' was replaced by 'food web' in a subsequent ecological text. Elton organized species into functional groups, which was the basis for Raymond Lindeman's classic and landmark paper in 1942 on trophic dynamics. Lindeman emphasized the important role of decomposer organisms in a trophic system of classification. The notion of a food web has a historical foothold in the writings of Charles Darwin and his terminology, including an ""entangled bank"", ""web of life"", ""web of complex relations"", and in reference to the decomposition actions of earthworms he talked about ""the continued movement of the particles of earth"". Even earlier, in 1768 John Bruckner described nature as ""one continued web of life"".Food webs are limited representations of real ecosystems as they necessarily aggregate many species into trophic species, which are functional groups of species that have the same predators and prey in a food web. Ecologists use these simplifications in quantitative (or mathematical) models of trophic or consumer-resource systems dynamics. Using these models they can measure and test for generalized patterns in the structure of real food web networks. Ecologists have identified non-random properties in the topographic structure of food webs. Published examples that are used in meta analysis are of variable quality with omissions. However, the number of empirical studies on community webs is on the rise and the mathematical treatment of food webs using network theory had identified patterns that are common to all. Scaling laws, for example, predict a relationship between the topology of food web predator-prey linkages and levels of species richness.