Matter and Energy in the Ecosystem
... Decomposers: bacteria and fungi that consume the bodies of dead plants and animals or other organic waste. Recycle nutrients back into environment. ...
... Decomposers: bacteria and fungi that consume the bodies of dead plants and animals or other organic waste. Recycle nutrients back into environment. ...
Community Ecology
... v. greater environmental constancy leads to greater web connectance 3. Do predators regulate prey or vice versa? A. HSS - an explanation for "why the world is green" i. criticisms - Murdoch, Ehrlich and Birch ...
... v. greater environmental constancy leads to greater web connectance 3. Do predators regulate prey or vice versa? A. HSS - an explanation for "why the world is green" i. criticisms - Murdoch, Ehrlich and Birch ...
Ch. 13 Notes-Sections 1 to 4
... Decomposers are detritivores that break down organic matter into simpler compounds. ...
... Decomposers are detritivores that break down organic matter into simpler compounds. ...
Lesson 5.3 Ecological Communities
... the mass of living tissue it contains. • In general, there are more organisms and greater biomass at lower trophic levels than at higher ones. ...
... the mass of living tissue it contains. • In general, there are more organisms and greater biomass at lower trophic levels than at higher ones. ...
Midterm Practice Questions
... 3. Life on Earth depends on interaction of gravity and a. One-way flow of energy b. Cycling of energy c. cycling of matter d. a and c ...
... 3. Life on Earth depends on interaction of gravity and a. One-way flow of energy b. Cycling of energy c. cycling of matter d. a and c ...
File
... Population-a group of organisms of one species living in the same place at the same time that interbreed and compete with each other for resources (ex. food, mates, shelter) ...
... Population-a group of organisms of one species living in the same place at the same time that interbreed and compete with each other for resources (ex. food, mates, shelter) ...
EOCT STUDY GUIDE: ECOLOGY
... 32. Around hot water vents deep in the ocean, live specialized communities. Bacteria turn hydrogen sulfide into sugars by a chemical process. The bacteria then provide food to other life forms, as shown in the diagram. Compared to food chains on the land, the bacteria fill the same role asa. Hawks b ...
... 32. Around hot water vents deep in the ocean, live specialized communities. Bacteria turn hydrogen sulfide into sugars by a chemical process. The bacteria then provide food to other life forms, as shown in the diagram. Compared to food chains on the land, the bacteria fill the same role asa. Hawks b ...
Energy Flow in Ecosystems
... Food chains are usually short because as the energy is passed along the chain each organism uses some of it. Also, at every level some of the initial energy (from the sun) is lost to the chain. It is lost through waste, death and the production of heat. So the further along the chain you go, the les ...
... Food chains are usually short because as the energy is passed along the chain each organism uses some of it. Also, at every level some of the initial energy (from the sun) is lost to the chain. It is lost through waste, death and the production of heat. So the further along the chain you go, the les ...
Ecology - Port Washington School District
... that interact and inhabit the same environment. – A change in one population in a community will usually change and affect the other populations ...
... that interact and inhabit the same environment. – A change in one population in a community will usually change and affect the other populations ...
Ecology
... Food webs show the complex interactions within an ecosystem. Each step in a food chain or web is called a trophic level. Producers make up the first step, consumers make up the higher levels. ...
... Food webs show the complex interactions within an ecosystem. Each step in a food chain or web is called a trophic level. Producers make up the first step, consumers make up the higher levels. ...
Ecosystems Vocabulary Study Guide
... 1. Ecosystem: ALL the living and non-living things that exist and interact in an environment 2. Organism: a living thing that is made up of several parts that work together as a whole 3. Habitat: a place where an organism lives 4. Community: all the organisms living in a place 5. Migration: to move ...
... 1. Ecosystem: ALL the living and non-living things that exist and interact in an environment 2. Organism: a living thing that is made up of several parts that work together as a whole 3. Habitat: a place where an organism lives 4. Community: all the organisms living in a place 5. Migration: to move ...
Fall Ecology Unit 1
... 13.Briefly describe the carbon cycle, including all major sources from which CO2 enters the atmosphere and sources from which CO2 is pulled out of the atmosphere. 14.Why are phosphorous and nitrogen important in terrestrial and aquatic systems? 15.What is the major source of energy for life on earth ...
... 13.Briefly describe the carbon cycle, including all major sources from which CO2 enters the atmosphere and sources from which CO2 is pulled out of the atmosphere. 14.Why are phosphorous and nitrogen important in terrestrial and aquatic systems? 15.What is the major source of energy for life on earth ...
AFTER READING 4-2 REVIEW
... – Orcas and salmon – enough to support Orcas? – Humans – enough food to support us? – What if organism(s) are removed? Predictions… – Easier than reading lots of papers (visual) ...
... – Orcas and salmon – enough to support Orcas? – Humans – enough food to support us? – What if organism(s) are removed? Predictions… – Easier than reading lots of papers (visual) ...
ECOLOGY
... – Include all animals, most protists, all fungi, and many bacteria – Types include herbivores (plant eaters), carnivores (meat eaters), omnivores (plant and animal eaters), and detritivores (eat dead plants, animals, and animal waste; also called decomposers) ...
... – Include all animals, most protists, all fungi, and many bacteria – Types include herbivores (plant eaters), carnivores (meat eaters), omnivores (plant and animal eaters), and detritivores (eat dead plants, animals, and animal waste; also called decomposers) ...
coral reef notes
... All living things require energy to carry out life functions such as growth, movement, and reproduction. For nearly all ecosystems—diverse collections of species that interact with each other and their physical environment—the major source of energy is the sun. The flow of energy tends to follow the ...
... All living things require energy to carry out life functions such as growth, movement, and reproduction. For nearly all ecosystems—diverse collections of species that interact with each other and their physical environment—the major source of energy is the sun. The flow of energy tends to follow the ...
Laura Hunter: Using DNA Barcoding in Food Webs
... Learning objectives: To investigate the technology of DNA barcoding and apply it to the building of a food web of Gray’s Reef. Enduring Understandings for the lesson: • A food chain represents the flow of energy from producers to consumers • Consumers include herbivores, carnivores, decomposers and ...
... Learning objectives: To investigate the technology of DNA barcoding and apply it to the building of a food web of Gray’s Reef. Enduring Understandings for the lesson: • A food chain represents the flow of energy from producers to consumers • Consumers include herbivores, carnivores, decomposers and ...
notes on section 3-2
... ii. Consumers depend on the trophic level below it for energy D. What are Ecological Pyramids? 1. Ecological Pyramid = diagram that shows relative amounts of energy or matter within each trophic level in a food chain/web. i. Three types of Ecological Pyramids: energy, biomass, numbers. 2. Energy pyr ...
... ii. Consumers depend on the trophic level below it for energy D. What are Ecological Pyramids? 1. Ecological Pyramid = diagram that shows relative amounts of energy or matter within each trophic level in a food chain/web. i. Three types of Ecological Pyramids: energy, biomass, numbers. 2. Energy pyr ...
Ecology - One Day Enrichment
... – Herbivores – eat only plants – Carnivores – eat other animals – Omnivores – eat both plants and animals – Detrivores – feed on dead matter – Decomposers – break down organic matter ...
... – Herbivores – eat only plants – Carnivores – eat other animals – Omnivores – eat both plants and animals – Detrivores – feed on dead matter – Decomposers – break down organic matter ...
Ecology PowerPoint Lecture Notes
... Food web - A series of interconnected food chains that demonstrates all of the possible feeding relationships within a community. ...
... Food web - A series of interconnected food chains that demonstrates all of the possible feeding relationships within a community. ...
Eating for Energy
... forest ecosystem. O A FOOD WEB is used by scientists to describe and understand how forest ecosystems function. O Food chain is a linear model and a food web shows multiple branches and interactions. ...
... forest ecosystem. O A FOOD WEB is used by scientists to describe and understand how forest ecosystems function. O Food chain is a linear model and a food web shows multiple branches and interactions. ...
Food webs - mrknyvett
... information about the food (or prey) that each organism eats and the organisms that they are eaten by. You might like to use the article Birds’ role in ecosystems or webbased searches to collect this information. ...
... information about the food (or prey) that each organism eats and the organisms that they are eaten by. You might like to use the article Birds’ role in ecosystems or webbased searches to collect this information. ...
Chapter 3 - Kenton County Schools
... At each trophic level only 10% of the energy taken in by the organism is stored. ...
... At each trophic level only 10% of the energy taken in by the organism is stored. ...
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.