Community Interactions. Community An assemblage of all the populations interacting in an area
|
|
- Meryl Chloe O’Brien’
- 5 years ago
- Views:
Transcription
1 Community Interactions Community An assemblage of all the populations interacting in an area
2 Populations are affected by: Available living space habitat Resource Availability niche Species interactions Symbiosis living together commensalism mutualism parasitism Competition Predation Coevolution
3 Available Living Space Habitat an organism s mailing address the type of place where the individuals normally live
4 Resource Availability Niche an organism s profession (role) in the community
5 Species Interactions Symbiosis Living together for at least some part of the life cycle Most interactions are neutral; they have no effect on either species Commensalism Mutualism Parasitism
6 Commensalism One species benefits and has no effect on the other
7 Mutualism Both species benefit Some are obligatory; partners depend upon each other (coevolution) Yucca plants and yucca moth Mycorrhizal fungi and plants Anemone fish and anemone
8 Mutualism Protection
9 photograph Alex Wild 2004
10 Mutualism Birds get food, help plant disperse seeds
11 Mutualism Pollination
12 Yucca and Yucca Moth Example of an obligatory mutualism Each species of yucca is pollinated only by one species of moth Moth larvae can grow only in that one species of yucca
13 Yucca Moth Yucca Plant Obligate Mutualism
14 Mycorrhizae Obligatory mutualism between fungus and plant root Fungus supplies mineral ions to root Root supplies sugars to fungus
15 Parasitism Parasites draw nutrients from hosts live on or in host body Vectors Convey a parasite from host to host Parasitoids Develop inside another species Consume and kill host
16 Protozoan - flagellate Micro Parasites bacteria fungus
17 Macro parasites tick flea
18 Macro parasite lamprey
19 Parasites
20 Parasites as biological controls Some parasites and parasitoids are used as biological controls Adapted to specific host and habitat Good at locating host High population growth rate Offspring disperse
21 Biological Controls Wasp and aphid
22 Social Parasite Brown-headed cowbird
23 Competition Interspecific: among different species Exploitative competition Interference competition Intraspecific: between members of the same species Intraspecific competition is most intense Territoriality Allelopathy Some species have eliminated ways of avoiding competition: Resource partitioning
24 Interspecific Competition
25 Intraspecific Competition
26 Intraspecific Competition Territoriality
27 Intraspecific Competition Allelopathy (sibling harming) Eucalyptus oils harm young saplings of same species. Can also affect other species
28 Forms of Competition Exploitative competition Species have equal access to resource; compete to exploit resource Interference competition One species prevents another from using resource usually through aggressive behavior
29 Interference Competition
30 Competitive Exclusion Principle When two species compete for identical resources, one will be more successful and will eventually eliminate the other
31 Gause s Experiment Species grown together Paramecium caudatum Paramecium aurelia
32 Resource Partitioning Apparent competitors may have slightly different niches May use resources in a different way or time Minimizes competition and allows coexistence
33
34
35 Predation Predators animals that feed on other living organisms free-living do not reside on their prey Carnivores and omnivores
36 Predator Prey Relationships: Canada Lynx and the Showshoe Hare Species are limited by the number of available prey In some cases predators limit a prey species
37 Coevolution Two or more species exert selection pressure on each other Prey defenses evolve Predator responses to prey evolve
38 Prey Defenses Camouflage Warning coloration Mimicry
39 Camouflage
40 Warning Coloration & Mimicry
41 Predator Responses Predators counter prey defenses with new adaptations stealth camouflage avoidance of chemical repellents
42 Predator Responses
43 Community Dynamics Factors affecting changes in community structure Intermediate Disturbance Hypothesis Community Instability (Alternate stable states) Keystone Species Exotic (introduced species) Ecological Succession Primary Secondary
44 Species Diversity Species diversity Variety, Abundance of Species in a Particular Place Species richness: The number of different species in a given area Species evenness: Comparative number of individuals
45 Variations in Species Richness and Species Evenness Higher richness and evenness lower richness and evenness Fig. 4-12, p. 93
46 Species Diversity: Diversity varies with geographical location The most species-rich communities Tropical rain forests Coral reefs Ocean bottom zone Large tropical lakes
47 # seaweed species log # seaweed species Species are not assembled randomly in nature. Physical stress Species richness Nov-75 May-76 Oct-76 May-77 Low Mid High Disturbance level (Sousa 1979 Ecology) Herbivory Herbivore Density (snails/m 2 ) (Lubchenco 1978 Am Nat) Nitrogen availability log ammonium loading (micromol/l/h) (Bracken & Nielsen 2004 Ecology)
48 Intermediate Disturbance Hypothesis Ecological Community stability is an uneasy balance Areas with moderate levels of disturbance have greater species diversity
49 Community Instability Disturbances can cause a community to change in ways that persist even if the change is reversed. In some cases these are considered alternate stable states
50 Keystone Species A species that has a disproportionately large effect on community structure Removal of a keystone species can cause drastic changes in a community can increase or decrease diversity
51 sea star community 15 species coexist - 1 sea star is removed 8 remain in community
52 Keystone species exert an important regulating effect on other species in a community. Populations are limited by competition for resources Fig Copyright 2002 Pearson Education, Inc., publishing as Benjamin Cummings
53 If Keystone Species are removed, community structure is greatly affected.
54 Copyright 2002 Pearson Education, Inc., publishing as Benjamin Cummings
55 Over time, one array of species is replaced by another Ecological Succession
56 Types of Succession Primary succession: new environments Begins with foundation species Ends with climax community Secondary succession: communities destroyed or displaced May not have foundation species Also ends with climax community
57 Climax Community Stable array of species that does not change over time In a particular habitat, succession produces the same climax community
58 Most communities are disturbed by events like fire, weather, or human activities
59 Marine communities are subject to disturbance by tropical storms. Fig
60 Volcanic Island Succession Foundation Species Climax Community
61 Glacial Succession
62 Primary succession begins in a new or lifeless area where soil has not yet formed. Lake Succession
63 Sand Dune Succession
64 Secondary succession occurs where an existing community has been cleared, but the soil is left intact. Relatively rapid succession Copyright 2002 Pearson Education, Inc., publishing as Benjamin Cummings
65 Secondary Succession: Disturbed Habitats Along Roadsides Abandoned Fields
66 Cyclic Replacement Fire Damage Disease Damage Sudden Oak Death Storm Damage
67 Cyclic Replacement: Fire Climax Chaparral fire adapted plant community
68
69
70 Giant Sequoia High intensity crown fire destroys forest No fire no seedlings, growth of white fir Low intensity allows Giant Sequoia to re-seed Medium intensity kills competing fir trees
71
Community Structure. Community An assemblage of all the populations interacting in an area
Community Structure Community An assemblage of all the populations interacting in an area Community Ecology The ecological community is the set of plant and animal species that occupy an area Questions
More information-The study of the interactions between the different species in an area
Community Ecology -The study of the interactions between the different species in an area Interspecific Interactions -Interaction between different species -May be positive, negative, or neutral and include
More informationCh20_Ecology, community & ecosystems
Community Ecology Populations of different species living in the same place NICHE The sum of all the different use of abiotic resources in the habitat by s given species what the organism does what is
More informationCh 4 Ecosystems and Communities. 4.2 Niches and Community Interactions
Ch 4 Ecosystems and Communities 4.2 Niches and Community Interactions The Niche The conditions in which an organisms lives, and how it interacts with its environment (in the trees, on the ground, inside
More informationOutline. Ecology: Succession and Life Strategies. Interactions within communities of organisms. Key Concepts:
Ecology: Succession and Life Strategies Interactions within communities of organisms u 1. Key concepts Outline u 2. Ecosystems and communities u 3. Competition, Predation, Commensalism, Mutualism, Parasitism
More informationENVE203 Environmental Engineering Ecology (Nov 19, 2012)
ENVE203 Environmental Engineering Ecology (Nov 19, 2012) Elif Soyer Biological Communities COMPETITION Occurs when 2 or more individuals attempt to use an essential common resource such as food, water,
More information1. competitive exclusion => local elimination of one => competitive exclusion principle (Gause and Paramecia)
Chapter 54: Community Ecology A community is defined as an assemblage of species living close enough together for potential interaction. Each member of same community has a particular habitat and niche.
More informationHalf Hollow Hills High School AP Biology
Chapter 53 Community Ecology Essential questions What factors structure a community? What species & how many are present in a community? In what way do the populations interact? What roles do species play
More informationLesson Overview. Niches and Community Interactions. Lesson Overview. 4.2 Niches and Community Interactions
Lesson Overview 4.2 Niches and Community Interactions The Niche What is a niche? A niche is the range of physical and biological conditions in which a species lives and the way the species obtains what
More informationChapter 4 Ecosystems and Living Organisms
Chapter 4 Ecosystems and Living Organisms I. Evolution A. The cumulative genetic changes that occur in a population of organisms over time 1. Current theories proposed by Charles Darwin, a 19 th century
More informationIntroduction interspecific interactions
Introduction There are different interspecific interactions, relationships between the species of a community (what s the definition of a community again?). While you re at it, what s the definition of
More informationCommunity Ecology Feral cat populations can be damaging to ecosystems.
Community Ecology Feral cat populations can be damaging to ecosystems. Why? Photo Credit: http://www.flickr.com/photos/daveograve/4562537127/ Concept of the Community Community = assemblage of populations
More informationChapter 54: Community Ecology
AP Biology Guided Reading Name Chapter 54: Community Ecology Overview 1. What does community ecology explore? Concept 54.1 Community interactions are classified by whether they help, harm, or have no effect
More informationBio112 Home Work Community Structure
Bio112 Home Work Community Structure Multiple Choice Identify the choice that best completes the statement or answers the question. 1. All of the populations of different species that occupy and are adapted
More informationREVIEW OF PHYLOGENY AND EUKARYOTIC ORIGINS (QUIZ MON)
REVIEW OF PHYLOGENY AND EUKARYOTIC ORIGINS (QUIZ MON) Why is biodiversity important? What are phylogeny and systematics? What does it mean for a phylogenetic tree to be rooted? What is a dichotomous key?
More informationChapter 6 Population and Community Ecology. Thursday, October 19, 17
Chapter 6 Population and Community Ecology Module 18 The Abundance and Distribution of After reading this module you should be able to explain how nature exists at several levels of complexity. discuss
More informationECOSYSTEMS AND THEIR LIVING COMMUNITIES
ECOSYSTEMS AND THEIR LIVING COMMUNITIES COMMUNITY Each community is made up of populations of various organisms living in the same location at the same time. community 1 = popln 1 + popln 2 + popln 3 Each
More informationCommunity and Population Ecology Populations & Communities Species Diversity Sustainability and Environmental Change Richness and Sustainability
1 2 3 4 Community and Population Ecology Chapter 6 Populations & Communities Biosphere> ecosystems> communities> populations> individuals A population is all of the individuals of the same species in a
More informationChapter 6 Reading Questions
Chapter 6 Reading Questions 1. Fill in 5 key events in the re-establishment of the New England forest in the Opening Story: 1. Farmers begin leaving 2. 3. 4. 5. 6. 7. Broadleaf forest reestablished 2.
More informationEssential Questions. What factors are most significant in structuring a community?
Community Ecology Essential Questions What factors are most significant in structuring a community? What determines a communities species composition and the relative amount of species present? What is
More informationChapter 54: Community Ecology
Name Period Concept 54.1 Community interactions are classified by whether they help, harm, or have no effect on the species involved. 1. What is a community? List six organisms that would be found in your
More informationChapter 53 Community Ecology
Chapter 53 Community Ecology Key Vocabulary Terms: community, interspecific interaction vs. intraspecific interaction, coevolution, predation, parasitism, herbivore, carnivore, omnivore, camouflage, aposematic
More informationChapter Niches and Community Interactions
Chapter 4 4.2 Niches and Community Interactions Key Questions: 1) What is a niche? 2) How does competition shape communities? 3) How do predation and herbivory shape communites? 4) What are three primary
More informationTolerance. Tolerance. Tolerance 10/22/2010
Section 4.2 Mrs. Michaelsen Tolerance Every species has its own range of tolerance: The ability to survive and reproduce under a range of environmental circumstances. Tolerance Stress can result when an
More informationLesson Overview 4.2 Niches and Community Interactions
THINK ABOUT IT If you ask someone where an organism lives, that person might answer on a coral reef or in the desert. Lesson Overview 4.2 Niches and Community Interactions These answers give the environment
More informationCh.5 Evolution and Community Ecology How do organisms become so well suited to their environment? Evolution and Natural Selection
Ch.5 Evolution and Community Ecology How do organisms become so well suited to their environment? Evolution and Natural Selection Gene: A sequence of DNA that codes for a particular trait Gene pool: All
More informationWeather is the day-to-day condition of Earth s atmosphere.
4.1 Climate Weather and Climate Weather is the day-to-day condition of Earth s atmosphere. Climate refers to average conditions over long periods and is defined by year-after-year patterns of temperature
More informationFive Kingdoms of Life (Earth s Biodiversity)
Five Kingdoms of Life (Earth s Biodiversity) Bacteria Protists Fungus Plants Animals prokaryotic eukaryotic eukaryotic eukaryotic eukaryotic single cell consumer (decomposer) or autotroph producer most
More informationInterspecific Interactions: Symbiosys
Interspecific Interactions: Symbiosys Types of Interspecific Interactions Characteristics of symbiotic relationships Symbiosys is an intimate relationship between members of two or more species When species
More informationAn ecological community 7/12/2012. Consists of all the interacting populations within an ecosystem
Strategies for Success Community Interactions Prepared by Diana Wheat For General Biology 101 Linn-Benton Community College When alarmed, the Least Bittern freezes in place with its bill pointing up, turns
More informationCHAPTER. Evolution and Community Ecology
CHAPTER 5 Evolution and Community Ecology Lesson 5.2 Species Interactions The zebra mussel has completely displaced 20 native mussel species in Lake St. Clair. Lesson 5.2 Species Interactions The Niche
More informationChapter 04 Lecture Outline
Chapter 04 Lecture Outline William P. Cunningham University of Minnesota Mary Ann Cunningham Vassar College Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1
More informationorganism Community Ecology population community ecosystem biosphere
organism Community Ecology population community ecosystem biosphere Community Ecology Community all the organisms that live together in a place interactions Community Ecology study of interactions among
More informationChapter 6 Population and Community Ecology
Chapter 6 Population and Community Ecology Friedland and Relyea Environmental Science for AP, second edition 2015 W.H. Freeman and Company/BFW AP is a trademark registered and/or owned by the College Board,
More informationHonors Biology Ecology Concept List
1. For each pair of terms, explain how the meanings of the terms differ. a. mutualism and commensalism b. parasitism and predation c. species richness and species diversity d. primary succession and secondary
More informationPOPULATIONS and COMMUNITIES
POPULATIONS and COMMUNITIES Ecology is the study of organisms and the nonliving world they inhabit. Central to ecology is the complex set of interactions between organisms, both intraspecific (between
More informationorganism population community ecosystem biosphere Community Ecology AP Biology
organism Community Ecology population community ecosystem biosphere Community Ecology Community all the organisms that live together in a place = interactions Community Ecology To answer: study of interactions
More informationThe factors together:
Biotic Interactions 8.11A DESCRIBE PRODUCER/CONSUMER, PREDATOR/PREY AND PARASITE/HOST RELATIONSHIPS AS THEY OCCUR IN FOOD WEBS WITHIN MARINE, FRESHWATER AND TERRESTRIAL ECOSYSTEMS Biotic These are the
More informationWe share the earth with all of the other creatures; removing any organism from an environment can have many diverse consequences - not always
Ecology We share the earth with all of the other creatures; removing any organism from an environment can have many diverse consequences - not always predictable ones. Ecology is the study of the interactions
More informationEcology - the study of how living things interact with each other and their environment
Ecology Ecology - the study of how living things interact with each other and their environment Biotic Factors - the living parts of a habitat Abiotic Factors - the non-living parts of a habitat examples:
More information14.1 Habitat And Niche
14.1 Habitat And Niche A habitat differs from a niche. Habitat physical area in which an organism lives Niche each species plays a specific role in an ecosystem niche includes the species habitat, feeding
More informationWhat Shapes an Ecosystem Section 4-2
What Shapes an Ecosystem Section 4-2 Biotic and Abiotic Factors Ecosystems are influenced by a combination of biological and physical factors. Biotic factors are the biological influences on an organism.
More information6 TH. Most Species Compete with One Another for Certain Resources. Species Interact in Five Major Ways. Some Species Evolve Ways to Share Resources
Endangered species: Southern Sea Otter MILLER/SPOOLMAN ESSENTIALS OF ECOLOGY 6 TH Chapter 5 Biodiversity, Species Interactions, and Population Control Fig. 5-1a, p. 104 Species Interact in Five Major Ways
More informationSection 4 Professor Donald McFarlane
Craniates Section 4 Professor Donald McFarlane Lecture 20 Ecology 3: Species Interactions. 2 defining characteristics compared to invertebrate chordates 1. Cranium - protective bony or cartilaginous housing
More informationCHAPTER. Evolution and Community Ecology
CHAPTER 5 Evolution and Community Ecology Lesson 5.1 Evolution Scientists have identified and described over 1.5 million species. Millions more have yet to be discovered. Lesson 5.1 Evolution Evolution
More informationCommunity Ecology. PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece
Chapter 54 Community Ecology PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp
More informationorganism population community ecosystem biosphere Community Ecology AP Biology
organism Community Ecology population community ecosystem biosphere Community Ecology Community all the organisms that live together in a place interactions Community Ecology study of interactions among
More informationOverview of Chapter 5
Chapter 5 Ecosystems and Living Organisms Overview of Chapter 5 Evolution Natural Selection Biological Communities Symbiosis Predation & Competition Community Development Succession Evolution The cumulative
More information7. E C. 5 B. 1 D E V E L O P A N D U S E M O D E L S T O E X P L A I N H O W O R G A N I S M S I N T E R A C T I N A C O M P E T I T I V E O R M U T
7. E C. 5 B. 1 D E V E L O P A N D U S E M O D E L S T O E X P L A I N H O W O R G A N I S M S I N T E R A C T I N A C O M P E T I T I V E O R M U T U A L L Y B E N E F I C I A L R E L A T I O N S H I
More information9 Interactions symbioses. Classical Population Biology
1 Ecology Classical Population Biology Mark Mayo Cypress College 2 Terms of Ecological Endearment *habitat place where you live; the physical location has distinguishing physical and chemical features
More information4/17/17. Community Ecology populations interact? Community Ecology. Niche. Community all the organisms that live together in a place interactions
Community Ecology organism populatio n community ecosystem biosphere Community Ecology Community all the organisms that live together in a place interactions To answer: In what way do the Community Ecology
More informationA population is a group of individuals of the same species, living in a shared space at a specific point in time.
A population is a group of individuals of the same species, living in a shared space at a specific point in time. A population size refers to the number of individuals in a population. Increase Decrease
More informationBiodiversity, Species Interactions, and Population Control
Biodiversity, Species Interactions, and Population Control Chapter 5 Section 5-1 HOW DO SPECIES INTERACT? Most species compete with one another for certain resources There are five basic types of interaction
More informationGroups of organisms living close enough together for interactions to occur.
Community ecology: First, let's define a community: Groups of organisms living close enough together for interactions to occur. First we probably want to describe the community a bit, so we look at: Biodiversity
More informationEcosystem change: an example Ecosystem change: an example
5/13/13 Community = An assemblage of populations (species) in a particular area or habitat. Here is part of a community in the grassland of the Serengetti. Trophic downgrading of planet Earth: What escapes
More informationBiology 11 Unit 1: Fundamentals. Lesson 1: Ecology
Biology 11 Unit 1: Fundamentals Lesson 1: Ecology Objectives In this section you will be learning about: ecosystem structure energy flow through an ecosystem photosynthesis and cellular respiration factors
More informationCh. 14 Interactions in Ecosystems
Ch. 14 Interactions in Ecosystems 1 14.1 Habitat vs. Niche Habitat all biotic and abiotic factors where an organism lives WHERE a species lives 2 Ecological Niche All physical, chemical, and biological
More informationPopulations L3.notebook. June 10, Today you will: Jun 8 8:59 AM
Today you will: Jun 8 8:59 AM 1 Population all the members of a species in a locality at a particular time Community all the species in a given area Geographic range the region where an organism is sighted
More informationCommunity ecology. Abdulhafez A Selim, MD, PhD
Community ecology Abdulhafez A Selim, MD, PhD Community ecology is very complex Niches The term 'Niche' was coined by the naturalist Joseph Grinnell in 1917, in his paper "The niche relationships of the
More informationChapter 10. Marine Ecology
Chapter 10 Marine Ecology Copyright 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Marine Ecology Ecology is
More informationUnit 6 Populations Dynamics
Unit 6 Populations Dynamics Define these 26 terms: Commensalism Habitat Herbivory Mutualism Niche Parasitism Predator Prey Resource Partitioning Symbiosis Age structure Population density Population distribution
More informationEcology! the study of the relationship between organisms and their environment
Ecology Notes Ecology! the study of the relationship between organisms and their environment An ecosystem is an organism s surroundings consisting of both living and nonliving things. Abiotic NONliving
More informationWhat Shapes an Ecosystem? Section 4-2 pgs 90-97
What Shapes an Ecosystem? Section 4-2 pgs 90-97 What Shapes an Ecosystem? If you ask an ecologist where a particular organism lives, that person might say the organism lives on a Caribbean coral reef,
More informationOrganisms fill various energy roles in an ecosystem. Organisms can be producers, consumers, or decomposers
Organisms fill various energy roles in an ecosystem An organism s energy role is determined by how it obtains energy and how it interacts with the other living things in its ecosystem Organisms can be
More informationChapter 3. Table of Contents. Section 1 Community Ecology. Section 2 Terrestrial Biomes & Aquatic Ecosystems
Communities, Biomes, and Ecosystems Table of Contents Section 1 Community Ecology Section 2 Terrestrial Biomes & Section 1 Community Ecology Evolution in Communities Interactions Among Species Some interactions
More informationTypes of Consumers. herbivores
no energy = no life Types of Consumers herbivores herbivore us vegetation to swallow or devour Types of Consumers herbivores the organisms that eat plants carnivores carnivore us flesh to swallow or devour
More informationEffect of Species 2 on Species 1 Competition - - Predator-Prey + - Parasite-Host + -
Community Ecology Community - a group of organisms, of different species, living in the same area Community ecology is the study of the interactions between species The presence of one species may affect
More informationCommunity Ecology. Classification of types of interspecific interactions: Effect of Species 1 on Species 2
Community Ecology Community - a group of organisms, of different species, living in the same area Community ecology is the study of the interactions between species The presence of one species may affect
More information8/18/ th Grade Ecology and the Environment. Lesson 1 (Living Things and the Environment) Chapter 1: Populations and Communities
Lesson 1 (Living Things and the Environment) 7 th Grade Ecology and the Environment Chapter 1: Populations and Communities organism a living thing (plant, animal, bacteria, protist, fungi) Different types
More informationPopulation Ecology. Text Readings. Questions to Answer in the Chapter. Chapter Reading:
Population Ecology Text Readings Chapter Reading: Chapter # 26 in Audesirk, Audesirk and Byers: Population Growth and Regulation Pg. # 513-534. Questions to Answer in the Chapter How Does Population Size
More informationEcosystems. 2. Ecosystem
1. Studying our living Planet The biosphere consist of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere. Ecology is the scientific study of interactions
More information3 Types of Interactions
CHAPTER 18 3 Types of Interactions SECTION Interactions of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What determines an area s carrying capacity?
More informationQuestion #01. Feedback on Each Answer Choice. Solution. Ecology Problem Drill 20: Mutualism and Coevolution
Ecology Problem Drill 20: Mutualism and Coevolution Question No. 1 of 10 Question 1. The concept of mutualism focuses on which of the following: Question #01 (A) Interaction between two competing species
More informationWhat is Ecology? The scientific study of interactions among organisms and between organisms in their environment, or surroundings
ECOLOGY What is Ecology? The scientific study of interactions among organisms and between organisms in their environment, or surroundings Organization of the Biosphere Levels of organization Biosphere-
More informationD. Correct! Allelopathy is a form of interference competition in plants. Therefore this answer is correct.
Ecology Problem Drill 18: Competition in Ecology Question No. 1 of 10 Question 1. The concept of allelopathy focuses on which of the following: (A) Carrying capacity (B) Limiting resource (C) Law of the
More informationEcological communities
Community Ecology Questions to Ponder What determines the number of species in a community? How can we classify species according to their roles in a community? How do species interact with one another?
More informationChapter 4 AND 5 Practice
Name: Chapter 4 AND 5 Practice 1. Events that occur in four different ecosystems are shown in the chart below. Which ecosystem would most likely require the most time for ecological succession to restore
More information2 Components of Species Diversity:
2 Components of Species Diversity: Species Richness: of species Species richness seems to increase productivity and because many species are better able to withstand environmental disturbances Species
More informationEcology Notes Part 1. Abiotic NONliving components in an ecosystem. Ecosystem
Ecology Notes Part 1 Ecology the study of the relationship between organisms and their environment Ecosystem an organism s surroundings consisting of both living and nonliving things and how that organism
More informationBiodiversity, Species Interactions, and Population Control. Chapter 5
Biodiversity, Species Interactions, and Population Control Chapter 5 Core Case Study: Southern Sea Otters: Are They Back from the Brink of Extinction? Habitat Hunted: early 1900s Partial recovery Why care
More informationPopulations. ! Population: a group of organisms of the same species that are living within a certain area
Population Dynamics Populations! Population: a group of organisms of the same species that are living within a certain area Species: a group of organisms that are able to reproduce and produce fertile
More informationEvolution and Community Ecology
CHAPTER 5 Evolution and Community Ecology Black and White, and Spread All Over Zebra mussels and quagga mussels were accidentally introduced into Lake St. Clair in the late 1980s. They have since spread
More informationEcology. How the World Works
Ecology How the World Works Ecology is the study of interactions between living organisms and other living organisms and non living resources that they interact with. Levels of Organization Organism- a
More informationChapter 22: Descent with Modification
NAME DATE Chapter 22: Descent with Modification 1. What was the significance of the publishing of Charles Darwin s book, On the Origin of Species by Means of Natural Selection? 2. Explain the two major
More informationResources. Visual Concepts. Chapter Presentation. Copyright by Holt, Rinehart and Winston. All rights reserved.
Chapter Presentation Visual Concepts Transparencies Standardized Test Prep Biological Table of Contents Section 1 How Organisms Interact in Section 2 How Competition Shapes Section 1 How Organisms Interact
More informationChapter 8 Understanding Populations
Chapter 8 Understanding Populations Section 2: How Species Interact with Each Other Key Terms: Niche Competition Predation Parasitism Mutualism Commensalism Symbiosis How Species Interact with Each Other
More informationEcology. Bio Sphere. Feeding Relationships
Ecology Bio Sphere Feeding Relationships with a whole lot of other creatures Ecology Putting it all together study of interactions between creatures & their environment, because Everything is connected
More informationChapter Community Ecology
Studying organisms in their environment organism population community ecosystem biosphere Chapter 56-57 Community Ecology organism population community ecosystem biosphere Community Ecology Community all
More informationCHAPTER 14. Interactions in Ecosystems: Day One
CHAPTER 14 Interactions in Ecosystems: Day One Habitat versus Niche Review! What is a habitat? All of the biotic and abiotic factors in the area where an organism lives. Examples: grass, trees, and watering
More informationLecture 6. Communities and Ecosystems. Lecture Biological Communities
Lecture 6 Communities and Ecosystems Lecture 6 1. Biological Communities Ecological Niche Species Interactions Keystone Species Community Development 2. Ecosystems Terrestrial Aquatic 1 Biological Communities
More information14.1. KEY CONCEPT Every organism has a habitat and a niche. 38 Reinforcement Unit 5 Resource Book
14.1 HABITAT AND NICHE KEY CONCEPT Every organism has a habitat and a niche. A habitat is all of the living and nonliving factors in the area where an organism lives. For example, the habitat of a frog
More informationEcology - Defined. Introduction. scientific study. interaction of plants and animals and their interrelationships with the physical environment
Ecology - Defined Introduction scientific study interaction of plants and animals and their interrelationships with the physical environment Ecology - Levels of Organization Abiotic factors (non-living
More informationDistribution Limits. Define and give examples Abiotic factors. Biotic factors
ECOLOGY Distribution Limits Define and give examples Abiotic factors ex. wind, rocks, temperature, climate, water, elevation, light ----- NON-LIVING Biotic factors LIVING - ex. pathogens, predators, parasites,
More information5 th Grade Ecosystems Mini Assessment Name # Date. Name # Date
An ecosystem is a community of organisms and their interaction with their environment. (abiotic, biotic, niche, habitat, population, community)- 1. Which effect does a decrease in sunlight have on a pond
More informationWhat standard are we focusing on today?
What standard are we focusing on today? Standard H.B.6 The student will demonstrate an understanding that ecosystems are complex, interactive systems that include both biological communities and physical
More informationCh 6. Species Interactions and Community Ecology. Part 1: Foundations of Environmental Science
Ch 6 Species Interactions and Community Ecology Part 1: Foundations of Environmental Science PowerPoint Slides prepared by Jay Withgott and Heidi Marcum Copyright 2006 Pearson Education, Inc., publishing
More informationLevels of Organization in Ecosystems. Ecologists organize ecosystems into three major levels. These levels are: population, community, and ecosystem.
Levels of Organization in Ecosystems Ecologists organize ecosystems into three major levels. These levels are: population, community, and ecosystem. Population A population is a group of individuals of
More informationBiology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall
Biology 1 of 39 4-2 What Shapes an Ecosystem? 2 of 39 Biotic and Abiotic Factors Biotic and Abiotic Factors Ecosystems are influenced by a combination of biological and physical factors. Biotic biological
More informationEcology +Biology. Baker-2015
Ecology +Biology Baker-2015 Ecology is the scientific study of interactions among organisms and between organisms and their physical environment. Eco meaning home, and ology meaning the study of. Thus
More informationUnderstanding Populations Section 1. Chapter 8 Understanding Populations Section1, How Populations Change in Size DAY ONE
Chapter 8 Understanding Populations Section1, How Populations Change in Size DAY ONE What Is a Population? A population is a group of organisms of the same species that live in a specific geographical
More information