Ecosystems and communities 4.3 – 4.5

Slides:



Advertisements
Similar presentations
Communities, Biomes, and Ecosystems
Advertisements

CHAPTER 3 Communities and Biomes
Ecology week 2. Community Interactions  Ecosystems are influenced by a combination of biological and physical factors.  Biological influences are called.
Updated May 2006Created by C. Ippolito May 2006 Chapter 26 Interrelationships Pages
Day 3 Topic 2 – Ecosystems.
Communities and Biomes
Chapter 4 Ecosystems and Communities
Lesson Overview 4.5 Aquatic Ecosystems.
Communities, Biomes, and Ecosystems
Objectives Chapter 21 Section 2 Aquatic Ecosystems
CHAPTER 3 Communities and Biomes
Chapter 3 Communities, Biomes and Ecosystems
Compare and Contrast What are some ways in which life in an aphotic zone might differ from life in a photic zone Apply Concepts What is a wetland and.
Lesson Overview 4.5 Aquatic Ecosystems.
Lesson Overview 4.5 Aquatic Ecosystems.
Vocabulary Review Ch 21 Ecosystems. A large region characterized by a specific type of climate and certain types of plant and animal communities Biome.
 What is ecology?  Study of interactions between organisms and their environment.  The environment includes both biotic and abiotic factors.  Biotic.
Aquatic Ecosystems Determining factors:
Ecosystems and Communities
Ecosystems and Communities
Ecosystems and Communities Chapter 20. The role of Climate  What is climate? –Temperature, precipitation, other environmental factors combine to produce.
End Show Slide 1 of 39 Copyright Pearson Prentice Hall biology.
Warm-up Compare the answers you have on your Planet Earth worksheets with others at your table.
Biomes of the World.
Biomes and Aquatic Ecosystems
Topic 2 Aquatic Ecosystems
 Temperature  Water depth  Flow  Amount of dissolved nutrients.
Earth’s Biomes Chapter 23 Section 4.
ECOSYSTEMS AND COMMMUNITIES 1. THE ROLE OF CLIMATE OBJECTIVE: 4.1 Identify the cause of climate. Explain how Earth’s temperature range is maintained.
COMMUNITIES AND BIOMES
Ecosystems and Communities Chapter The Role of Climate What is climate? –Weather is temperature, precipitation, other environmental factors –It.
Copyright Pearson Prentice Hall
What Shapes An Ecosystem? Biotic Factors--The characters (All of the organisms in the community) Abiotic Factors--The climate and all of the nonliving.
Ecology Notes September 9, 2015
An Introduction to Ecology and the Biosphere Chapter 52.
An Introduction To Ecology Chapter 52. Ecology – study of interactions between organisms and environment. Consists of abiotic (nonliving; i.e. temperature,
Chapter 21 Table of Contents Section 1 Terrestrial Biomes
Lesson Overview Lesson Overview Aquatic Ecosystems Lesson Overview 4.5 Aquatic Ecosystems.
SUCCESSION & BIOMES Ecosystems & Communities. Succession The sequential change that happens in an ecosystem over time after a disturbance Primary Succession.
CHAPTER 52 An Introduction to Ecology and the Biosphere.
Ecosystems. Ecosystem – all the organisms in an area along with their environment (habitat) - includes biotic (living) and abiotic (nonliving) factors.
Biomes and Aquatic Ecosystems
Aquatic Ecosystems.

Communities & Biomes A community is composed of interacting populations of different species. A biome is a large group of ecosystems that share the same.
Aquatic Ecosystems Chapter
COMMUNITIES AND BIOMES
Lesson Overview 4.5 Aquatic Ecosystems.
Lesson Overview 4.5 Aquatic Ecosystems.
Aquatic Biomes.
4-5 Aquatic Ecosystems Photo Credit: © Belinda Wright/DRK Photo.
Aquatic Ecosystems 4.5.
COMMUNITIES AND BIOMES
Diagram.
Ecological Succession
COMMUNITIES AND BIOMES
Ch 52: Intro to Ecology and the Biosphere
Lesson Overview 4.5 Aquatic Ecosystems.
List the major land biomes.
Lesson Overview 4.5 Aquatic Ecosystems.
Chapter 21 Table of Contents Section 1 Terrestrial Biomes
4.5 Aquatic Ecosystems.
Lesson Overview 4.5 Aquatic Ecosystems.
Communities, Biomes, and Ecosystems
Chapter 3 Communities, Biomes and Ecosystems
Lesson Overview 4.5 Aquatic Ecosystems.
ECOLOGICAL CLASSIFICATION OF AQUATIC BIOME
Ecosystems.
Aquatic Ecosystems Chapter 4.5.
Copyright Pearson Prentice Hall
Presentation transcript:

Ecosystems and communities 4.3 – 4.5 Biology

What is ecological succession? Ecological succession is a series of more-or-less predictable changes that occur in a community over time. Ecosystems change over time, especially after disturbances, as some species die out new species move in. What is ecological succession?

What is the difference between primary and secondary succession? Primary succession begins in an area with no remnants of an older community. The first species that colonizes barren areas are known as pioneer species. What is the difference between primary and secondary succession?

What is the difference between primary and secondary succession? Secondary succession occurs in disturbed areas where remnants of previous ecosystems – soil and even plants – remain. What is the difference between primary and secondary succession?

What is a climax community? Undisturbed succession progresses to a point where it produces a specific and stable community. An example would be “the magical forest”. What is a climax community?

Can all ecosystems recover from extensive human-caused disturbances? Clearing and farming of tropical rainforests can change the microclimate and soil enough to prevent regrowth of the original community. Can all ecosystems recover from extensive human-caused disturbances?

What are biomes and how are they described? Biomes are regional climate communities. They are described in terms of abiotic factors like climate and soil type, and biotic factors like plant and animal life The ten major biomes are tropical rain forests, tropical dry forests, tropical grasslands, desert, temperate grassland, temperate woodland/shrubland, temperate forest, northwestern coniferous forest, boreal forest, and tundra. What are biomes and how are they described?

What are biomes and how are they described? You are responsible for knowing each type of biome, its abiotic factors, and biotic factors. (Pg. 112) What are biomes and how are they described?

What are aquatic ecosystems affected by? Aquatic ecosystems are affected primarily by the water’s depth, temperature, flow, and amount of dissolved nutrients. What are aquatic ecosystems affected by?

What terms are used to describe water depth? The photic zone is the sunlit region near the surface that allows photosynthesis to occur. What terms are used to describe water depth?

What terms are used to describe water depth? The aphotic zone is below the photic zone. This is an area so deep that light cannot reach it. Photosynthesis cannot occur here. What terms are used to describe water depth?

What terms are used to describe water depth? Benthos are aquatic organisms that live on, or in, rocks and sediments on the bottoms of lakes, streams, and oceans. The benthic zone, in shallow water, can be home to algae and other aquatic plants. When the benthic zone is too deep, below the photic zone, chemosynthetic autotrophs are the only primary producers. What terms are used to describe water depth?

What are the three major categories of freshwater ecosystems? Rivers and streams Lakes and ponds Fresh water wetlands What are the three major categories of freshwater ecosystems?

What are the three major categories of freshwater ecosystems? A wetland is an ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year. What are the three major categories of freshwater ecosystems?

What is an estuary and why is it so important? An estuary is a special kind of wetland formed where the river meets the sea. Estuaries contain a mixture of fresh water and salt water and are affected by the rise and fall of ocean tides. They support an astonishing amount of biomass which makes them commercially valuable. They serve as spawning grounds for many ecologically and commercially imported fish and shell fish species. What is an estuary and why is it so important?

How do ecologists classify marine ecosystems? Ecologists typically divide the ocean into zones based on their depth and distance from shore. How do ecologists classify marine ecosystems?

Costal ocean Open ocean