Transcript Relationships in Ecosystems

WARM UP 9/10… Name the type of
SYMBIOSIS
1. Fleas feed on the blood of the dogs
The dog is physically weakened by the loss of
blood. What type of symbiosis is this?
2. Remoras “hitch a ride” on sharks by attaching
themselves. They feed on the scraps of the shark’s
meal. What type of symbiosis is this?
3. Algae receive a place to live through their
relationship with coral. The coral receives the extra
food that the algae produce from photosynthesis.
What type of symbiosis is this?
Relationships in Ecosystems
Populations
• All of the same species in an ecosystem
www.intrasystems.gr
www.nkf-mt.org.uk
Competition
• All living things compete for
– Food
– Space
• Competition limits population growth
www.opim.wharton.upenn.edu
Limiting Factors
• Anything that restricts or controls the
number of individuals in a population
www.bahamascommerce.com
Carrying Capacity
• The largest number of individuals of one
species an ecosystem can support
www.wwt.org.uk
Symbiosis
• Any close relationship between species
en.wikipedia.org
Mutualism
• A relationship in which both species benefit
Pollination
www.biology.clc.uc
.edu
Cleaner fish
www.orn.mpg.de
Lichens: algae + fungus
www4.tpgi.com.au
Commensalism
• A relationship in which one species
benefits and the other is neither helped
nor harmed
Shark & remora
Barnacles on whale
www.cbu.edu
www.community.webshots.com
Parasitism
• A relationship in which one organisms
benefits and the other is harmed
Tick
www.oznet.ksu.edu
Mistletoe
www.wcosf.org
Predator - Prey
• Predators are consumers that capture and
eat other consumers, called prey
http://www.uga.edu
Cooperation
• Organisms working together toward a
common end or purpose
http://forger.ca/
http://special.newsro
om.msu.edu
Symbiosis/Adaptations
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Choose 1, 2 or 3:
Option # 1: Invasive Species
Your job is to research an invasive species of your choice and find the following
information: its native ecosystem, its foreign ecosystem, and its effects on the
environment. Include a 1 page description and illustration.
Option # 2: Adaptations
Choose an animal or plant species that adapts to its environment in a unique way
such as camofluage or Mimicry. Write a 1 page description and illustration.
Option # 3: Symbiosis
Research an animal or plant that participates in a form of symbiosis and write a 1
page description with illustration.