Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Unit 3: Community Ecology

No description
by

Nicole Martin

on 26 October 2016

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Unit 3: Community Ecology

Community
Ecology

Unit 3
BOCW
What are the different ways species within an ecosystem interact?
Essential Question
What are the different types of interactions with an ecosystem, and what factors can harm their balance?
Community Ecology
Study of the interactions between species in communities.
Ecological niches
Species relationships
Symbiosis
Non-native species
Predation
Any interaction between two organisms in which one organism (the
predator
) consumes all or part of another organism (the
prey
).

Herbivore-Plant Interactions
An herbivore grazing on a plant is another example of predation.

Usually, only part of the prey is eaten by the predator.

Aquatic Example
Prey Defenses
Predation usually results in the evolution of defensive adaptations in prey.

Photo Credit: Rhett A. Butler @ mongabay.com

Photo Credit: Rhett A. Butler @ mongabay.com

These can include
:
Chemical defenses
(toxins, poison, acrid sprays)

Behavior
(living in groups, scouts, alarm calls)

Morphological Features
(spines, color, structures that allow you to run fast or detect predators), and other traits
Behavioral Defense
Camouflage
Protective coloration in which an animal resembles its background.

Mimicry
From: National Geographic
When one species imitates another species for protection.
The Monarch is poisonous, the Viceroy is not.
Competition
Interaction between two organisms that are using the same limited resource.
Intraspecific
Interspecific
within the same species
between different species
Competition for FOOD
Bigger & stronger win out.
More attractive win out.
Competition for MATES
Symbiosis
Relationship in which at least one species depends upon the relationship to survive.

There are THREE TYPES!
Mutualism
Both partners benefit from the relationship
(+ / +)
Commensalism
One partner benefits from the relationship; the other partner is not affected
(+ / 0)
Parasitism
One partner benefits from the relationship; the other partner is harmed
(+ / -)
The Cuckoo Bird... an avian parasite
Species Relationship Matchup Practice
Find the matching cards & determine the species relationship!
2
Types of Species
r-selected Species
Many small offspring
Little or no parental care and protection of offspring
Early reproductive age
Most offspring die before reaching reproductive age
Small adults
Adapted to unstable climate and environmental conditions
High population growth rate (r)
Generalist

Cockroaches
The ultimate r-selected species
Appeared 350mya
Can eat almost anything
Can go months without food, water
Can withstand radiation
10 million offspring per year
Carry viruses
k-selected Species
Fewer, larger offspring
High parental care and protection of offspring
Later reproductive age
Most offspring survive to reproductive age
Adapted to stable climate and environmental conditions
Larger adults
Lower population growth rate (r)
Specialists

The Giant Panda
Specialized & Endangered
Feeds exclusively on bamboo
Only 1 cub per year
Picky about mates
Offspring are helpless and require years of care

Poaching & habitat fragmentation are threatening this species!
Exit Ticket
How can the introduction of a NEW species into one of these ecosystems disrupt the community dynamics?
Full transcript