Adaptations and interactions between organisms

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Animal Adaptations

What is ecology?

• The study of the interactions that take place among organisms and their environment

Adaptations

How do adaptations help animals survive in their environment?

• An adaptation is a body part or behavior that helps an animal survive in a particular environment.

• Adaptation can help an animal breathe, catch food, or hide.

• All animals are adapted to live in certain habitats.

• Animals that cannot adapt will die out.

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

We can separate adaptations categories: into two

AND

Physical

Behavioral

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical

Behavioral

© A. Weinberg

Physical adaptations are body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

• Physical adaptations help an animal survive in its environment.

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Behavioral

Physical adaptation

Camouflage (use of color in a surrounding)

The chameleon can change its c o l o r to match its surroundings. Can you do that?

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Behavioral

Physical adaptation

Mimicry

(looking or sounding like another living organism)

The Viceroy butterfly uses mimicry to look like the

Monarch butterfly. Can you tell them apart?

I’m the

Viceroy!

Not poisonous

Poisonous

I’m the

Monarch!

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Mimicry

(looking or sounding like another living organism)

Behavioral

Physical adaptation

Chemical defenses

(like venom, ink, sprays)

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Mimicry

(looking or sounding like another living organism)

Chemical defenses

(like venom, ink, sprays)

Behavioral

Physical adaptations

Body coverings & parts (claws, beaks, feet, armor plates, skulls, teeth)

The elephant’s trunk is a physical adaptation that helps it to clean itself, eat, drink, and to pick things up.

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Mimicry

(looking or sounding like another living organism)

Chemical defenses

(like venom, ink, sprays)

Body coverings

& parts

(claws, beaks, feet, armor plates, skulls, teeth)

Behavioral

Behavioral Adaptations allow animals to respond to life needs.

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Mimicry

(looking or sounding like another living organism)

Chemical defenses

(like venom, ink, sprays)

Body coverings

& parts

(claws, beaks, feet, armor plates, skulls, teeth)

Behavioral allow animals to respond to life needs.

Behavioral Adaptations are animals’ actions.

Remember that Physical

Adaptations are body structures .

Each organism has unique methods of adapting to its environment by means of different actions.

body part or behavior that helps an animal survive in a particular environment.

help an animal breathe, catch food, or hide.

adapted to live in certain habitats.

Physical body structures that allow an animal to find and consume food, defend itself, and to reproduce its species.

help an animal survive in its environment

Camouflage use of color in a surrounding

Mimicry

(looking or sounding like another living organism)

Chemical defenses

(like venom, ink, sprays)

Body coverings

& parts

(claws, beaks, feet, armor plates, skulls, teeth)

Behavioral allow animals to respond to life needs.

animals’ actions

Homeostasis

• Maintenance of constant internal conditions in the face of a varying external environment.

• Examples:

– The thickening of fur in winter.

– The seeking of shade in heat.

– The production of more red blood cells at high altitude.

Maintenance of constant internal conditions in the face of a varying external environment

Endotherms vs.

Ectotherms

Endotherms

Ectotherms

Maintenance of constant internal conditions in the face of a varying external environment

Endotherms

• Endotherms are animals that warm their bodies mainly from their own metabolism.

– We call these animals warm-blooded.

– Maintain a constant body temperature regardless of changes in the surrounding temperature

Endotherms animals that warm their bodies mainly from their own metabolism

Warmblooded

Body temp the same regardless of weather

Ectotherms

Maintenance of constant internal conditions in the face of a varying external environment

How do endothems adapt?

Fat layers, fur, and feathers insulate the body and retain heat.

• Shivering muscles contract to increase body heat.

• Some animals hibernate.

Hibernation enables animals to survive long periods of cold and lack of food.

• Canines, like this Brittany, use panting as a means of temperature regulation.

Endotherms animals that warm their bodies mainly from their own metabolism

How do endothems adapt?

Warmblooded

Body temp the same regardless of weather

Fat layers, fur, and feathers

Shivering

Muscles

Hibernation

Ectotherms

Maintenance of constant internal conditions in the face of a varying external environment

Ectotherms

• Ectotherms are animals that warm their bodies by absorbing heat from their surroundings.

– We call these animals cold-blooded

– Body temperature fluctuates with changes in the surrounding temperature.

Ectotherms

Maintenance of constant internal conditions in the face of a varying external environment

Endotherms animals that warm their bodies mainly from their own metabolism

How do endothems adapt?

Warmblooded

Body temp the same regardless of weather

Fat layers, fur, and feathers

Shivering

Muscles animals that warm their bodies by absorbing heat from their surroundings

Coldblooded

Body Temp changes with weather

Hibernation

How do ectotherms adapt?

• Most marine fish and

invertebrates, however, live in water that stays the same temperature.

• When the weather is warm, they become active. They slow down when the temperature drops.

– To warm up, reptiles find sunny places, and stretch out for maximum exposure. If it gets too warm, lizards alternate between sun and shade.

– Amphibians warm up by moving into the sun or diving into warm water. They cool off by entering the shade.

Ectotherms

Maintenance of constant internal conditions in the face of a varying external environment

Endotherms animals that warm their bodies mainly from their own metabolism

How do endothems adapt?

Warmblooded

Body temp the same regardless of weather

Fat layers, fur, and feathers

Shivering

Muscles animals that warm their bodies by absorbing heat from their surroundings

Coldblooded

Body Temp changes with weather

Hibernation

How do ectotherms adapt?

warm up by moving into the sun or diving into warm water weather is warm, they become active.

They slow down when the temperature drops.

cool off by entering the shade

Example of Adaptation

• The shape of an animal’s teeth is related to its diet.

– Herbivores, such as deer, have many molars for chewing tough grass and plants.

– Carnivores, such as lions, have sharp canines to kill and tear meat.

Who experiences adaptations?

• All species have experienced adaptation and will continue to slowly adapt as the next generations are born.

• We will identify certain species from each of these groups and the reasons for their success:

– Mammals

– Birds

– Reptiles

– Amphibians

Mammals

• Endothermic or warm-blooded

• All have some type of

“hair”

– Some are very specialized, such as white polar bear fur

• Method of locomotion

• Care for young

Birds

• Leg Length

– Roseate Spoonbill

(top right)

• Foot Webbing

– Laughing Gull (top left)

• Beak Shape

– Long Billed Curlew

(bottom)

Reptiles

• Ectothermic or cold- blooded

• Scales

• Some undergo hibernation and estivation

• Lay eggs on land

• Leg structure and position

Amphibians

• Ectothermic

• Lay eggs in water

• Partially of fully webbed feet

• Have lungs or can absorb oxygen through their skin

Animal Defense

• Some animals use these methods of defense to protect themselves:

– Camouflage

• Snake

– Mimicry

• Mexican Milk Snake

– Bright colors

• Skunk and Poison Arrow

Frog

– “Hair” projections

• Hedgehog quills

• Deer Antlers

Adaptation Applications: Lions

• Why are the eyes of a lion set in front of the head rather than on the sides?

• Answer: Eyes in front of the head allow for depth perception and ability to judge distances when hunting.

Adaptation Applications: Lions

• What is the purpose of the mane on a male lion? What is the reason for the lion’s color?

• A thick mane helps the male to appear larger and serves as protection for the throat. The tawny brown coat color camouflages the animal and young among vegetation.

Adaptation Applications: Giraffe

• Why are giraffes able to go for long periods of time without water?

• Answer: Giraffes drink water when available, but can go weeks without it. They rely on morning dew and the water content of their food.

Adaptation Applications: Giraffe

• How are their long necks adapted to their lifestyle?

• Answer: This extra length is thought to have evolved to help the giraffe spot predators and other giraffes in the distance.

Interestingly, giraffes and humans have the same number of vertebrate in their necks.

Adaptation Applications: Zebras

• How do zebras defend themselves?

• Capable of running up to

40 mph. Zebras defend themselves by kicking and biting. Coloration also plays a role in evading predators, although theories have not reached an agreement.

Resources

• This PowerPoint is partially adapted from Ms.

Weinberg. The original PowerPoint can be viewed at

– http://www.quia.com/files/quia/users/amiew/

Animal-Adaptations-PPT

• It is also partially adapted from an animal adaptation powerpoint created by City of Corpus

Christi Museum of Science and History the original can be viewed at

– http:// www.ccmuseumedres.com/Animal%20Ad aptations.ppt

• http://science.jrank.org/pages/6750/Temperature

-Regulation-Internally-heated-animals.html

• http://science.jrank.org/pages/6749/Temperature

-Regulation-Externally-heated-animals.html

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