NAVIGATION.

Slides:

Advertisements

Similar presentations

Navigation Migration & Homing both involve timing (when to move) and navigation (direction)

Advertisements

Choose a category. You will be given the answer. You must give the correct question. Click to begin.

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc. Review 1)What is the unit for speed (velocity)? 2)What is the unit for.

How Sound Travels Sound is a mechanical wave It moves by vibrating particles in: –Solids –Liquids –Gases Sound can not travel in a vacuum (empty space)!!!

IP Frequency and pitch © Oxford University Press 2011 Frequency and pitch.

Echolocation and Sonar

Measuring Distance with Sound Waves. You are driving and need to determine the distance between your car and the car in front of you. Come up with a way.

Animal responses to the abiotic environment. Biological orientation responses Behaviour by which animal positions self in relation to surroundings Taxes.

A submarine travelling at a speed of 10ms -1 “pings” an underwater sonar detector which is directly inline with the submarine. The broadcast frequency.

Biology 272a: Comparative Animal Physiology Animal Navigation.

Riley Pennington.  Infrasound  Ultrasound  Refraction,Diffraction & Reflection  Websites used.

Animal Communications! By : Tiffany Kapusta.

Homing and Migration Year

Chapter 16.5: Using Sound Pg

Chapter #12 Sound and Light.

Ultrasound Infrasound From the Giraffe Infrasound Bats use ultrasound for navigation. Whales use infrasound. Dolphins use ultrasound.

By: Lisa Runt. What is Sonar? A technique that uses sound to navigate, communicate with or detect other vessels. These sonar waves are very high in frequency.

Sound. Sound Waves Sound is a disturbance that travels through a medium as a longitudinal wave.

Navigation ►T►T►T►Three types of orientation are used by animals in navigation PPPPiloting (landmarks) CCCCompass orientation TTTTrue navigation.

Sound Quality and Applications. Music vs. Noise Music –sounds that have a pleasing quality, a definite identifiable pitch, and rhythm –musical instruments.

Sound and Hearing Properties of Sound Waves, Ultrasound, The Doppler Effect.

SOUND WAVES are the result of VIBRATIONS

How do Birds Find Their Way? What we learned in the last 20 years.

Sound Sound Waves. The Production of Sound Waves Sound waves are caused by vibrations –The vibrating object has regions of air with relatively high density.

Waves & Wave Properties Sound Waves

Sound Chapter Properties of Sound Sound waves – Longitudinal Waves – Caused by vibrations – Carry energy outward, which hit your ear.

HEARING (and Balance) Hearing: Audition Balance: Vestibular System.

Properties of Sound. Loudness Loudness describes your perception of the energy of sound – It describes what you hear The closer you are to the sound,

Sound Chapter Properties of Sound  Sound waves are caused by vibrations and carry energy through a medium.  The speed of sound depends on the.

What is sound? Sound is a longitudinal wave which travels through the air through a series of compressions and rarefactions.

Animal and plant responses Homing and Migration (CB pg 216 – 222)

Homing.  The ability to return over unfamiliar territory to its ‘home’ – usually on a regular basis.

Chapter 16 - Sound  Sound waves are longitudinal waves with rarefaction and compression.  As an object’s vibration moves toward air it creates a compression.

SOUND SOUND SOUND Kim Lachler Updated 2015 NCES: 6.P.1.3.

Properties and Interactions of Sound

How do animals detect environmental stimuli?

Sonar and Echolocation

1.) How do animals and people use sound?

Sound Sound Cont. More Sound Still More Sound Light

Frequency determines pitch

MUSIC VS NOISE Music is sounds that are deliberately used in a repeated pattern. Noise has random patterns and pitches.

-The Ear -Beats Physics Mrs. Coyle.

Humans and Other Animals

Obstacle Detection Ultrasonic Sensor.

The Physics of Sound.

Sound Waves Longitudinal Pitch = frequency

Patterns in the Sky.

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Kate Straub, Julia Boothroyd, Sam Nordstrom and Anna Winter

Section 1: Characteristics of Stars

Chapter 15-1 Sound.

Sound Waves Longitudinal Pitch = frequency

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

Ch. 16 – Wave interaction II. The Nature of Sound Speed of Sound

Ch Waves & Sound II. The Nature of Sound Speed of Sound

-The Ear -Beats Physics Mr. Berman.

Obstacle Detection.

Humans and Other Animals

Sound Sound Waves.

Ch Waves & Sound II. The Nature of Sound Speed of Sound

Waves & Sound The Nature of Sound Speed of Sound Human hearing

What is the Relationship Between Latitude and Polaris?

Presentation transcript:

NAVIGATION

STAR (STELLAR) NAVIGATION Birds that migrate at night use a star compass There is a point in the northern sky about which the stars seem to rotate its called the…. North Celestial pole Birds were shown to orient towards the part of sky that rotates the least

It’s experimenting time!!!

The birds oriented to the fake sky! Birds were placed in a dome like theatre with stars projected on the ceiling Further experiments show that they only orientated towards the brightest northern stars because they move the least during the night

CHEMICAL NAVIGATION Dogs follow scents to find home and ants leave chemical trails for other ants to follow.

Crazy Fact!!!! If you block a salmons nose they can miss crucial turns in rivers because they can’t detect the chemicals for the correct path!

SOUND USED AS SONAR Bats navigate by using high pitched squeaks which bounce off objects in their path Humpback whales orientate themselves by sonar. They have excellent hearing and a big range of clicks and booms

Infrasound Humans can’t hear a frequency of less than 1Hz but it has been shown that pigeons can hear less than 0.06Hz. Hehe Infrasound travels very long distances so the pigeons use the natural sources of infrasound like crashing waves, as a mean of navigation.