OTAGO PENINSULA YEAR 9 FIELD TRIP

Transcription

1 1 OTAGO PENINSULA YEAR 9 FIELD TRIP Name: Class:

2 Are we there yet? Ask the bus driver for the odometer reading when you get on the bus and again at lunch. Record this below. Use the distance travelled and the time taken to find out the average speed of the bus. 2 Odometer Start: Odometer Lunch: Distance travelled: Time taken: km km km hours Average speed = distance time = km h = km/h Questions 1) What would the speed be if we took twice as long? 2) What would the speed be if we went three times the distance but in the same time? 3*) During lunch you could try to find the swimming speed or flying speed (in metres per second) of a bird by repeating your calculations using an estimate of distance and time. Average bird speed = distance time = m = m/s

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8 8 Can you identify these birds? Name Did you see it? Habitat (where is it? Pied stilt Oystercatcher White faced heron Red billed gull Black billed gull Plover Shag Mallard duck Black Swan

9 9 Site 1 Time Weather Name of bird Habitat Numbers What are they doing? Spacing

10 10 Site 2 Time Weather Name of bird Habitat Numbers What are they doing? Spacing

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14 Mighty Molluscs! 14 New Zealand has 3119 named species of molluscs as of December Another 1700 or so have been found and are waiting for names there are an unknowable number waiting to be discovered! Write examples of molluscs from the aquarium discussion into the diagram below. Mollusc Examples Source: University of Otago. Accessed: August 2010

15 What makes a Mollusc a Mollusc? 15 List the features of molluscs around the diagram below. Mollusc Features

16 Chiton Features 16 Aim: To sketch and label the parts of a chiton. Dorsal (top) view Label these parts: Girdle (tissue surrounding shell) Shell (8 plates) Anterior (front) valve Ventral (bottom) view Posterior (rear) valve Intermediate valve Label these parts: Muscular foot Girdle (mantle tissue) Mouth Gills Gill groove (between foot and girdle) Anus

17 Chiton Adaptations 17 Adaptations are features of an organism that help it to survive in its habitat Structural Physical features - eg Hawk has claws to help it catch prey. Physiological Processes and functions -eg Insulin regulates blood sugar Behavioural Actions of the organism - eg Rabbits freeze when startled. Adaptation Type (eg structural) How does this help the chiton survive?

18 Key to Chitons at Portobello Aquarium Snakeskin Chiton Sypharochiton pelliserpentis 18 Hairy Chiton Acanthochitona zelandica Look for: snake skin banded scales around shells, oval shape, green/brown colour Green Chiton Chiton glaucus Look for: hairy/bristly tufts growing around the outer edge of the shell, well camouflaged Brown Chiton Ischnochiton maorianus Look for: uniform dark green colour, oval shape Look for: narrow shape (compared to other chitons), usually a brownish colour

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20 20 Chiton Survey: Discussion 1. Where on the shore did you find the most chitons? 2a. Did the number of chitons increase or decrease as you moved away from the water? 2b. How would you explain this distribution pattern? 3a. Where did you find the most chitons? On the cobble, continuous rock or sand? 3b. How would you explain this distribution pattern? 4a Were the chitons always found with the same type of plants and animals? 4b. Were the chitons always found next to other chitions? 4c. Did bigger rocks always have more chitons? 5a. What do chitons eat? 5b. What might eat chitons? 5c. Draw a food chain that includes chitons. Green Chiton - Chiton glaucus

21 21 Chiton Response to Light Aim: To observe how chitons respond to light Method: Find a rock that you can easily handle. Turn the rock over so that the chitons are exposed to the sunlight. Draw the rock surface below and note the position of at least one green and one snakeskin chiton. Observe for five minutes and record your observations. Draw the final position of each chiton you observed at the end of your five minute observation time. Results: Sketch the initial and final positions in the boxes below (label the species) Initial positions of chitons Final positions of chitons Discussion: 1. Which species responded to light? 2. Describe the way the chiton responded. PTO

22 22 3. How does a chiton know that light intensity has changed (refer to the chiton diagram you made earlier are their eyes.? 4. What is the advantage of moving away from the light? Add this adaptation to the chiton adaptations page. 5. How reliable are your observations and data? 6. Is light the only factor the chiton might be responding to? 7. Write a brief method to show how you could show that the chiton is responding to light and not something else.

23 The Rocky Shore Environmental Factors 23 Abiotic Factors: The physical factors in an environment such as rainfall, humidity Biotic Factors: The living factors in an environment such as competitors, predators. Think about the rocky shore environment. List the abiotics and biotic factors found there. Abiotic Biotic

24 The Rocky Shore Definitions 24 Use an example from the rocky shore at the Portobello aquarium to help you define each of the following terms. Term Definition Example Habitat Species Population Community Ecosystem

25 Bird Adaptations Adaptations are features of an organism that help it to survive in its habitat Structural Physical features - eg Hawk has claws to help it catch prey. Physiological Processes and functions -eg Insulin regulates blood sugar Behavioural Actions of the organism - eg Rabbits freeze when startled. Choose a bird that you have observed in Hooper s Inlet. Complete the table below to describe its adaptations. 25 Bird: Adaptation Type (eg structural) How does this help the bird survive?

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28 28 1 Black billed gull (front) Red billed gull (rear) 2 Paradise duck (left female, right male) 3 Black backed gull 4 White faced heron 5 Pied oystercatcher 6 Variable oystercatcher 7 Black swan 8 Spoonbill 9 Pukeko 10 Magpie 11 Kingfisher 12 Canada goose 13 Mallard duck (female left, male right) 14 Spur winged plover 15 Pied stilt 16 Hawk 17 Pied shag 18 Banded dotterel 19 Blue penguin 20 Spotted shag 21 Little Shag Common Otago Peninsula Birds