insects - Auckland War Memorial Museum
Transcription
insects - Auckland War Memorial Museum
insects activities | years 1–6 7–8 9–10 ©Auckland Museum 2008 insects contents About this Resource 2 Booking Information 2 Introduction and Map 2 Background Notes 4 5 7 8 10 11 13 14 Gondwanaland Insects Alpine Zone Caves / Bush Freshwater Introduced Insects and Pastures Sandy Exposed Beaches Insects Specialties Food and feeding Maori Natural History Fact Sheets c u r r i cu lu m l i nk s Curriculum Links Learning Activities Classroom Activity Sheets Museum Insect Trails Map Gallery Activity Sheets BOOKING INFORMATION The education resources provided by Auckland War Memorial Museum focus on specific galleries or on specific exhibitions in those galleries. There are a small number of resources that were developed for exhibitions that are no longer present but which have been maintained on the website by popular demand. All education group visits must be booked. Email: schools@aucklandmuseum.com Service charges apply to education groups depending on the level of service required. Numbers and Adult/Child ratios: Pre-school 1:3 or better • Gallery Introduction with a Museum Educator or trained guide (approx 15 minutes), using resource materials. Longer gallery tours and Highlights Tours are also available. Y 1–6 1:6 Y 7–8 1:10 Y 9–13 1:30 Sessions will be tailored to suit the level and focus of the visiting group. ABOUT THIS EDUCATION RESOURCE: This kit has been designed to meet the needs of a wide range of education groups. The kit is in three separate sections and includes: Background Notes suitable for all levels Curriculum Links from Pre-school to Adult [these are still under development] Activities Pre-visit, Post-visit and Gallery Activity Sheets 24 28 39 40 Phone: 306 7040 Fax: 306 7075 • Self-conducted visits based on supporting resource materials. • Hands-on activity session for school groups with a Museum Educator (approx 45–50 mins), using resource materials. Students have the opportunity to handle real or replica items from museum collections, 22 act i v i t i e s INTRODUCTION TO THE RESOURCE: Visiting education groups may book to request the following learning opportunities: 16 17 18 All groups including Adult groups ought to be accompanied by their teacher or educator. Adult/child interaction is vital to maximize the value of the museum experience. Group leaders need to have some background knowledge of what the students are expected to cover and they do need to participate in the introduction process on arrival. Knowing about the expectations of the class teacher and the museum will make the visit smoother for everyone. www.aucklandmuseum.com Adult/child interaction is vital to maximize the value of the museum experience. Group leaders need to have some background knowledge of what the students are expected to cover and they do need to participate in the introduction process on arrival. Knowing about the expectations of the class teacher and the museum will make the visit smoother for everyone. Some education services at Auckland Museum are provided under a contract to the Ministry of Education under the LEOTC programme and Ministry support is gratefully acknowledged. insects introduction This resource traces insect history in New Zealand, from its origins as part of Gondwanaland to the present day nightmare of accidental interlopers. Its content follows the layout of Auckland Museum’s Natural History galleries: through habitats from the mountains down to the oceans. The gallery displays end with a glimpse of human impacts on our native flora and fauna. insects activities | pre and post-visit | level 1–2 Level 1 & 2 for finds such as caterpillars or a weta or stick insect. Focus Questions: . Make a mural of a land habitat. Place the animals, and plants in the habitat. Discuss the adaptations that these organisms have to help them survive. . Make insect models of beetles, dragonflies or cockroaches with Plasticine or clay. Press the models into a container of fine, damp sand to show one way a fossil can be made. Fill the imprint with plaster of Paris, turn upside down when set and carefully brush away the sand. . Collect a variety of animal footprints and other evidence of their passing, e.g. holes in leaves, leaf miners, droppings. Display as a mystery game, “Who Passed Here?” with label matching. . Brainstorm how they know something is living. Look for words like: moving, growing, eating, having babies, breathing. Create insects using natural materials e.g. Ginkgo leaves make great butterfly wings. . Cut out insect pictures and allow children to classify these according to their characteristics. e.g. all those with hopping legs, or those with knobbly antennae. Selecting a variety of boldly coloured busy backgrounds, students design an insect that would be well camouflaged against this. . Read a legend or story about some insect characteristics. A legend about ants is included in this resource. Learn “I know an old lady . . .” then make up your own words to illustrate some insect behaviours. E.g. “I saw a praying mantis sitting ever so still . . .” or “I saw a mosquito, it was trying to hide . . .” . Make a display of harmful and helpful insects and an assortment of insect repellents and anti-insect devices. Try and design traps for specific insects. Test and evaluate them. Do any specific colours attract or repel? Design a method of testing your theories. ∙ What is an insect? ∙ What makes a plant different from an insect? ∙ What evidence can we find that insects lived long ago? ∙ What is a fossil? ∙ How do fossils begin? Possible learning activities . Make a collection of animal bones, leaf skeletons, insect exo-skeletons and shells. . Play "Animal, Plant (vegetable) and Never Alive (mineral)" with objects brought by children. . . ∙ . Create your own butterfly garden with help from the school caretaker or parents. Some useful plants are verbena, cabbage, phlox, daisies, marigolds, petunias etc. Predict what will happen first and then keep regular diaries over a period of time. . Visit a habitat within walking distance that can be visited throughout the study. Collect and care 24 insects activities | pre and post-visit | level 3–4 Levels 3–4 Focus Questions: . What are the characteristics of insects? ∙ What things lived in New Zealand a long time ago? ∙ What is a fossil and how are they made? ∙ How do we group living things? ∙ What do insects have to help them survive? ∙ How do species become extinct or endangered? ∙ Where are some of the places that insects are found? ∙ What are food chains? expect to find there. Visit the habitat and identify insects, observe and record natural behaviours and note environmental impacts of humans. Classify insects identified, according to easily observable features and external characteristics. Discuss how each insect is suited to its habitat. Compare insects found, to predictions. Learn the skill of photography (especially good with a digital camera to download onto computer and create a web-page). . Have a bug catcher night-time safari. Create a light-screen trap. Which coloured light is more successful? Collate data and compare with another school’s/classes’ findings. ∙ Design a new insect which is at home on the fridge or kitchen wallpaper or dining room floor, or even in a rubbish bin or sink waste master. Consider external characteristics, catching or gathering food, predators, environmental conditions and the effect that human activity has on the insect. Give it a fun name and present in a poster, model or perhaps a role-play. ∙ Write a legend about some insects e.g. “How the grasshopper got its long legs” (read the Chinese legend about how the ant got its shape on pg 32) ∙ Make a mobile of some of New Zealand’s special insects and hanging from their bases a short “Did you know?” type label. ∙ As a class compile a list of insect adaptations and their functions e.g. weta hind legs, insect antennae, camouflage colours, sand scarab’s digging legs etc. Using common astrological star signs and the related constellation shape as examples, invent a horoscope and constellation shape based on an insect. E.g. the sign of the grasshopper which leaps to conclusions and can be green with envy. ∙ Using accurate pictures of known insects create card games for class, group or individual sorting, according to criteria set by students. Add pictures of other animals and plants native to New Zealand. Discuss external features and adaptations. . Make a display of harmful and helpful insects. Design a method to test and evaluate insect repellents or insect traps. Select a common nuisance insect and invent a trap for it aimed specifically at its behavioural or external features and adaptations. Possible learning activities ∙ Discuss the term food chain. Together make up a food chain based on a common insect. In groups create another chain based on familiar insects. Place each link on to a card, so that others can assemble the chain. Swap these “chain games” amongst the groups ∙ Construct food chains for specific habitats e.g. alpine, cave, bush, wetlands, mangroves, rocky shore, sandy shore, ocean. Start by making up songs using the tune “I know an old lady who swallowed . . .” to illustrate food chains. ∙ Following observations, sort pictures of insects into different groups according to external characteristics. Groups could include where the insects are found e.g. air, land and fresh water. . Create your own insect mask, concentrating heavily on the types of eyes, antennae and mouthparts found on specific insect heads. Perform a play for younger children. ∙ Group things by playing Animal, Plant (vegetable), Never Alive (mineral)? Identify which of these could become a fossil. ∙ Make several different fossil rocks using plaster of Paris mixed with a number of items e.g. insect wings, grasshopper legs, bones, shell, leaves, twigs. Children break open the fossil rock to discover the fossils. They can make up their own stories about how the item became a fossil. ∙ Make individual lists about: New Zealand insects I know and which of these are endangered. ∙ Use a map of the local area. Identify and label the different habitats e.g. fresh water, bush, seashore. After discussion choose suitable habitats for insects and record predictions of what the students 25 insects activities | pre and post-visit | level 5–6 ∙ Construct a mural of one of the habitats repre sented in the Museum’s Natural History galleries which follow the headings in this resource, except pasture insects which are not represented in our Museum display). Include examples of the animals and plants found there, highlighting their interactions. Level 5–6 students are familiar with). Talk about what it needs to survive. Review the term “adaptation” and describe it as being something that a living thing has or does to help it survive in its habitat (where it lives). Brainstorm what helps this animal survive in its particular habitat and how these adaptations work. ∙ Brainstorm ideas about how pests have changed life for people in New Zealand taking special note of habitat changes. Investigate the activities of the Acclimatization Society (now called the Fish and Game Council). How did this group contribute to the introduction of foreign organisms? Students could write a letter to an imaginary paper about how humans have changed the New Zealand environment. ∙ Brainstorm intercontinental transport impacts on the environment. Research the spread of mosquito borne diseases such as West Nile virus in America. Discuss a scenario where diseasebearing mosquitoes entered New Zealand, such as nearly happened with the Australian salt marsh mosquito. What would need to be done? E.g. what is being done about the Varroa Bee mite? . Investigate the introduction of the South African praying mantis and its effect on our native species of mantis. Do a counting survey in a garden looking for evidence, such as the distinctive egg cases of either species, to aid in drawing conclusions. ∙ Design a native insect board game aimed at primary school level e.g. “Who am I”, matching adaptations to the animal. ∙ Carry out a fieldtrip around the school grounds and in a nearby suitable area. Collect and log the numbers and types of cicada nymph skins found. This type of data can be built up over several years. Included in this resource is an excerpt of an article on cicadas by Dr. John Early, the Auckland Museum’s entomologist (see page 27). Use the data to predict past vegetation patterns in your area. ∙ Divide the class into two groups. Each selects a different ecosystem. e.g. freshwater swamp or a sandy beach community. Identify the various living and nonliving components of it. Compare the diversity and adaptations displayed by inhabitants of each community. Decide how to display the group’s findings Focus Questions: ∙ ∙ ∙ ∙ ∙ ∙ How do humans affect the New Zealand environment? Should the environment be protected? Living or nonliving? How can this native animal/plant survive here? Who eats who? How have some insects adapted to their biotic and abiotic environments? Possible Learning Activities ∙ ∙ Brainstorm a list of insects found in New Zealand. Have the class divide the list into native and introduced organisms. Each student chooses an organism to research, and presents this information in poster form. Posters can be displayed as a mural Read a legend or story about how animals got their special features: included in this resource is a charming Chinese legend of how the ant got its waist. Write a myth about a native insect, perhaps how it got its name e.g. the very unusual Batwinged Cannibal Fly (Exul singularis) ∙ Discuss the concept of food chains and energy flow within an ecosystem with special regard to the role of insect life. ∙ Make a food chain mobile based on the dietary habits of a special native or introduced insect. An interesting one may be based on the beech scale insects both before and after the German wasp invasion (Find out on the Internet). ∙ Collect a range of insect pictures. Review the term “classification” and ask students to group the insects in any way they think suitable. They need to record what information they used to classify the insects in such a way e.g. size, colour, locomotion mode etc. ∙ As a class select a native insect (it will need to be one with easily recognizable adaptations that 26 insects activity sheet cicadas — little summer screamers (links with learning activities level 5 & 6) Article for Soil and Health: Our Insect Allies Although it marks the beginning of warm weather, at times the cicada chorus is simply deafening. Many people soon tire of their ceaseless daytime racket which usually lasts until mid-late March at least. The racket they make is all about sex. It’s the males who make the noise and fuss as they try to attract a mate, while the females remain silent. The song is very much a daytime activity and they usually cease as night draws on, their harsh clamour being replaced by the more gentle and melodious whistling of crickets. There are about 30 species of cicadas in NZ, all native, but the summer song comes mainly from two of them which also happen to be our largest cicadas. Males of the long winged cicada (Amphisalta zealandica) congregate in large numbers and sing in unison as though they are one gigantic super-male. Males of the short winged cicada (Amphisalta cingulata) are solitary, their sound often drowned out by the others. The sound is produced from a special organ located in a cavity on each side of the first segment of the abdomen. In addition to this basic zizzzzzz component of the repertoire, you can hear a series of clicks as the cicada periodically bashes its wing against the twig or branch on which it is perched. New Zealand Amphisalta are the only cicadas in the world known to do this. Of course, the other obvious thing about cicadas is their “shells” left behind on tree trunks. These are the old shed moult skins from the nymphs which have just spent 3–6 years underground in the soil, sucking sap from tree roots. When fully grown they crawl up out of the ground at night, their skin (exoskeleton) splits down the back, and the adult cicada emerges. Under cover of darkness, their wings expand and their tender skin hardens as dawn approaches. Amphisalta zealandica has bright brown husks but those of A. cingulata are pale. The interesting thing is that these two species have slightly different habitat requirements, the former being a cicada of the forest, the latter being more at home in scrub. But what is more interesting is that the cicadas stay put even though the forest or scrub may be cleared through urban sprawl. The exclusive occurrence of pallid cicada husks in my Onehunga garden indicates the presence of A. cingulata which tells me that this area was scrub covered before urbanisation. It is also fortunate because this species is solitary and doesn’t form deafening aggregations like A. zealandica whose bright brown husks festoon the tree trunks of the Auckland Domain, indicating that this part of the city was indeed once covered by forest, and whose singing en masse can make a lunchtime stroll almost unbearable. John Early, 22 March 2000 27 insects classroom activity sheet 1 Ladybirds - Use the information in the article about ladybirds (following pages) to decide which months of the year would be best to study this insect. - Survey your own garden counting the number of lady birds in a small, well vegetated area (e.g.1x1m, or select a plant type in the school garden, perhaps rose bushes or any plant heavily infested with aphids) Record on which plants the beetles were found. Were they all the same colours? Search carefully for the larvae (see the photo included). In class collate, chart, graph and compare your data with others. Were there any differences? What was different about the garden environments? (Make sure you investigate the presence of ladybirds yourself first to avoid disappointment). If there are no ladybirds try aphids and ants where the ants “milk” the aphids (see following material). - Roses and many other plants often become food for aphids. Design an observation sheet to record the speed at which ladybird larvae can destroy aphids. Children could think about what factors may influence this, e.g. how long since the ladybird had a meal? What effect might the density of aphids have? (Lure ladybirds with a mixture of honey, water and brewer’s yeast) Alternatively do ant/aphids observation. Adapt the behaviour record sheet (see Classroom activity sheet 2). What happens if you place an obstacle in the ants’ path? - Draw your own lifecycle of a ladybird (or aphid or ant). Make up a play to teach others about the valuable work ladybirds do. Alternatively the ant and cicada Maori legend can provide a starting point for your play. - Use the Internet to find out more about ladybirds, ants or aphids. (They are called Ladybugs in USA) - Make a food chain diagram based on the aphid, ladybird and/or ant lifestyles. 28 insects activity sheet | page one all about ladybirds (Condensed from an internet article) www.celticbug. com/LadybugLore/ LadybugLore.html the world to help control (and conquer) outbreaks of crop-destroying pests. Their scientific names (Coleoptera, meaning “sheathwinged”, and Coccinellidae, meaning “little red sphere”) can be quite a mouthful, but by whatever name you call them, Ladybirds are well known and well loved all over the Earth. There are nearly 5,000 species worldwide! Female Ladybirds produce clusters of 20–50 yelloworange oval-shaped eggs in the early spring. You can usually find them stuck to the undersides of leaves. The average female will lay anywhere from 300 to 1000 eggs during her lifetime! Once they hatch the Larvae are ravenous and immediately begin gorging on aphids, mealybugs, scale insects, and other softbodied pests. One larva can consume as many as 350 aphids during the 3-week period before it enters the Pupa stage and turns into an adult. They aren’t much larger than a pencil-rubber (some are even smaller!), and they come in a wide variety of colours, including red, orange, pink, yellow, black and even metallic blue. They can have as many as 20 spots or no spots at all. Most species of Ladybird are voracious aphid-eaters, although some eat only scale insects and/or mealybugs, others eat mites, and at least one (Illeis galbula) easts mildew fungus. One Ladybird can eat about 600 aphids in its lifetime, and about 3000 Ladybirds can easily protect an entire acre of plants! They’re also one of the few insects that hibernate during the winter months, emerging in the spring to lay their eggs. Ladybird Larvae are actually larger than their parents, and they look very much like little blue-black alligators! In fact, some well-meaning gardeners will actually exterminate them because they don’t recognize them as Ladybird offspring! However, all Ladybirds are completely harmless to humans, but extremely helpful in your garden and yard. Numerous species of Ladybirds have been “employed” around Ladybird larva In New Zealand the best time to look for ladybirds is when aphids are around in large numbers, in early spring and again in autumn. Ladybirds are a bit clumsy, though efficient, fliers. Their transparent wings (hidden from view under the outer wing cases, until they take to the air) flutter at a rate of 85 beats per second! Their bright colors serve as a warning sign to birds and other potential predators that they don’t taste good! If attacked by a predator, Ladybirds ooze a yellow, foul-smelling liquid (actually their blood!) from their leg joints, which is usually all it takes to convince their attacker not to continue snacking on them. Finally, after consuming aphids all summerlong, the air starts to turn brisk, and the Ladybirds begin to seek shelter for the winter. They cluster together by the hundreds (for warmth, it’s presumed) under dead leaves or inside hollow logs. Ladybird eggs 29 insects activity sheet | page two There they will remain — in hibernation — until the warmer temperatures return, indicating that Spring has come and the aphid population has replenished. The Ladybirds will then devote themselves to several days of eating and frenzied mating, the females sometimes feeding and breeding at the same time! Our beautiful, bright beetles will die soon thereafter but before they do, new clusters of yellow-orange eggs will be laid and the life cycle begins anew. “Ladybird, Ladybird, fly away home...your house is on fire, and your children will burn! Except little Nan, who sits in a pan, weaving gold laces as fast as she can!” Undoubtedly, you’re familiar with this well-known children’s rhyme, but do you know how it originated? In Medieval England, the farmers would set torches to the old Hop vines after the harvest, to clear the fields for the next planting. The poem was a warning to the aphid-eating Ladybirds, still crawling on the vines in search of aphids. The Ladybirds’ children (larvae) could get away from the flames, but the immobile pupae (Nan) remained fastened to the plants and couldn’t escape! called these beautiful insects “The Beetles of Our Lady”, and they eventually became popularly known as “Lady Beetles”! The red wings were said to represent the Virgin’s cloak and the black spots were symbolic of both her joys and her sorrows. LADYBIRD LEGENDS Nearly all cultures believe that a Ladybird is lucky! Killing one is said to bring sadness and misfortune. In the 1800s, some doctors used Ladybirds to treat measles! They also believed that if you mashed Ladybirds (ewww!) and put them into a cavity, the insects would stop a toothache. Folklore suggests if you catch a Ladybird in your home, count the number of spots and that’s how many dollars you’ll soon find! By whatever name you know them as, Ladybirds are certainly well-known and well-loved, all around the Globe. HOW THE LADYBIRD GOT ITS NAME There are varying legends about how the Ladybird came to be named, but the most common (and enduring) is this: in Europe, during the Middle Ages, swarms of insects were destroying the crops. The farmers prayed to the Virgin Mary for help. Soon thereafter the Ladybirds came, devouring the plantdestroying pests and saving the crops. The farmers Hibernating Ladybirds 30 insects activity sheet | page three An excerpt from an article for Soil and Health (2002), by John Early, Auckland Museum’s entomologist: “The 25 or so dull brown or blackish native NZ species live incognito and usually don’t venture into our gardens, but not so the introduced species, often brightly coloured with contrasting patterns of black on red, yellow or orange, or the inverse of orange on black. On the face of it, they seem unlikely predators and show none of the usual features associated with predation. Their squat and dumpy bodies with short legs are hardly designed for speed, there are no prominent jaws held forwards for seizing prey, and their bright colours seem aimed to advertise their presence rather than provide camouflage for stealthily creeping up on their victims. But then again, the things that ladybirds eat aren’t very mobile themselves and are unlikely to get up and run away from an approaching predator decked out in hazard warning colours. Two common reddish orange species are the elevenspotted and two-spotted ladybirds. The first of these was deliberately introduced from Europe in 1874 as one of the first attempts at aphid control in NZ. It is also the first documented case in the world of the transfer of a predatory insect for biocontrol. The larvae are just as voracious as the adults, and feed on several aphid species on a wide variety of plants from grasses to herbs to trees. They’ll also attack small caterpillars. Two spotted ladybird (Adalia bipunctata) prefer to live it up in the branches — look for it on aphid-infested fruit trees. Both of these ladybirds can be found throughout NZ, but they seem more abundant in the south, especially drier areas like Hawkes Bay and Canterbury. A third orange-red species with black markings can become abundant in the top half of the North Island. This is the double-cross ladybird (Coelophora inaequalis), whose markings produce a roughly delineated cross on each wing cover. It’s a generalist feeder on a number of different aphid species. It can become rather numerous on my swan plants late in the season where it tucks in to the oleander aphid, that charming yellow and black aphid which can cover the stems in its sheer abundance, and whose colonies perform a synchronized dance when disturbed. This ladybird is a native of Australia and the Pacific, and appeared here in the 1960s. Metallic blue One of the most familiar ladybirds in the North Island is the steelblue ladybird Halmus chalybeus. It’s an Australian species, brought here in 1899 to control black scale, but it will attack a range of other scale insects as well as aphids on a variety of plants. This species doesn’t seem to be much affected by the seasons, and you can find it year round, particularly on citrus. Yellow and black Harmonia conformis, at 6mm long and yellow with 18 black spots, is one of the largest ladybirds. It was brought in from Australia and seems relatively common around the Auckland area. It attacks mealybugs and psyllids, (small, scale-like nymphs living in dimples on leaf undersides) as well as aphids. But it’s a smaller yellow and black species that is more commonly encountered in northern gardens. The mildew ladybird (Illeis galbula), of normal ladybird proportions, is an unusual member of its family because it has forsworn carnivory for a fungal diet. In autumn you can often find huge numbers of them and their larvae on the underside of mildewed leaves, particularly of cucurbits (pumpkin type family) and dahlias. This species mysteriously appeared in the mid 1980s.” 31 insects activity sheet Scientist estimate that approximately 10% of the world’s biomass is made up of ants. Another 10% are termites. Today there are about 1 million ants for every person on earth. New Zealand has only 10 native ant species, compared with Australia’s 5000. The native ants occur mainly in the soil and are rarely encountered inside houses. Unfortunately the number of introduced species is increasing each decade (28 kinds by 1991). The most common interloper into our kitchens is the introduced Asian White-footed House Ant (Technomyrmex albipes). The most worrying discovery lately has been a nest of Red Fire Ants close to Auckland airport. The M.A.F. response was quick and follow-up bait stations indicate it’s unlikely that the Red Fire Ant became firmly established on this occasion. The following legend suggests the origins of the body shape of the ant: An Ant Legend from China Why the Ant has a Waist Chaozheng Lien, the founder of the NaXi nation, fell in love with Chenhong Baobai, the daughter of a god. Lien asked this god for her hand in marriage. Unfortunately Chenhong Baobai’s father didn’t like the idea at all. Hoping to discourage the eager suitor he asked Chaozheng Lien to solve numerous extremely difficult problems. The god thought that by creating problems of such difficulty Lien would be forced to give up, proving he was unworthy of marrying the princess. But, with her help, Lien managed to complete all his tasks and married Baobai. One of the challenges had been to harvest and then to sort out and separate nine types of cereal seed. With the help of a white butterfly and a black ant, Lien managed to gather the seeds into a pile. When he separated them and counted them he found that three and a half of the seeds were missing. It turned out that a turtledove had eaten three and the ant had taken the other half seed. Lien shot down the turtledove to retrieve the three seeds. He then found the ant under a stone and tied a horsehair around it so he could follow the ant to where it had hidden the half seed. Lien did not remove the hair and to this day, ants can been seen with a tight knot around their waist. Chinese pictograph depicting the legend 32 insects activity sheet ants & aphids Taken from the website: http://ant.edb.miyakyo-u.ac.jp/Taxo_E/F80902.html Rearing insects to obtain honey Ants sometimes take care of the larvae of aphids or scale insects. This seems strange, but the reason is that since these insects release a sweet sap, the ant raises them to obtain a supply of the sap rather than eating them. As long as these insects are being cared for by ants, they are protected from other enemies. Keeping aphids Some people call the aphid “the ant’s cow”. In order to obtain sweet sap from the aphids, ants carry them to the buds of plants that produce a large amount of sweet sap, especially rose buds. Native Ant (Monomorium antarcticum): Length 1cm, Golden brown with 3 black bands over the abdomen. The ant also raises scale insects. Instead of taking the sweet sap away, the ants defend the scale insects from parasitic flies or carry them to a place where a large amount of the sweet sap can be obtained. Paratrechina flavipes sucking sweet sap from scale insects Lasius japonicus obtaining honey from aphids on a rose Paratrechina flavipes helping aphids to move 33 insects classroom activity sheet Ants: Foraging experiments Aim: To design a controlled behavioural experiment with wild ants ∙ Survey experiences with ants among the students. Make a chart of known lifestyle facts to date. Students draw what they think happens underground. ∙ As a class discuss the type of food ants are commonly attracted to (cat food, picnic sand wiches). What might be important to an ant when looking for food (Perhaps distance from nest, position of food, sun or shade, odour of food, salty or sweet, etc.)? List ideas and suggest how each idea could be tested. Select one idea out of all and predict what will happen. Your whole class will be asking the same experimental question but approaching it with their own group food choices. ∙ Search for ants’ nests outside and select as many as possible which are at least 20cm apart. ∙ Working in groups collect some test foods, each group’s foods according to their own experimental design. You’ll need magnifiers, food containers, data sheets and observation recording sheet. ∙ Data sheet: The nest is shown in the centre of the sheet. Each group draws and labels the positions of their food lures and any other relevant information, depending on the design parameters. Beside foods record the order and speed they were discovered, 1st, 2nd etc. Also do an ant count at set times to discover which was the most and least popular food. ∙ Observation sheet: The purpose is to observe and record the behaviour of a number of individual ants. Each group member fills in the following details about several ants observed going to different lures. *Did the ant follow a trail to the food? * What happened if it met another? * Which body part touched the food first? *Did it follow a trail back to the nest? ∙ Compare, collate and analyse data as a class. Display in any form suitable for your level. Collect and look at various ants under a microscope. Are they all the same species? ∙ For able students place a paper strip close to one of the food lures. This will later be able to be rotated to observe whether ants lay a scent trail (the turning of the strip by 180° will confuse the ants if they have laid a trail). ∙ Older students may do further research about introduced ants and other pest dangers by accessing the Landcare Research web site. Others might be interested to investigate insect pheromones. 34 insects classroom activity sheet Insect Mouth parts experiments Aim: To identify different insect mouthpart adaptations and investigate how these function 1 Brainstorm ideas for different insect foods (include our blood as a food). Chart the foods and list beside each type of food the method with which it could be eaten. If you had to eat this using only your mouth what tools in your mouth would help? E.g. nectar (liquid in a small cuplike area), will need to be sucked up with a tube, like drinking a milkshake. Humans can shape our lips like a tube, but can insects do this? 2 Give each child an iceblock stick and a container half filled with cornflakes. The object is to eat the contents, but you can only use hands to steady the cup. Discuss how this task could be made easier. 3 Hand each child a picture of one insect out of the 5 following types: fly, mosquito, praying mantis, grasshopper, butterfly. Ask them to make a 5person group in which all insects are different. Each group goes to a workstation which displays various insect “mouthpart” tools. • scissors • plastic drinking straw • straw with sharply pointed end • straw with a piece of flat sponge attached to one end At each station is also one of the following “foods”: • saucer with water (represents any free liquid source such as nectar) • cup with water but covered in Glad Wrap (vein covered by tough skin or liquid inside plant stem) • bowl of marbles (insect prey with hard carapaces such as beetles) • bowl of raisins (softer insects and solid bits of food); sheet of paper (plant leaves). Each child selects a feeding tool which would be most appropriate for the insect they represent. They then discuss and try collecting the foods with only the tools they have. *Note: Straws should not be sucked with the mouth (meningitis). Water can be collected by dipping the straw in then holding a finger over the end. Each child collects foods in a separate container. Groups move around each station to experiment with all the foods available. Food supplies will need replenishing periodically. Discuss which insect’s mouthparts had the easiest task to collect foods. Which could collect a variety of food? Chart results and add to the chart as the study progresses any other insect with the same mouthparts as the experimental five. • clothes peg 35 insects classroom activity sheet Insect game The size of an insect population can change quite dramatically. Usually environmental factors are at work. This game gives you a chance to be a conservation scientist involved in studying a population of dragonflies. Most of us will have seen beautiful, acrobatic dragonflies near ponds and swamps. Few though will have seen the ugly, dull coloured young. This is because dragonfly nymphs (babies) hatch out from eggs which the mother lays in or near the water. They spend several years lurking near the muddy lake bottom hunting worms, tadpoles and insects. When they have grown enough they emerge from the water, crawl out of their old skins and fly away to become fearsome hunters in the air. Dragonflies represent the most ancient flying insects. Their ancestors first appeared about 350 MYA during the Carboniferous period. The habitat in this game is a small lake. You will need a generous supply of counters for this game. In the START square each player begins with a small population of 10 dragonfly nymphs. You could place nine coloured counters in your matchbox for this, and use only one to move on the game board. Throw a dice and move around the board. Follow the instructions and add (or remove) counters in your box. At the end of the game count who has the most nymphs left in their population. 36 insects museum insect trail map 4 4 6 4 1 COASTAL OCEANS 2 6 DEEP OCEANS 5 6 7 1 VOLCANOES 1 3 8 9 10 LAND 11 12 21 13 14 NATURAL HISTORY INFORMATION CENTRE 19 16 15 TE AO TUROA ORIGINS 17 18 18 22 20 This Gallery Map is for use with all MUSEUM NATURAL HISTORY TRAILS 37 insects museum insect trail | years 1–3 MAP REF. 2 New Zealand’s original inhabitants This is a female Giant Weta What is missing from the weta’s head? Draw them. I can jump but I have no __________ Something is missing from the end of her body. She lays eggs with this. Draw it in. Her body has patterns on the back. Draw them in the right place. 4Migrants continue to arrive Which number insect do you like? How is it different from the weta? Can you guess who I am? I am named after a dangerous beast which breathes fire. I hunt near water. I have 4 see-through wings. I am a ____________________ Draw me here 11Limestone Cave Look up at the roof. The little stars are Glowworms. They use light to catch their __________. Find the Cave Weta. Compare these Weta with the Giant Weta. How are they different? ____________________________ How are they the same? ____________________________ 38 insects museum insect trail | years 1–3 MAP REF. 10 Forest Birds [computer touch screen] Touch the: Rifleman Its beaks holds a __________________ Yellowhead Its beak is full of __________________ Kaka It is hunting under the _____________with its beak. What do you think it will find to eat? 9A fallen tree Fill in the gaps in the flow chart about the Huhu beetle Grub eats beetle grub becomes which is eaten by Find the adult Huhu beetle on the log. 8 Wetlands Some insects live in water. Can you find an insect that looks like this What does it use to move around? _______________ Why do you think it keeps swimming to the top?_____________________ 5Small animals on a sandy beach Find this insect baby (a larva) It changes into the black beetle when it grows up. (Look just above the larva) Finish the scarab beetle 39 insects weird & wonderful activity sheet Bug Bits Look in the Live Insects case: Clue 1 How many body parts does an insect have? one Be an insect supersleuth Answer the clues to draw the insect under the magnifying glass! Open at least 4 red drawers to find: Clue 2 How many legs does an insect have? two four two six three Draw the correct number of legs onto the body you have just drawn. Copy the correct body under the magnifying glass Look in the red drawers near the stick insects: Clue 4 Clue 3 Which of these is an insect’s eye? How many wings do most insects have? What is the name of the insect you’ve drawn? one L_____ two Find the live ones in the glass case Draw the correct eyes onto the insect’s head four six 40 insects museum insect trail | years 4–6 MAP REF. 1Insect Curiosities Choose two different insects. Write down their names Which insect group do you think each belongs to (or does it need a new group)? (ant, fly, bee, grasshopper, butterfly, beetle) Why? Natural History Information Centre Find one fact about insects from the information centre. [ Information can be gathered from computers, newspaper articles and books] 4Migrants continue to arrive Read the names of the insects numbers 8 to 16 Which name do you like best? Explain why the name does or doesn’t match the insect. 12 Life on a Mountain Top See if you can find the insects on the rocks. All the insects are a dark colour. This helps them absorb warmth from the sun. Why would this be useful in the mountains? 11Limestone Cave Find insects which are specially adapted to cave life (don’t forget to look up). What are the glowworms attracting with their light? Why do cave weta have such very long feelers? (hint: they live in darkness) 10 Forest Birds [computer touch screen] Touch the screen to find birds eating or collecting insects. Find the kaka. It collects insects from under the bark. How is it suited for this job? 41 insects museum insect trail | years 4–6 MAP REF. 9A fallen tree Find the window in the fallen tree. Fill in the gaps in the flow chart about the Huhu beetle Grub eats grub becomes is eaten by The adult Huhu beetle (on the log) has long feelers. Why doesn’t the grub have feelers? 8 Wetlands Find the backswimmers and watch them carefully for a while. How are these insects adapted to living in water? Why might they go to the top? 5Small animals on the sandy beach Read about the Native Bee (10) and the Black Spider-hunter Wasp (8) Why do they nest under the sand ? The Beetle (4) uses seaweed to and to under. Find the Tiger Beetles (1, A B C D) How are those beetles different from each other to look at? Why do they need to be different? Sketch your choice in this space 42 insects weird & wonderful activity sheet Weird & Wonderful Insect information gathering Eye spy Open some of the red insect drawers With the yellow labels. Find one insect that could hide on a leaf. Find one that has good legs for jumping. Find a plant that traps insects. It is called carnivorous. Choose one of the live insect displays. Draw the insect catcher of one plant. Have they been provided with food? Can the insects hide anywhere? Are all the insects the same size and shape and colour? (If some are much smaller they are probably nymphs or babies.) What other reasons can you think of that they might be different? How does the plant attract insects? Draw one here Ask the facilitator for help 43 insects gallery insect trail | years 7–8 MAP REF. 1Insect Curiosities Choose two different insects. Write down their names Which insect group do you think each belongs to (or does it need a new group — ant, fly, bee, grasshopper, butterfly, beetle)? Why? Do NZ weta, stick insects and earwigs have wings? Many insects in New Zealand are wingless. Winglessness often happens in windy countries. Why? 3 natural History Information Centre find one fact about one of the insects you choose in the question above. [You may use the computers, books, newspaper articles or posters] 4Migrants Continue to Arrive Read: Insects & spiders. The allows new species to arrive mostly from Look at 4, 5 6 and 7. Usually these insects have their wings tucked away under two hard How does this help the insect? Beetles also hide their wings the same way. Most migrants have wings. How could the spiders have got here? 5Life on a Mountain Top What two advantages do insects in the mountains get from their dark colours? and . Find some dark coloured insects on the rocks and in the drawer below. 6Limestone Cave There are five easy-to-find creatures in this cave display. Use the chart below to classify the five creatures. Write their names by the correct insect. Does the creature have: Legs No Legs 6 Legs 8 Legs or more 2 hard covers hide wings, can’t see the segments of abdomen Beetle 4 wings Just 2 wings Fly Scaly and coloured Butterfly or moth Transparent 2 wings 8 Legs No wings Wings Dragonfly, bee, wasp, or cicada Body long and thin more well developed legs and long feelers Pincers at All legs the one end same length Earwig Stick insect Weta Spider Centipede or milipede Slug or snail 44 insects gallery insect trail | years 7–8 MAP REF. 10 Find the Forest Birds (a big glass display case) with the computer touch-screen nearby Look at the Kaka (4) and touch the screen to see it hunting for food. Choose one of the following habitats. Fill in the parts of the food-chains that are missing. (plant uses sun to make own food) (is eaten by) Producer (is eaten by) Consumer Predator Fallen log forest area _____________ Huhu grub _____________ Swamp area _____________ Cabbage tree moth _____________ Sandy beach area _____________ Beetle (4) _____________ 5Small animals on a sandy beach Find the Tiger Beetles (1, A B C D) How are those beetles different from each other to look at? Why do they need to be different? 45 insects gallery insect trail | year 9 MAP REF. Begin this trail in the Origins Gallery. 1 Insect Curiosities Although in overseas countries many of these insects have wings, here in New Zealand they have lost the power of flight. Give two reasons why. [Note: New Zealand is very windy] Find two other ways in which these insects are vulnerable (apart from being unable to fly) 2 Begin at New Zealand’s Original Inhabitants Use the classification key to find the name of the order which each of the following animals belong to. Specimen belongs to Order found in Gallery area Cave Weta (7) 2 Origins, New Zealand’s Original Inhabitants Giant Bush Dragonfly (14) 2 Origins, New Zealand’s Original Inhabitants Black Tunnelweb Spider (15) 2 Origins, New Zealand’s Original Inhabitants Black Mountain Ringlet Butterfly (10) 5 Land , Life on a Mountain Top Tachinid Fly (35) 5 Insect drawer below Mountain display Giant Paua Slug (2) 6 Land, Limestone cave Does the creature have: Legs No Legs 6 Legs 8 Legs or more 2 hard covers hide wings, can’t see the segments of abdomen Coleoptera Just 2 wings Diptera 4 wings Scaly and coloured Lepidoptera Transparent 2 wings 8 Legs + 2 palps No wings Wings Ondonata Body long and thin more well developed legs and feelers Pincers at All legs the one end same length Dermaptera Phasmatodea Orthoptera Arachnidae Myriapods Gastropods 46 insects gallery insect trail | year 9 MAP REF. 3 Natural History Information Centre Choose one insect you have seen in the gallery and find out more about it from the Information Centre. [There are newspaper articles, books, posters and computers] 10Small animals on a sandy beach Choose two insects: a herbivore and a carnivore. 1 2 What did they consume, and did they use any special method to organize an abundant food supply? 47 Recorded information: (09) 306 7067 Administration: (09) 309 0443 Fax (09) 379 9956 School Bookings: (09) 306 7040 Fax (09) 306 7075 Email: schools@aucklandmuseum.com www.aucklandmuseum.com Auckland Museum The Domain Auckland Private Bag 92018 Auckland New Zealand