Question of the day…Question of the day…Finish Berlese QuizFinish Berlese Quiz

Friday, April 18th 2008Friday, April 18th 2008

QuestionsQuestions

1.1. What kind of scientists was Berlese?What kind of scientists was Berlese?2.2. What did he study?What did he study?3.3. According to our results, which soil sample According to our results, which soil sample

contained the greatest diversity of contained the greatest diversity of organisms?organisms?

4.4. The cover of soil and leaf litter provides The cover of soil and leaf litter provides conditions that are _______ & _______ conditions that are _______ & _______ which the organisms we observed prefer.which the organisms we observed prefer.

5.5. Describe one way your team might improve Describe one way your team might improve this experiment to get better resultsthis experiment to get better results

InsectsInsects

Little mouth, eats a lotLittle mouth, eats a lot

What is an Insect?What is an Insect?

Segmented bodySegmented body ExoskeletonExoskeleton Jointed appendagesJointed appendages Body divided into 3 partsBody divided into 3 parts

HeadHead ThoraxThorax AbdomenAbdomen

Three pairs of legs attached to thoraxThree pairs of legs attached to thorax

Introduction to Insect Body PartsIntroduction to Insect Body Parts

Dirty Mouth?Dirty Mouth?

Insects have three pairs Insects have three pairs of appendages used for of appendages used for mouthparts…mouthparts…

Mandibles- used to saw Mandibles- used to saw and grind foodand grind food

Proboscis- used to suck Proboscis- used to suck nectarnectar

Sucking or Chewing?Sucking or Chewing?

Tiger Swallowtail Butterfly

Mosquito

Horsefly

Carpenter Bee

Proboscis or Mandibles?Proboscis or Mandibles?

MOUTHPARTS OF SELECTEDMOUTHPARTS OF SELECTEDINSECT ORDERSINSECT ORDERS

OdonataOdonata (dragonflies): (dragonflies): chewingchewingIsoptera Isoptera (termites):(termites): chewingchewingHemipteraHemiptera (true bugs): (true bugs): suckingsuckingHomopteraHomoptera (cicadas, aphids, etc): (cicadas, aphids, etc): suckingsuckingNeuroptera Neuroptera (antlions, lacewings): (antlions, lacewings): chewingchewingColeopteraColeoptera (beetles): (beetles): chewingchewingLepidopteraLepidoptera (butterflies & moths): (butterflies & moths): suckingsuckingDiptera Diptera (flies): sucking(flies): suckingHymenopteraHymenoptera (wasps, bees): (wasps, bees): chewing/suckingchewing/sucking

Your turn…Your turn…

A.A. Proboscis or mandibles?Proboscis or mandibles?

B.B. Sucking or chewing?Sucking or chewing?

1. Great spangled fritillary

2. Asian tiger mosquito

3. Giant Cockroach (eating bread crumbs)

Question of the day…Question of the day…

What would happen if there What would happen if there were no more insects?were no more insects?

1.1. They are an important energy source for many animals especially birds. They are an important energy source for many animals especially birds.

2.2. A lot of insects are "garbage collectors" Their job is to break down A lot of insects are "garbage collectors" Their job is to break down dead plants and animals in the recycling process.dead plants and animals in the recycling process.

3.3. Some insects like parasitic wasps control populations of others Some insects like parasitic wasps control populations of others organisms.organisms.

4.4. Without them we would have no fruits as they pollinate flowers.Without them we would have no fruits as they pollinate flowers.

5.5. They are important also because of problems they cause especially the They are important also because of problems they cause especially the spread of diseases like malaria.spread of diseases like malaria.