Michigan Science Olympiad Entomology Event. Coaches Meeting Dec. 7, 2013

Transcription

1 Michigan Science Olympiad 2014 Entomology Event Coaches Meeting Dec. 7, 2013

2 Entomology 2014 Test Description Test Date: April 26, 2014 Location: TBD Duration: 50 minutes Supervisor: Amanda Lorenz, Graduate Student, Dept. of Entomology, MSU Team Composition: Up to 2 students Mechanics of the Test: timed stations, 2 minutes at each station, approximately 5 minutes at the end to go back to any stations. Scoring: The team with the highest number of correct answers will determine the winner. Selected ques8ons may be used as 8ebreakers.

3 Entomology 2014 Official Rules Students will be asked to identify insects and selected immature insects by order and family, answer questions about insects and use or construct a dichotomous key. Each team may bring one 8.5 x 11 two- sided page of information in any form from any source (e.g., notes, insect lists, etc.) and one commercially published resource that may be annotated, and tabbed (limit 3 words on tabs), and a hand lens or magnifying glass. The Supervisor will provide an answer sheet and if needed, dissecting microscopes.

4 Entomology 2014 Official Rules Teams will identify an insect s Order, Family or common name and answer a related question(s). Questions are limited to topics below and Insects are limited to the Official Insect List. Students will be able to see insect specimens or images (nymph or larva for some) with the unaided eye or a hand lens. For individual specimens, questions may be asked concerning the economic or health impact of the specimen upon the human race. Topics may include structure and function of internal and external anatomy, ecology, behavior, and history. One of the stations may involve students using or formulating a simple dichotomous key to identify insects.

5 Entomology 2014 Helpful Resources Official Insect List: Available at under B/C Events/Entomology Audubon Insect and Spider Guide Taxonomy CD (TXCD) and the Bio/Earth Sci CD (BECD) are available on the Official Science Olympiad Store or Website at Michigan State University Bug House; Contact Jennifer Verba Penn State Entomology Website

6 Entomology 2014 Helpful Resources Continued Texas A&M University Entomology Website identification/ University of Wisconsin Entomology Website University of Kentucky Entomology Website The Entomology Department at MSU will be opening its teaching lab in Late February/Early March to Science Olympiad Teams on designated weekends, more info coming soon.

7 Classification of Insects

8 Taxonomic Hierarchy Kingdom Animal Phylum Arthropoda Subphylum Atelocerata Class Hexapoda Subclass Insecta Order Suborder Infraorder Division Sec8on Superfamily (- oidea) Family (- idae) Subfamily (- inae) Tribe (- ini) Genus species (- binomial) subspecies (- trinomial)

9 Entomology 101: The Basics General Insect Body Plan: 3 Major Body Segments (Head, Thorax, Abdomen)

10 Entomology 101: The Basics Other External Structures of Major Importance: Antennae sensory structures Six legs attached to Compound Eyes sensory thorax Mouthparts feeding/sensory Two pairs of wings attached to thorax

11 Entomology 101: The Basics

12 Entomology 101: The Basics

13 Mouthparts chewing

14 Modified Mouthparts Diptera Sponging/Piercing- Sucking Hymenoptera Chewing/Lapping Lepidoptera Siphoning Hemiptera Piercing- Sucking

15 Types of Antennae setaceus moniliform clavate* capitate* filiform pec8nate serrate plumose aristate lamellate* [ * = clubbed ] stylate flabellate* geniculate (elbowed)

16 Thorax pro- meso- meta- notum scutum scutellum postnotum pleuron episternum epimeron sternum

17 Wings Lepidoptera Odonata BlaNodea Coleoptera Hemiptera- Heteroptera Diptera

18 Legs

19 Abdomen tergum tergites sternum sternites Ovipositor

20 Metamorphosis Metamorphosis: meta = change + morph = form change in the morphology during postembrionic development Simple Metamorphosis - egg, (ß pronymph à ), nymph, adult (incomplete, gradual metamorphosis) Ametabolous no metamorphosis (except Anamorphosis adding body segments at molts = Protura)) immatures and adults generally iden8cal except for size Hemimetabolous (now usually used in a broader sense to include Paurometabolous) incomplete metamorphosis nymphs (naiads) aqua8c, adults terrestrial immatures differ considerably from adults in appearance Paurometabolous (not as much used now) gradual metamorphosis nymphs and adults live in same habitat (terrestrial) immatures generally resemble adults with gradual increase in wing development and other structures Complete Metamorphosis egg, larva, pupa, adult Holometabolous immatures and adults oyen differ in habits and habitats immatures usually very different in appearance from adults with most transforma8onal changes occurring during the pupal stage Pupa acts as bridge from larval morphology/behavior to adult morphology/behavior - natural selecfon can act independently upon larval stages to allow for further differenfafon of larvae and adults

21 Hemimetabola Holometabola

22 general larval body (Holometabola) head thorax abdomen T1 T2 T3 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 Adults mostly covered with sclero8zed plates (tergites, pleurites, sternites), with membranous areas not very evident except between abdominal plates eyes antennae mandibles maxillae labium T1 T1 T2 T3 T2 T3 A1 A1 A2 A2 A3 A3 A4 A5 A4 A6 A5 A7 A8 A6 A7 A9 A10 A8 spiracles Larval Holometabola mostly membranous except for head capsule, sclero8zed plates broken into small pieces or absent thoracic legs +/- coxa, trochanter, femur, Fbia, tarsus, claws A9 A10

23 Dichotomous Keys

24 Important Tips to Remember Live insects and specimens often look very different in terms of coloration and texture. Make sure students are familiar with the look of preserved specimens. Observing insect collections is a great way to study and learn about insect classification and morphology. Collections are housed in many different places, including local colleges and universities, local museums, schools, and some zoos. Flashcards are great for studying taxonomy. Powerpoint slides for each taxon.

25 General Study Tips Prepare a Study Binder The most effective resources are the ones produced by the students. The process of producing the resources is a major learning tool. Have a copy of the rules in your binder Have a copy of the lists (insects, birds, fossils if applicable) in your Binder Prepare and organize materials by major topic divisions. Place materials from many different sources into your topic divisions Reduce the size of pictures where possible to get more information on a page. Color code information to help you locate or emphasize key items. Put pages in sheet protectors two per protector to save space. Use tabs to separate sections. Label tabs so items can be located with ease.

26 Questions?