DOC PREVIEW
TAMU ENTO 322 - Taxonomy
Type Lecture Note
Pages 4

This preview shows page 1 out of 4 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 4 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 4 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

A. Basic human nature to name things: It is basic human nature to want order and catalogue thingsB. Definition of taxonomy1. Taxonomy is the science of naming, classifying and identifying organisms. There are rules associated with the naming of organisms2. Carl Linnaeus (1758) – responsible for the binomial system (Systema Naturae); described 2,000 species of insects; two part name is the Genus (always capitalized) and the species (never capitalized) and either italicized or underlinedA. Comparison – identification of organism is usually done by comparing them to a known specimen or a pictureB. Dichotomous keys – keys (tools) are based on couplets through which decisions are made to identify the specimen. Keys are dichotomous due to the fact that a dichotomy is presented at each coupletENTO 322 1st Edition Lecture 3 Outline of Last Lecture I. IntroductionII. ConceptsIII. The Scientific MethodOutline of Current LectureI. Taxonomy II. Taxonomic LevelsIII. Methods of Identifying InsectsCurrent LectureI. TaxonomyA. Basic human nature to name things: It is basic human nature to want order and catalogue thingsB. Definition of taxonomy1. Taxonomy is the science of naming, classifying and identifying organisms. There are rules associated with the naming of organisms 2. Carl Linnaeus (1758) – responsible for the binomial system (Systema Naturae); described 2,000 species of insects; two part name is the Genus (always capitalized) and the species (never capitalized) and either italicized orunderlinedII. Taxonomic LevelsA. Domainsi. Eubacteria – bacteria1. Unicellular2. Cell membrane3. Simple DNAii. Archaebacteria1. Complex DNA2. Single cell3. Cell membraneiii. Eukaryota – insects1. All of the above plus a nucleus & they are multicellular These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.B. Kingdomsi. Animalia – insects1. Multicellular with cell membranes2. Defined single nucleus3. heterotrophsii. Plantae1. Multicellular with cell walls (cellulose)2. Defined single nucleus3. Autotrophs with chlorophylliii. Fungi1. Multicellular with cell walls2. Defined multiple nuclei (coenocytic)3. Heterotrophs iv. Protista1. Single cells with cell membrane2. Defined single nucleus3. Heterotrophs4. Some disease agents (Malaria)C. Phylum: Arthropoda – insectsi. Characteristics of Arthropoda1. Segmented body (Metamerism)2. Exoskeletons3. Jointed appendages – the way the legs are attached to the body4. Dorsal heart – open circulation/splash system5. Bilaterally symmetrical6. Ventral nerve cord7. Asexual/sexual reproductionD. Subphylumi. Chelicerata1. Spiders2. Mites3. Ticksii. Crustacea1. Shrimp2. Isopodsiii. Atelocerata1. Insects2. Centipedes3. Millipedes E. Classes (must know for exams)i. Chilopoda – centipedes1. Head (1 pair of antennae)2. Body (trunk)3. 1 pair of legs per body segment4. poison claw – first pair of legs5. no wings6. simple eyes7. preserved in alcoholii. Diplopoda – millipedes1. Head (1 pair of antennae)2. Body (trunk)3. 2 pairs of legs per body segment4. no wings5. simple eyes6. non-toxic7. herbivores8. preserved in alcoholiii. Malacostraca – shrimp, pill bugs, crab, lobster, crayfish1. Head (head + thorax = cephalothorax)2. Abdomen3. 5+ pairs of appendages4. 2 pairs of antennae5. Gills (aquatic/semi-aquatic)6. No wings7. Preserved in alcohol8. Ordersa. Isopoda – pill bugsi. Agriculture pestsb. Decapoda – lobsters, shrimp, crabs iv. Arachnida – spiders, scorpions, ticks, mites 1. Cephalothorax – compressed head and thorax2. Abdomen3. 8 legs in adults4. no antennae5. no wings6. preserved in alcoholv. Hexapoda – insects1. Head (1 pair of antennae)2. Thoraxa. 3 pairs of legs (6 legs)b. 1 or 2 pairs of wings3. abdomenF. Ordersi. There are 31 but must know 24 for this classIII. Methods of Identifying InsectsA. Comparison – identification of organism is usually done by comparing them to a known specimen or a picture B. Dichotomous keys – keys (tools) are based on couplets through which decisions are made to identify the specimen. Keys are dichotomous due to the fact that a dichotomy is presented at each


View Full Document

TAMU ENTO 322 - Taxonomy

Type: Lecture Note
Pages: 4
Download Taxonomy
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Taxonomy and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Taxonomy 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?