heath blackmon evolution and diversity of coleoptera chromosome evolution sex determination...
TRANSCRIPT
Heath Blackmon
Evolution and Diversity of ColeopteraChromosome Evolution
Sex Determination Evolution
Speciation / Population Subdivision / Deme Sizes
Office ERB 450
Office Hours in LS129
Monday 12:30-2:00
Wednesday 5:00-6:30
Introductions
Entomology Lab
Syllabus
Collecting & Curation
Dichotomous Keys
Course Objectives● Learn and demonstrate proper
methods of collecting and preserving insects.
● Learn and demonstrate proper use of a dichotomous key to identify specimens.
Supplies● No lab manual is required.
Taxonomic keys and info sheets will be supplied or emailed to you.
● Supplies such as pins and collection boxes will be provided as well.
Attendance● Attendance is mandatory I will
take roll.● If you must miss a lab● E-mail me in advance and you
can then attend the other lab section.
Grading● Lab is worth 200 points 1/3 of
your overall grade in the course● Lab Practical 75 points● Quiz 25 points● Insect Collection 100 points
Academic Integrity● Don't Cheat● Don't buy a collection on Ebay● Cheating● buying a collection
● copying on a quiz or exam
● turning in work that is not your own
● Any of these will result in a zero for the assignment and you will be reported to the department.
Who are these guys and what do they have in common?
Charles Darwin Henry Walter BatesAlfred Russel Wallace
Evolution by Natural Selection5 years on the Beagle
Natural Selection / Biogeography / Warning Coloration4 years in the Amazon-shipwreck8 years in the Malay Archipelago
Mimicry11 years in the Amazon
Charles Darwin Henry Walter BatesAlfred Russel Wallace
Why do we build insect collections?
Why do we build insect collections?
● Document biodiversity● Document changes in
ecosystems● Alpha Taxonomy● Forensics● Fun
Basic Collecting Equipment
Specialized Equipment
● Many collecting methods take advantage of insect behavior.
Curating Equipment● Insect Pins● Forceps● Pinning Block● Point Punch● Mounting / Spreading Board
Labeling Specimens
USA.TX.Tarrant Co. ArlingtonRiver Legacy Park. 32.78°N 97.12°WMalaise net 25 meters N of pondHeath L. Blackmon 21 May 2010
Labeling Specimens
Collection Maintenance
PestsMold
Dichotomous Keys Identify Organisms
Evolutionary Classification vs. Dichotomous Key
Pairs of contrasting descriptions
After each description you are directed to a new couplet or the organism is identified
TodayEach of you will properly pin two large insects and point mount four small insectsLarge Insects•1 Pin the insect•2 Position at correct height•3 arrange the appendagesSmall Insect•1 Prepare points on pins•2 Bend point to match specimen•3 Glue Specimen
Next Week
Non hexapod arthropod orders