ENVS 241 Lab Practical

Acer negundo

Acer saccharum

Acer rubrum

Cornus florida

Fraxinus americana

Platanus occidentalis

Carya tomentosa

Juglans nigra

Nyssa sylvatica

Prunus serotina

Sassafras albidum

Oxydendrum arboreum

Liriodendron tulipifera

Liquidambar styraciflua

Quercus alba

Quercus rubra

Quercus velutina

Ephemeroptera: mayfly, P-S, Incomplete = 3 tails

Plecoptera: stonefly, P-S, Incomplete = 2 tails

Tricoptera: caddisfly, P-S, Complete = Larvae cylindrical

Coleoptera: water penny (P-S)/beetle(P-T), Complete

Megaloptera: dobsonfly, P-T, Complete = large

Gastropoda: P-S

Gastropoda: Pouch snails, P-T = left

Odonata: dragonflies/damselflies, moderately sensitive, Incomplete

Decapoda: crayfish, moderately sensitive,

Diptera: fly/mosquito/midge, Complete

Oligochaeta: worms = segmented

Measure DBH of tree

diameter at breast height, using the larger side of the tape

Similarities/differences between mosses and lichens

lichens are not a plant, mosses are. They are both poikilohydric (can rehydrate after desiccation)

Apothecia

crustose

foliose

frutiose

Four types of twig scars

1. leaf scar (where leaf was)

2. bundle scars (where vein was connected)

3. stipule scar (horizontal scar above leaf scar)

4. bud scale scars (terminal bud falling off)

Leaf scar

Bundle scar

Stipule scar

bud scale scar

Imbricate vs. valvate scales

Valvate: two bud scales meeting in the middle

Imbricate: several overlapping bud scales

Types of pith

a. Continuous

b. Diaphragmed

c. Chambered

d. Hollow

Continuous

Diaphragmed

Chambered

Hollow

Years of growth on twig

Terminal bud

Lateral bud

Parts of insect

a. Head

b. thorax (3 pairs of legs)

c. Abdomen

Ocelli

halteres

elytra

Mouthparts

Chewing (Mandibles), Sucking/piercing (Coiled proboscis/Sponging-sucking)

Metamorphosis

a. Complete = goes through different looking/environmental stages

b. Incomplete = same look/environment just getting bigger

Hymenoptera: bees/wasps/ants, chewing, Complete, (ocelli)

Diptera: flies, sucking, Complete, (halteres)

Lepidoptera: butterflies/moths, sucking, Complete

Coleoptera: beetles, chewing, Complete, (elytra)

Orthoptera: grasshoppers/crickets/katydids, Incomplete

Odonata: dragonflies/damselflies, Incomplete

Homoptera: hoppers/aphids/scales/cicadas, sucking, Incomplete

Heteroptera: true bugs, sucking, Incomplete

mantodea: mantis, chewing, Incomplete

scutella

triangle behind head in heteroptera