Riverwalk field
trip
Wisconsinan glaciation.
Glacial retreat
.
Chicago Wilderness
.
Leech
damselfly
larva
(
Order
Odonata
)
mayfly
larva
(Order Ephemeroptera
)
Caddisfly
larva
(Order Trichoptera)
Aquatic sowbug
(Order Isopoda
)
Mallard Ducks
Mourning Dove
Black-capped Chickadee
Poecile atricapillus
Yellow-bellied sapsucker
holes in
Pinus nigra
;
male cones
White Pine
Pinus strobus
seed
Spruce
stomata lines
Ash flower galls
on male flowers, caused by a
mite
, females overwinter in
Fraxinus
bark crevices and bud scales: dioecious
Box Elder
(
Acer negundo
)
Eastern Sycamore
(Platanus occidentalis
)
Kentucky Coffee Tree
Gymnocladus dioicus
- what does this mean?
Honey Locust
Gleditsia triacanthos
Lichen:
Candelaria concolor
,
Parmelia sulcata
,
Physcia millegrana
.
©
Copyleft
Peter Chen