some perch near
freshwater wetlands
other soar high or low
over them
eagles, hawks falcons owls
bald eagles and
ospreys common
along coast of
alaska
buteos "soaring
hawks" and owls
hunt by
perching
northern harrier "marsh hawk"
Annotations:
low flying over prey
the water cycle
amphibians
amphibians
breath and
absorb water
through their
skin.
all amphibians
produce poisonous
skin secretions
keep the skin moist,
prevent bacteria,
molds, and diseases
from entering the
body.
frogs can see in
almost all
directions
start out their lives in water, breathing
through hills, and eventually develop
lungs, which enable them to exist on
land.
cold blooded: they
cannot form their own
body heat, they take it
from the enviroment
wood frogs life cycle
1. they begin their lives as tadpoles
2. mature tadpoles have legs
3. by mid summer the tadpoles has
developed into a young froglet
4. wood frogs freeze solid during the winter
5. frogs breed as soon as they thaw out
amplexus
male frog crasps to
the female fertlizing
eggs, as she lays
2000-3000 eggs in a
big jelly like
formation. they
hatch 4-8 days
depending on the
temp
water birds
water fowl
ducks
courtship rituals
different mates
every year
diving ducks (divers)
clams, insects,
crustaceans,
fish, deep
plants
large mashes and lakes
short pointed wings
Annotations:
because of their wings they need a long space to take off
can dive 150ft
inland, canvasback,
redhead, ring-necked, and
scaup
seaducks, eiders, soters,
long-tailed, harleguin,
goldeneyes, bufflehead, and
mergansers
puddle ducks (dabblers)
insects, crustaceans
on the surface of
water
broad wings
Annotations:
means they can take of quickly
small ponds
mallard, pintail,
green-winged
teal, american
wigeon,
gadwalls,
northern
shoveler
Annotations:
Mallard: most common type of duck in north america
geese, swans
mate for life
molt once
per year
Annotations:
molt means to replace feathers once a year.
adapted for
walking and
grazing on land
loons
Annotations:
they eat fish, hense the sharp bills and webbed feet
sit low in the water
sink straight down
they cary their
young on their
backs
webbed feet
and sharply
pointed bills
grebes
long skinny necks
dive forward
fresh water lakes,
ponds, and slow
moving rivers
lobed toes
carry young on back
western
pied-bills in
southearn
alaska
shore birds and
waiters
long legs,
shorts tails,
sharp pointed
wings
bristle-thighed curlew,
black turnstone, western
sandpiper, nest only in
alaskas wetlands
dowitchers, godwits,
plovers, turnstones,
sandpipers, curlews,
snipe, phalaropes, yellow
legs
seabirds
webbed
feet
sharp bills
gulls, terns,
and
cormorants
mammals
beavers
slow river current
enhance the
growing
conditions for
willows
remove the
competition of larger,
older trees
great moose habitat
the ponds they
make from
biulding dams,
are good
spawning
habitats
moose
submerge their heads to
obtain mineral-rich
aquatic plants that help
replace calcium lost
through nursing or antler
development
feed in ponds
river floodplains
provide abundance of
willows, which is a
favorite of moose
nuskrats
aquatic plants, roots, stems,
cattails,lilies, sedges, and
grass, mussels, shrimp, and
small fish
keep an air open in
the ice to access
their cache
otters and mink
forage on both
land and fresh and
salt water
mink prefer streams, ponds,
beaches and marshes
advantage of an abundance
of mice or hares
polar bears
classified as
marine mammals
wetlands and shores
are important
foraging grounds for
polar bears in
Summer when seals
are out of reach
find and eat bird
eggs, rodents, and
berries
fishes use of wetlands
nursery areas for many fish species
streams, rivers,
and riparian
wetlands produce
the millions of
salmon
riparian wetlands are ecpecailly
important to small fish like
sculpins, young freshwater fish,
and juvenile salmon.
riparian wetlands provide an
abundance of envertibrate, food,
and protection of strong currents
aquatic invertebrates
many aquatic invertebrates can be
used as an indicator of stream or
wetland health, as some are very
tolerant of pollution and low
oxygen conditions, and some can
only inhabit clear, well oxygenated
waters
grouped according to their ecosystem and feeding functions
some like dragonfly larvae
and the predacious diving
beetle are predators
consuming other
invertebrates, tiny fish and
even tadpoles
shredders: like some
stonefly larva, break
leaves and other
particulates greater then
1mm in size into smaller
peices
youngsters dominate:
macroinvertebrates in the
water are the larva form of
terrestrial animals, and are
very different looking from
their adult counterparts