Final Flashcards
River and Streams are part of the _______ system.
Lotic System
most important physical Feature
Current
Begining of a stream
headwaters
small streams have?
cold water and swift currents- not strong current
organic material that falls in water
allochthonous
energy that comes from the sun
autochthonous
Large Rivers have
warm water, slower strong currents
Factors for dune formation
Abundant sand
Consistent wind
water level fluctuation
vegetation
Dune types
Linear
parabolic
perched
high dunes atop a bluff
perched
low dunes, often parallel to shore
linear
U shaped depressions in stabilized dunes
parabolic
Dune Life Zones
Beach
For-dune
Inter-dunal Wetland
Back-dune forest
Dynamic and formidable habitat
Beach
Organisms found on beach?
s
First linear dune
foredune
how is the foredune formed
stabilized by plants
Foredune plants
BGP Milk the hare for bberry its poison paccoon you LH Tansy Beach Grass Beach pea Milkweed Harebell bearberry poison ivy paccoon
Formed by water fluctuations
interdunal wetland
Trees of the Backdune forest
S.Mich Oak-hickory
N. Mich N.Hardwood & conifer
Threats to the dune
Exotic species Baby’s breath & spotted knapweed
More exotics (12)
Eurasian Water Milfoil Spiny Waterflea Rusty Crayfish Round Goby Phragmites (Common Reed Grass) Alewife Black-grass Rush Freshwater Jellyfish Exotic Bur Reed
Sea Lamprey
Opening of wetland canal
attack lake trout
Weirs catch adults
Chem treat for young
Zebra Mussel
Bissel Threads
Devastated native clams
Shells are a public heath issue
Purple Loosestrife
Mechanical Removal
biological control- beetles and weevels
Beach Animals
gulls, sanderlings, sandpipers, and plovers flies, tiger beetles, and other insects
bottom dwelling organisms
benthos
attach or cling to substrates
periphyton
small creatures in the water column
plankton
Plankton autotrophes
phytoplankton
plankton heterotrophs
zooplankton
Large swimming organism
nekton
live at surface…on top or hanging underneath
neuston
Ponds and Lakes
lentic stystem
What is Thermal Stratification
the temperature density relationship of water produces a pattern of temperature change with a changing depth
Summer Stagnation Levels
Epilimanion 20-24
Thermocline
Hypolimnion 3-5
Dimictic
lakes with two to overturns
Lake zones
Littoral
Limnetic
Profundal
Subdivisions of the littoral zone
Emergent plant zone
Floating leaf zone
Submergent plant zone
Lake Categories
Oligotrophic
Mesotrophic
Eutrophic
nutrient poor lakes with deep clear & cold waters
oligotrophic
intermediate in nutrients levels and the amount of productivity
Mesotrophice
nutrient rich lakes with warm shallow and murky waters
Eutrophic
5 wetland types
Salt Marsh Mangrove Swamp lacustrine riverine palustrine
Emergents
Cattail
blue-flag Iris
Joe pye weed
rushes and reeds
Floating plants
waterlilies
pondlily
lilypads
duckweed
submergents
pondweeds
Blue Heron colony
rookeries
monogamy
even sex ratio
polygamy
uneven sex ratio
polugyny
on male several females
polyandry
one female many males (spotted sandpiper)
Shallow basins of water with shore to shore vegetration
Marsh