Flashcards in Ecology Part II Deck (541)
Loading flashcards...
1
Major communities
Aquatic
Terrestrial
2
Aquatic communities
Marine
Freshwater
3
Marine communities
estuaries, intertidal, sub-tidal kelp beds, pelagic, deep sea, coral reefs
4
Terrestrial communities
tundra, temperate coniferous forests, temperate deciduous forests, grasslands, deserts, tropical forests
5
temperate coniferous forests
Boreal/Taiga
6
Estuaries are
partially enclosed body of water where freshwater flows into the ocean and mixes with salt water
7
Estuaries have
variable salinity, pH, sediments, nutrients, temperature
large # niches, biodiversity, productivity
8
important estuary ecology
major stopover for migratory birds throughout world
ex. fraser estuary
9
Different types of tides
MHWS, MHWN, MLWN, MLWS
Mean high/low water neap/spring
10
smaller high/low tides
neap tide
11
larger high/low tides
spring tides
12
Emersion curve
MHWS, MHWN, MLWN, MLWS (ft) vs. % exposure to air (0-100)
MLWS- pretty much 0%
curve tends towards 100 towards MHWS
13
Subtidal kelp bed ecology
high PP on planet
physical protection to shoreline communities
foraging/shelter for large # species
14
Types of benthic communities
Hot vents
Glass Sponge reefs
Deep water coral reefs (bioherms)
15
Arctic marine communities
frozen ocean surrounded by land
~4000m depth, ~3m ice
upper 15m low salinity
layering of Atl./Pac. water
high summer plankton, cod, seals
16
Antarctic communities
frozen continent surrounded by ocean
~98% ice up to 2km thick
mountainous- up4500m
low diversity- bacteria, lichen, penguins
ocean high PP and diversity
17
lake classifications
oligotrophic
dysotrophic
mesotrophic
eutrophic
18
oligotrophic
clear water - low productivity
19
dystrophic
stained lakes - low productivity
20
mesotrophic
intermediate productivity
21
eutrophic
high productivity
22
lake stratification
separation of lakes into three layers- Epilimnion, Metalimnion, Hypolimnion
due to density change with temperature
23
epilimnion
top of the lake
24
metalimnion
thermocline
middle layer- may change depth throughout the day
25
hypolimnion
bottom layer
26
dimictic lake
lake water turns over during the spring and the fall due to the higher density colder water and of 4ºC water, lower density of ice and warm water
27
Tundra characteristics
3-6mnths dark, north America, north Europe/Asia ice/snow/permafrost
surface soil .5m thaws in summer
3 strata
28
tundra strata
soild
ground
low shrubs
29
tundra ecology
cold-hardy plants
aquatic/terrestrial insects
shorebirds, waterfowl, seasonal
hare, fox, wolves, caribou, grizz, polar bear
30
