UNDERC education and research programs
Bay
Long
Bergner
• 35 lakes and bogs• 7 streams• many forest and
wetland habitats
GLOBAL BIOMES• AQUATIC BIOMES
– RIVERS– LAKES– WETLANDS– ESTUARIES– SALT MARSHES / MANGROVES– TIDAL ZONES– CORAL REEFS– OCEANS
The Hydrologic Cycle
• Over 71% of the earth’s surface is covered by water:– Oceans contain 97%.– Polar ice caps and glaciers contain 2%.– Freshwater in lakes, streams, and ground
water make up less than 1%.
Hydrologic cycle
Zonation in the Littoral Areaand Shore
Shrub & Trees
Mixed herbaceous
Grass stage
Shallow wateremergents
Deep wateremergents
Floatingplants
Submerged plants
Open waterphytoplankton
Vertical Zonation in Stratified Lakes
Limnetic zone
Profundal zone
Littoralzone
LightCompensation
Level
Horizontal Lake Zones and their Biological Communities
psammon
macrophytes
benthos
During Summer StratificationLakes Develop Distinct Layers
Stratified layers may develop differences in both oxygen and temperature.
Lake Zones in Relation to O2 and CO2
Littoral
Sublittoral
Profundal
O2
CO2
Limnetic
Epilimnion
Metalimnion
Hypolimnion
Bergner Lake is “Oligotrophic”
Late Successional Eutrophic Pond
Aquatic (Hydrarch) Succession
Marsh(Eutrophic)
Bog(Dystrophic)
OligotrophicLake
Mesotrophic to Eutrophic
Lake
Terrestrial
• Lake conditions
• Littoral vegetation OR
Bog conditions (raised peat bog, Sphagnum overstory)
• Terrestrial habitat
Sphagnum
Dystrophic “Bog” Habitats are common at UNDERC
lagg lagg
peat open water
false sediments
Forest Service Bog one of many
Dystrophic Lakes at UNDERC
Crampton Lake
Brown Lake
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
River Continuum Concept
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Class projects -designdataanalysis
Location:
Peter Lake
Carl Von Ende Sampling for Chaoborus at Ed’s Bog
“Big Bag” (Mesocosm) Experiment
Mesocosms in Peter Lake
Long Lake divided Control of lake algae by regulating fishes
Current Research at UNDERC(Focus on natural processes in undisturbed environments)
• Biological indicators of water quality and environmental change
• Biological regulation of aquatic productivity• Global environmental change• Aquatic-terrestrial habitat interactions• Naturally acidic aquatic environments• Biting arthropods and their transmitted diseases• Introduced crayfish
Long
NEON is coming!!!
NEON’s Mission
• The NEON mission is to :– discover and understand the fundamental
ecological principles that govern the responses of the biosphere.
– provide the capacity to forecast future states of ecological systems.
NEON Climate Domains
Drivers and Responses
The changing landscape
Class outline
• Mon am - lake lecture• Mon am - field equipment demo• Mon pm - lake sampling• Mon pm - invert / zoop id
• Tues am - bog lecture• Tues am - finish lake samples / limno summary• Tues pm - bog sampling• Tues pm - invert / zoop id / limno summary
Class outline
• Wed am - stream lecture• Wed pm - stream sampling• Wed pm - invert / fish id
• Thurs am - Discussion of class projects
• Thurs-Sat - data collection, analysis and ppt– Sun evening - group presentations– Written reports due (by email July 20)
CLASS PROJECT
4 teams:
Possible topics: 1. Oligotrophic vs eutrophic lakes2. Oligotrophic lakes vs bogs3. Zooplankton behavior w/ & w/out fish4. Diurnal behavior in lakes vs streams
Individual research projectsfish radio-telemetry (2 students)
1. Habitat use by musky/pike2. Importance of streams
General Methods
Radio/Acoustic Telemetry
• Radio/Acoustic Transmitters
• Remote Hydrophones
Capture & Tagging
Crayfish decomposition or tadpole ecosystem impacts