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 Area and Shore Shrub & Trees Mixed herbaceous Grass stage Shallow water emergents Deep water emergents Floating plants Submerged plants Open water phytoplankton

Vertical Zonation in Stratified Lakes Limnetic zone Profundal zone Littoral zone Light Compensation Level

Horizontal Lake Zones and their Biological Communities psammon macrophytes benthos

During Summer Stratification Lakes Develop Distinct Layers Stratified layers may develop differences in both oxygen and temperature.

Lake Zones in Relation to O 2 and CO 2 Littoral Sublittoral Profundal O2O2 CO 2 Limnetic Epilimnion Metalimnion Hypolimnion

Bergner Lake is “Oligotrophic”

Late Successional Eutrophic Pond

Aquatic (Hydrarch) Succession Marsh (Eutrophic) Bog (Dystrophic) Oligotrophic Lake 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 peat open water false sediments

Forest Service Bog one of many Dystrophic Lakes at UNDERC

Crampton Lake

Brown Lake

River Continuum Concept

Class projects - design data analysis

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 July 20)

CLASS PROJECT 4 teams: Possible topics: 1.Oligotrophic vs eutrophic lakes 2.Oligotrophic lakes vs bogs 3.Zooplankton behavior w/ & w/out fish 4.Diurnal behavior in lakes vs streams

Individual research projects fish radio-telemetry (2 students) 1.Habitat use by musky/pike 2.Importance of streams

General Methods Radio/Acoustic Telemetry Radio/Acoustic Transmitters Remote Hydrophones

Capture & Tagging

Crayfish decomposition or tadpole ecosystem impacts