Old-growth forest

Jeff Diez presents about a moss component of the species interaction study

Posy Busby, Jeff Diez, Abbey Neat, Madison Sutton present on the reciprocal transplant experiment

Joe LaManna, Matt Betts, Marie Tosa review a handout

Matt Betts, Suzanne Remillard, Marie Tosa review a handout

Presentations in the forest, about species interactions

Jeff Diez presents about a moss component of the species interaction study.Note moss transplant plot.

Jeff Diez presents about a moss component of the species interaction study

Jeff Diez presents about a moss component of the species interaction study

Matt Betts

Brooke Penaluna with a rough skinned newt

Presentations along Lookout Creek

Presentations along Lookout Creek

Presentations along Lookout Creek

Ivan Arismendi presents on long-term studies on fish and salamanders

Presentations along Lookout Creek

Graduate student Tatiana Latorre demonstrates a trap used to sample aquatic insects

Graduate student Tatiana Latorre shows aquatic insects to a panelist

Graduate student Zachary Perry speaks about hyrology and flow paths of water

Graduate student Zachary Perry speaks about hyrology and flow paths of water

Mark Schulze gives an overview of the site

Dave Bell presents about landscape disturbances like fire and heat

Dave Bell presents about landscape disturbances like fire and heat

Catalina Segura presents about watersheds

Posy Busby, Brooke Penaluna, Suzanne Remillard

Presenters at the landing in Watershed 1

Graduate student Cole Doolittle presents about wildfire and vegetation

Sherri Johnson speaks about watersheds and aquatic chemistry

Presenters at the landing in Watershed 1

Michael Nelson presents about conservation ethics

Postdoc Claire Rapp presents about decision making

Pam Sullivan presents about hydrology and chemistry

Matt Betts and Michael Nelson, current and past Lead PIs of the Andrews Forest LTER program

Mark Schulze presents at the Discovery Tree

Julia Jones presents about long-term trends in data

Chris Still speaks about canopy ecology and heat stress to trees

Graduate student Kyle Gervers presents about leaf endophytes

Graduate student Nina Ferrari presents about her work on birds in the forest canopy

Presentations at the Discovery Tree

Graduate student Nina Ferrari presents about her work on birds in the forest canopy

Chris Still speaks about canopy ecology and heat stress to trees

Fred Swanson shares about the science-arts-humanities connections

Fred Swanson shares about the science-arts-humanities connections

Spring flows of Lookout Creek

Lookout Creek

Lookout Creek

Graduate student Jaimie Ortega prepares to take water samples from Lookout Creek

Graduate student Jaimie Ortega submerges a sample bottle into the creek to collect a water sample

Graduate student Jaimie Ortega fills a sampling container with water from Lookout Creek

Graduate student Jaimie Ortega fills a sampling container with water from Lookout Creek

Sampling gear

Water sample containers

Graduate student Jaimie Ortega prepares to take water samples from Lookout Creek

Graduate student Jamie Ortega records sample data

Graduate student Jamie Ortega records sample data

Lookout Creek

Graduate student Jaimie Ortega at Lookout Creek

Arif Jan and Ivan Arismendi sample for fish and salamanders in Mack Creek

Arif Jan samples for fish and salamanders in Mack Creek

Arif Jan samples for fish and salamanders in Mack Creek

Christina Linkem, Emilee Mowlds, and Andres Olivos sample fish and salamanders in Mack Creek

Christina Linkem, Emilee Mowlds, and Andres Olivos sample fish and salamanders in Mack Creek

Sometimes the salamanders wriggle under rocks and need to be coaxed out. Christina Linkem doesn't let this salamander escape!

Emilee Mowlds and Andres Olivos electroshocking and netting fish and salamanders

The research team moves together, electroshocking and netting fish as they move forward

A tagged piece of wood, part of a long-term study on wood in streams

The research team moves together, electroshocking and netting fish as they move forward

The crew records length and weight of the captured fish and salamanders and inserts a PIT tag in the larger animals

Small PIT tags are insterted into larger fish and salamanders, allowing the researchers to track the animal's growth and movement over time

Measuring body length of a cutthroat trout

A fish is scanned to check its PIT tag

Andres Olivos measures the stream width

Arif Jan in Mack Creek at the HJ Andrews Experimental Forest

Andres Olivos and Arif Jan measure the pool size within the Mack Creek

Andres Olivos and Arif Jan measure the pool size within the Mack Creek

Arif Jan measures the depth of a pool in Mack Creek

Andres Olivos and Arif Jan measure the pool size within the Mack Creek

Andres Olivos and Arif Jan measure the pool size within the Mack Creek

Andres Olivos uses a laser tool to measure the length of a reach of Mack Creek

Research netting and sample reaches in Mack Creek

A pool in Mack Creek

Tagged tree in Mack Creek old growth stand

Matt Betts and Ava Betts in Mack Creek old growth stand

Mack Creek old growth stand

The OSU Stream Team readies for a day of field work on the Aquatic Vertebrate Population Study in Mack Creek

The OSU Stream Team sets off for Mack Creek

laying a net across Mack Creek

nets are used for catching fish and salamanders

nets are used for catching fish and salamanders

An electroshocker is used to temporarily stun fish and salamanders so they can be captured and measured

An electroshocker is used to temporarily stun fish and salamanders so they can be captured and measured

Dr. Ivan Arismendi readies the electroshocker

This little pool of water in Mack Creek is home to cutthroat trout and pacific giant salamanders

This little pool of water in Mack Creek is home to cutthroat trout and pacific giant salamanders

Netting is placed across the stream to keep fish and salamanders from escaping the study section of stream

Netting is placed across the stream to keep fish and salamanders from escaping the study section of stream

Mack Creek

The research team moves as an orchestrated group, electroshocking and netting fish as they move forward

electroshocking and netting fish and salamanders

electroshocking and netting fish and salamanders

electroshocking and netting fish and salamanders

electroshocking and netting fish and salamanders

Graduate student Emilee Mowlds nets fish and salamanders in Mack Creek

Christina Linkem and Ivan Arismendi netting fish in Mack Creek

Ava Betts, Emily Mowlds, Christina Linkem, and Ivan Arismendi electroshocking and netting fish

Dave Leer , Ivan Arismendi, Emily Mowlds, and Christina Linkem electroshock and net in Mack Creek

Ivan Arismendi and Christina Linkem work together to net fish out of Mack Creek

The research team moves as an orchestrated group, electroshocking and netting fish as they move forward

Researchers have to move quickly and carefully to catch salamanders

Christina Linkem is at the ready, watching for a flash of fish or salamander that is temporarily stunned by the elecroshocker

Ivan Arismendi uses the electroshocker

Ivan Arismendi uses the electroshocker

Christina Linkem is at the ready, watching for a flash of fish or salamander

Emily Mowlds transfers fish or salamanders from the net into a bucket

Christina Linkem is at the ready, watching for a fish or salamander

Fish and salamanders are moved into buckets to await being measured. After being measured, the animals are released back into the same section of stream from where they were captured.

Coastal giant salamander (terrestrial form)

Coastal giant salamander (terrestrial form)

Mike Manning records data on species, stretch of stream, weight of animal, PIT tag number, and any comments, for each fish or salamander captured

Data are recorded on species, stretch of stream, weight of animal, PIT tag number, and any comments, for each fish or salamander captured

Measuring body length of a cutthroat trout

Measuring body length of a pacific giant salamander

The crew records length and weight of the captured fish and salamanders and inserts a PIT tag in the larger animals

The crew records length and weight of the captured fish and salamanders and inserts a PIT tag in the larger animals

electroshocking and netting fish and salamanders

electroshocking and netting fish and salamanders

Emilee Mowlds electroshocking and netting fish and salamanders

Christina Linkem scans the stream for fish or salamanders

A tagged piece of wood, part of a long-term study on wood in streams

Arif Jan and Ivan Arismendi sample for fish and salamanders in Mack Creek

Arif Jan and Ivan Arismendi sample for fish and salamanders in Mack Creek

Arif Jan and Ivan Arismendi sample for fish and salamanders in Mack Creek

A tagged piece of wood, part of a long-term study on wood in streams

Arif Jan and Ivan Arismendi sample for fish and salamanders in Mack Creek

A Surber sampler is used to collect stream invertebrates

The Surber sample cup is rinsed through a sieve to capture any small aquatic invertebrates

Invertebrates and detrital samples are scooped from the sieve and placed into the sample bag

Researchers in Watershed 2, sampling for stream invertebrates

The stream in Watershed 2

The stream in Watershed 2

Researchers in Watershed 2, sampling for stream invertebrates

Researchers in Watershed 2, sampling for stream invertebrates

Bill Gerth uses his hand to gently disturb the stream bottom and dislodge stream invertebrates as the water flows into the Surber net

Streamwater flows into the Surber sampler which catches stream invertebrates

OSU Undergraduate student Meagan White inspects the sample in a sieve

The Surber sample cup is emptied into a sieve

The Surber sample cup is emptied into a sieve

All sample materials from the sieve are washed into the sample bag for preservation. Samples are sorted and insects identified at a later time.

Meagan White adds ethanol to the sample bag before sealing it

Sealing the preserved sample