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central eastern U.S. states with boundary outline
Chesapeake Bay Watershed boundary, USA
Chesapeake Bay Watershed boundary, USA
Chesapeake Bay Watershed boundary, USA

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

thumbnail image of a handout
thumbnail Katzner, et al. 2020 Publication Brief
thumbnail Katzner, et al. 2020 Publication Brief
thumbnail Katzner, et al. 2020 Publication Brief

Thumbnail image of plain language summary of:

map of North America with different colored area
red-tailed hawk population heat map
red-tailed hawk population heat map
red-tailed hawk population heat map

Figure 4 from Katzner, et. al., 2020

a fish is held flat with two hands over a wooden board with a measuring tape.
Adult Lahontan cutthroat trout
Adult Lahontan cutthroat trout
Adult Lahontan cutthroat trout

Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is a federally listed threatened species. Ninety-seven percent of their range are small headwater streams in the Great Basin of North America.

Lahontan cutthroat trout (Oncorhynchus clarkii henshawi) is a federally listed threatened species. Ninety-seven percent of their range are small headwater streams in the Great Basin of North America.

wind turbines in a dessert landscape
Wind turbines in California
Wind turbines in California
Wind turbines in California

Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.

Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.

a small shallow stream running over rocks through a forest with many large fallen trees covered in moss and ferns
Large wood along a forest stream
Large wood along a forest stream
Large wood along a forest stream

Fallen trees along a shallow stream in Gifford Pinchot National Forest, Washington

Fallen trees along a shallow stream in Gifford Pinchot National Forest, Washington

a stream runs through a clearing in a forest of evergreen trees, low leafy vegetation surrounds the stream
Forest Stream in Washington State
Forest Stream in Washington State
Forest Stream in Washington State

A stream runs through Gifford Pinchot National Forest near Packwood Lake in Washington State. Fallen trees create in-stream structure that is valuable habtiat for aquatic animals.

A stream runs through Gifford Pinchot National Forest near Packwood Lake in Washington State. Fallen trees create in-stream structure that is valuable habtiat for aquatic animals.

stream flowing through a valley surrounded by low vegetation and evergreen trees on a sunny day
Stream Flowing Through Gifford Pinchot National Forest
Stream Flowing Through Gifford Pinchot National Forest
Stream Flowing Through Gifford Pinchot National Forest

A stream flowing through Gifford Pinchot National Forest near Packwood Lake in Washington State.

A stream flowing through Gifford Pinchot National Forest near Packwood Lake in Washington State.

clear stream flowing over rocks through a sunny clearing on a mountainside, grass surrounding stream then forest
Mountain Stream in Washington State
Mountain Stream in Washington State
Mountain Stream in Washington State

A stream flowing through a rocky clearing in Gifford Pinchot National Forest near Packwood Lake in Washington State.

A stream flowing through a rocky clearing in Gifford Pinchot National Forest near Packwood Lake in Washington State.

man holding microphone
USGS Director Jim Reilly gives a speech
USGS Director Jim Reilly gives a speech
USGS Director Jim Reilly gives a speech

The USGS Forest and Rangeland Ecosystem Science Center (FRESC) held a groundbreaking ceremony on August 25, 2020 at the Idaho Water Science Center (IDWSC) in Boise, Idaho.

The USGS Forest and Rangeland Ecosystem Science Center (FRESC) held a groundbreaking ceremony on August 25, 2020 at the Idaho Water Science Center (IDWSC) in Boise, Idaho.

a person wearing a USGS t-shirt attaching a piece of equipment to a tree stump on the beach
Installing a bat acoustic detector on the Washington Coast
Installing a bat acoustic detector on the Washington Coast
Installing a bat acoustic detector on the Washington Coast

Rebecca McCaffery installing a bat acoustic detector on the outer coast of Washington state. Acoustic detectors are specialized microphones that capture the high frequency calls of bat species at night. They can be used to study bat distribution and occupancy patterns.

Rebecca McCaffery installing a bat acoustic detector on the outer coast of Washington state. Acoustic detectors are specialized microphones that capture the high frequency calls of bat species at night. They can be used to study bat distribution and occupancy patterns.

People wading in knee-high water
Dragonfly Mercury Project specimen collection in Glacier NP
Dragonfly Mercury Project specimen collection in Glacier NP
Dragonfly Mercury Project specimen collection in Glacier NP

Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.

Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.

A man and woman wearing cloth face coverings and setting up equipment
Setting up a bat acoustic monitoring station
Setting up a bat acoustic monitoring station
Setting up a bat acoustic monitoring station

White-nose syndrome has been detected in Washington. USGS scientist are helping the NPS design and evaluate bat sampling protocols for their Pacific Northwest parks.

White-nose syndrome has been detected in Washington. USGS scientist are helping the NPS design and evaluate bat sampling protocols for their Pacific Northwest parks.

a small stream running through a clearing in the forest surrounded by shrubs and grass
Excavated beaver pond five years post-construction
Excavated beaver pond five years post-construction
Excavated beaver pond five years post-construction

A remnant beaver pond that was excavated and deepened to provide aquatic habitat for amphibians including the Oregon spotted frog. Five years post-construction, the excavation project has resulted in more consistent water retention during drought in the Klamath Basin.

A remnant beaver pond that was excavated and deepened to provide aquatic habitat for amphibians including the Oregon spotted frog. Five years post-construction, the excavation project has resulted in more consistent water retention during drought in the Klamath Basin.

a waterfall with a rectangular stone fish ladder structure in the background
Lake Creek Falls Fish Ladder
Lake Creek Falls Fish Ladder
Lake Creek Falls Fish Ladder

Vertical drop of upper falls at Lake Creek Falls, Oregon, with entry to Denil-style fish ladder visible in background.

Vertical drop of upper falls at Lake Creek Falls, Oregon, with entry to Denil-style fish ladder visible in background.

a fish ladder with a waterfall in the background
Fish ladder at Lake Creek Falls, Oregon
Fish ladder at Lake Creek Falls, Oregon
Fish ladder at Lake Creek Falls, Oregon

Middle falls at Lake Creek Falls, consisting of bedrock sheet flow and a vertical drop. Entry to the Denil-style fish ladder is visible in foreground.

Middle falls at Lake Creek Falls, consisting of bedrock sheet flow and a vertical drop. Entry to the Denil-style fish ladder is visible in foreground.

rattlesnake held up in the air by snake tongs
Great Basin rattlesnake held by snake tongs
Great Basin rattlesnake held by snake tongs
Great Basin rattlesnake held by snake tongs

Great Basin rattlesnake (Crotalus oreganus lutosus) held by snake tongs. The Great Basin rattlesnake is the only venomous snake in Idaho.

Great Basin rattlesnake (Crotalus oreganus lutosus) held by snake tongs. The Great Basin rattlesnake is the only venomous snake in Idaho.

woman using a syringe to collect blood from a rattlesnake
Collecting a blood sample from a rattlesnake
Collecting a blood sample from a rattlesnake
Collecting a blood sample from a rattlesnake

Boise State University Master’s student Kristina Parker uses a syringe to collect blood from a Great Basin rattlesnake (Crotalus oreganus lutosus). The blood’s ribonucleic acid, or RNA will be analyzed to track genetic change in the snake from habitat disturbances. RNA, along with deoxyribonucleic acid – or DNA, are the molecules that carry genetic information.

Boise State University Master’s student Kristina Parker uses a syringe to collect blood from a Great Basin rattlesnake (Crotalus oreganus lutosus). The blood’s ribonucleic acid, or RNA will be analyzed to track genetic change in the snake from habitat disturbances. RNA, along with deoxyribonucleic acid – or DNA, are the molecules that carry genetic information.

two women use snake tongs to hold down a rattlesnake
Catching a rattlesnake with snake tongs
Catching a rattlesnake with snake tongs
Catching a rattlesnake with snake tongs

Boise State University Master’s student Kristina Parker and a volunteer use snake tongs to catch and hold down a rattlesnake.

Boise State University Master’s student Kristina Parker and a volunteer use snake tongs to catch and hold down a rattlesnake.

Woman carries a rattlesnake with its head in a tube in one hand and snake tongs in the other
Carrying a tubed rattlesnake
Carrying a tubed rattlesnake
Carrying a tubed rattlesnake

Boise State University Master’s student Kristina Parker carries a Great Basin rattlesnake (Crotalus oreganus lutosus). The snake’s head is enclosed in a plastic tube to allow her to safely handle it during the biological sample collection process.

Boise State University Master’s student Kristina Parker carries a Great Basin rattlesnake (Crotalus oreganus lutosus). The snake’s head is enclosed in a plastic tube to allow her to safely handle it during the biological sample collection process.

rattlesnake held by snake tongs with head in a plastic tube
Tubing a rattlesnake
Tubing a rattlesnake
Tubing a rattlesnake

A Great Basin rattlesnake (Crotalus oreganus lutosus) is coaxed into a plastic tube. This plastic tube allows researchers to safely handle the rattlesnake during biological sample collection.

A Great Basin rattlesnake (Crotalus oreganus lutosus) is coaxed into a plastic tube. This plastic tube allows researchers to safely handle the rattlesnake during biological sample collection.