USGS scientist observing an osprey nest. Use of a mirror pole allows the researcher to observe the nest from a boat without disturbing the nest. The image was taken during a USGS study of osprey (Pandion haliaetus) and their prey (menhaden (Brevoortia tyrannus), and other species of fish) in the middle and lower Chesapeake Bay and its tributaries.
Barnett Rattner, Ph.D.
Dr. Barnett Rattner is an ecotoxicologist at the Eastern Ecological Science Center in Laurel, MD.
He conducts hypothesis-driven laboratory and field investigations, risk assessments and scholarly evaluations on the toxicity of legacy and contemporary pollutants (industrial contaminants, metals, pesticides, petroleum crude oil) to wildlife and the environment. His current focus is on exposure and adverse effects of anticoagulant rodenticides, flame retardants and pharmaceuticals, comparative toxicology, non-target secondary poisoning associated with rodenticides, alternative testing methods, and screening-level risk assessments. Dr. Rattner actively represents the DOI as a member of the Interagency Coordinating Committee on the Validation of Alternative Methods, and serves as a special consultant to the Fish and Wildlife Service on issues related to nontoxic shot used in hunt nontoxic shot used in hunt waterfowl.
Active Projects:
- Development of data and models to evaluate the hazard and risk of anticoagulant rodenticides to non-target raptorial species
- Absorption, distribution, metabolism, elimination and toxicity of neonicotinoids in seed-eating birds
- Harmful algal blooms and bird die-offs in the Chesapeake Bay: A potential link?
- Contaminant exposure and potential reproductive effects in ospreys nesting in Chesapeake and Delaware Bay
- Contaminant-related activities and synoptic reviews in support of client agencies in the Department of the Interior
- Technical assistance to the Fish and Wildlife Service on alternative shot
Accomplishments:
- Authored over 150 publications, co-edited three books (Handbook of Ecotoxicology, Ecotoxicology of Wild Mammals, Anticoagulant Rodenticides and Wildlife), and made over 175 presentations at scientific meetings, workshops and symposia.
- Compiled two widely used internet-accessible ecotoxicological databases (Contaminant Exposure and Effects—Terrestrial Vertebrates database, Biological and Ecotoxicological Characteristics of Terrestrial Vertebrate Species Residing in Estuaries).
- Serves as Terrestrial Editor of Environmental Toxicology and Chemistry, and as an Editorial Board member of the Bulletin of Environmental Contamination and Toxicology.
Science and Products
Filter Total Items: 17
Osprey (Pandion haliaetus) Population and the Availability of Menhaden (Brevoortia tyrannus) as Their Food Source in Chesapeake Bay: Historical and Present-day Comparison
USGS is collaborating with many biologists in analysis of data on osprey ( Pandion haliaetus ) and their prey (menhaden, Brevoortia tyrannus , and other species of fish) in the middle and lower Chesapeake Bay and its tributaries. The data compiled and collected will help determine if a lack of menhaden or other environmental factors are affecting osprey reproductive success in portions of the...
Review of Wildlife Health Outcomes and Potentially Toxic Algal Blooms in the Chesapeake Bay
Scientists provide resources that review algal toxin data, explore links between avian mortality and toxin exposure, and identify future research needs to predict algal toxin health hazards and risks for birds and other wildlife in the Chesapeake Bay.
Scientists Provide an Understanding of Anticoagulant Rodenticide Exposure in Non-Target Bird Species
U.S. Geological Survey scientists and their partners utilize laboratory and field studies and existing information to improve understanding of anticoagulant rodenticide exposure and effects to wild birds.
Hazard and Risk of Anticoagulant Rodenticides to Predatory and Scavenging Wildlife
Invasive mammalian predators are the most damaging group of animals affecting global biodiversity. When introduced on remote islands, alien rodent species can devastate local biota and have been linked to approximately 30% of all extinctions. In addition, rodents can also consume and spoil crops, and serve as disease vectors that affect humans. Starting in the 20th century, rodenticides were...
Do pesticide coatings on agricultural seeds pose a threat to earthworms and to the birds that eat them?
Earthworms are a vital part of a healthy, functioning soil ecosystem and are also an important protein-rich food source for wildlife, including many species of birds and mammals. In an agricultural setting, the presence of earthworms can increase crop yields by 25%, but can also expose earthworms to pesticides. Seed treatment is the principal application method for neonicotinoid insecticides, one...
Whole Wildlife Toxicology Catalog
Developed in 2008, the Whole Wildlife Toxicology Catalog is a portal to wildlife toxicology-oriented websites and databases. The catalog attempts to compile and provide access to website containing information that should be of value to scientists, regulators, natural resource managers, students and other members of the public. The catalog is updated annually. Please contact Barnett Rattner if you...
No Evidence of Toxicity to Birds Ingesting Neonicotinoid-Coated Wheat Seeds During Controlled Laboratory Study
Scientists determined what happens to the neonicotinoid insecticide, imidacloprid, on coated wheat seeds once ingested by Japanese quail (Coturnix japonica)—a model species for free-range, seed-eating, upland game birds. Imidacloprid was found to be rapidly adsorbed, metabolized, and excreted, and resulted in no overt signs of toxicity during a controlled laboratory study.
Contaminant-related Activities in Support of Client Agencies in the Department of the Interior
We undertake many research activities in support of the mission of the Department of the Interior. One such activity is to evaluate the potential hazard and risk of environmental contaminants to natural resources.
Contaminant Exposure, Food Web Transfer and Potential Health Effects on Chesapeake Bay and Delaware Bay Waterbirds
Chesapeake and Delaware Bays are the largest estuaries on the east coast of the United States. They support extensive fisheries and provide critical habitat for many species of wildlife. These Bays are surrounded by vast agricultural andindustrialized regions, with urbanized areas, all of which are a source of pollution that can affect natural resources. We have long monitored contaminants in this...
Long-term Studies Examine Contaminant Exposure and Reproduction of Ospreys Nesting in Two Large United States Estuaries
In a series of studies from 2010 to 2018, U.S. Geological Survey (USGS) scientists detected low levels of legacy contaminants and pharmaceuticals in osprey ( Pandion haliaetus ) and their food chain within the Chesapeake and Delaware River estuaries. Osprey reproductive success increased during the same period and was determined to be adequate to sustain a stable population in both estuaries.
Genomic and Behavioral Effects of the Neonicotinoid Imidacloprid in Birds Exposed Through Pesticide-Coated Seeds
The Challenge: Neonicotinoid pesticides act as agonists of nicotinic acetylcholine receptors (nAChRs) and are designed to be lethal to insects while theoretically posing little to no threat to vertebrates. The perceived safety of neonicotinoids has led to a sharp increase in their use in the United States and globally, since they were first introduced in 1994. The use of the neonicotinoid...
Assessing Contaminant Hazards Without a Critter—Advancements in Alternatives to Animal Toxicity Testing
During the past two decades, great strides have been made toward the development and use of ecotoxicity testing methods that reduce animal use or replace animals altogether with in vitro tests or in silico models.
Observing osprey nest
USGS scientist observing an osprey nest. Use of a mirror pole allows the researcher to observe the nest from a boat without disturbing the nest. The image was taken during a USGS study of osprey (Pandion haliaetus) and their prey (menhaden (Brevoortia tyrannus), and other species of fish) in the middle and lower Chesapeake Bay and its tributaries.
Goose eggs in nest on osprey platform
Goose eggs in nest on osprey platform
Goose eggs in nest on osprey platform
Osprey with nest in Aid to Navigation Chanel Marker
Osprey with nest in Aid to Navigation Chanel Marker west of Tighman Island, Chesapeake Bay
Osprey with nest in Aid to Navigation Chanel Marker west of Tighman Island, Chesapeake Bay
Pipetting test material onto diet for research study
Preparing test diet to determine the toxicity of rodenticide to non-target predatory birds in a effort to mitigate risk
Preparing test diet to determine the toxicity of rodenticide to non-target predatory birds in a effort to mitigate risk
American kestrel
American kestrel used to assess anticoagulant hazard to non-target raptors. Development of a Physiologically-Based Pharmacokinetic Model for Rodenticides Modifications; Toxicity of biologically incorporated chlorophacinone; Sequential Exposures to First and Second Generation Rodenticides by Non-target Raptors
American kestrel used to assess anticoagulant hazard to non-target raptors. Development of a Physiologically-Based Pharmacokinetic Model for Rodenticides Modifications; Toxicity of biologically incorporated chlorophacinone; Sequential Exposures to First and Second Generation Rodenticides by Non-target Raptors
Osprey nestlings
Assessing exposure to environmental contaminants in Chesapeake Bay ospreys. Contaminant exposure, food chain transfer and potential health effects on fish and ospreys (Pandion haliaetus) in Chesapeake and Delaware Bays
Assessing exposure to environmental contaminants in Chesapeake Bay ospreys. Contaminant exposure, food chain transfer and potential health effects on fish and ospreys (Pandion haliaetus) in Chesapeake and Delaware Bays
Osprey with prey
Studies of environmental contaminant exposure in the osprey and their food web in Chesapeake Bay
Studies of environmental contaminant exposure in the osprey and their food web in Chesapeake Bay
Eastern Screech Owl
Eastern screech owl used to study to assessment anticoagulant rodenticide hazards to non-target wildlife
Eastern screech owl used to study to assessment anticoagulant rodenticide hazards to non-target wildlife
Science and Products
Filter Total Items: 17
Osprey (Pandion haliaetus) Population and the Availability of Menhaden (Brevoortia tyrannus) as Their Food Source in Chesapeake Bay: Historical and Present-day Comparison
USGS is collaborating with many biologists in analysis of data on osprey ( Pandion haliaetus ) and their prey (menhaden, Brevoortia tyrannus , and other species of fish) in the middle and lower Chesapeake Bay and its tributaries. The data compiled and collected will help determine if a lack of menhaden or other environmental factors are affecting osprey reproductive success in portions of the...
Review of Wildlife Health Outcomes and Potentially Toxic Algal Blooms in the Chesapeake Bay
Scientists provide resources that review algal toxin data, explore links between avian mortality and toxin exposure, and identify future research needs to predict algal toxin health hazards and risks for birds and other wildlife in the Chesapeake Bay.
Scientists Provide an Understanding of Anticoagulant Rodenticide Exposure in Non-Target Bird Species
U.S. Geological Survey scientists and their partners utilize laboratory and field studies and existing information to improve understanding of anticoagulant rodenticide exposure and effects to wild birds.
Hazard and Risk of Anticoagulant Rodenticides to Predatory and Scavenging Wildlife
Invasive mammalian predators are the most damaging group of animals affecting global biodiversity. When introduced on remote islands, alien rodent species can devastate local biota and have been linked to approximately 30% of all extinctions. In addition, rodents can also consume and spoil crops, and serve as disease vectors that affect humans. Starting in the 20th century, rodenticides were...
Do pesticide coatings on agricultural seeds pose a threat to earthworms and to the birds that eat them?
Earthworms are a vital part of a healthy, functioning soil ecosystem and are also an important protein-rich food source for wildlife, including many species of birds and mammals. In an agricultural setting, the presence of earthworms can increase crop yields by 25%, but can also expose earthworms to pesticides. Seed treatment is the principal application method for neonicotinoid insecticides, one...
Whole Wildlife Toxicology Catalog
Developed in 2008, the Whole Wildlife Toxicology Catalog is a portal to wildlife toxicology-oriented websites and databases. The catalog attempts to compile and provide access to website containing information that should be of value to scientists, regulators, natural resource managers, students and other members of the public. The catalog is updated annually. Please contact Barnett Rattner if you...
No Evidence of Toxicity to Birds Ingesting Neonicotinoid-Coated Wheat Seeds During Controlled Laboratory Study
Scientists determined what happens to the neonicotinoid insecticide, imidacloprid, on coated wheat seeds once ingested by Japanese quail (Coturnix japonica)—a model species for free-range, seed-eating, upland game birds. Imidacloprid was found to be rapidly adsorbed, metabolized, and excreted, and resulted in no overt signs of toxicity during a controlled laboratory study.
Contaminant-related Activities in Support of Client Agencies in the Department of the Interior
We undertake many research activities in support of the mission of the Department of the Interior. One such activity is to evaluate the potential hazard and risk of environmental contaminants to natural resources.
Contaminant Exposure, Food Web Transfer and Potential Health Effects on Chesapeake Bay and Delaware Bay Waterbirds
Chesapeake and Delaware Bays are the largest estuaries on the east coast of the United States. They support extensive fisheries and provide critical habitat for many species of wildlife. These Bays are surrounded by vast agricultural andindustrialized regions, with urbanized areas, all of which are a source of pollution that can affect natural resources. We have long monitored contaminants in this...
Long-term Studies Examine Contaminant Exposure and Reproduction of Ospreys Nesting in Two Large United States Estuaries
In a series of studies from 2010 to 2018, U.S. Geological Survey (USGS) scientists detected low levels of legacy contaminants and pharmaceuticals in osprey ( Pandion haliaetus ) and their food chain within the Chesapeake and Delaware River estuaries. Osprey reproductive success increased during the same period and was determined to be adequate to sustain a stable population in both estuaries.
Genomic and Behavioral Effects of the Neonicotinoid Imidacloprid in Birds Exposed Through Pesticide-Coated Seeds
The Challenge: Neonicotinoid pesticides act as agonists of nicotinic acetylcholine receptors (nAChRs) and are designed to be lethal to insects while theoretically posing little to no threat to vertebrates. The perceived safety of neonicotinoids has led to a sharp increase in their use in the United States and globally, since they were first introduced in 1994. The use of the neonicotinoid...
Assessing Contaminant Hazards Without a Critter—Advancements in Alternatives to Animal Toxicity Testing
During the past two decades, great strides have been made toward the development and use of ecotoxicity testing methods that reduce animal use or replace animals altogether with in vitro tests or in silico models.
Observing osprey nest
USGS scientist observing an osprey nest. Use of a mirror pole allows the researcher to observe the nest from a boat without disturbing the nest. The image was taken during a USGS study of osprey (Pandion haliaetus) and their prey (menhaden (Brevoortia tyrannus), and other species of fish) in the middle and lower Chesapeake Bay and its tributaries.
USGS scientist observing an osprey nest. Use of a mirror pole allows the researcher to observe the nest from a boat without disturbing the nest. The image was taken during a USGS study of osprey (Pandion haliaetus) and their prey (menhaden (Brevoortia tyrannus), and other species of fish) in the middle and lower Chesapeake Bay and its tributaries.
Goose eggs in nest on osprey platform
Goose eggs in nest on osprey platform
Goose eggs in nest on osprey platform
Osprey with nest in Aid to Navigation Chanel Marker
Osprey with nest in Aid to Navigation Chanel Marker west of Tighman Island, Chesapeake Bay
Osprey with nest in Aid to Navigation Chanel Marker west of Tighman Island, Chesapeake Bay
Pipetting test material onto diet for research study
Preparing test diet to determine the toxicity of rodenticide to non-target predatory birds in a effort to mitigate risk
Preparing test diet to determine the toxicity of rodenticide to non-target predatory birds in a effort to mitigate risk
American kestrel
American kestrel used to assess anticoagulant hazard to non-target raptors. Development of a Physiologically-Based Pharmacokinetic Model for Rodenticides Modifications; Toxicity of biologically incorporated chlorophacinone; Sequential Exposures to First and Second Generation Rodenticides by Non-target Raptors
American kestrel used to assess anticoagulant hazard to non-target raptors. Development of a Physiologically-Based Pharmacokinetic Model for Rodenticides Modifications; Toxicity of biologically incorporated chlorophacinone; Sequential Exposures to First and Second Generation Rodenticides by Non-target Raptors
Osprey nestlings
Assessing exposure to environmental contaminants in Chesapeake Bay ospreys. Contaminant exposure, food chain transfer and potential health effects on fish and ospreys (Pandion haliaetus) in Chesapeake and Delaware Bays
Assessing exposure to environmental contaminants in Chesapeake Bay ospreys. Contaminant exposure, food chain transfer and potential health effects on fish and ospreys (Pandion haliaetus) in Chesapeake and Delaware Bays
Osprey with prey
Studies of environmental contaminant exposure in the osprey and their food web in Chesapeake Bay
Studies of environmental contaminant exposure in the osprey and their food web in Chesapeake Bay
Eastern Screech Owl
Eastern screech owl used to study to assessment anticoagulant rodenticide hazards to non-target wildlife
Eastern screech owl used to study to assessment anticoagulant rodenticide hazards to non-target wildlife
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government