Mark Sherfy
Science and Products
Improving monitoring techniques for nests of interior least terns and piping plovers
Least terns and piping plovers are the subject of numerous population monitoring efforts. Population monitoring requires periodic visits to nesting areas to count and assess breeding status of the birds. At higher visit frequencies, detection of nests and chicks improves as does ability to determine outcomes of nesting attempts, resulting in more complete and accurate productivity...
U.S. Geological Survey—Northern Prairie Wildlife Research Center 2019–20 research activity report
The mission of Northern Prairie Wildlife Research Center is to provide scientific information needed to conserve and manage the Nation’s natural capital for current and future generations, with an emphasis on migratory birds, Department of the Interior trust resources, and ecosystems of the Nation’s interior. This report provides an overview of...
Sherfy, Mark H.
U.S. Geological Survey migratory bird science, 2020–21
Bird conservation as an endeavor engages a broad range of partners and a coordinated effort across State and Federal agencies, nongovernment organizations, universities and, at times, international partnerships. To understand information needs and respond to the many challenges in bird conservation, U.S. Geological Survey (USGS) scientists...
Pearse, Aaron T.; Sherfy, Mark H.; Wimer, Mark; Khalil, Mona; Wiltermuth, Mark
Spatial variation in population dynamics of northern Great Plains piping plovers
Metapopulation dynamics are determined not only by within-patch birth and death processes but also by between-patch movements of individuals (emigration and immigration). To conserve and manage a species that has a metapopulation structure, defined by local populations that are distributed among patches of suitable habitat, we need to understand...
Swift, Rose J.; Anteau, Michael J.; Ellis, Kristen S.; Ring, Megan M.; Sherfy, Mark H.; Toy, Dustin L.; Koons, David N.
U.S. Geological Survey—Northern Prairie Wildlife Research Center 2018 research activity report
The mission of Northern Prairie Wildlife Research Center is to provide scientific information needed to conserve and manage the Nation’s natural capital for current and future generations, with an emphasis on migratory birds, Department of the Interior trust resources, and ecosystems of the Nation’s interior. This report provides an overview of...
Sherfy, Mark H.
Asymmetric benefits of a heterospecific breeding association vary with habitat, conspecific abundance and breeding stage
Heterospecific breeding associations may benefit individuals by mitigating predation risk but may also create costs if they increase competition for resources or are more easily detectable by predators. Our understanding of the interactions among hetero‐ and conspecifics is often lacking in mixed species colonies. Here, we test how the presence of...
Swift, Rose J.; Anteau, Michael J.; Roche, Erin A.; Sherfy, Mark H.; Toy, Dustin L.; Ring, Megan Low renesting propensity and reproductive success make renesting unproductive for the threatened Piping Plover (Charadrius melodus)
Upon reproductive failure, many bird species make a secondary attempt at nesting (hereafter, “renesting”). Renesting may be an effective strategy to maximize current and lifetime reproductive success, but individuals face uncertainty in the probability of success because reproductive attempts initiated later in the breeding season often have...
Swift, Rose J.; Anteau, Michael J.; Ring, Megan; Toy, Dustin L.; Sherfy, Mark H. Accuracy of nest fate classification and predator identification from evidence at nests of least terns and piping plovers
For federally listed species such as Least Tern Sternula antillarum and Piping Plover Charadrius melodus, correct determination of nest fates and causes of nest failure is crucial for understanding population dynamics and improving monitoring programmes. We used video cameras to evaluate nest fate misclassification rate and to...
Andes, Alicia K.; Shaffer, Terry L.; Sherfy, Mark H.; Hofer, Chantel M.; Dovichin, Colin M.; Ellis-Felege, Susan N.
U.S. Geological Survey—Northern Prairie Wildlife Research Center 2017 research activity report
The mission of Northern Prairie Wildlife Research Center is to provide scientific information needed to conserve and manage the Nation’s natural capital for current and future generations, with an emphasis on migratory birds, Department of the Interior trust resources, and ecosystems of the Nation’s interior. This report provides an...
Sherfy, Mark H.
Demographic responses of least terns and piping plovers to the 2011 Missouri River flood—A large-scale case study
A catastrophic flood event on the Missouri River system in 2011 led to substantial changes in abundance and distribution of unvegetated sand habitat. This river system is a major component of the breeding range for interior Least terns (Sternula antillarum; “terns”) and piping plovers (Charadrius melodus; “plovers”), both of which are Federally...
Anteau, Michael J.; Sherfy, Mark H.; Shaffer, Terry L.; Swift, Rose J.; Toy, Dustin L.; Dovichin, Colin M. Density and success of upland duck nests in native‐ and tame‐seeded conservation fields
The Conservation Reserve Program (CRP) generates substantial benefits to continental duck populations by providing grassland nesting habitat in rested cropland. Seeding mixes of CRP grasslands vary among numerous conservation practices, but one contrast of interest in the Prairie Pothole Region is the use of introduced, or “tame” versus native...
Sherfy, Mark H.; Anteau, Michael J.; Shaffer, Terry L.; Johnson, Michael A.; Reynolds, Ronald E.; Ringelman, James K.
Demographics and movements of least terns and piping plovers in the Central Platte River Valley, Nebraska
The Central Platte River Valley provides breeding habitat for a variety of migratory birds, including federally endangered interior least terns (Sternula antillarum; least tern) and threatened piping plovers (Charadrius melodus). Since 2009, researchers have collected demographic data on both species that span their lifecycle (that is, from egg...
Roche, Erin A.; Sherfy, Mark H.; Ring, Megan M.; Shaffer, Terry L.; Anteau, Michael J.; Stucker, Jennifer H. Synchrony of Piping Plover breeding populations in the U.S. Northern Great Plains
Local populations that fluctuate synchronously are at a greater risk of extinction than those that do not. The closer the geographic proximity of populations, the more prone they are to synchronizing. Shorebird species select habitat broadly, and many breed across regions with diverse nesting habitat types. Under these conditions, nearby...
Roche, Erin A.; Shaffer, Terry L.; Dovichin, Colin M.; Sherfy, Mark H.; Anteau, Michael J.; Wiltermuth, Mark