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Shorebirds are among the most rapidly declining species in North America (Rosenberg et al. 2019), with many long-distance migrants experiencing the greatest declines (Environment Canada 2020). Nonetheless, not all shorebirds are declining and there may be differences among species and populations using different migratory routes. For instance, previous meta-analyses have suggested that shorebirds using the Mid-Continental Flyway are experiencing more rapid declines than those using the Pacific or Atlantic flyways (Thomas et al. 2006). At the same time, within a species, more northerly breeding populations are experiencing greater phenological mismatches and lower reproductive success than southerly ones (Kwon et...
The Chesapeake Watershed Investments for Landscape Defense (Chesapeake WILD) Grants program supports efforts to conserve and enhance wildlife habitats, sustain natural resources and benefit human communities throughout the Chesapeake Bay watershed. Goals: Advancing climate change adaptation and land-use planning by increasing science capacity to support improved strategic planning, conservation design, monitoring and applied science activities necessary to ensure resilience of natural ecosystems and habitats; Increasing capacity and support for coordinated restoration and conservation activities in the Chesapeake Bay watershed, particularly in historically and systemically under-resourced communities, through outreach,...
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The primary objective of this project was to monitor the growth of shorebird chicks by recapturing them from hatch to fledgling in relation to food abundance and weather conditions. In 2014 and 2015, we attempted to estimate the impacts of trophic mismatch by experimentally creating late hatched broods by refrigerating eggs to delay hatch. Transmitters were then attached to adults and chicks to follow and recapture chick in order to estimate growth rates and survival (see annual protocol documents for further information).Information for the Utqiagvik chick monitoring study were obtained concurrently with information obtained for the Utqiagvik shorebird project and information on chicks and nests included in these...
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Many North American shorebird species are experiencing significant population declines, but we have incomplete information about the population sizes and trends for most species. Conservation efforts are underway throughout the Hemisphere to reverse these declines, but we cannot measure the success of those efforts until we have an accurate assessment of population sizes and trends. The Program for Regional and International Shorebird Monitoring (PRISM) is a broad-scale, multi-national effort to monitor both the sizes and trends of shorebird populations (https://www.shorebirdplan.org/science/program-for-regional-and-international-shorebird-monitoring/). PRISM also strives to describe the distribution and habitat...
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Upland Sandpiper is one of many declining shorebird species (-4.6%/year in Alaska; Ziolkowski et al. 2023) which breed on military and adjacent lands in Alaska. Western and eastern populations are small and unstable, and the species is endangered at the state level in several eastern U.S. states (Houston et al. 2023). Though there has been considerable work with Upland Sandpipers in their core, central U.S. breeding areas, this is the first dedicated study of Upland Sandpipers in Alaska. The objectives are to resight, band, and track Upland Sandpiper at breeding sites in Delta Junction, AK and Donnelly Training Area (TA 501 & TA 511) to estimate vial rates, determine migratory connectivity, and determine important...
Funds will be used to establish a new program for raising Chesapeake logperch at the Pennsylvania Fish and Boat Commission’s Union City Hatchery. Fish will supply reintroduction and population augmentation efforts in Pennsylvania and Maryland.
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Beginning in 2003, we have conducted a long-term shorebird breeding ecology study at Utqiaġvik (formerly Barrow), Alaska. The objectives of this study are to (1) collect baseline data on temporal and spatial variability of shorebird diversity and abundance, (2) collect information on nest initiation and effort, replacement clutch laying, clutch and egg size, nest and chick survival, and other demographic traits of Arctic-breeding shorebirds, (3) establish a marked population of as many shorebird species as possible that will allow us to estimate adult survival, mate and site fidelity, and natal philopatry, and (4) relate weather, food availability, and predator and prey abundances to shorebird productivity and survival....
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Information on abundance, distribution, chronology, and habitat associations of birds at U.S. Air Force Long Range Radar Sites (USAF LRRS) and U.S. Navy lands is either outdated or lacking. In other situations, existing information has been obtained using a variety of incompatible methods thereby complicating the ability to discern changes to bird communities or the habitats they rely upon. Up-to-date information on the use of military lands by all bird species is important for both the Department of Defense (DOD) and the U.S. Fish and Wildlife Service (USFWS). Furthermore, updating avian inventories and implementing a standardized monitoring program across military lands helps USFWS-MBM by improving avian trend...
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These datasets describe the inventory of feather and blood samples collected from shorebirds that were captured primarily in northern Alaska but also in other parts of the world where studies were conducted on migratory species that breed in Alaska. These samples are maintained by USFWS and the feather samples in particular are part of the AviSample Network metadata repository (see Brlik et al. 2022. The reuse of avian samples: opportunities, pitfalls, and a solution. Ibis 164:343-349).Additional information for samples collected at Utqiagvik and in association with the tracking project can be found in the Utqiagvik shorebird project (file://ifw7ro-file.fws.doi.net/datamgt/mbm/mbmsh_009_Utqiagvik_shorebird_project)...
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The degradation of critical wintering and migratory stop-over sites is known to have direct consequences on the survival and reproductive condition of migratory shorebirds. However, little is known about migratory movements and connectivity of shorebird populations. By identifying migratory stop-over and wintering areas, we can begin to identify sites that should be conserved and evaluate the relative risks of development and climate change scenarios. Beginning in 2017, we initiated a project to track the migration movements of shorebird species using Argos, GPS, and Pinpoint tags. The primary objective of this study is to collect baseline information on movement patterns of shorebirds during the post-breeding period...
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The Spoon-billed Sandpiper (Eurynorhynchus pygmeus) is a critically endangered species (Bird Life International 2011) with a population estimated at 661-678 individuals (but only 210-228 breeding pairs, Clark et al. 2016). Although it principally breeds in Russia and has not officially been documented breeding in Alaska, observations of Spoon-billed Sandpipers have been recorded in Alaska during the breeding season (Kessel and Gibson 1978), and a recently developed habitat suitability model indicated that suitable nesting habitat occurs in Alaska’s Chukchi Sea region (RSBP 2012). However, no systematic survey of potential breeding habitat had been conducted in this region during the spring and summer when this species...
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In 2008 and 2009, we investigated the survival of chicks from initial and experimentally-induced replacement nests of arcticola Dunlin (Calidris alpina) breeding near Utqiaġvik, Alaska. We monitored survival of 66 broods from 41 initial and 25 replacement nests. See Saalfeld, S.T., B.L. Hill, C.M. Hunter, C.J. Frost, and R.B. Lanctot. 2021. Warming Arctic summers unlikely to increase productivity of shorebirds through renesting. Nature Scientific Reports 11-15277 for more detailed methods and data analysis.Information for the Dunlin brood survival project were obtained concurrently with information obtained for the Utqiagvik shorebird project and information on chicks and nests included in these files may also be...
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Feathers have been collected from shorebirds from 2006-2019 across Alaska and Canada. To determine the impact of feather pulling on subsequent feather growth, we identified and scanned feathers that were collected in subsequent years. In this case, we restricted our dataset to samples in which the same feathers were pulled in subsequent years and for those collected only after their initial pulling (i.e., year x and x+1). These scans will then be used to look at size and shape in comparison to original feathers to determine if pulling of feathers has any impact on growth of feathers in the following year.The data providers have invested considerable effort in QA/QC, but it is possible that undetected errors remain....
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Principal to the management of migratory landbird resources is an understanding of their occurrence within the landscape. Baseline information on bird distribution is a primary need “to preserve a natural diversity and abundance of fauna and flora on refuge lands” (U.S. Fish and Wildlife Service [USFWS] 1993a). Documenting the occurrence and distribution of all migratory bird species is a priority of the USFWS’s action plan for developing a nongame bird inventory and monitoring strategy for National Wildlife Refuge system lands (USFWS 1993b ). Distribution and abundance information previously collected on National Wildlife Refuges has contributed to the description of distributional patterns of birds in Alaska....
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The roselaari subspecies of Red Knot is one of the rarest shorebird populations breeding in North America, based on a the current population size estimate of 17,000 individuals (Carmona et al 2013). As a result of suspected declines,the roselaari subspecies has been designated as threatened by the Committee on the Status of Endangered Wildlife in Canada and was petitioned for listing under the U.S. Endangered Species Act. The U.S. Fish and Wildlife Service’s decision to not conduct a full status review for listing was based on the lack of substantial information identifying threats and population trends (USFWS 2011). The apparent low population size coupled with the scarcity of information on many demographic and...
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Indirect interactions between different prey species modulated by shared predators (e.g. Arctic fox) are believed to have important impacts on the structure and/or dynamics of some communities. Yet, our understanding of these types of interactions are still fragmentary. To fill this information gap, the joint circumpolar project on indirect trophic interactions was established in 2016. This project built upon ongoing projects exploring related questions in Canada (Marie-Andrée Giroux, Nicolas Lecomte, Joel Bety) and Greenland (Olivier Gilg, Niels M. Schmidt), while taking advantage of existing networks (ASDN in North America and “Interactions” program in Greenland and Eurasia). The aim of this project was to promote...
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The roselaari subspecies of Red Knot is one of the rarest shorebird populations breeding in North America, based on a the current population size estimate of 17,000 individuals (Carmona et al 2013). As a result of suspected declines,the roselaari subspecies has been designated as threatened by the Committee on the Status of Endangered Wildlife in Canada and was petitioned for listing under the U.S. Endangered Species Act. The U.S. Fish and Wildlife Service’s decision to not conduct a full status review for listing was based on the lack of substantial information identifying threats and population trends (USFWS 2011). The apparent low population size coupled with the scarcity of information on many demographic and...
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Shorebirds are a group of predominantly migratory birds that are declining at an alarming rate; many of them have declined by more than 50% since 1970 and 13 are of federal conservation concern. With staggeringly long, trans-hemispheric migrations along each of North America’s migratory flyways — distinct corridors that divide North America longitudinally — shorebirds breeding in the Arctic and sub-Arctic and wintering in Central and South America encounter a multitude of threats during their annual cycles. This study aims to track the fall migration of a suite of species from their breeding sites across Alaska to the southern extent of their respective ranges and address how differences in migratory connectivity...
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Multiple lines of evidence suggest that the Gray-headed Chickadee (Poecile cinctus lathami), a population endemic to Alaska and northwestern Canada, has declined and/or been extirpated from locations where they were considered historically common. In contrast, the Boreal Chickadee, a native congener, has recently colonized locations where Gray-headed Chickadees once occurred. This project focuses on whether hybridization (and subsequent transfer of genetic material from one species into another with continued breeding events overtime) between these two closely related chickadee species may be responsible for Gray-headed Chickadee declines. Specifically, our objectives are to: 1) Conduct call-playback surveys to...
    map background search result map search result map Alaska Red Knot Breeding Ecology Study 2010-Present Utqiagvik Alaska Joint Circumpolar Project on Indirect Trophic Interactions Alaska Yukon Delta PRISM surveys Alaska Shorebird Sample Inventory Alaska Shorebird Migration Tracking Study Utqiaģvik Alaska Shorebird Breeding Ecology Study Utqiagvik Alaska Dunlin Brood Survival Impact of Feather Pulling on Shorebirds in Alaska Spoon-billed Sandpiper (SBSP) Surveys Near Kotzebue Alaska 2018 Alaska Department of Defense Shorebird Migration Project 2021-Present Utqiagvik Alaska Shorebird Chick Monitoring Study Alaska Department of Defense Migratory Movements Upland Sandpiper Study 2021-Present Alaska Department of Defense Shorebird Migratory Phenologies and Strategies Study 2022-Present Avian Species Inventory and Monitoring at U.S. Air Force and U.S. Navy lands near Point Barrow Alaska Alaska National Wildlife Refuge Avian Checklist Project 1991-2000 Alaska Grey-headed Chickadee and Boreal Chickadee Hybridization Study Alaska Red Knot Migration Study 2015-Present Avian Species Inventory and Monitoring at U.S. Air Force and U.S. Navy lands near Point Barrow Alaska Utqiagvik Alaska Joint Circumpolar Project on Indirect Trophic Interactions Utqiagvik Alaska Dunlin Brood Survival Alaska Red Knot Migration Study 2015-Present Utqiaģvik Alaska Shorebird Breeding Ecology Study Utqiagvik Alaska Shorebird Chick Monitoring Study Alaska Red Knot Breeding Ecology Study 2010-Present Spoon-billed Sandpiper (SBSP) Surveys Near Kotzebue Alaska 2018 Alaska Yukon Delta PRISM surveys Alaska Grey-headed Chickadee and Boreal Chickadee Hybridization Study Alaska National Wildlife Refuge Avian Checklist Project 1991-2000 Alaska Department of Defense Shorebird Migration Project 2021-Present Alaska Department of Defense Migratory Movements Upland Sandpiper Study 2021-Present Alaska Department of Defense Shorebird Migratory Phenologies and Strategies Study 2022-Present Impact of Feather Pulling on Shorebirds in Alaska Alaska Shorebird Migration Tracking Study Alaska Shorebird Sample Inventory