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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...
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Between September and November each year, nearly the entire world population of Pacific black brant (Branta bernicla nigricans) stages at Izembek Lagoon and surrounding estuaries (hereafter: Izembek Complex). The Izembek Complex is a unique area of protected brackish waters, supporting one of the world’s largest eelgrass beds and a diverse array of wildlife. The Alaska Fall Brant Survey has been conducted annually since 1976 in late-September through October, to provide an index of abundance for the entire post-breeding Pacific black brant population (Branta bernicla nigricans), while secondarily, providing annual fall population indices for cackling geese (Branta hutchinsii), emperor geese (Anser canagicus), and...
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Boreal wetland birds are among the continent’s most rapidly declining avifauna. However, many of these declining species still breed commonly on military lands in Alaska. We propose to survey these species, as well as, additional boreal wetland obligates at breeding sites on Eielson Air Force Base (AFB) and then track migratory movements throughout the annual cycle. Our surveys aim to identify important wetland features for conservation and levels of fragmentation that may reduce bird breeding numbers. Our tracking of birds during migration will identify habitats for conservation at key stopover and wintering areas, and therefore allow conservation on military lands in Alaska to be directly linked to conservation...
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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...
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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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Many of North America’s most rapidly declining avifauna breed in the boreal and alpine ecosystems of Alaska. Joint Base Elmendorf-Richardson (JBER) located in Anchorage, Alaska, provides critical nesting habitat for five avian Species of Special Concern (SOSC): Solitary Sandpiper Tringa solitaria, Lesser Yellowlegs Tringa flavipes, Olive-sided Flycatcher Contopus cooperi, Rusty Blackbird Euphagus carolinus and Blackpoll Warbler Setophaga striata. Joint Base Elmendorf-Richardson derived the Species of Special Concern list from the Birds of Conservation Concern (USFWS 2008) and the Department of Defense Mission-Sensitive Priority Bird Species (DoD PIF 2015) lists. Department of Defense Partners in Flight recognizes...
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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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The Pacific Flyway Winter Brant Survey (WBS) has been conducted annually since 1981 as part of a cooperative effort by the U.S. Fish and Wildlife Service, Canadian Wildlife Service, Mexico, and the Pacific U.S. states, to estimate the abundance of the Pacific black brant (Branta bernicla nigricans) in their principal wintering areas along the Pacific Coast (in Baja, Mexico, California, Oregon, Washington, British Columbia, and Alaska). The survey is conducted each winter in January-February by a composite of ground and aerial crews, with the Alaska portion being conducted by the Alaska Region of USFWS Migratory Bird Management. The primary objective of the Alaska survey component is to provide an annual index of...
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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...
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Eareckson Air Station (AS) on Shemya Island is strategically located on the far eastern end of Alaska’s Aleutian archipelago. The frequent use of aircraft at this installation poses unique conflicts between the natural resources of the island and maintaining mission readiness and human/aircraft safety. Sikes Act Section 101(a) (16 U.S. Code 670a(a)) requires that Department of Defense (DoD) installations prepare Integrated Natural Resources Management Plans (INRMP) to conserve and rehabilitate natural resources on military installations and ensure that activities on the installations are integrated and consistent with environmental stewardship, laws and regulations, and the military mission. Accordingly, the DoD...
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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...
    map background search result map search result map Alaska Izembek Brant Winter Aerial Survey 1981-present Alaska Izembek Fall Brant Aerial Survey 1976-Present Alaska Red Knot Breeding Ecology Study 2010-Present 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 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 Alaska Joint Base Elmendorf-Richardson Installation Avian Study 2007-Present Alaska Eareckson Air Station Avian Study 2020-Present Alaska Eielson Air Force Base Avian Study 2019-Present Alaska Eareckson Air Station Avian Study 2020-Present Alaska Eielson Air Force Base Avian Study 2019-Present Alaska Red Knot Migration Study 2015-Present Alaska Izembek Fall Brant Aerial Survey 1976-Present Alaska Izembek Brant Winter Aerial Survey 1981-present Alaska Joint Base Elmendorf-Richardson Installation Avian Study 2007-Present Alaska Red Knot Breeding Ecology Study 2010-Present 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