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The Glaucous Gull is a large gull with a circumpolar distribution. In Alaska, it is the mostcommon gull along Arctic Ocean coastal areas. Like other gulls, this generalist species hasbenefited from the presence of humans in the arctic and readily utilizes human-subsidized foodresources (e.g. edible garbage, roadkills; Day 1998). Glaucous Gulls take advantage of a widevariety of natural prey as well and are a noted nest predator. Alaskan populations of this specieswinter in the Pribilof and Aleutian islands of Alaska and in decreasing numbers down to coastalOregon and California (Denlinger 2006). The global population is estimated at 340,000-2,400,000 (Wetlands International 2006).
The Northern Pintail is the most common breeding dabbling duck in Arctic Alaska, with its corebreeding area centered on the coastal plain. In Alaska this species nests on wet sedge (Carex) orgrass meadows, sloughs, river banks, pond shores and in tidal habitats (Austin and Miller 1995).During the breeding season pintails consume mostly animal foods (aquatic invertebrates)although they switch to a largely vegetarian diet later in summer and fall (Austin and Miller1995). Northern Pintails spend their winters primarily in the southern US and Mexico (Austinand Miller 1995). The North American pintail population is down from 6 million in the early1970s to 2.6 million in 2005 (http://ak.audubon.org/species/norpin). However,...
The Baird’s Sandpiper is an uncommon breeding bird in Arctic Alaska using both coastal andmontane regions. This species typically nests in upland, well-drained, exposed tundra, generallyavoiding wet tundra although will sometimes nest in wet prairie meadows near lakes (Marconi &Salvadori 2008). Like other sandpipers, Baird’s Sandpipers feed almost entirely on insects duringthe breeding season adjusting to seasonal shifts in primary prey items (Moskoff andMontgomerie 2002). This species is a long-distance migrant and winters throughout the southerncone of South America. Current population estimate is 300,000 (Morrison et al. 2006).
The Pomarine Jaeger, the largest of the three jaegers, prowls the arctic tundra subsisting on a dietcomposed almost entirely of brown lemmings (Lemmus trimucronatus). This species presumablynests only in years when lemmings are abundant (Wiley and Lee 2000). Their breeding range inAlaska is relatively close to the coast, typically nesting in wet tundra habitats, the same habitatsas those utilized by their favorite prey. Pomarine Jaegers may forgo breeding in low lemmingyears and prematurely return to their tropical and sub-tropical pelagic wintering grounds (Wileyand Lee 2000). Current global population estimate is 250,000 – 3 million individuals (BirdLifeInternational 2012).
The Parasitic Jaeger, unlike the two other jaegers (the Long-tailed and Pomarine Jaegers), has avaried diet and is not closely tied to lemmings as a food source (Wiley and Lee 1999). Thisspecies utilizes both low-lying marshy tundra and drier tussock-heath tundra for nesting sites(Wiley and Lee 1999). Parastic Jaegers often hunt for fledgling and adult birds and are believedto be an important nest predator (Wiley and Lee 1999). Like the other jaeger species, ParasiticJaegers winter in offshore tropical and sub-tropical oceans. The current global populationestimate is 500,000 - 10,000,000 (BirdLife International 2012). There is no Alaska populationestimate available.
The Rough-legged Hawk is truly a hawk of the far north, with its breeding range largelyrestricted to arctic tundra and taiga habitats. In open tundra, this species typically places nests onsteep outcroppings and cliff faces. Rough-legged Hawks rely on a diet of small mammals(mostly lemmings, voles) although a variety of birds are also eaten (Bechard and Swem 2002).On the coastal plain of Alaska they typically forage in open tundra and low-brush habitats (e.g.river floodplains) (Bechard and Swem 2002). Rough-legged Hawks spend their winters insouthern Canada and throughout the lower 48 (Bechard and Swem 2002). The current globalpopulation is estimated at > 4 million (Rich et al. 2004).
The Short-eared Owl occurs widely throughout North America. An owl of open country, theynest on the ground inhabiting marshes, grasslands, and tundra throughout their range. LikeSnowy Owls, Short-eared owl population dynamics are linked to cycles in their primary prey -small mammals (Holt and Leasure 1993). In the Alaskan Arctic, they typically nest on driertundra sites, usually with enough vegetation to conceal incubating females. They often forage inwet tundra habitats, though not exclusively (Holt and Leasure 1993). Short-eared Owls migrateto wintering grounds in the lower 48 and northern Mexico (Holt and Leasure 1993). The currentglobal population is estimated at 2 million (Rich et al. 2004).
The Greater White-fronted Goose, with a nearly circumpolar distribution, has the most expansiverange of any species in its genus. In Alaska, this species breeds in large numbers in both theYukon-Kuskokwim Delta and also on the Arctic Coastal Plain, but they will also nest in theinterior. On the coastal plain breeding habitat ranges from lowland wet to upland dry tundraoften near ponds or lakes (Ely and Dzubin 1994). The Greater White-fronted Goose diet isdominated by vegetative matter, primarily grass and sedge rhizomes, tubers, and berries (Ely andDzubin 1994). Arctic Alaskan populations winter on the Gulf Coastal plain in Louisiana andTexas as well as northern Mexico (Ely and Dzubin 1994). The Alaskan Arctic Coastal...
The Buff-breasted Sandpiper is known for its dramatic lekking displays and breeds near arcticcoastlines from central Alaska into Canada (Lanctot and Laredo 1994). This species nests in avariety of habitats ranging from dry sedge tussock tundra to wet sedge-graminoid meadows andstrangmoor (Lanctot and Laredo 1994). Buff-breasted Sandpipers typically forage in areas ofdry, elevated tundra with sparse vegetation primarily consuming terrestrial arthropods (Lanctotand Laredo 1994). This species is one of the few shorebirds that do not show a seasonal shifttoward lowland, wet sites during brood-rearing (Jones 1980, R. Lanctot, unpublished data). BuffbreastedSandpipers spend winters on the pampas of South America. Current...
Cackling and Canada Geese were recently split into two species. The Cackling Goose tavernerisubspecies is thought to be the dominant breeder on Alaska’s Arctic Coastal Plain although someevidence suggests they may interbreed with Canada Goose parvipes subspecies (Mowbray et al.2002). Coastal plain Cackling/Canada geese nest in moist sedge shrub tundra with brood rearingin wet sedge meadows, often near the coast (Mowbray et al. 2002). On the coastal plain their dietis dominated by Carex spp. (J. Hupp, pers. comm.). Arctic Alaskan populations winter primarilyin w. Washington and Oregon as well as n. California (Mowbray et al. 2002). The AlaskanArctic Coastal Plain population is estimated at ~8,000 with a stable population...
The Arctic LCC created the Threatened Eider Geodatabase to serve as a repository for threatened eider distribution information. This database is intended to be a qualitative “first look” at where these two species of eider have been recorded and where surveys have been conducted. This dataset is intended for general planning and mapping purposes, it should NOT be used for deriving density estimates. Users are reminded that these data do not represent all locations within the geographic scope of this database that may be occupied by threatened eiders..
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BIRDS,
BIRDS,
Data Acquisition and Development,
Data Management and Integration,
Datasets/Database,
The Alaska Data Integration Working Group (ADIwg) Metadata Toolkit is an open source, suite of web applications for authoring and editing metadata for both spatial and non-spatial projects and datasets. The main goal of the toolkit is to promote the creation and use of metadata by lowering the level of technical expertise required to produce archival quality metadata.mdJSON is the metadata format ties the suite of tools together. The mdEditor is an open source client-side web application design to allow users to manage metadata for projects and data products. The mdEditor may be used to create mdJSON and interface with the mdTranslator to output metadata in multiple standards, including ISO 19115-2, 19115-1, 19110,...
Categories: Data,
Project;
Tags: AUTHORING TOOLS,
AUTHORING TOOLS,
Academics & scientific researchers,
Conservation NGOs,
Data Management and Integration,
Summary report titled “Development of Shorebird Distribution Maps for the North Slope of Alaska Using Geospatial Habitat Modeling: the First Step in Assessing Effects of Climate Change.” The report includes an Appendix that identifies data layers that were unavailable but would have been useful to include in the study.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Arctic Landscape Conservation Cooperative data.gov,
BIRDS,
BIRDS,
Conservation NGOs,
The primary goal of this project was to predict climate-related changes in the timing and duration of insect prey availability for arctic-breeding shorebirds. Researchers coordinated closely with the Arctic Shorebird Demographics Network, whose collaborators sampled aquatic insect emergence, terrestrial insect activity, and associated environmental data at sites across arctic Alaska and Canada. Using ASDN data, they developed mathematical models that relate the timing and duration of insect emergence and activity to accumulated temperature, weather, and other environmental variables. They used these models to predict future changes in the timing of arctic insect availability based on climate change projections....
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ANIMALS/INVERTEBRATES,
ANIMALS/INVERTEBRATES,
Academics & scientific researchers,
Datasets/Database,
LCC Network Science Catalog,
Shorebirds are among the most abundant and visible high-latitude vertebrates. Their ecology makes them particularly sensitive to climate change in the arctic. The current distribution of shorebirds on the Arctic Coastal Plain is poorly known because accurate data exist from just a few locations. The Arctic LCC has supported development of habitat selection models that combine bird survey data with remotely-sensed habitat maps to “fill in the gaps” where observations are sparse. In future phases, the distribution maps generated from these models could be ground-truthed and improved, and subsequently used as the basis from which to forecast future shorebird distribution for projected future climate scenarios.
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
BIRDS,
BIRDS,
Conservation NGOs,
Conservation Planning,
This dataset contains rasters that represent mapped habitat suitability indices for 8 shorebird species, a raster that represents mean habitat suitability indices for all 8 species, and a raster that represents the number of species in which the habitat suitability index exceeded the selected threshold value for each pixel. The shorebird species used for this modeling effort are American Golden-Plover [AMGP], Black-bellied Plover [BBPL], Dunlin [DUNL], Long-billed Dowitcher [LBDO], Pectoral Sandpiper [PESA], Red Phalarope [REPH], Red-necked Phalarope [RNPH], and Semipalmated Sandpiper [SESA].
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Arctic Landscape Conservation Cooperative data.gov,
BIRDS,
BIRDS,
Conservation NGOs,
Historically, available den habitat models have been based primarily on the presence of topographic features capable of capturing drifting snow. In any given season, however, the availability and precise location of snowdrifts of sufficient size to accommodate a bear den depends on the antecedent snowfall and wind conditions, and these vary from one year to the next. Thus, suitable topography is a necessary pre-condition, but is not sufficient to accurately predict potential den sites in a given year.To satisfy the requirements of agency and industry managers what is needed is a user-friendly decision-support tool that takes into account the current fall and early-winter meteorological conditions, and provides den...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Arctic Landscape Conservation Cooperative data.gov,
BEARS,
BEARS,
Federal resource managers,
In Arctic ecosystems, freshwater fish migrateseasonally between productive shallow water habitatsthat freeze in winter and deep overwinter refuge in riversand lakes. How these movements relate to seasonal hydrologyis not well understood.We used passive integratedtransponder tags and stream wide antennae to track1035 Arctic grayling in Crea Creek, a seasonally flowingbeaded stream on the Arctic Coastal Plain, Alaska. Migrationof juvenile and adult fish into Crea Creek peakedin June immediately after ice break-up in the stream. Fishthat entered the stream during periods of high flow andcold stream temperature traveled farther upstream thanthose entering during periods of lower flow and warmertemperature. We used generalized...
Poster describing Coastal Resilience process and strategy.
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Aleutian Bering Sea Islands LCC data.gov,
CLIMATE ADVISORIES,
CLIMATE ADVISORIES,
CLIMATE INDICATORS,
The Lapland Longspur is the most abundant passerine breeder on the North Slope of Alaska.This species is most commonly associated with the Arctic Coastal Plain, but also nests in alpinehabitats in the interior Brooks Range. High nesting densities have been found throughout theAlaskan coastal plain (Custer and Pitelka 1977, Liebezeit et al. 2011) with nesting sites often indry/moist tundra near tussocks and less frequently in wetter tundra habitats (Hussell andMontgomerie 2002). During the breeding season they typically forage in a wide range of habitatson a variety of invertebrates but also consume seeds and other vegetative matter (Hussell andMontgomerie 2002). Alaskan Lapland Longspurs are short-distance migrants...
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