scholarly journals Bird Use of Northern Alaska Oilfield Rehabilitation Sites

ARCTIC ◽  
2018 ◽  
Vol 71 (4) ◽  
pp. 422-430
Author(s):  
Rebecca Bentzen ◽  
Joe Liebezeit ◽  
Martin Robards ◽  
Bill Streever ◽  
Samantha Strindberg ◽  
...  
Keyword(s):  
Anthropogenic Disturbance ◽  
Industrial Development ◽  
Migratory Birds ◽  
Breeding Habitat ◽  
The Arctic ◽  
Reference Sites ◽  
Breeding Bird ◽  
The North ◽  
North Slope Of Alaska ◽  
Northern Alaska

Breeding bird response to habitat rehabilitation after anthropogenic disturbance has received little attention in the Arctic. The North Slope of Alaska is an important breeding ground for many populations of migratory birds and has also supported major oilfields since the late 1960s. The most obvious impacts of industrial development to nesting birds are direct habitat loss and fragmentation resulting from the construction of infrastructure, along with increased mechanical noise, vehicle traffic, and other forms of anthropogenic disturbance. In response to state and federal requirements, efforts have been made to rehabilitate abandoned portions of the oilfields. We compared bird use at rehabilitation sites and at nearby paired reference sites. Densities of shorebirds and passerines varied between rehabilitation sites and reference sites, but waterfowl densities did not. Specifically, passerine and shorebird densities were higher at reference sites in the early or mid-season and lower at reference sites in the late season. Additionally, birds on rehabilitation sites were primarily observed foraging and resting, while behavior observed on paired reference sites was more diverse and included courtship displays, nesting, and aggression. Further, rehabilitation sites supported significantly fewer nests and fewer species than recorded at reference sites. Our findings suggest that sites 3 to 10 years post rehabilitation do not provide bird habitat comparable to nearby reference sites and, by extension, do not provide shorebird and passerine habitat comparable to that found prior to development. However, rehabilitation sites appear to provide adequate habitat for waterfowl and are important to shorebirds and passerines as foraging areas. Continued monitoring will be needed to establish the long-term suitability of rehabilitation sites, compared to reference sites, as breeding habitat for birds.

Danian Mollusks from the Prince Creek Formation, Northern Alaska, and Implications for Arctic Ocean Paleogeography

1993 ◽  
Vol 67 (S35) ◽  
pp. 1-35 ◽  
Author(s):  
Louie Marincovich
Keyword(s):  
Arctic Ocean ◽  
World Ocean ◽  
Ocean Basin ◽  
The Arctic ◽  
The North ◽  
The World ◽  
The Arctic Ocean ◽  
Molluscan Fauna ◽  
Endemic Genera ◽  
Northern Alaska

The marine molluscan fauna of the Prince Creek Formation near Ocean Point, northern Alaska, is of Danian age. It is the only diverse and abundant Danian molluscan fauna known from the Arctic Ocean realm, and is the first evidence for an indigenous Paleocene shallow-water biota within a discrete Arctic Ocean Basin faunal province.A high percentage of endemic species, and two endemic genera, emphasize the degree to which the Arctic Ocean was geographically isolated from the world ocean during the earliest Tertiary. Many of the well-preserved Ocean Point mollusks, however, also occur in Danian faunas of the North American Western Interior, the Canadian Arctic Islands, Svalbard, and northwestern Europe, and are the basis for relating this Arctic Ocean fauna to that of the Danian world ocean.The Arctic Ocean was a Danian refugium for some genera that became extinct elsewhere during the Jurassic and Cretaceous. At the same time, this nearly landlocked ocean fostered the evolution of new taxa that later in the Paleogene migrated into the world ocean by way of the northeastern Atlantic. The first Cenozoic occurrences are reported for the bivalves Integricardium (Integricardium), Oxytoma (Hypoxytoma), Placunopsis, Tancredia (Tancredia), and Tellinimera, and the oldest Cenozoic records given for the bivalves Gari (Garum), Neilo, and Yoldia (Cnesterium). Among the 25 species in the molluscan fauna are four new gastropod species, Amauropsis fetteri, Ellipsoscapha sohli, Mathilda (Fimbriatella) amundseni, and Polinices (Euspira) repenningi, two new bivalve genera, Arcticlam and Mytilon, and 15 new bivalve species, Arcticlam nanseni, Corbula (Caryocorbula) betsyae, Crenella kannoi, Cyrtodaria katieae, Gari (Garum) brouwersae, Integricardium (Integricardium) keenae, Mytilon theresae, Neilo gryci, Nucula (Nucula) micheleae, Nuculana (Jupiteria) moriyai, Oxytoma (Hypoxytoma) hargrovei, Placunopsis rothi, Tancredia (Tancredia) slavichi, Tellinimera kauffmani, and Yoldia (Cnesterium) gladenkovi.

Mercury in lichens and reindeer hair from Alaska: 2005–2007 pilot survey

Polar Record ◽  
2009 ◽  
Vol 45 (4) ◽  
pp. 368-374 ◽  
Author(s):  
James A. Lokken ◽  
Gregory L. Finstad ◽  
Kriya L. Dunlap ◽  
Lawrence K. Duffy
Keyword(s):  
Industrial Development ◽  
Fire Regime ◽  
The Arctic ◽  
Metal Exposure ◽  
Non Invasive ◽  
The North ◽  
Invasive Method ◽  
Seward Peninsula ◽  
Arctic Food Web ◽  
Flooding Events

ABSTRACTReindeer and caribou are terrestrial herbivores, that feed on lichens and are used for commercial and subsistence food products. Caribou are a key component of the arctic food web and the bioaccumulation of toxic contaminants, such as mercury (Hg), needs to be monitored to establish a baseline as the arctic environment is impacted by both climate change and future industrial development. A changing climate in Alaska is influencing plant species composition, fire regime, melting and flooding events, and thus, impacting Hg bioavailability in the food chain. Industrial development in Asia is also projected to increase the atmospheric global pool of Hg from increased coal combustion. Reindeer, a domesticated representative of caribou, can be used as a terrestrial biomonitor for metal exposure. In this study total mercury concentrations were measured in lichens and in hair of grazing reindeer on defined ranges across Alaska to establish a baseline for future hypothesis development and testing regarding Hg deposition. The Hg mean level for Seward Peninsula lichens on the Davis Range was 37.4 ng g−1, on the Gray Range 47.1 ng g−1, on the Kakaruk Range 42.2 ng g−1, and 41.7 ng g−1 on the Noyakuk Range. Lichen Hg levels on St. Lawrence Island was 46.6 ng g−1. Methyl mercury levels in lichens were found to be below detection levels. Reindeer grazing on these ranges had mean Hg hair levels of 14.6 ng g−1 (Davis herd), 83.4 ng g−1 (Gray herd), and 40.3 ng g−1 (Noyakuk herd). Two reindeer on St. Lawrence Island had an average of Hg of 43.0 ng g−1. Sample sizes ranged from n = 2 to n = 11. Hg mean levels in lichen on Seward Peninsula were higher than Hg means of two ranges in northern Mongolia. The Hg levels observed in this study indicate that Hg levels in Alaska are low at this time and pose no risk to the health of reindeer or human subsistence harvesters. A significant relationship between Hg in lichens on the ranges and the Hg in reindeer on those ranges has not been established. There are insufficient data on Hg levels in many areas of the north and more information is needed on location specific and time trends in Hg concentrations. Lichens and reindeer hair provide a good, non-invasive method of monitoring metal exposure changes in Alaskan ecosystems.

The influence of chick production on territory retention in Arctic-breeding Pacific and Yellow-billed loons

The Condor ◽  
2019 ◽  
Vol 121 (1) ◽  
Author(s):  
Brian D Uher-Koch ◽  
Kenneth G Wright ◽  
Joel A Schmutz
Keyword(s):  
Coastal Plain ◽  
Oil And Gas ◽  
Breeding Habitat ◽  
Retention Rates ◽  
The Arctic ◽  
Oil And Gas Development ◽  
Brood Rearing ◽  
Site Familiarity ◽  
Northern Alaska ◽  
The Impact

Abstract Adult birds may use the production of offspring as a measure of habitat quality when prospecting for territories, increasing competition for productive territories. We evaluated the impact of breeding success on territory retention of Pacific (Gavia pacifica) and Yellow-billed (G. adamsii) loons in the National Petroleum Reserve-Alaska on the Arctic Coastal Plain of northern Alaska using mark–resight data and multi-state modeling. We also used behavioral observations of brood-rearing adult loons to quantify the frequency of visits by prospecting loons. We hypothesized that increased competition for productive territories would result in a decrease in territory retention rates. Territory retention rates the year following successful breeding attempts were only slightly lower (0.90) than after failed breeding attempts (0.93), and few territories were consistently successful across years. Overall territory retention rates were high (0.92) and similar for both species, suggesting that adults were able to defend their territories successfully. Males had higher territory retention rates than females, but we found no influence of mass (a possible proxy for fighting ability) on territory retention. These observations, coupled with the high frequency of visits by prospecting loons, provide additional evidence that site familiarity may provide advantages to territory holders. Quantifying territory retention behaviors may also inform land management decisions for oil and gas development in areas where loons are present. High territory retention rates, frequency of visits by prospectors, and limited habitat where new territories can be established suggest that breeding habitat in northern Alaska is saturated and may be limiting Yellow-billed Loon populations. In contrast, Pacific Loons attempting to acquire a territory may be able to form new territories on smaller, unoccupied lakes.

scholarly journals The influence of local oil exploration and regional wildfires on summer 2015 aerosol over the North Slope of Alaska

2018 ◽  
Vol 18 (2) ◽  
pp. 555-570 ◽  
Author(s):  
Jessie M. Creamean ◽  
Maximilian Maahn ◽  
Gijs de Boer ◽  
Allison McComiskey ◽  
Arthur J. Sedlacek ◽  
...  
Keyword(s):  
Cloud Microphysics ◽  
Department Of Energy ◽  
The Arctic ◽  
North Slope ◽  
The North ◽  
The Us ◽  
Range Transport ◽  
North Slope Of Alaska ◽  
Atmospheric Radiation Measurement ◽  
Arctic Atmosphere

Abstract. The Arctic is warming at an alarming rate, yet the processes that contribute to the enhanced warming are not well understood. Arctic aerosols have been targeted in studies for decades due to their consequential impacts on the energy budget, both directly and indirectly through their ability to modulate cloud microphysics. Even with the breadth of knowledge afforded from these previous studies, aerosols and their effects remain poorly quantified, especially in the rapidly changing Arctic. Additionally, many previous studies involved use of ground-based measurements, and due to the frequent stratified nature of the Arctic atmosphere, brings into question the representativeness of these datasets aloft. Here, we report on airborne observations from the US Department of Energy Atmospheric Radiation Measurement (ARM) program's Fifth Airborne Carbon Measurements (ACME-V) field campaign along the North Slope of Alaska during the summer of 2015. Contrary to previous evidence that the Alaskan Arctic summertime air is relatively pristine, we show how local oil extraction activities, 2015's central Alaskan wildfires, and, to a lesser extent, long-range transport introduce aerosols and trace gases higher in concentration than previously reported in Arctic haze measurements to the North Slope. Although these sources were either episodic or localized, they serve as abundant aerosol sources that have the potential to impact a larger spatial scale after emission.

Outreach and disseminations activities in North Slope of Alaska: how to build trust between local communities and arctic researchers

2020 ◽  
Author(s):  
Kaare Sikuaq Erickson ◽  
Donatella Zona ◽  
Marco Montemayor ◽  
Walter Oechel ◽  
Terenzio Zenone
Keyword(s):  
Common Ground ◽  
Local Community ◽  
Local Communities ◽  
The Arctic ◽  
North Slope ◽  
Science Fair ◽  
Methane Cycle ◽  
The North ◽  
North Slope Of Alaska ◽  
The University

<p>The Alaskan Ukpeaġvik Iñupiat Corporation (UIC) is promoting and financilally supporting, with the contribution of the US National Science Foundation (NSF) and local organizations, outreach and dissemination events, in the form of science fair for the local communities in North Slope of Alaska. The science fair is part of a larger effort by UIC Science to bring coordination and collaboration to science outreach and engagement efforts across Arctic Alaska. The purpose is to provide a positive space for Arctic researchers and Arctic residents to meet, eat with each other, spend time, and to inspire the youth of the Arctic by providing fun and educational activities that are based in science and traditional knowledge. The Science Fair 2019 hosted by the Barrow Arctic Research Center (BARC) included three days of youth and family-friendly activities related to “Inupiat Knowledge about Plants” led by the College Inupiat Studies Department, “Eco-chains Activity” hosted by the North Slope Borough Office of Emergency Management, “Big Little World: Bugs Plants, and Microscopes” hosted by the National Ecological Observatory Network, “Microplastics in the Arctic” hosted by the North Slope Borough Department of Wildlife Management, “BARC Scavenger Hunt” hosted by UIC Science, “Our Role in the Carbon and Methane Cycle” hosted by the University of Texas El Paso (UTEP) and San Diego State University, and “How Permafrost Works” hosted by the University of Alaska, Fairbanks, Geophysical Institute. Each day hundreds of students, from both the local community and the science community came together to take part in mutually beneficial engagement: students from Utqiaġvik were excited about science and now know of the realistic and fulfilling careers in research that takes place in their backyard. The Utqiaġvik community members and elders now have a better idea of the breadth of research that takes place in and near their home. The locals, especially the elders, are very concerned about the drastic changes in our environment: scientists share these concerns, and the discussions during the fair was a chance to recognize this common ground. Breaking the ice between Arctic researchers and residents can lead to endless opportunities for collaboration, sharing ideas, and even lifelong friendships.</p><p> </p><p> </p>

scholarly journals Gender-specific perceptions of environmental problems by the indigenous peoples of the North of Russia

POPULATION ◽  
2020 ◽  
Vol 23 (2) ◽  
pp. 72-84
Author(s):  
Evgenia V. Potravnaya
Keyword(s):  
Indigenous Peoples ◽  
Industrial Development ◽  
Local Population ◽  
Environmental Problems ◽  
The Arctic ◽  
Full Account ◽  
Mining Companies ◽  
The North ◽  
The Impact ◽  
Gender Specific

The article deals with gender aspects of the perception of environmental problems by the population in the industrial development of the Arctic. There is substantiated the need to develop an ethno-social approach to the study of environmental problems in the framework of interaction between mining companies and the indigenous peoples of the North. It is proposed to conduct sociological surveys of the population when assessing the impact on the ethnological environment (ethnological expertise of the project). The experience of conducting such research to identify and assess gender-specific perceptions of environmental problems in the implementation of investment projects in the Arctic is shown. Based on the results of the empirical research in 2017–2019 on alluvial gold and diamond mining projects in the Northern regions of the Republic of Sakha (Yakutia), the main environmental problems that concern the local population are identified. These include: pollution of the environment in the territories of traditional nature use, decrease in the number of deer, reduction in the number of objects of traditional crafts, lack of a system for garbage removal and processing, climate change, and others. The article shows specifics of the environmental problems perception by the indigenous inhabitants of the North (Evenks, Dolgans, Yukagirs, Sakha) on a gender basis. It proposes a mechanism for taking into account the gender characteristics of the population’s behavior in the impact of economic activities on the environment in order to ensure gender equality by signing an agreement between mining companies and the local population on the socio-economic development of the territory. The concept of a gender approach to the account of ethnosocial and environmental aspects of territory development with the account the life cycle of the project is substantiated. Implementation of this approach will allow a more full account of the interests and needs of the indigenous population in the industrial development of the territory in the Arctic.

scholarly journals Patterns and persistence of hydrologic carbon and nutrient export from collapsing upland permafrost

2015 ◽  
Vol 12 (12) ◽  
pp. 3725-3740 ◽  
Author(s):  
B. W. Abbott ◽  
J. B. Jones ◽  
S. E. Godsey ◽  
J. R. Larouche ◽  
W. B. Bowden
Keyword(s):  
Aquatic Ecosystems ◽  
Inorganic Nitrogen ◽  
The Arctic ◽  
Nutrient Export ◽  
Initial Pulse ◽  
Dissolved Carbon ◽  
Carbon And Nitrogen ◽  
The North ◽  
North Slope Of Alaska ◽  
High Concentrations

Abstract. As high latitudes warm, vast stocks of carbon and nitrogen stored in permafrost will become available for transport to aquatic ecosystems. While there is a growing understanding of the potential effects of permafrost collapse (thermokarst) on aquatic biogeochemical cycles, neither the spatial extent nor temporal duration of these effects is known. To test hypotheses concerning patterns and persistence of elemental export from upland thermokarst, we sampled hydrologic outflow from 83 thermokarst features in various stages of development across the North Slope of Alaska. We hypothesized that an initial pulse of carbon and nutrients would be followed by a period of elemental retention during feature recovery, and that the duration of these stages would depend on feature morphology. Thermokarst caused substantial increases in dissolved organic carbon and other solute concentrations with a particularly large impact on inorganic nitrogen. Magnitude and duration of thermokarst effects on water chemistry differed by feature type and secondarily by landscape age. Most solutes returned to undisturbed concentrations after feature stabilization, but elevated dissolved carbon, inorganic nitrogen, and sulfate concentrations persisted through stabilization for some feature types, suggesting that aquatic disturbance by thermokarst for these solutes is long-lived. Dissolved methane decreased by 90% for most feature types, potentially due to high concentrations of sulfate and inorganic nitrogen. Spatial patterns of carbon and nutrient export from thermokarst suggest that upland thermokarst may be a dominant linkage transferring carbon and nutrients from terrestrial to aquatic ecosystems as the Arctic warms.

GEOLOGY AND GEOPHYSICS IN THE DISCOVERY OF GIANT OIL FIELDS

1973 ◽  
Vol 13 (1) ◽  
pp. 3
Author(s):  
P. E Kent
Keyword(s):  
North Sea ◽  
Oil Field ◽  
Petroleum Exploration ◽  
The Arctic ◽  
Continental Margins ◽  
Lateral Plate ◽  
Vertical Movements ◽  
The North ◽  
The North Sea ◽  
Northern Alaska

The paper gives the case histories of discovery in three major oil field areas-Iran, northern Alaska and the North Sea. These areas differ in their regional features and in the consequent requirements for geological and geophysical investigation and delineation. In Iran the earlier discoveries were based entirely on surface geology; geophysics became important with the need for deep survey. In northern Alaska structures mapped at surface gave only minor shows. Seismic surveys following geological deductions on reservoir development led to discovery of the giant Prudhoe Bay field near the Arctic coast. In the North Sea, in the much more complex extension of Permian-Mesozoic basins already well known on land, location of structures has been entirely by seismic survey.There is no close relation between the new Global Tectonics and the location of major oil field belts. The factors controlling the latter are multiple and complex. Resolution of the relative importance of vertical (epeirogenic) displacement as against the effect of lateral plate movement is nevertheless critical, particularly in Alaska.There is at present a large unresolved discrepancy between the times at which some continental margins developed (North Atlantic, East and West Indian Ocean) and with the physical evidence of sea floor spreading. In the three areas quoted, breakdown of the continental margins by vertical movements started in the Permian (—280 million years), but spreading is dated as beginning only in the late Cretaceous (—70 million years). It is the earlier movements, unexplained by current global theories, which have most relevance for petroleum exploration.

scholarly journals Policing the Arctic: The North Slope of Alaska

1994 ◽  
Vol 10 (2) ◽  
pp. 95-108
Author(s):  
Lawrence C. Trostle ◽  
John E. Angell
Keyword(s):  
The Arctic ◽  
North Slope ◽  
The North ◽  
North Slope Of Alaska

Off-shore oil and gas developments in Alaska: impacts and conflicts

Polar Record ◽  
1974 ◽  
Vol 17 (108) ◽  
pp. 255-275 ◽  
Author(s):  
George Rogers
Keyword(s):  
Construction Projects ◽  
Oil And Gas ◽  
Gulf Of Alaska ◽  
The United States ◽  
Gas Production ◽  
The Arctic ◽  
The North ◽  
North Slope Of Alaska ◽  
Arctic Coast ◽  
Prudhoe Bay

After three years' delay, work started early in 1974 on the construction of the trans-Alaska pipeline from Prudhoe Bay on the Arctic coast of Alaska 1 270 km to Valdez on the Gulf of Alaska (Ronhovde. 1974). Within three years, the line should be delivering 1.2 million barrels per day, a volume that will be increased eventually to a daily flow of 2 million barrels. Gas production on the North Slope of Alaska will probably be exported through Canada to the United States through a 4 184-km pipeline that will cost an estimated $5.7 billion and, if built, will be one of the largest construction projects ever undertaken; the system will also carry Canadian Arctic gas to southern markets. The size of these projects is in themselves impressive, and they have been spawned and are being launched in an atmosphere of controversy and confusion that, in its different way, is equally impressive.

Sign in / Sign up

Export Citation Format

Share Document