Results 41 to 50 of about 51,337 (268)

Comparing autumn duck use of intensely managed wetlands in Michigan using a novel approach

The Journal of Wildlife Management, EarlyView.
Camera traps, a relatively novel method for assessing waterfowl use of wetlands, show ducks in southeastern Michigan are influenced by hunting disturbance, vegetation type, season progression, and diel period. Abstract Socioeconomic value derived from duck hunting has contributed to autumn habitat use becoming a particular focus for the natural ...
Trey McClinton, David R. Luukkonen, Daniel B. Hayes   +2 more
wiley   +1 more source

Privacy at the Margins| The Poverty of Privacy: Understanding Privacy Trade-Offs From Identity Infrastructure Users in India

International Journal of Communication, 2018
What trade-offs in privacy do low-income people make in dealing with state identity systems, and on what basis? We examine perspectives on Aadhaar, a national identification system for Indian residents that assigns a 12-digit number based on biometric ...
Janaki Srinivasan, Savita Bailur, Emrys Schoemaker, Sarita Seshagiri   +3 more
doaj  

Annual and monthly range fidelity of female boreal woodland caribou in respons to petroleum development

Rangifer, 2010
Petroleum-sector development in northern Alberta, Canada has been implicated as one factor influencing the decline of boreal woodland caribou (Rangifer tarandus caribou).
Boyan V. Tracz, Jalene M. LaMontagne, Erin M. Bayne, Stan Boutin   +3 more
doaj   +1 more source

Evaluating Differences in Household Subsistence Harvest Patterns between the Ambler Project and Non-Project Zones [PDF]

, 2016
Western Alaska is one of largest inhabited, roadless areas in North America and, indeed, the world. Access, via a new road that would transverse Gates of the Arctic National Park and Preserve (GAAR), to a mining district in a vast roadless section of ...
Greenberg, Joshua, Guettabi, Mouhcine, Joly, Kyle, Little, Joseph   +3 more
core  

Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities [PDF]

, 2011
Part of Focus on Dynamics of Arctic and Sub-Arctic Vegetation Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1)
Andreu-Hayles, Laia, Blok, Daan, Boudreau, Stephane, Collier, Laura Siegwart, Elmendorf, Sarah, Epstein, Howard E., Forbes, Bruce C., Goetz, Scott, Grogan, Paul, Hallinger, Martin, Hermanutz, Luise, Hik, David S., Lantz, Trevor, Levesque, Esther, Macias-Fauria, Marc, Menard, Cecile B, Myers-Smith, Isla, Ravolainen, Virve, Rayback, Shelly A, Rixen, Christian, Ropars, Pascale, Rozema, Jelte, Sass-Klaassen, Ute, Schaepman-Strub, Gabriela, Schmidt, Niels Martin, Tape, Ken D, Trant, Andrew, Venn, Susanna, Weijers, Niels Martin, Welker, Jeffrey, Wilmking, Martin, Wipf, Sonja   +31 more
core   +3 more sources

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

Land Degradation &Development, EarlyView.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik, Krystyna Kozioł, Marcin Frankowski, Marta Jakubiak, Kamil Nowiński, Mariusz Jędrysek, Danuta Szumińska, Żaneta Polkowska   +7 more
wiley   +1 more source

Lipid correction of hydrogen stable isotope ratios in fish

Limnology and Oceanography: Methods, EarlyView.
Abstract Lipids are known to affect stable isotope ratio of organisms, especially δ13C values, and simple arithmetic lipid‐correction procedures have been developed based on the carbon to nitrogen ratio (C : N) that is a proxy for lipid content. Equivalent issues will likely arise with the increasing use of hydrogen isotopes in ecology, but as yet no ...
Kang Wang, Mikko Kiljunen, Jos Schilder, Heikki Hämäläinen, Kimmo K. Kahilainen, Roger I. Jones   +5 more
wiley   +1 more source

Neo‐Taphonomic Analysis of Prey Bone Remains Accumulated by Golden Eagle (Aquila chrysaetos): A Case of Nests in Southern France

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT The golden eagle (Aquila chrysaetos) nests in rock cavities where it accumulates prey bone remains during the breeding season. Because nests can be reoccupied from year to year, these faunal elements can form remarkable bone accumulations and, in the sub‐fossil record, be mixed with assemblages derived from human or other predator activities ...
Juliette Ripond, Véronique Laroulandie, Jean‐Baptiste Mallye, Renaud Nadal, Patrick Bayle, Christian Itty   +5 more
wiley   +1 more source

Managing fire for woodland caribou in Jasper and Banff National Parks

Rangifer, 2007
Woodland caribou (Rangifer tarandus caribou) populations in Jasper (JNP) and Banff National Parks (BNP) have declined since the 1970s, coincident with reduced fire activity in both parks, relative to historic levels.
Landon Shepherd, Fiona Schmiegelow, Ellen Macdonald   +2 more
doaj   +1 more source

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

Oikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis, Johan Olofsson, Henni Ylänne, Michael J. Gundale, Reiner Giesler, Maja K. Sundqvist   +5 more
wiley   +1 more source