Results 71 to 80 of about 83,284 (295)
Alder Distribution and Expansion Across a Tundra Hillslope: Implications for Local N Cycling
Frontiers in Plant Science, 2019 Increases in the availability of nitrogen (N) may have consequences for plant growth and nutrient cycling in N-limited tundra plant communities. We investigated the impact alder (Alnus viridis spp. fruticosa), an N-fixing deciduous shrub, has on tundra N
Verity G. Salmon +7 more
doaj +1 more source
The effect of a permafrost disturbance on growing-season carbon-dioxide fluxes in a high Arctic tundra ecosystem [PDF]
Biogeosciences, 2016 Soil carbon stored in high-latitude permafrost landscapes is threatened by warming and could contribute significant amounts of carbon to the atmosphere and hydrosphere as permafrost thaws.
A. E. Cassidy +2 more
doaj +1 more source
EFFECTS OF LAND COVER, WATER REDISTRIBUTION, AND TEMPERATURE ON ECOSYSTEM PROCESSES IN THE SOUTH PLATTE BASIN [PDF]
, 1998 Over one‐third of the land area in the South Platte Basin of Colorado, Nebraska, and Wyoming, has been converted to croplands. Irrigated cropland now comprises 8% of the basin, while dry croplands make up 31%.
Band, Larry E. +5 more
core +1 more source
Transitions of social-ecological subsistence systems in the Arctic [PDF]
, 2017 Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A. +3 more
core +4 more sources
Seasonal variation of leaf functional traits in sub‐Arctic plants
Oikos, EarlyView.Leaf functional traits are informative of plant fitness and functions in ecosystems. These functional traits and their variation across geographic extents are much studied but less is known about their temporal variation over a growing season. Here, we provide an analysis of the seasonal variation in six leaf functional traits of 11 sub‐Arctic vascular
Pekka Niittynen +2 more
wiley +1 more source
Arctic, Antarctic, and Alpine Research, 2020 The net change in the carbon inventory of arctic tundra remains uncertain as global warming leads to shifts in arctic water and carbon cycles. To better understand the response of arctic tundra carbon to changes in winter precipitation amount, we ...
Karyn C. DeFranco +5 more
doaj +1 more source
People and Nature, EarlyView.Abstract For many people around the world, especially in Indigenous communities, seasonal changes affect the availability and desirability of different types of food. Assessing the relationship between seasonality, sociocultural preferences and hunting patterns is vital for understanding how these populations harness seasonal food production dynamics ...
Emerson Arehart +6 more
wiley +1 more source
, 1979 Management objectives of some revegetation plantings encourage the use of native species. Where reinstatement of a native flora is desired, the inclusion of suitable native materials can hasten the process.
Mitchell, Wm. W.
core
High daily energy expenditure of incubating shorebirds on High Arctic tundra: a circumpolar study [PDF]
, 2003 1. Given the allometric scaling of thermoregulatory capacity in birds, and the cold and exposed Arctic environment, it was predicted that Arctic-breeding shorebirds should incur high costs during incubation.
Amat +38 more
core +4 more sources
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Across circumpolar permafrost regions, climate change is destabilizing ice‐rich hillslopes, increasing the frequency and magnitude of thaw‐driven mass wasting. This paper reviews recent studies (2013–2024) on thaw‐driven mass wasting, focusing on the processes, morphology and trajectories of geomorphic change and their implications for ...
J. M. Young +5 more
wiley +1 more source