Results 11 to 20 of about 1,188,588 (171)

Hindcasts of passerine density in arctic and subarctic Alaska suggest noncomplementary responses to shrub expansion by tundra- and shrub-adapted species [PDF]

Arctic, Antarctic, and Alpine Research, 2022
Shrub expansion is among the most conspicuous of the warming-related phenomena occurring within tundra regions, but its effects on vertebrates are not well understood.
Jeremy D. Mizel, David K. Swanson
doaj   +3 more sources

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

Environmental Research Letters, 2011
Abstract 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) synthesize these findings, (2) present a conceptual framework that identifies mechanisms and constraints on shrub increase, (3) explore ...
Myers-Smith, Isla H., Forbes, Bruce C., Wilmking, Martin, Hallinger, Martin, Lantz, Trevor, Blok, Daan, Tape, Ken D., Macias-Fauria, Marc, Sass-Klaassen, Ute, Lévesque, Esther, Boudreau, Stéphane, Ropars, Pascale, Hermanutz, Luise, Trant, Andrew, Collier, Laura Siegwart, Weijers, Stef, Rozema, Jelte, Rayback, Shelly A., Schmidt, Niels Martin; id_orcid 0000-0002-4166-6218, Schaepman-Strub, Gabriela, Wipf, Sonja, Rixen, Christian, Ménard, Cécile B., Venn, Susanna, Goetz, Scott, Andreu-Hayles, Laia, Elmendorf, Sarah, Ravolainen, Virve, Welker, Jeffrey, Grogan, Paul, Epstein, Howard E., Hik, David S.   +31 more
core   +9 more sources

Implications of evergreen shrub expansion in the Arctic [PDF]

Journal of Ecology, 2018
Abstract Arctic shrub expansion is occurring across large parts of the tundra biome and its potential ecological repercussions have been widely discussed. But while the term “shrub expansion” often implicitly refers to an increase in tall, deciduous species such as ...
Tage Vowles, Robert G. Björk
openaire   +2 more sources

Shrub expansion modulates belowground impacts of changing snow conditions in alpine grasslands [PDF]

Ecology Letters, 2021
Abstract Climate change is disproportionately impacting mountain ecosystems, leading to large reductions in winter snow cover, earlier spring snowmelt and widespread shrub expansion into alpine grasslands. Yet, the combined effects of shrub expansion and changing snow conditions on abiotic and biotic soil properties remains poorly ...
Broadbent, Arthur A.D., Bahn, Michael, Pritchard, William J., Newbold, Lindsay K., Goodall, Tim, Guinta, Andrew, Snell, Helen S.K., Cordero, Irene, Michas, Antonios, Grant, Helen K., Soto, David X., Kaufmann, Rüdiger, Schloter, Michael, Griffiths, Robert I., Bardgett, Richard D.   +14 more
openaire   +8 more sources

Patterns and processes of global shrub expansion

Progress in Physical Geography: Earth and Environment, 2011
Shrub expansion is a global phenomenon that is occurring on savannas, rangelands, and grasslands. In addition, this is an increasingly documented occurrence in the Arctic. Numerous recent studies have strived to pinpoint the drivers of this phenomenon, quantify the changes, and understand their implications for regional and global land use, disturbance
Adam T. Naito, David M. Cairns
openaire   +2 more sources

Tall and Low Shrub-Adapted Passerines Respond Differently to Shrub Expansion in Arctic and Subarctic Alaska [PDF]

ARCTIC
The expansion of deciduous shrubs is among the most conspicuous and widespread of the phenomena affecting tundra regions under a warming climate. While this process is expected to affect the distributions of terrestrial vertebrates, empirical assessments of responses to shrub expansion are rare, particularly for passerine birds.
Mizel, Jeremy D.
core   +3 more sources

Shrub expansion in maritime forest responding to sea level rise

Frontiers in Forests and Global Change, 2023
Expansion of shrubs has been observed in a number of biomes and in response to diverse global change drivers. Noting shrub expansion in coastal forests affected by sea level rise, we began to monitor shrub populations in a transgressing loblolly pine ...
Rheya Sward, Abigail Philbrick, Jonah Morreale, Jonah Morreale, Cora Johnston Baird, Keryn Gedan   +5 more
doaj   +2 more sources

Overwinter Warming Effects of Shrub Expansion in Arctic Permafrost Region

Earth's Future
Numerous studies have shown that shrub cover in high‐latitude permafrost regions is increasing and the expansion is likely to continue in response to sustained temperature rise.
Xiaohe Li, Xiyan Xu, Gensuo Jia, Tao Bao, Rongrong Xu   +4 more
doaj   +2 more sources

Willow drives changes in arthropod communities of northwestern Alaska: ecological implications of shrub expansion

Ecosphere, 2021
Arthropods serve as complex linkages between plants and higher‐level predators in Arctic ecosystems and provide key ecosystem services such as pollination and nutrient cycling. Arctic plant communities are changing as tall woody shrubs expand onto tundra,
Molly T. McDermott, Patricia Doak, Colleen M. Handel, Greg A. Breed, Christa P. H. Mulder   +4 more
doaj   +2 more sources

Patterned-ground facilitates shrub expansion in Low Arctic tundra

Environmental Research Letters, 2013
Recent expansion of tall shrubs in Low Arctic tundra is widely seen as a response to climate warming, but shrubification is not occurring as a simple function of regional climate trends.
Gerald V Frost, Howard E Epstein, Donald A Walker, Georgiy Matyshak, Ksenia Ermokhina   +4 more
doaj   +2 more sources