Complete chloroplast genomes of four Triumfetta species obtained from herbarium specimens: comparative analysis and identification of a synapomorphic inversion. [PDF]
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Expansive shrubs: Expansion factors and ecological impacts in northern Ethiopia
Journal for Nature Conservation, 2021Abstract Expansive native species have the same ecological and economic consequences as invasive alien species through the reduction of ecosystem goods and services. We assessed human disturbance and environmental factors that are contributing to the expansion of two expansive shrubs, Cadia purpurea and Tarchonanthus camphoratus in Desa’a dry ...
Mebrahtu Haile +3 more
openaire +1 more source
Expansion of deciduous tall shrubs but not evergreen dwarf shrubs inhibited by reindeer in Scandes mountain range [PDF]
Journal of Ecology, 2017 Summary One of the most palpable effects of warming in Arctic ecosystems is shrub expansion above the tree line. However, previous studies have found that reindeer can influence plant community responses to warming and inhibit shrubification of the tundra.
Robert G. Björk +2 more
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Tall shrub and tree expansion in Siberian tundra ecotones since the 1960s
Global Change Biology, 2014Abstract Circumpolar expansion of tall shrubs and trees into Arctic tundra is widely thought to be occurring as a result of recent climate warming, but little quantitative evidence exists for northern Siberia, which encompasses the world's largest forest‐tundra ecotonal belt.
Gerald V. Frost, Howard E. Epstein
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Herbivores inhibit climate-driven shrub expansion on the tundra
Global Change Biology, 2009AbstractRecent Pan‐Arctic shrub expansion has been interpreted as a response to a warmer climate. However, herbivores can also influence the abundance of shrubs in arctic ecosystems. We addressed these alternative explanations by following the changes in plant community composition during the last 10 years in permanent plots inside and outside ...
Philip Hulme +2 more
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Variability in the expansion of trees and shrubs in boreal Alaska
Ecology, 2019AbstractThe expansion of shrubs and trees across high‐latitude ecosystems is one of the most dramatic ecological manifestations of climate change. Most of the work quantifying these changes has been done in small areas and over relatively recent time scales.
Jedediah F. Brodie +3 more
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A greener Greenland? Climatic potential and long-term constraints on future expansions of trees and shrubs [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2013 Warming-induced expansion of trees and shrubs into tundra vegetation will strongly impact Arctic ecosystems. Today, a small subset of the boreal woody flora found during certain Plio-Pleistocene warm periods inhabits Greenland. Whether the twenty-first century warming will induce a re-colonization of a rich woody flora depends on the roles of climate ...
Toke T. Hoye +2 more
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The evidence for shrub expansion in Northern Alaska and the Pan-Arctic
Global Change Biology, 2006AbstractOne expected response to climate warming in the Arctic is an increase in the abundance and extent of shrubs in tundra areas. Repeat photography shows that there has been an increase in shrub cover over the past 50 years in northern Alaska. Using 202 pairs of old and new oblique aerial photographs, we have found that across this region spanning ...
Ken D. Tape
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Shrub cover in northern Nunavik: can herbivores limit shrub expansion?
Polar Biology, 2014Recent climate changes have increased the primary productivity of many Arctic and subarctic regions. Erected shrub has been shown to increase in abundance over the last decades in northern regions in response to warmer climate. At the same time, caribou herds are declining throughout the circumboreal regions.
Sabrina Plante +6 more
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