The Palaearctic steppe biome: a new synthesis
By K. Wesche, Didem Ambarlı, Johannes Kamp, P. Török, J. Treiber, Jürgen Dengler. Biodiversity and Conservation, 2016
242 citations recorded by the source corpus.
The Palaearctic steppes range from the Mediterranean basin towards China, forming one of the largest continuous terrestrial biomes. The literature on steppe ecology and conservation is vast but scattered and often not available in English. We provide a review of some key topics based on a new definition of steppes, which includes also Mediterranean steppes and alpine rangelands of the Asian Highlands. Revisiting the terrestrial ecoregions of the world, we estimate that the Palaearctic steppe biome extends over ca. 10.5 million km2. Major chorological regions differ in their macroclimatic niche with a clear distinction between Middle Asia with its winter precipitation and the Central Asian summer-rain regions of the Mongolian plateau and of Tibet. Steppe soils store large amounts of carbon, yet the sequestration potential is debated and depends on land use. Major physiognomic-ecological steppe types include forest-, typical-, desert-, and alpine-steppe, which vary in the importance of grasses, mainly C3 species. The steppes host a specialised fauna, and Middle Asia, Tibet, and especially Mongolia, have large herds of migrating ungulates. The share of pristine and protected sites is low in the steppe regions, with conversion into croplands being the most important land use impact in Europe, Middle Asia, and the Mediterranean, while grazing has a severe impact in some parts of Mongolia and Tibet. There are major gaps in our knowledge on: (1) the effects of climate change on the crucial seasonal patterns; (2) the role of steppe soils in the global carbon budget; and (3) the ecology and distribution of most animal groups except vertebrates.
Subfields: Ecology, Management, Monitoring, Policy and Law, Plant Science
View Paper: https://www.semanticscholar.org/paper/7601eda592e64ca8f7c019c32f7b3966314ea7a7
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Citations in the corpus
- Ecological theory provides strong support for habitat restoration (2017, background): “First, they cover a wide range of habitats characterised by diverse environmental conditions andhave a considerable extent in the Palaearctic realm (Dengler et al., 2014; Dixon et al., 2014; Wesche et al., 2016).”