University of Colorado, Institute of Arctic and Alpine Research, BoulderHalfpenny JC &Southwick CH (1982) Small mammal herbivores of the Colorado alpine tundra. In Halfpenny JC (Ed) Ecological Studies in the Colorado Alpine (pp 113–123). University of Colorado, Institute of Arctic and Alpine ...
Vertebrate Herbivores and Ecosystem Control: Cascading Effects of Faeces on Tundra Ecosystems 来自 onAcademic 喜欢 0 阅读量: 61 作者:RVD Wal,RD Bardgett,HA Stien DOI: 10.2307/3683835 年份: 2004 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 Semantic Scholar (全网免费下载) ResearchGate ...
et al. Large-scale impacts of herbivores on the structural diversity of African savannas. Proc. Natl Acad. Sci. USA 106, 4947–4952 (2009). Article CAS PubMed PubMed Central Google Scholar Olofsson, J. et al. Herbivores inhibit climate-driven shrub expansion on the tundra. Glob. Change ...
Responses of moist non-acidic arctic tundra to altered environment: productivity, biomass, and species richness In arctic Alaska, researchers have manipulated air temperature, light availability, and soil nutrient availability in several tundra communities over the p... L Gough,SE Hobbie - 《Oikos》...
Prehistoric and recent extinctions of large-bodied terrestrial herbivores had significant and lasting impacts on Earth’s ecosystems due to the loss of their distinct trait combinations. The world’s surviving large-bodied avian and mammalian herbivores
would free up nutrients and space, allowing for a greater variety of plants to thrive in the ecosystem overall. In contrast, herbivores in regions with low plant biomass—such as tundras and deserts—would eat whatever they could find, driving down plantdiversityin the nutrient-strapped ...
Our results show that the abundance of the dominant shrub, Betula nana, has increased during the last decade, but that the increase was more pronounced when herbivores were excluded. Reindeer have the largest effect on shrubs in tundra, while voles and lemmings have a larger effect in the ...
However, very little is known of its functional role in shaping forest ecosystems and maintaining open habitats. Large megafauna in the northern hemisphere were generally linked to a tundra-steppe environment (Allen et al., 2010, Bocherens et al., 2015). As shown by historical reconstruction, ...
(1) The seasonal patterns of carbohydrate, lipid, cellulose, hemicellulose and lignin were examined in plants of major tundra growth forms: deciduous shrub, evergreen shrub, deciduous forb, tussock graminoid, moss and lichen. (2) Stems o... FSC Iii,MKA Johnson - 《Journal of Ecology》 被引...
"OK, Holmes, Let me catch up with our list of what we have so far. We know that the tundra had better drained soils and was more productive and that the distinction we currently see between grassland and woodland was much less pronounced. Might that indicate that those biomes were more ...