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Search: WFRF:(Isaksen Anders)

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1.
  • Halbritter, Aud H., et al. (author)
  • Plant trait and vegetation data along a 1314 m elevation gradient with fire history in Puna grasslands, Perú
  • 2024
  • In: SCIENTIFIC DATA. - 2052-4463. ; 11:1
  • Journal article (peer-reviewed)abstract
    • Alpine grassland vegetation supports globally important biodiversity and ecosystems that are increasingly threatened by climate warming and other environmental changes. Trait-based approaches can support understanding of vegetation responses to global change drivers and consequences for ecosystem functioning. In six sites along a 1314 m elevational gradient in Puna grasslands in the Peruvian Andes, we collected datasets on vascular plant composition, plant functional traits, biomass, ecosystem fluxes, and climate data over three years. The data were collected in the wet and dry season and from plots with different fire histories. We selected traits associated with plant resource use, growth, and life history strategies (leaf area, leaf dry/wet mass, leaf thickness, specific leaf area, leaf dry matter content, leaf C, N, P content, C and N isotopes). The trait dataset contains 3,665 plant records from 145 taxa, 54,036 trait measurements (increasing the trait data coverage of the regional flora by 420%) covering 14 traits and 121 plant taxa (ca. 40% of which have no previous publicly available trait data) across 33 families.
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2.
  • Jansson, Johan, 1974- (author)
  • Internetbranschen i Stockholms innerstad : En studie av agglomerationsfördelar, sociala nätverksrelationer och informationsflöden
  • 2005
  • Doctoral thesis (other academic/artistic)abstract
    • This thesis deals with questions concerning spatial agglomeration of economic activities. The object of study is the Internet industry in central Stockholm. Through the use of statistical data and an interview study the Internet industry is described, measured, and analyzed through theories concerning agglomerations, social network relations, and knowledge and information flows. These theories are interpreted through five agglomeration themes related to the role of customers, subcontractors and partners, competitors, financing, and labour market, respec-tively.The research has recognized the importance of proximity to create and maintain social networks, and to spread information and knowledge, especially tacit knowledge. The thesis also shows how social networks, and information and knowledge flows have an essential role in all the five agglomeration themes that are analyzed. The results of this analysis show that the proximity to customers is the most important factor for the location of the Internet indus-try. Also, the local labour market and access to suppliers and partners are important factors. Competitors and rivals have a role to play when it comes to the diffusion of knowledge and information, although its importance as a location factor is hard to estimate. The analysis of the firms’ financing demonstrate that this factor hardly has been of crucial importance for the location of the Internet industry, but access to (venture) capital might have been of indirect importance for the location and the pace of the development of the Internet industry.
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