18
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Savanna woody encroachment is widespread across three continents

      , , ,
      Global Change Biology
      Wiley-Blackwell

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Tropical savannas are a globally extensive biome prone to rapid vegetation change in response to changing environmental conditions. Via a meta-analysis, we quantified savanna woody vegetation change spanning the last century. We found a global trend of woody encroachment that was established prior the 1980s. However, there is critical regional variation in the magnitude of encroachment. Woody cover is increasing most rapidly in the remaining uncleared savannas of South America, most likely due to fire suppression and land fragmentation. In contrast, Australia has experienced low rates of encroachment. When accounting for land use, African savannas have a mean rate annual woody cover increase two and a half times that of Australian savannas. In Africa, encroachment occurs across multiple land uses and is accelerating over time. In Africa and Australia, rising atmospheric CO2 , changing land management and rainfall are likely causes. We argue that the functional traits of each woody flora, specifically the N-fixing ability and architecture of woody plants, are critical to predicting encroachment over the next century and that African savannas are at high risk of widespread vegetation change.

          Related collections

          Most cited references47

          • Record: found
          • Abstract: not found
          • Article: not found

          Estimating historical changes in global land cover: Croplands from 1700 to 1992

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

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

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Conservation of the Brazilian Cerrado

                Bookmark

                Author and article information

                Journal
                Global Change Biology
                Glob Change Biol
                Wiley-Blackwell
                13541013
                January 2017
                January 2017
                : 23
                : 1
                : 235-244
                Article
                10.1111/gcb.13409
                27371937
                9ebe40c8-e0cd-4a4e-b3ca-daa808d4c808
                © 2017

                http://doi.wiley.com/10.1002/tdm_license_1

                History

                Comments

                Comment on this article