@Article{DibPirCasBozFar:2020:BiEfEc,
               author = "Dib, Viviane and Pires, Aliny P. F. and Casa Nova, Clarice and 
                         Bozelli, Reinaldo L. and Farjalla, Vin{\'{\i}}cius",
          affiliation = "{Universidade Federal do Rio de Janeiro (UFRJ)} and {Universidade 
                         Federal do Rio de Janeiro (UFRJ)} and {Universidade Federal do Rio 
                         de Janeiro (UFRJ)} and {Universidade Federal do Rio de Janeiro 
                         (UFRJ)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Biodiversity-mediated effects on ecosystem functioning depend on 
                         the type and intensity of environmental disturbances",
              journal = "Oikos",
                 year = "2020",
               volume = "129",
               number = "3",
                pages = "433--443",
                month = "Mar.",
             keywords = "biodiversity-mediated effects, ecosystem functioning, 
                         environmental disturbance, grazing rates, zooplankton community.",
             abstract = "Environmental disturbances affect ecosystem functioning through 
                         changes in organisms' metabolism (direct effect) and biodiversity 
                         loss (indirect or biodiversity-mediated effect). It is still a 
                         challenge to separate direct and biodiversity-mediated effects of 
                         environmental changes on ecosystem functioning due to the 
                         difficulties in isolating 'true' biodiversity loss effects. 
                         Furthermore, it is still unclear whether biodiversity-mediated 
                         effects are as important as direct effects. In this study, we 
                         performed an experiment in artificial microcosms to disentangle 
                         biodiversity-mediated and direct effects of two major 
                         environmental disturbances on the functioning of aquatic 
                         ecosystems: increases in temperature and salinity. The ecosystem 
                         function analyzed was the microalgae predation by the zooplankton 
                         community (zooplankton grazing rates). Temperature and salinity 
                         increases affected the zooplankton grazing rates due to changes in 
                         community composition and abundance, as well as organism 
                         performance. The impact of salinity changes on community structure 
                         was higher than that of temperature; however, the importance of 
                         biodiversity-mediated and direct effects was similar to regulating 
                         the ecosystem functioning, albeit they have presented different 
                         directions and magnitude across the treatments. At a moderate 
                         level of temperature increase, we observed that the 
                         biodiversity-mediated effect was more relevant than the direct 
                         effect, with negative effects on the overall grazing rates. Our 
                         results suggest that disturbances can affect the functioning of 
                         aquatic environments through a set of complex biological 
                         mechanisms that balance direct and biodiversity-mediated effects. 
                         We concluded that the relative importance of biodiversity-mediated 
                         effects depends on the type and intensity of the disturbance.",
                  doi = "10.1111/oik.06768",
                  url = "http://dx.doi.org/10.1111/oik.06768",
                 issn = "0030-1299",
             language = "en",
           targetfile = "dib_biodiversity.pdf",
        urlaccessdate = "28 abr. 2024"
}