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https://hdl.handle.net/10316/114694
Título: | Global negative effects of drought on instream invertebrate communities | Autor: | Yang, Qiao Ferreira, Verónica Wu, Qiqian Heděnec, Petr Day, Yuan-Ji Yuan, Chaoxiang Peng, Yan Wu, Fuzhong Yue, Kai |
Palavras-chave: | Biomass; density; diversity; taxonomic level; stream characteristic | Data: | 2023 | Editora: | Taylor & Francis | Projeto: | CEECIND/02484/2018 UIDP/04292/2020 LA/P/0069/2020 |
Título da revista, periódico, livro ou evento: | Journal of Freshwater Ecology | Volume: | 38 | Número: | 1 | Resumo: | Global climate change has led to more frequent and severe droughts, which can negatively affect instream invertebrate communities, but we lack a perspective on the global patterns and drivers of such drought effects. Here, using meta-analysis, we synthesized 997 paired observations extracted from 94 peer-reviewed publications to assess how drought affects the biomass, density, taxonomic richness, and diversity (Shannon–Wiener, Simpson, and Pielou indices) of instream invertebrates at a global scale. We found that (i) drought significantly decreased instream invertebrate density and taxonomic richness by an average of 4.9 and 5.0%, respectively, had marginal negative effects on Shannon–Wiener index, but did not affect biomass, Simpson index or Pielou index; (ii) the effects of drought on instream invertebrate biomass, density, and diversity were not affected by taxonomic level, indicating the robustness of our results; and (iii) stream water physiochemical characteristics such as water flow velocity, pH, conductivity, discharge, total nitrogen concentration, and chlorophyll-a concentration were important moderator variables of drought effects on instream invertebrate communities. Overall, our results clearly showed the global patterns and driving factors of drought effects on instream invertebrate biomass, density, richness, and diversity, which helps scientists better understand the responses of instream invertebrate communities under ongoing global climate change. | URI: | https://hdl.handle.net/10316/114694 | ISSN: | 0270-5060 2156-6941 |
DOI: | 10.1080/02705060.2023.2203728 | Direitos: | openAccess |
Aparece nas coleções: | I&D MARE - Artigos em Revistas Internacionais FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Global-negative-effects-of-drought-on-instream-invertebrate-communitiesJournal-of-Freshwater-Ecology.pdf | 1.81 MB | Adobe PDF | Ver/Abrir |
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