| Title | Causal networks of phytoplankton diversity and biomass are modulated by environmental context |
| Abstract | Untangling causal links and feedbacks among biodiversity, ecosystem functioning, and environmental factors is challenging due to their complex and context-dependent interactions (e.g., a nutrient-dependent relationship between diversity and biomass). Consequently, studies that only consider separable, unidirectional effects can produce divergent conclusions and equivocal ecological implications. To address this complexity, we use empirical dynamic modeling to assemble causal networks for 19 natural aquatic ecosystems (N24 degrees similar to N58 degrees) and quantified strengths of feedbacks among phytoplankton diversity, phytoplankton biomass, and environmental factors. Through a cross-system comparison, we identify macroecological patterns; in more diverse, oligotrophic ecosystems, biodiversity effects are more important than environmental effects (nutrients and temperature) as drivers of biomass. Furthermore, feedback strengths vary with productivity. In warm, productive systems, strong nitrate-mediated feedbacks usually prevail, whereas there are strong, phosphate-mediated feedbacks in cold, less productive systems. Our findings, based on recovered feedbacks, highlight the importance of a network view in future ecosystem management. |
| Source | Nature communications 13 (1) |
| Keywords | aquatic ecosystemsdiversityalgal nutrients |
| Journal | Nature communications |
| Editor | Nature Publishing Group., London, Regno Unito |
| Year | 2022 |
| Type | Articolo in rivista |
| DOI | 10.1038/s41467-022-28761-3 |
| Authors | Chang, Chun-Wei; Miki, Takeshi; Ye, Hao; Souissi, Sami; Adrian, Rita; Anneville, Orlane; Agasild, Helen; Ban, Syuhei; Be'eri-Shlevin, Yaron; Chiang, Yin-Ru; Feuchtmayr, Heidrun; Gal, Gideon; Ichise, Satoshi; Kagami, Maiko; Kumagai, Michio; Liu, Xin; Matsuzaki, Shin-Ichiro S.; Manca, Marina M.; Noges, Peeter; Piscia, Roberta; Rogora, Michela; Shiah, Fuh-Kwo; Thackeray, Stephen J.; Widdicombe, Claire E.; Wu, Jiunn-Tzong; Zohary, Tamar; Hsieh, Chih-hao |
| Text | 466060 2022 10.1038/s41467 022 28761 3 ISI Web of Science WOS 000764258100001 aquatic ecosystems diversity algal nutrients Causal networks of phytoplankton diversity and biomass are modulated by environmental context Chang, Chun Wei; Miki, Takeshi; Ye, Hao; Souissi, Sami; Adrian, Rita; Anneville, Orlane; Agasild, Helen; Ban, Syuhei; Be eri Shlevin, Yaron; Chiang, Yin Ru; Feuchtmayr, Heidrun; Gal, Gideon; Ichise, Satoshi; Kagami, Maiko; Kumagai, Michio; Liu, Xin; Matsuzaki, Shin Ichiro S.; Manca, Marina M.; Noges, Peeter; Piscia, Roberta; Rogora, Michela; Shiah, Fuh Kwo; Thackeray, Stephen J.; Widdicombe, Claire E.; Wu, Jiunn Tzong; Zohary, Tamar; Hsieh, Chih hao Natl Ctr Theoret Sci; Acad Sinica; Ryukoku Univ; Natl Taiwan Univ; Ryukoku Univ; Univ Florida; Univ Lille; Leibniz Inst Freshwater Ecol Inland Fisheries; Free Univ Berlin; Univ Savoie Mt Blanc; Estonian Univ Life Sci; Univ Shiga Prefecture; Israel Oceanog Limnol Res; Acad Sinica; UK Ctr Ecol Hydrol; Lake Biwa Environm Res Inst; Yokohama Natl Univ; Toho Univ; Ritsumeikan Univ; Natl Inst Environm Studies; CNR Water Res Inst IRSA; Plymouth Marine Lab; Natl Taiwan Univ Untangling causal links and feedbacks among biodiversity, ecosystem functioning, and environmental factors is challenging due to their complex and context dependent interactions e.g., a nutrient dependent relationship between diversity and biomass . Consequently, studies that only consider separable, unidirectional effects can produce divergent conclusions and equivocal ecological implications. To address this complexity, we use empirical dynamic modeling to assemble causal networks for 19 natural aquatic ecosystems N24 degrees similar to N58 degrees and quantified strengths of feedbacks among phytoplankton diversity, phytoplankton biomass, and environmental factors. Through a cross system comparison, we identify macroecological patterns; in more diverse, oligotrophic ecosystems, biodiversity effects are more important than environmental effects nutrients and temperature as drivers of biomass. Furthermore, feedback strengths vary with productivity. In warm, productive systems, strong nitrate mediated feedbacks usually prevail, whereas there are strong, phosphate mediated feedbacks in cold, less productive systems. Our findings, based on recovered feedbacks, highlight the importance of a network view in future ecosystem management. 13 Published version pdf articolo s41467 022 28761 3.pdf Articolo in rivista Nature Publishing Group. 2041 1723 Nature communications Nature communications Nature communications marinamarcella.manca MANCA MARINA MARCELLA roberta.piscia PISCIA ROBERTA michela.rogora ROGORA MICHELA |
