Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage
In aquatic ecosystems, the dynamics of ecological parameters play an important role in community organization. To understand the changes in the phytoplankton community structure in karstic reservoirs, the Hongfeng reservoir in Guizhou plateau was monitored monthly from 2016 to 2019. The results show...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-05-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X22002771 |
| _version_ | 1818274711826595840 |
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| author | Yiming Ma Qiuhua Li Shaopu Pan Chen Liu Mengshu Han Anton Brancelj |
| author_facet | Yiming Ma Qiuhua Li Shaopu Pan Chen Liu Mengshu Han Anton Brancelj |
| author_sort | Yiming Ma |
| collection | DOAJ |
| description | In aquatic ecosystems, the dynamics of ecological parameters play an important role in community organization. To understand the changes in the phytoplankton community structure in karstic reservoirs, the Hongfeng reservoir in Guizhou plateau was monitored monthly from 2016 to 2019. The results showed that the dominant organisms in phytoplankton comprised five phyla and twelve species during 4 years, among which the proportion of abundance of Pseudoanabaena limnetica begin to rise in 2018 and reached 46.57% in 2019 (the highest during the study period). The niche breadth (0.259–0.925) and overlap value (0–0.991) of P. limnetica have an obvious seasonal trend and are significantly affected by environmental factors such as water temperature, nutrients, and interspecific competition. This is primarily reflected in the high adaptability of the dominant species to changes in the N:P concentration ratio in water. Variance Partitioning Analysis (VPN) results show that the diffusion degree of P. limnetica is the result of the interaction between internal (i.e. interspecific competition, with a contribution rate of 13.4%) and external (i.e. environmental factors, with a contribution rate of 86.6%). The greater the external influence, the higher the diffusion degree. The results of niche-based theories and neutral-based theories showed that the stable community structure (variance rate (VR > 1)) and the excessive fast diffusion rate of dominant species (migration rate (m = 0.84)) may lead to the risk of P. limnetica and other toxic filamentous cyanobacteria blooms. The results provide basic data for the study of early warnings regarding phytoplankton community succession and cyanobacteria blooms in large reservoirs in the karst areas. |
| first_indexed | 2024-12-12T22:18:12Z |
| format | Article |
| id | doaj.art-83335107331b4b90a03954da686fdf8d |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-12-12T22:18:12Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-83335107331b4b90a03954da686fdf8d2022-12-22T00:10:00ZengElsevierEcological Indicators1470-160X2022-05-01138108806Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stageYiming Ma0Qiuhua Li1Shaopu Pan2Chen Liu3Mengshu Han4Anton Brancelj5Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China; Guizhou International Science & Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guizhou Normal University, Guiyang 550001, ChinaKey Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China; Guizhou International Science & Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guizhou Normal University, Guiyang 550001, China; Corresponding author at: Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China.Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China; Guizhou International Science & Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guizhou Normal University, Guiyang 550001, ChinaKey Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China; Guizhou International Science & Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guizhou Normal University, Guiyang 550001, ChinaGuizhou International Science & Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guizhou Normal University, Guiyang 550001, China; Key Laboratory for Information and Computing Science of Guizhou Province, Guizhou Normal University, Guiyang 550001, ChinaNational Institute of Biology, Department for Ecosystems and Organisms Research, 1000 Ljubljana, Slovenia; University of Nova Gorica, Faculty of Environmental Sciences, 5000 Nova Gorica, SloveniaIn aquatic ecosystems, the dynamics of ecological parameters play an important role in community organization. To understand the changes in the phytoplankton community structure in karstic reservoirs, the Hongfeng reservoir in Guizhou plateau was monitored monthly from 2016 to 2019. The results showed that the dominant organisms in phytoplankton comprised five phyla and twelve species during 4 years, among which the proportion of abundance of Pseudoanabaena limnetica begin to rise in 2018 and reached 46.57% in 2019 (the highest during the study period). The niche breadth (0.259–0.925) and overlap value (0–0.991) of P. limnetica have an obvious seasonal trend and are significantly affected by environmental factors such as water temperature, nutrients, and interspecific competition. This is primarily reflected in the high adaptability of the dominant species to changes in the N:P concentration ratio in water. Variance Partitioning Analysis (VPN) results show that the diffusion degree of P. limnetica is the result of the interaction between internal (i.e. interspecific competition, with a contribution rate of 13.4%) and external (i.e. environmental factors, with a contribution rate of 86.6%). The greater the external influence, the higher the diffusion degree. The results of niche-based theories and neutral-based theories showed that the stable community structure (variance rate (VR > 1)) and the excessive fast diffusion rate of dominant species (migration rate (m = 0.84)) may lead to the risk of P. limnetica and other toxic filamentous cyanobacteria blooms. The results provide basic data for the study of early warnings regarding phytoplankton community succession and cyanobacteria blooms in large reservoirs in the karst areas.http://www.sciencedirect.com/science/article/pii/S1470160X22002771PhytoplanktonPseudoanabaena limneticaNicheInterspecific associationsHongfeng Reservoir |
| spellingShingle | Yiming Ma Qiuhua Li Shaopu Pan Chen Liu Mengshu Han Anton Brancelj Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage Ecological Indicators Phytoplankton Pseudoanabaena limnetica Niche Interspecific associations Hongfeng Reservoir |
| title | Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage |
| title_full | Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage |
| title_fullStr | Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage |
| title_full_unstemmed | Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage |
| title_short | Niche and interspecific associations of Pseudoanabaena limnetica – Exploring the influencing factors of its succession stage |
| title_sort | niche and interspecific associations of pseudoanabaena limnetica exploring the influencing factors of its succession stage |
| topic | Phytoplankton Pseudoanabaena limnetica Niche Interspecific associations Hongfeng Reservoir |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X22002771 |
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