scholarly journals Turion morphological responses to water nutrient concentrations and plant density in the submerged macrophyte Potamogeton crispus

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Chang Qian ◽  
Wenhua You ◽  
Dong Xie ◽  
Dan Yu
Keyword(s):  
Plant Density ◽  
Submerged Macrophyte ◽  
Nutrient Concentrations ◽  
Potamogeton Crispus ◽  
Morphological Responses

scholarly journals Phosphorus release during decomposition of the submerged macrophyte Potamogeton crispus

Limnology ◽  
2018 ◽  
Vol 19 (3) ◽  
pp. 355-366 ◽  
Author(s):  
Lizhi Wang ◽  
Qianjin Liu ◽  
Changwei Hu ◽  
Renjun Liang ◽  
Jicai Qiu ◽  
...  
Keyword(s):  
Phosphorus Release ◽  
Submerged Macrophyte ◽  
Potamogeton Crispus

scholarly journals Effects of nutrient availability and other elevational changes on bromeliad populations and their invertebrate communities in a humid tropical forest in Puerto Rico

2000 ◽  
Vol 16 (2) ◽  
pp. 167-188 ◽  
Author(s):  
Barbara A. Richardson ◽  
M. J. Richardson ◽  
F. N. Scatena ◽  
W. H. Mcdowell
Keyword(s):  
Species Richness ◽  
Primary Productivity ◽  
Net Primary Productivity ◽  
Plant Density ◽  
Nutrient Concentrations ◽  
Forest Types ◽  
Nutrient Inputs ◽  
Nitrogen And Phosphorus ◽  
Faunal Abundance ◽  
High Plant Density

Nutrient inputs into tank bromeliads were studied in relation to growth and productivity, and the abundance, diversity and biomass of their animal inhabitants, in three forest types along an elevational gradient. Concentrations of phosphorus, potassium and calcium in canopy-derived debris, and nitrogen and phosphorus in phytotelm water, declined with increasing elevation. Dwarf forest bromeliads contained the smallest amounts of debris/plant and lowest concentrations of nutrients in plant tissue. Their leaf turnover rate and productivity were highest and, because of high plant density, they comprised 12.8% of forest net primary productivity (0.47 t ha−1 y−1), and contained 3.3 t ha−1 of water. Annual nutrient budgets indicated that these microcosms were nutrient-abundant and accumulated < 5% of most nutrients passing through them. Exceptions were K and P in the dwarf forest, where accumulation was c. 25% of inputs. Animal and bromeliad biomass/plant peaked in the intermediate elevation forest, and were positively correlated with the debris content/bromeliad across all forest types. Animal species richness showed a significant mid-elevational peak, whereas abundance was independent of species richness and debris quantities, and declined with elevation as forest net primary productivity declined. The unimodal pattern of species richness was not correlated with nutrient concentrations, and relationships among faunal abundance, species richness, nutrient inputs and environment are too complex to warrant simple generalizations about nutrient resources and diversity, even in apparently simple microhabitats.

scholarly journals Maternal Environment Effect of Warming and Eutrophication on the Emergence of Curled Pondweed, Potamogeton crispus L.

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1285 ◽  
Author(s):  
Chao Li ◽  
Tao Wang ◽  
Min Zhang ◽  
Jun Xu
Keyword(s):  
Life History ◽  
Maternal Effects ◽  
Aquatic Plants ◽  
Early Life ◽  
Life Cycles ◽  
Submerged Macrophyte ◽  
Nutrient Inputs ◽  
Potamogeton Crispus ◽  
Offspring Performance ◽  
Phosphorus Addition

Maternal effects may play an important role in life history and offspring performance of aquatic plants. Performance and response of maternal and offspring aquatic plants can affect population dynamics and community composition. Understanding maternal effect can help to fill a gap in the knowledge of aquatic plant life cycles, and provide important insights for species’ responses to climate change and eutrophication. This study showed that maternal warming and eutrophication significantly affected the early life stages of curled pondweed, Potamogeton crispus, a submerged macrophyte. Propagule in warmed condition had higher germination percentages and a shorter mean germination time than those under ambient conditions. However, propagule germination in phosphorus addition treatment was inhibited due to the negative effect of eutrophication, e.g., phytoplankton competition and deteriorated underwater light. Meanwhile, elevated temperature led to a decrease of total nitrogen concentrations and an increase of carbon: nitrogen ratios in plant tissues, which may suggest that P. crispus will allocate more nutrients to propagules in order to resist the adverse effects of high temperature. A subsequent germination experiment in the same ambient condition showed that maternal warming promoted seedling emergence in contrast to maternal phosphorus addition. Consequently, global warming could modify population growth via maternal environmental effects on early life histories, while increased anthropogenic nutrient inputs may result in a decreased submerged macrophyte. These maternal effects on offspring performance may change competition and the survival of early life-history stages under climate warming and eutrophication through changing the ecological stoichiometry of plant tissue.

STUDY OF ARTIFICIAL SEEDS OF SUBMERGED MACROPHYTE POTAMOGETON CRISPUS L.

2009 ◽  
Vol 33 (4) ◽  
pp. 643-648
Author(s):  
Yan-Jie AN ◽  
Yan-Hui ZHANG ◽  
Shao YANG
Keyword(s):  
Submerged Macrophyte ◽  
Artificial Seeds ◽  
Potamogeton Crispus
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