Relationships between aquatic plants and environmental factors along a steep Himalayan altitudinal gradient

Vegetation-Environmental Variable Relationships in Ponds of Various Origins along an Altitudinal Gradient

“…Due to the fact that the majority of natural ponds occur at high altitudes with low or no human impact and all of them are oligotrophic, while artificial ponds are on the opposite end of the gradient, it is likely that mainly natural environmental factors related to altitude are responsible for different species richness of both groups. Our results confirmed that altitude and correlated proximate environmental variables are among the most significant predictors of macrophyte richness [8,9,13].…”

“…Duration of ice and snow cover and water temperature are strongly controlled by air temperature. Altitude and related climatic factors are the strongest predictors of both species richness and community composition [7][8][9]. It is generally known that macrophyte richness decreases with increasing altitude [7].…”

Initial growth of Brachiaria subquadripara (Trin.) Hitchc. plants under different nutritional conditions

“…But is still not clear the mechanism that allows the plant B. subquadripara tolerate high levels of nutrients dissolved in water. These results confirm those reported by Lacoul & Freedman (2006). Xie et al (2004) verified that Eichhomia crassipes plants growth and propagation are stimulated when N and P availability in the medium where the plants are is regularly augmented.…”

Predicting aquatic macrophyte occurrence in soft-water oligotrophic lakes (Pyrenees mountain range)

“…Altitude is a strong factor determining the presence and diversity of aquatic macrophytes because it is directly linked to proximate environmental constraints such as icecover duration, average temperature or light availability Murphy, 2002;Lacoul and Freedman, 2006;Chappuis et al, 2011a). Regional studies from alpine lakes in Europe have shown that ice-cover duration determines the presence and succession of some phytoplankton and zooplankton species and communities, and therefore dominates the dynamics of the lake ecosystem (Catalan et al, 2009).…”