Seagrass macrofaunal abundance shows both multifractality and scale-invariant patchiness
نویسندگان
چکیده
منابع مشابه
Scale invariant distribution and multifractality of volatility multipliers in stock markets
The statistical properties of the multipliers of the absolute returns are investigated using one-minute high-frequency data of financial time series. The multiplier distribution is found to be independent of the box size s when s is larger than some crossover scale, providing direct evidence of the existence of scale invariance in financial data. The multipliers with base a = 2 are well approxi...
متن کاملDrift Macroalgal Abundance in Seagrass Beds: Investigating Large-Scale Associations with Physical and Biotic Attributes
The relationship between a suite of physical and biological factors and drift macroalgal abundance was examined in 12 seagrass sites spanning a distance of over 50 km within Tampa Bay, Florida, USA. Field sampling was conducted in December 1991, and drift algal abundance was determined by recording algal percent cover from 25 quadrants at each site. Additionally, drift rnacroalgae were collecte...
متن کاملParametric invariant random matrix model and the emergence of multifractality.
We propose a random matrix modeling for the parametric evolution of eigenstates. The model is inspired by a large class of quantized chaotic systems. Its unique feature is having parametric invariance while still possessing the nonperturbative breakdown that had been discussed by Wigner 50 years ago. Of particular interest is the emergence of an additional crossover to multifractality.
متن کاملMacrofaunal associations with seagrass epiphytes Relative importance of trophic and structural characteristics
Attached epiphytes often make important contributions to total primary production in seagrass meadows. Additionally, they may increase the spatial complexity of seagrass habitats. Experiments conducted using artificial seagrass units (ASU) manipulated both epiphytic structure and epiphytic food resources. Previous work suggested that the increase in faunal density associated with epiphytes was ...
متن کاملEffects of propeller scarring on macrofaunal use of the seagrass Thalassia testudinum
Propeller scarring within seagrass beds is common in shallow coastal waters. Scarring has the potential to fragment seagrass beds, resulting in habitat loss, decreased productivity, and the possibility for further erosion and degradation. We conducted a study in Thalassia testudinum beds in Puerto Rico to determine whether seagrass macrofauna are affected by this disturbance. Four sampling zone...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Marine Environmental Research
سال: 2018
ISSN: 0141-1136
DOI: 10.1016/j.marenvres.2018.04.009