mass ratio hypothesisnon‐random species lossRandom species loss has been shown experimentally to reduce ecosystem function, sometimes more than other anthropogenic environmental changes. Yet, controversy surrounds the importance of this finding for natural systems where species loss is non‐random. We ...
n. The extinction of a large number of species within a relatively short period of time, as between the Cretaceous and Tertiary Periods when three-quarters of all species on earth, including most dinosaurs, became extinct. American Heritage® Dictionary of the English Language, Fifth Edition. ...
mass ratio relation for SU Ursae Majoris stars and the removal of the inner disk mass ratiorelation for SU UMa stars using the "superhump" mass ratioderivedfromthetidalresonancemodel.WendthattherelationbyJurcevicetal.(1994)isvalidfordwarfnovaeabovetheperiodgapbutnotforSUUMastars.Underthehypothesisof...
The mass ratio hypothesis provides the key link between plant functional traits (PFTs) and ecosystem processes. Despite its centrality to the field it has had few direct tests. A litter decomposition study using grassland species, singly and in mixtures, was set up to see whether simple leaf tr...
Leaf dry matter content as a predictor of grassland litter decomposition: a test of the 'mass ratio hypothesis' The mass ratio hypothesis provides the key link between plant functional traits (PFTs) and ecosystem processes. Despite its centrality to the field it has ... RJ Pakeman,A Eastwood...
(Cushnie et al.6: 31.8 vs. 28.1 mg/m2,p = 0.007; Venkatesan et al.7: odds ratio [OR] 1.17,p < 0.001), while 2 denied a significant association between CES and increased BMI (Shen et al.8: BMI of CES patients 27.5 kg/m2; Kaiser et al.9). All studies were ...
(% energy). Energy-adjusted total and animal protein intakes, as well as the animal-to-plant protein ratio, were higher in the upper tertile compared to those in the bottom or middle tertiles. Energy-adjusted phosphorus and vitamin B2 intakes were significantly higher in the upper tertile when...
Finally, we discuss the need for more detailed realistic modelling of tidal stripping over a wider range of parameter space, and observations to further test the stripping hypothesis. 展开 关键词: galaxies: dwarf galaxies: evolution galaxies: kinematics and dynamics galaxies: star clusters: general ...
The ratio D/δ has the same dimensions as the permeate flux J and corresponds to the mass transfer coefficient, k. Accordingly, Eq. (11.59) can be written as: (11.60)J=kln(Cw−CPCB−CP) Like other mass transfer coefficients, the value of k depends on the flow geometry, the flow ...
2. percentage, share, cut, division, section, proportion, slice, ratio, portion, quota, subdivision, moiety only a small fraction of the cost 3. fragment, part, piece, section, sector, selection, segment You will find only a fraction of the collection on display. Collins Thesaurus of the ...