Results 31 to 40 of about 1,139,197 (299)
Planktonic prey size selection reveals an emergent keystone predator effect and niche partitioning.
PLoS ONE, 2023 Marine herbivorous protists are often the dominant grazers of primary production. We developed a size-based model with flexible size-based grazing to encapsulate taxonomic and behavioral diversity.
Darcy A A Taniguchi +2 more
doaj +2 more sources
Measuring Selective Grazing with Fistulated Steers
Journal of Dairy Science, 1960 Abstract Four grazing trials were conducted during 1958, with three on a Kentucky bluegrass-white clover pasture and the other on a tall fescue-Ladino clover pasture. Steers with either rumen or esophageal fistulas were used to sample the forage at two- to three-day intervals. Selective grazing was exhibited on the pasture studies. Botanical analysis
A.L. Lesperance +3 more
openaire +1 more source
Dynamics of Sudanian savanna-woodland ecosystem in response to disturbances [PDF]
, 2007 Grazing, fire and selective tree cutting are major disturbances shaping species diversity and productivity in savanna-woodland ecosystems. Their effects, however, are highly variable and poorly understood.
Savadogo, Patrice
core +1 more source
Phytoplankton cell size: intra- and interspecific effects of warming and grazing. [PDF]
PLoS ONE, 2012 Decreasing body size has been suggested as the third universal biological response to global warming after latitudinal/altitudinal range shifts and shifts in phenology.
Kalista Higini Peter, Ulrich Sommer
doaj +1 more source
Degree of Herbage Selection by Grazing Cattle
Journal of Dairy Science, 1954 Summary An investigation was made of the degree of selective grazing exercised by growing steers. A series of 66 individual trials was conducted with six herbages, each at three to five different stages of growth. The degree of discriminate grazing was marked with almost all herbages examined.
W.A. Hardison +3 more
openaire +1 more source
Research methodology of grazing [PDF]
, 2011 Throughout Europe, grass is the main feed for dairy cattle. This report presents the main results of the first meeting of the European Grassland Federation (EGF) Working Group Grazing in Kiel on 29 August 2010.
Vliegher, A., de +4 more
core
A Multi‐Scale Machine Learning Framework for the Inverse Design of High Entropy Alloys
Advanced Engineering Materials, EarlyView.High‐entropy alloys offer vast potential for various applications, including electrocatalysis; however, their compositional complexity challenges conventional screening. We introduce an inverse‐design framework combining two neural networks to determine optimal compositions and reconstruct nanoparticle geometry from targeted properties and conventional
Mikael Takoutsin +14 more
wiley +1 more source
High biomass turnover rates of endosymbiotic nitrogen‐fixing cyanobacteria in the western Bering Sea
Limnology and Oceanography Letters, 2022 Recent studies have described active nitrogen fixation in high‐latitude waters, but the ecological controls on the occurrence or activity of nitrogen‐fixing organisms (diazotrophs) in such systems remain unknown.
Shunyan Cheung +9 more
doaj +1 more source
A multi-species model to assess the effect of refugia on worm control and anthelmintic resistance in sheep grazing systems [PDF]
, 2011 Develop a computer simulation model that uses daily meteorological data and farm management practices to predict populations of Trichostrongylus colubriformis, Haemonchus contortus and Teladorsagia (Ostertagia) circumcincta and the evolution of ...
Barnes, E.H. +16 more
core +1 more source
Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer
Advanced Functional Materials, EarlyView.Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero +12 more
wiley +1 more source