Results 11 to 20 of about 684,968 (300)
Grazing resistance in phytoplankton [PDF]
Hydrobiologia, 2020 Phytoplankton is confronted with a variable assemblage of zooplankton grazers that create a strong selection pressure for traits that reduce mortality. Phytoplankton is, however, also challenged to remain suspended and to acquire sufficient resources for
M. Lürling
semanticscholar +2 more sources
Grazing lawns and overgrazing in frequently grazed grass communities [PDF]
Ecology and Evolution, 2022 AbstractFrequent grazing can establish high forage value grazing lawns supporting high grazer densities, but can also produce overgrazed grass communities with unpalatable or low grass basal cover, supporting few grazers. Attempts to create grazing lawns via concentrated grazing, with a goal to increase grazer numbers, are thus risky without knowing ...
Gareth P. Hempson +3 more
openaire +3 more sources
Spatial Distribution of Highland Cattle in Alnus viridis Encroached Subalpine Pastures
Frontiers in Ecology and Evolution, 2021 Green alder (Alnus viridis) is a shrub species that has expanded over former pastures in Central Europe due to land abandonment, leading to negative agri-environmental impacts, such as a reduction in forage yield and quality and an increase in nitrate ...
Mia Svensk +7 more
doaj +1 more source
The effects of livestock grazing on biodiversity are multi-trophic: a meta-analysis.
Ecology Letters, 2020 Anthropogenic disturbance has generated a significant loss of biodiversity worldwide and grazing by domestic herbivores is a contributing disturbance. Although the effects of grazing on plants are commonly explored, here we address the potential multi ...
Alessandro Filazzola +7 more
semanticscholar +1 more source
Microorganisms, 2023 This study compared the growth performance, serum biochemical indicators, rumen fermentation parameters, rumen bacterial structure, and fecal bacterial structure of cattle and yaks fed for two months and given a feed containing concentrate of a roughage ...
Xiaojing Liu +9 more
doaj +1 more source
Grazing impact oscillations [PDF]
Physical Review E, 2000 An impact oscillator is a periodically driven system that hits a wall when its amplitude exceeds a critical value. We study impact oscillations where collisions with the wall are with near-zero velocity (grazing impacts). A characteristic feature of grazing impact dynamics is a geometrically converging series of transitions from a nonimpacting period-1
Weger, J.G. +2 more
openaire +5 more sources
An international terminology for grazing lands and grazing animals [PDF]
Grass and Forage Science, 2011 Preface 2 Members of the committee 3 Acknowledgements 3 An International Terminology for Grazing Lands and Grazing Animals 1. Grazing land terms 4 2. Vegetation: descriptive terms 6 3. Forage growth and harvest 8 4. Forage nutritive value and intake 9 5. Management of grazing lands 12 6. Land–forage–animal relationships 15 7.
C. Batello +10 more
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Fermentation, 2022 Copper (Cu) is essential for the health of livestock, however, the optimal source and level of dietary Cu for yaks are uncertain. To fill this important gap, we designed an in vitro study to examine the effects of three Cu sources, namely Cu methionine ...
Xinsheng Zhao +4 more
doaj +1 more source
Frontiers in Veterinary Science, 2021 The intensity and frequency of grazing affect the defoliating strategy of ruminants, their daily nutrient intake, thus nutrition and physiological status.
Angel S. Zubieta +13 more
doaj +1 more source
Differences in the epidemiology of theileriosis on smallholder dairy farms in contrasting agro-ecological and grazing strata of highland Kenya [PDF]
, 2000 A prospective cohort study was conducted in five purposively-sampled agro-ecological zone (AEZ)-grazing system strata in Murang’a District, Kenya, between March 1995 and June 1996.
Brown, R. N. +5 more
core +2 more sources