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Grazing pressure information


Grazing pressure is defined as the number of grazing animals of a specified class (age, species, physiological status like pregnant) per unit weight of herbage (herbage biomass). It is well established in general usage. [1]

  1. ^ Hodson, J. (1979). "Nomenclature and definitions in grazing studies". Grass and Forage Science. 34: 11–17. doi:10.1111/j.1365-2494.1979.tb01442.x.

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Grazing pressure

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particular have evolved in the presence of grazing from large herbivores and are well-adapted to it. Grazing pressure due to livestock can be regulated and...

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Savanna

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commonly used for grazing domestic livestock. As a result, much of the world's savannas have undergone change as a result of grazing by sheep, goats and...

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Celtic rainforest

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above rivers and lakes which have avoided clearance and intensive grazing pressure. There are notable examples in Ireland especially along its western...

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Anabaena

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input into its symbiotic relationships, protecting the plant from grazing pressure. A DNA sequencing project was undertaken in 1999, which mapped the...

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Grazing

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different strategies of grazing for optimum production: grazing may be continuous, seasonal, or rotational within a grazing period. Longer rotations...

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Pseudophilotes sinaicus

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high price of fodder, grazing is the only choice. In the past, the Bedouins had developed a system for rotating grazing pressure in order to protect plants...

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Shortgrass prairie

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grama (Bouteloua curtipendula). The prairie was formerly maintained by grazing pressure of American bison, which is the keystone species. Due to its semiarid...

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Urchin barren

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defined as an urchin-dominated area with little or no kelp. Urchin grazing pressure on kelp is a direct and observable cause of a "barren" area. However...

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Underground stem

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harmful elements such as fire. They can also protect plants from heavy grazing pressure from animals, the plant might be eaten to the ground but new growth...

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Zooplankton

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Grazing by single-celled zooplankton accounts for the majority of organic carbon loss from marine primary production. However, zooplankton grazing remains...

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Sirenia

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seagrasses. To counter this, they use a strategy called "cultivation grazing". This grazing can alter the composition of seagrass communities and favor species...

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Drought

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capacity for livestock. Drought in combination with high levels of grazing pressure can function as the tipping point for an ecosystem, causing woody encroachment...

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Conservation grazing

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Conservation grazing or targeted grazing is the use of semi-feral or domesticated grazing livestock to maintain and increase the biodiversity of natural...

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Ili pika

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Increased temperatures, likely from global warming, and increased grazing pressure may have caused the rapid decline in population. According to IUCN...

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Red sea urchin

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and are implicated in devastating kelp beds by forming grazing fronts. The intense grazing pressure exerted by urchins is an important link in a trophic...

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Temperate rainforest

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above rivers and lakes which have avoided clearance and intensive grazing pressure. There are notable examples on the islands and shores of Loch Maree...

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Appalachian balds

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the disappearance of the megaherbivores, grazing pressure was maintained by deer and elk, and then by the grazing animals of European settlers. Some recent...

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Pyrenean ibex

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Sierras de Cazorla, Segura y Las Villas Natural Park) increased the grazing pressure, as well as the risk of transmission of both native and exotic diseases...

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Chrysopogon zizanioides

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plant frost and wildfire resistant, and allow it to survive heavy grazing pressure. The leaves can become up to 300 centimetres (10 ft) long and 8 mm...

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Food web

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and the grazing web. Mushrooms produced by decomposers in the detrital web become a food source for deer, squirrels, and mice in the grazing web. Earthworms...

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Ophrys apifera

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orchids. In prehistory, the species presumably relied upon seasonal grazing pressure, or was limited to early succession habitats and permanent grassland...

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Garrigue

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The wild garrigue, then, is a man-formed landscape. The intensity of grazing pressure has had a direct response in the ecotope, reflected today in the decline...

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Nathu La

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sheep and pashmina-type goats in the region. There has been intense grazing pressure due to domestic and wild herbivores on the land. Yaks are found in...

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Spring bloom

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to nutrient depletion in the stratified water column and increased grazing pressure by zooplankton. The most limiting nutrient in the marine environment...

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Saharan dust

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as an iron-acquisition strategy. Other organisms, when subjected to grazing pressure, produce ligands which decrease the bioavailability of iron to themselves...

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1976 British Isles heatwave

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been becoming scrubland through natural succession because of reduced grazing pressure; the only long-term effect of the fires on Dorset heathlands was a...

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Abies nebrodensis

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replanting programmes are meeting with limited success due to heavy grazing pressure by livestock belonging to local farmers. Anyway, assisted migration...

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