Abstract The objective of the experiment was the opinion of respondent about effects of Grazing on Tabar plant on animal health and milk characteristic in Gezira State, Sudan. This the questionnaire was conducted in two localities of Gezira state where Tabar plant was cultivated. This included, South Gezira locality and Greater Wad Madani Locality. The questionnaire was distributed randomly to...

Concern over the accelerating loss of biodiversity has stimulated renewed interest in relationships among species richness, species composition, and the functional properties of ecosystems. Mechanistically, the degree of functional differentiation or complementarity among individual species determines the form of such relationships and is thus important to distinguishing among alternative hypot...

Background & Aim: Iran has a long history in ethnobotany and ethnopharmacology. The indigenous people in YahyaAbad area, is located in the conserved area of the Karkas mountains, are used many plants and natural material for treatment their diseases.  YahyaAbad area is an important part of central mountains of Kashan, Central Iran. There are many plant species in this area which have medicinal ...

Background & Aim: Iran has a long history in ethnobotany and ethnopharmacology. The indigenous people in YahyaAbad area, is located in the conserved area of the Karkas mountains, are used many plants and natural material for treatment their diseases.  YahyaAbad area is an important part of central mountains of Kashan, Central Iran. There are many plant species in this area which have medicinal ...

Vernal pools in the Sacramento Valley are essentially islands of native flora among a grassland composed primarily of exotic annual species. In managing the vernal pool landscape to sustain these islands of native flora, the integrity of the landscape’s hydrology must be maintained. One management decision that may indirectly affect hydrology is complete rest from grazing. Although the native v...

• Natural and human-caused wildfires have long shaped North American landscapes. • A national focus on reducing fire fuels is opening a door for targeted grazing. • Targeted grazing typically tackles four fire fuel types – grass, shrub, slash, and timber. • Knowledge of fuel characteristics and species foraging habits lays the groundwork for developing grazing prescriptions. • Ecological object...

Overgrazing affects plant communities, and is a significant disturbance factor in arid and semi-arid regions. The immediate changes of plant communities after overgrazing in the disturbed arid ecosystems of Iran have been poorly studied. We recorded data from 100 random samples before and after overgrazing in the Golbahar plain located in the northeastern Iran to determine the changes in the pl...

The interaction of resource availability and disturbance can strongly affect plant species richness and the spread of exotic plants. Several ecological theories posit that disturbance mediates the richness-reducing effects of increased competition as resource levels rise. In the low-nutrient serpentine grasslands of the San Francisco Bay Area, the fertilizing effects of atmospheric nitrogen (N)...

Fire and grazing can interact to affect the structure and composition of vegetation communities in a manner that may differ from the effects of fire or grazing that occurs in isolation of the other. In order to better understand the effects of a fire-grazing interaction at the level of an individual plant species, we studied the response of a perennial tallgrass prairie forb, Arnoglossum planta...

The effects of grazing rest on rangelands are different in different climates and knowledge of these effects is necessary to apply correct management. For this purpose, this study was carried out on the percent vegetation cover (PVC) and forage production (FP) of range species at the Nir Range Research Station in Yazd province as a model of steppe rangelands of Iran. In the study area, differen...