Mycorrhizal fungi play a critical role in nutrient cycling and ecosystem function. They improve plant growth and survival through a mutualistic relationship in which photosynthates are exchanged for increased access to water and nutrients. Because the benefits realized are not equal among different plant–fungal species combinations, mycorrhizal fungi may help govern plant community structure an...

Salinity in agricultutal terms is the excess of salts above the level plant require. Most often it poses constrains in the growth hence productivity of the category of plants called glycophytes, wherein falls major crops, therefore is a serious concern. It is often recognized as excess of sodium ions (sodicity) that imparts life threatening consequences in plant due to mal-textured soil hindere...

Edaphic properties have been widely shown to influence community composition and distribution. However, the degree which edaphic factors can affect grasses in semi-arid lowlands is still little researched. We assessed significance of nine explain distributions 65 grass species with various ecological traits (i.e., indicator values for their preferred habitat) Pakistan. To record information on ...

MCDONALD, R. I. (Graduate School of Design, Harvard University, Cambridge, MA 02138), G. MOTZKIN AND D. R. FOSTER (Harvard Forest, Harvard University, Petersham, MA 01366). Assessing the influence of historical factors, contemporary processes, and environmental conditions on the distribution of invasive species. J. Torrey Bot. Soc. 135: 260–271. 2008.—Despite concern over potential detrimental ...